| /* | 
 |  * Copyright (c) 2021, Alliance for Open Media. All rights reserved | 
 |  * | 
 |  * This source code is subject to the terms of the BSD 3-Clause Clear License | 
 |  * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear | 
 |  * License was not distributed with this source code in the LICENSE file, you | 
 |  * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/.  If the | 
 |  * Alliance for Open Media Patent License 1.0 was not distributed with this | 
 |  * source code in the PATENTS file, you can obtain it at | 
 |  * aomedia.org/license/patent-license/. | 
 |  */ | 
 |  | 
 | #include "av1/encoder/encodetxb.h" | 
 |  | 
 | #include "aom_ports/mem.h" | 
 | #include "av1/common/blockd.h" | 
 | #include "av1/common/hr_coding.h" | 
 | #include "av1/common/idct.h" | 
 | #include "av1/common/pred_common.h" | 
 | #include "av1/common/reconintra.h" | 
 | #include "av1/common/scan.h" | 
 | #include "av1/common/secondary_tx.h" | 
 | #include "av1/encoder/bitstream.h" | 
 | #include "av1/common/cost.h" | 
 | #include "av1/encoder/encodeframe.h" | 
 | #include "av1/encoder/hash.h" | 
 | #include "av1/encoder/rdopt.h" | 
 | #include "av1/encoder/tokenize.h" | 
 |  | 
 | // set rd related information for the coefficient at current position. | 
 | void set_coeff_info(tran_low_t qc_low, tran_low_t dqc_low, tran_low_t qc_up, | 
 |                     tran_low_t dqc_up, int64_t cost_low, int64_t cost_up, | 
 |                     int rate_low, int rate_up, bool upround, | 
 |                     coeff_info *coef_info, const int scan_idx) { | 
 |   if (!scan_idx) { | 
 |     return; | 
 |   } | 
 |   coef_info[scan_idx].upround = upround; | 
 |   if (upround) { | 
 |     coef_info[scan_idx].qc = qc_low; | 
 |     coef_info[scan_idx].dqc = dqc_low; | 
 |   } else { | 
 |     coef_info[scan_idx].qc = qc_up; | 
 |     coef_info[scan_idx].dqc = dqc_up; | 
 |   } | 
 |  | 
 |   coef_info[scan_idx].tunable = | 
 |       (abs(coef_info[scan_idx].qc) < MAX_BASE_BR_RANGE) || | 
 |       ((abs(qc_up) == MAX_BASE_BR_RANGE) && upround); | 
 |   if (coef_info[scan_idx].tunable) { | 
 |     if (upround) { | 
 |       coef_info[scan_idx].delta_cost = (cost_low - cost_up); | 
 |       coef_info[scan_idx].delta_rate = (rate_low - rate_up); | 
 |     } else { | 
 |       coef_info[scan_idx].delta_cost = (cost_up - cost_low); | 
 |       coef_info[scan_idx].delta_rate = (rate_up - rate_low); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | typedef struct LevelDownStats { | 
 |   int update; | 
 |   tran_low_t low_qc; | 
 |   tran_low_t low_dqc; | 
 |   int64_t dist0; | 
 |   int rate; | 
 |   int rate_low; | 
 |   int64_t dist; | 
 |   int64_t dist_low; | 
 |   int64_t rd; | 
 |   int64_t rd_low; | 
 |   int64_t nz_rd; | 
 |   int64_t rd_diff; | 
 |   int cost_diff; | 
 |   int64_t dist_diff; | 
 |   int new_eob; | 
 | } LevelDownStats; | 
 |  | 
 | static AOM_FORCE_INLINE int get_dqv(const int32_t *dequant, int coeff_idx, | 
 |                                     const qm_val_t *iqmatrix) { | 
 |   int dqv = dequant[!!coeff_idx]; | 
 |   if (iqmatrix != NULL) | 
 |     dqv = | 
 |         ((iqmatrix[coeff_idx] * dqv) + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; | 
 |   return dqv; | 
 | } | 
 |  | 
 | void av1_alloc_txb_buf(AV1_COMP *cpi) { | 
 |   AV1_COMMON *cm = &cpi->common; | 
 |   // We use the frame level sb size here instead of the seq level sb size. This | 
 |   // is because fr_sb_size <= seq_sb_size, and we want to avoid repeated | 
 |   // allocations. So we prefer to to allocate a larger memory in one go here. | 
 |   int size = ((cm->mi_params.mi_rows >> cm->mib_size_log2) + 1) * | 
 |              ((cm->mi_params.mi_cols >> cm->mib_size_log2) + 1); | 
 |  | 
 |   av1_free_txb_buf(cpi); | 
 |   // TODO(jingning): This should be further reduced. | 
 |   CHECK_MEM_ERROR(cm, cpi->coeff_buffer_base, | 
 |                   aom_memalign(32, sizeof(*cpi->coeff_buffer_base) * size)); | 
 | } | 
 |  | 
 | void av1_free_txb_buf(AV1_COMP *cpi) { aom_free(cpi->coeff_buffer_base); } | 
 |  | 
 | /*!\brief Code an input integer value using Exp-Golomb coding with order k | 
 |  * and write the resulting codeword to bitstream | 
 |  * | 
 |  * \ingroup coefficient_coding | 
 |  * | 
 |  * This function codes an input integer value level using Exp-Golomb coding | 
 |  * with order k and writes the resulting codeword to bitstream | 
 |  * | 
 |  * \param[in]    w         Pointer to the bitstream writer | 
 |  * \param[in]    level     Input integer value to be coded | 
 |  * \param[in]    k         Order of Exp-Golomb coding | 
 |  * | 
 |  */ | 
 | static void write_exp_golomb(aom_writer *w, int level, int k) { | 
 |   int x = level + (1 << k); | 
 |   int length = 0; | 
 |  | 
 |   length = get_msb(x) + 1; | 
 |   assert(length > k); | 
 |  | 
 | #if CONFIG_BYPASS_IMPROVEMENT | 
 |   aom_write_literal(w, 0, length - 1 - k); | 
 |   aom_write_literal(w, x, length); | 
 | #else | 
 |   for (int i = 0; i < length - 1 - k; ++i) aom_write_bit(w, 0); | 
 |   for (int i = length - 1; i >= 0; --i) aom_write_bit(w, (x >> i) & 0x01); | 
 | #endif  // CONFIG_BYPASS_IMPROVEMENT | 
 | } | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 | /*!\brief Encode an input integer value using Truncated-Rice coding and write | 
 |  * to bitstream | 
 |  * | 
 |  * \ingroup coefficient_coding | 
 |  * | 
 |  * This function encodes an input integer value using Truncated-Rice | 
 |  * coding with a given set of parameters: Rice parameter m, maximum | 
 |  * unary prefix length cmax, and Exp-Golomb order of k. | 
 |  * | 
 |  * It first derives the unary prefix q based on the input integer level and | 
 |  * Rice parameter m. Given a shorter prefix (q < cmax), it encodes the | 
 |  * remaining offset of the integer using Golomb-Rice coding; otherwise | 
 |  * (i.e., when q >= cmax) it keeps the prefix length at cmax, and encodes the | 
 |  * remaining offset using Exp-Golomb with order k. | 
 |  * | 
 |  * Finally, it writes the resulting binary codeword to the bitstream w. | 
 |  * | 
 |  * \param[in]    w         Pointer to the bitstream writer | 
 |  * \param[in]    level     Input integer value to be coded | 
 |  * \param[in]    m         Parameter of the Rice distribution | 
 |  * \param[in]    k         Order of the Exp-Golomb code | 
 |  * \param[in]    cmax      Maximum unary prefix length above which Exp-Golomb | 
 |  *                         is used instead of Golomb-Rice coding | 
 |  * | 
 |  */ | 
 | static void write_truncated_rice(aom_writer *w, int level, int m, int k, | 
 |                                  int cmax) { | 
 |   int q = level >> m; | 
 |  | 
 |   if (q >= cmax) { | 
 |     aom_write_literal(w, 0, cmax); | 
 |     write_exp_golomb(w, level - (cmax << m), k); | 
 |   } else { | 
 |     const int mask = (1 << m) - 1; | 
 |     aom_write_literal(w, 0, q); | 
 |     aom_write_literal(w, 1, 1); | 
 |     aom_write_literal(w, level & mask, m); | 
 |   } | 
 | } | 
 |  | 
 | /*!\brief Encode and write to bitstream the input high range (HR) value of the | 
 |  * coefficient level using adaptive Truncated-Rice coding . | 
 |  * | 
 |  * \ingroup coefficient_coding | 
 |  * | 
 |  * This function encodes the input high range (HR) value of the coefficient | 
 |  * level level using adaptive Truncated-Rice. It first derives the Rice | 
 |  * parameter m from the input context value ctx. It then invokes the | 
 |  * write_truncated_rice function to encode the input value (level) with | 
 |  * Rice parameter m, Exp-Golomb at order k = m + 1, and maximum unary prefix | 
 |  * length of cmax = AOMMIN(m + 4, 6). The write_truncated_rice function is | 
 |  * also in charge of writing the resulting codeword to the bitstream w. | 
 |  * | 
 |  * \param[in]    w         Pointer to the bitstream writer | 
 |  * \param[in]    level     Input high range (HR) value of the coefficient level | 
 |  *                         to be coded | 
 |  * \param[in]    ctx       Context value | 
 |  * | 
 |  */ | 
 | static void write_adaptive_hr(aom_writer *w, int level, int ctx) { | 
 |   int m = get_adaptive_param(ctx); | 
 |   write_truncated_rice(w, level, m, m + 1, AOMMIN(m + 4, 6)); | 
 | } | 
 |  | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 | static AOM_FORCE_INLINE int64_t get_coeff_dist(tran_low_t tcoeff, | 
 |                                                tran_low_t dqcoeff, int shift) { | 
 |   const int64_t diff = (tcoeff - dqcoeff) * (1 << shift); | 
 |   const int64_t error = diff * diff; | 
 |   return error; | 
 | } | 
 |  | 
 | static const int8_t eob_to_pos_small[33] = { | 
 |   0, 1, 2,                                        // 0-2 | 
 |   3, 3,                                           // 3-4 | 
 |   4, 4, 4, 4,                                     // 5-8 | 
 |   5, 5, 5, 5, 5, 5, 5, 5,                         // 9-16 | 
 |   6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6  // 17-32 | 
 | }; | 
 |  | 
 | static const int8_t eob_to_pos_large[17] = { | 
 |   6,                               // place holder | 
 |   7,                               // 33-64 | 
 |   8,  8,                           // 65-128 | 
 |   9,  9,  9,  9,                   // 129-256 | 
 |   10, 10, 10, 10, 10, 10, 10, 10,  // 257-512 | 
 |   11                               // 513- | 
 | }; | 
 |  | 
 | static AOM_FORCE_INLINE int get_eob_pos_token(const int eob, int *const extra) { | 
 |   int t; | 
 |  | 
 |   if (eob < 33) { | 
 |     t = eob_to_pos_small[eob]; | 
 |   } else { | 
 |     const int e = AOMMIN((eob - 1) >> 5, 16); | 
 |     t = eob_to_pos_large[e]; | 
 |   } | 
 |  | 
 |   *extra = eob - av1_eob_group_start[t]; | 
 |  | 
 |   return t; | 
 | } | 
 |  | 
 | #if CONFIG_ENTROPY_STATS | 
 | void av1_update_eob_context(int cdf_idx, int eob, TX_SIZE tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                             int is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                             PLANE_TYPE plane, FRAME_CONTEXT *ec_ctx, | 
 |                             FRAME_COUNTS *counts, uint8_t allow_update_cdf) { | 
 | #else | 
 | void av1_update_eob_context(int eob, TX_SIZE tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                             int is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                             PLANE_TYPE plane, FRAME_CONTEXT *ec_ctx, | 
 |                             uint8_t allow_update_cdf) { | 
 | #endif | 
 |   int eob_extra; | 
 |   const int eob_pt = get_eob_pos_token(eob, &eob_extra); | 
 |   TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |  | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 | #if CONFIG_EOB_POS_LUMA | 
 |   const int pl_ctx = get_eob_plane_ctx(plane, is_inter); | 
 | #else | 
 |   const int pl_ctx = plane; | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   switch (eob_multi_size) { | 
 |     case 0: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi16[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) { | 
 |         update_cdf(ec_ctx->eob_flag_cdf16[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 6); | 
 |       } | 
 |       break; | 
 |     case 1: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi32[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) | 
 |         update_cdf(ec_ctx->eob_flag_cdf32[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 5); | 
 |       break; | 
 |     case 2: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi64[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) | 
 |         update_cdf(ec_ctx->eob_flag_cdf64[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 4); | 
 |       break; | 
 |     case 3: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi128[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) { | 
 |         update_cdf(ec_ctx->eob_flag_cdf128[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 3); | 
 |       } | 
 |       break; | 
 |     case 4: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi256[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) { | 
 |         update_cdf(ec_ctx->eob_flag_cdf256[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 2); | 
 |       } | 
 |       break; | 
 |     case 5: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi512[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) { | 
 |         update_cdf(ec_ctx->eob_flag_cdf512[pl_ctx], eob_pt - 1, | 
 |                    EOB_MAX_SYMS - 1); | 
 |       } | 
 |       break; | 
 |     case 6: | 
 |     default: | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++counts->eob_multi1024[cdf_idx][pl_ctx][eob_pt - 1]; | 
 | #endif | 
 |       if (allow_update_cdf) { | 
 |         update_cdf(ec_ctx->eob_flag_cdf1024[pl_ctx], eob_pt - 1, EOB_MAX_SYMS); | 
 |       } | 
 |       break; | 
 |   } | 
 |  | 
 |   const int eob_offset_bits = av1_eob_offset_bits[eob_pt]; | 
 |   if (eob_offset_bits > 0) { | 
 |     int eob_ctx = eob_pt - 3; | 
 |     int eob_shift = eob_offset_bits - 1; | 
 |     int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; | 
 | #if CONFIG_ENTROPY_STATS | 
 |     counts->eob_extra[cdf_idx][txs_ctx][plane][eob_ctx][bit]++; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |     if (allow_update_cdf) | 
 |       update_cdf(ec_ctx->eob_extra_cdf[txs_ctx][plane][eob_ctx], bit, 2); | 
 |   } | 
 | } | 
 |  | 
 | static int get_eob_cost(int eob, const LV_MAP_EOB_COST *txb_eob_costs, | 
 |                         const LV_MAP_COEFF_COST *txb_costs | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                         , | 
 |                         const int is_inter | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 | ) { | 
 |   int eob_cost = 0; | 
 |   int eob_extra; | 
 |   const int eob_pt = get_eob_pos_token(eob, &eob_extra); | 
 |   eob_cost += txb_eob_costs->eob_cost | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                   [is_inter] | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                   [eob_pt - 1]; | 
 |   const int eob_offset_bits = av1_eob_offset_bits[eob_pt]; | 
 |   if (eob_offset_bits > 0) { | 
 |     const int eob_ctx = eob_pt - 3; | 
 |     const int eob_shift = eob_offset_bits - 1; | 
 |     const int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; | 
 |     eob_cost += txb_costs->eob_extra_cost[eob_ctx][bit]; | 
 |     if (eob_offset_bits > 1) eob_cost += av1_cost_literal(eob_offset_bits - 1); | 
 |   } | 
 |   return eob_cost; | 
 | } | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 | static AOM_FORCE_INLINE int get_br_cost(tran_low_t level, const int *coeff_lps, | 
 |                                         int hr_ctx, int *hr_level) { | 
 |   const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   *hr_level = 0; | 
 |   if (level >= 1 + NUM_BASE_LEVELS + COEFF_BASE_RANGE) { | 
 |     const int r = level - COEFF_BASE_RANGE - NUM_BASE_LEVELS - 1; | 
 |     *hr_level = r; | 
 |     cost += av1_cost_literal(get_adaptive_hr_length(r, hr_ctx)); | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int get_br_lf_cost(tran_low_t level, | 
 |                                            const int *coeff_lps, int hr_ctx, | 
 |                                            int *hr_level) { | 
 |   const int base_range = | 
 |       AOMMIN(level - 1 - LF_NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   *hr_level = 0; | 
 |   if (level >= 1 + LF_NUM_BASE_LEVELS + COEFF_BASE_RANGE) { | 
 |     const int r = level - COEFF_BASE_RANGE - LF_NUM_BASE_LEVELS - 1; | 
 |     *hr_level = r; | 
 |     cost += av1_cost_literal(get_adaptive_hr_length(r, hr_ctx)); | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int get_br_cost_with_diff(tran_low_t level, | 
 |                                                   const int *coeff_lps, | 
 |                                                   int *diff, int hr_ctx, | 
 |                                                   int *hr_level) { | 
 |   const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level <= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) | 
 |     *diff += coeff_lps[base_range + COEFF_BASE_RANGE + 1]; | 
 |  | 
 |   *hr_level = 0; | 
 |   if (level >= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) { | 
 |     const int r = level - COEFF_BASE_RANGE - NUM_BASE_LEVELS - 1; | 
 |     *hr_level = r; | 
 |  | 
 |     int bits, diff_bits; | 
 |     bits = get_adaptive_hr_length_diff(r, hr_ctx, &diff_bits); | 
 |     *diff += av1_cost_literal(diff_bits); | 
 |     cost += av1_cost_literal(bits); | 
 |   } | 
 |  | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int get_br_lf_cost_with_diff(tran_low_t level, | 
 |                                                      const int *coeff_lps, | 
 |                                                      int *diff, int hr_ctx, | 
 |                                                      int *hr_level) { | 
 |   const int base_range = | 
 |       AOMMIN(level - 1 - LF_NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level <= COEFF_BASE_RANGE + 1 + LF_NUM_BASE_LEVELS) | 
 |     *diff += coeff_lps[base_range + COEFF_BASE_RANGE + 1]; | 
 |  | 
 |   *hr_level = 0; | 
 |   if (level >= COEFF_BASE_RANGE + 1 + LF_NUM_BASE_LEVELS) { | 
 |     const int r = level - COEFF_BASE_RANGE - LF_NUM_BASE_LEVELS - 1; | 
 |     *hr_level = r; | 
 |     int bits, diff_bits; | 
 |     bits = get_adaptive_hr_length_diff(r, hr_ctx, &diff_bits); | 
 |     *diff += av1_cost_literal(diff_bits); | 
 |     cost += av1_cost_literal(bits); | 
 |   } | 
 |  | 
 |   return cost; | 
 | } | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 | static INLINE int get_low_range(int abs_qc, int lf) { | 
 |   int base_levels = lf ? 6 : 4; | 
 |   int parity = abs_qc & 1; | 
 | #if ((COEFF_BASE_RANGE & 1) == 1) | 
 |   int br_max = COEFF_BASE_RANGE + base_levels - 1 - parity; | 
 |   int low = AOMMIN(abs_qc, br_max); | 
 |   low -= base_levels - 1; | 
 | #else | 
 |   int abs2 = abs_qc & ~1; | 
 |   int low = AOMMIN(abs2, COEFF_BASE_RANGE + base_levels - 2) + parity; | 
 |   low -= base_levels - 1; | 
 | #endif | 
 |   return low; | 
 | } | 
 |  | 
 | static INLINE int get_high_range(int abs_qc, int lf) { | 
 |   int base_levels = lf ? 6 : 4; | 
 |   int low_range = get_low_range(abs_qc, lf); | 
 |   int high_range = (abs_qc - low_range - (base_levels - 1)) >> 1; | 
 |   return high_range; | 
 | } | 
 |  | 
 | #if !CONFIG_COEFF_HR_ADAPTIVE | 
 | static const int exp_golomb0_bits_cost[32] = { | 
 |   0,       512,     512 * 3, 512 * 3, 512 * 5, 512 * 5, 512 * 5, 512 * 5, | 
 |   512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, 512 * 7, | 
 |   512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, | 
 |   512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9, 512 * 9 | 
 | }; | 
 | static const int exp_golomb0_cost_diff[32] = { | 
 |   0,       512, 512 * 2, 0, 512 * 2, 0, 0, 0, 512 * 2, 0, 0, 0, 0, 0, 0, 0, | 
 |   512 * 2, 0,   0,       0, 0,       0, 0, 0, 0,       0, 0, 0, 0, 0, 0, 0 | 
 | }; | 
 |  | 
 | static AOM_FORCE_INLINE int get_br_cost(tran_low_t level, | 
 |                                         const int *coeff_lps) { | 
 |   const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level >= 1 + NUM_BASE_LEVELS + COEFF_BASE_RANGE) { | 
 |     const int r = level - COEFF_BASE_RANGE - NUM_BASE_LEVELS - 1; | 
 |     cost += av1_cost_literal(get_exp_golomb_length(r, 0)); | 
 |   } | 
 |  | 
 |   return cost; | 
 | } | 
 | #endif | 
 |  | 
 | #if !CONFIG_COEFF_HR_ADAPTIVE | 
 | // Base range cost of coding level values in the | 
 | // low-frequency region, includes the bypass cost. | 
 | static AOM_FORCE_INLINE int get_br_lf_cost(tran_low_t level, | 
 |                                            const int *coeff_lps) { | 
 |   const int base_range = | 
 |       AOMMIN(level - 1 - LF_NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level >= 1 + LF_NUM_BASE_LEVELS + COEFF_BASE_RANGE) { | 
 |     const int r = level - COEFF_BASE_RANGE - LF_NUM_BASE_LEVELS - 1; | 
 |     cost += av1_cost_literal(get_exp_golomb_length(r, 0)); | 
 |   } | 
 |  | 
 |   return cost; | 
 | } | 
 |  | 
 | static INLINE int get_br_cost_with_diff(tran_low_t level, const int *coeff_lps, | 
 |                                         int *diff) { | 
 |   const int base_range = AOMMIN(level - 1 - NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level <= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) | 
 |     *diff += coeff_lps[base_range + COEFF_BASE_RANGE + 1]; | 
 |  | 
 |   if (level >= COEFF_BASE_RANGE + 1 + NUM_BASE_LEVELS) { | 
 |     int r = level - COEFF_BASE_RANGE - NUM_BASE_LEVELS; | 
 |     if (r < 32) { | 
 |       cost += exp_golomb0_bits_cost[r]; | 
 |       *diff += exp_golomb0_cost_diff[r]; | 
 |     } else { | 
 |       cost += av1_cost_literal(get_exp_golomb_length(r - 1, 0)); | 
 |       *diff += (r & (r - 1)) == 0 ? 1024 : 0; | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | // Calculates differential cost for base range coding in the low-frequency | 
 | // region for encoder coefficient level optimization. | 
 | static AOM_FORCE_INLINE int get_br_lf_cost_with_diff(tran_low_t level, | 
 |                                                      const int *coeff_lps, | 
 |                                                      int *diff) { | 
 |   const int base_range = | 
 |       AOMMIN(level - 1 - LF_NUM_BASE_LEVELS, COEFF_BASE_RANGE); | 
 |   int cost = coeff_lps[base_range]; | 
 |  | 
 |   if (level <= COEFF_BASE_RANGE + 1 + LF_NUM_BASE_LEVELS) | 
 |     *diff += coeff_lps[base_range + COEFF_BASE_RANGE + 1]; | 
 |  | 
 |   if (level >= COEFF_BASE_RANGE + 1 + LF_NUM_BASE_LEVELS) { | 
 |     int r = level - COEFF_BASE_RANGE - LF_NUM_BASE_LEVELS; | 
 |     if (r < 32) { | 
 |       cost += exp_golomb0_bits_cost[r]; | 
 |       *diff += exp_golomb0_cost_diff[r]; | 
 |     } else { | 
 |       cost += av1_cost_literal(get_exp_golomb_length(r - 1, 0)); | 
 |       *diff += (r & (r - 1)) == 0 ? 1024 : 0; | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 | static INLINE int get_nz_map_ctx_chroma(const uint8_t *const levels, | 
 |                                         const int coeff_idx, const int bwl, | 
 |                                         const int height, const int scan_idx, | 
 |                                         const int is_eob, | 
 |                                         const TX_CLASS tx_class, | 
 |                                         const int plane) { | 
 |   if (is_eob) { | 
 |     return get_lower_levels_ctx_eob(bwl, height, scan_idx); | 
 |   } | 
 |   int stats = 0; | 
 |   const int row = coeff_idx >> bwl; | 
 |   const int col = coeff_idx - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   if (limits) { | 
 |     stats = get_nz_mag_lf_chroma(levels + get_padded_idx(coeff_idx, bwl), bwl, | 
 |                                  tx_class); | 
 |     return get_nz_map_ctx_from_stats_lf_chroma(stats, tx_class, plane); | 
 |   } else { | 
 |     stats = get_nz_mag_chroma(levels + get_padded_idx(coeff_idx, bwl), bwl, | 
 |                               tx_class); | 
 |     return get_nz_map_ctx_from_stats_chroma(stats, coeff_idx, tx_class, plane); | 
 |   } | 
 | } | 
 |  | 
 | static INLINE int get_nz_map_ctx(const uint8_t *const levels, | 
 |                                  const int coeff_idx, const int bwl, | 
 |                                  const int height, const int scan_idx, | 
 |                                  const int is_eob, const TX_CLASS tx_class, | 
 |                                  const int plane) { | 
 |   if (is_eob) { | 
 |     if (scan_idx == 0) return 0; | 
 |     if (scan_idx <= (height << bwl) / 8) return 1; | 
 |     if (scan_idx <= (height << bwl) / 4) return 2; | 
 |     return 3; | 
 |   } | 
 |   int stats = 0; | 
 |   const int row = coeff_idx >> bwl; | 
 |   const int col = coeff_idx - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   if (limits) { | 
 |     stats = | 
 |         get_nz_mag_lf(levels + get_padded_idx(coeff_idx, bwl), bwl, tx_class); | 
 |     return get_nz_map_ctx_from_stats_lf(stats, coeff_idx, bwl, tx_class); | 
 |   } else { | 
 |     stats = get_nz_mag(levels + get_padded_idx(coeff_idx, bwl), bwl, tx_class); | 
 |     return get_nz_map_ctx_from_stats(stats, coeff_idx, bwl, tx_class, plane); | 
 |   } | 
 | } | 
 |  | 
 | static INLINE int get_nz_map_ctx_skip(const uint8_t *const levels, | 
 |                                       const int height, const int scan_idx, | 
 |                                       const int is_bob, const int coeff_idx, | 
 |                                       const int bwl) { | 
 |   if (is_bob) { | 
 |     return get_lower_levels_ctx_bob(bwl, height, scan_idx); | 
 |   } | 
 |   return get_nz_mag_skip(levels + get_padded_idx_left(coeff_idx, bwl), bwl); | 
 | } | 
 |  | 
 | void av1_txb_init_levels_signs_c(const tran_low_t *const coeff, const int width, | 
 |                                  const int height, uint8_t *const levels, | 
 |                                  int8_t *const signs) { | 
 |   const int stride = width + TX_PAD_LEFT; | 
 |   int8_t *si = signs; | 
 |   uint8_t *ls = levels; | 
 |   // bottom 4 pad | 
 |   memset(levels + stride * (height + TX_PAD_TOP), 0, | 
 |          sizeof(*levels) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); | 
 |   memset(signs + stride * (height + TX_PAD_TOP), 0, | 
 |          sizeof(*signs) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); | 
 |   // top 4 pad | 
 |   memset(levels, 0, sizeof(*levels) * (TX_PAD_TOP * stride)); | 
 |   ls += TX_PAD_TOP * stride; | 
 |   memset(signs, 0, sizeof(*signs) * (TX_PAD_TOP * stride)); | 
 |   si += TX_PAD_TOP * stride; | 
 |   for (int i = 0; i < height; i++) { | 
 |     // left 4 pad | 
 |     for (int j = 0; j < TX_PAD_LEFT; j++) { | 
 |       *ls++ = 0; | 
 |       *si++ = 0; | 
 |     } | 
 |     for (int j = 0; j < width; j++) { | 
 |       *si++ = (int8_t)(coeff[i * width + j] > 0) ? 1 : -1; | 
 |       *ls++ = (uint8_t)clamp(abs(coeff[i * width + j]), 0, INT8_MAX); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | void av1_txb_init_levels_skip_c(const tran_low_t *const coeff, const int width, | 
 |                                 const int height, uint8_t *const levels) { | 
 |   const int stride = width + TX_PAD_LEFT; | 
 |   uint8_t *ls = levels; | 
 |   // bottom 4 padded region | 
 |   memset(levels + stride * (height + TX_PAD_TOP), 0, | 
 |          sizeof(*levels) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); | 
 |   // top 4 padded region | 
 |   memset(levels, 0, sizeof(*levels) * (TX_PAD_TOP * stride)); | 
 |   ls += TX_PAD_TOP * stride; | 
 |   for (int i = 0; i < height; i++) { | 
 |     // left 4 padded region for each row | 
 |     for (int j = 0; j < TX_PAD_LEFT; j++) { | 
 |       *ls++ = 0; | 
 |     } | 
 |     for (int j = 0; j < width; j++) { | 
 |       *ls++ = (uint8_t)clamp(abs(coeff[i * width + j]), 0, INT8_MAX); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | void av1_txb_init_levels_c(const tran_low_t *const coeff, const int width, | 
 |                            const int height, uint8_t *const levels) { | 
 |   const int stride = width + TX_PAD_HOR; | 
 |   uint8_t *ls = levels; | 
 |  | 
 |   memset(levels + stride * height, 0, | 
 |          sizeof(*levels) * (TX_PAD_BOTTOM * stride + TX_PAD_END)); | 
 |  | 
 |   for (int i = 0; i < height; i++) { | 
 |     for (int j = 0; j < width; j++) { | 
 |       *ls++ = (uint8_t)clamp(abs(coeff[i * width + j]), 0, INT8_MAX); | 
 |     } | 
 |     for (int j = 0; j < TX_PAD_HOR; j++) { | 
 |       *ls++ = 0; | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | void av1_get_nz_map_contexts_c(const uint8_t *const levels, | 
 |                                const int16_t *const scan, const uint16_t eob, | 
 |                                const TX_SIZE tx_size, const TX_CLASS tx_class, | 
 |                                int8_t *const coeff_contexts, const int plane) { | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   for (int i = 0; i < eob; ++i) { | 
 |     const int pos = scan[i]; | 
 |     if (plane > 0) { | 
 |       coeff_contexts[pos] = get_nz_map_ctx_chroma( | 
 |           levels, pos, bwl, height, i, i == eob - 1, tx_class, plane); | 
 |     } else { | 
 |       coeff_contexts[pos] = get_nz_map_ctx(levels, pos, bwl, height, i, | 
 |                                            i == eob - 1, tx_class, plane); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | // Encodes the EOB syntax in the bitstream. | 
 | static INLINE void code_eob(MACROBLOCK *const x, aom_writer *w, int plane, | 
 |                             TX_SIZE tx_size, int eob) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 | #if CONFIG_EOB_POS_LUMA | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 |   const int pl_ctx = get_eob_plane_ctx(plane, is_inter); | 
 | #else | 
 |   const int pl_ctx = plane_type; | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |  | 
 |   // test | 
 |   int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   int eob_extra; | 
 |   const int eob_pt = get_eob_pos_token(eob, &eob_extra); | 
 |   switch (eob_multi_size) { | 
 |     case 0: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf16[pl_ctx], | 
 |                        EOB_MAX_SYMS - 6); | 
 |       break; | 
 |     case 1: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf32[pl_ctx], | 
 |                        EOB_MAX_SYMS - 5); | 
 |       break; | 
 |     case 2: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf64[pl_ctx], | 
 |                        EOB_MAX_SYMS - 4); | 
 |       break; | 
 |     case 3: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf128[pl_ctx], | 
 |                        EOB_MAX_SYMS - 3); | 
 |       break; | 
 |     case 4: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf256[pl_ctx], | 
 |                        EOB_MAX_SYMS - 2); | 
 |       break; | 
 |     case 5: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf512[pl_ctx], | 
 |                        EOB_MAX_SYMS - 1); | 
 |       break; | 
 |     default: | 
 |       aom_write_symbol(w, eob_pt - 1, ec_ctx->eob_flag_cdf1024[pl_ctx], | 
 |                        EOB_MAX_SYMS); | 
 |       break; | 
 |   } | 
 |   const int eob_offset_bits = av1_eob_offset_bits[eob_pt]; | 
 |   if (eob_offset_bits > 0) { | 
 |     const int eob_ctx = eob_pt - 3; | 
 |     int eob_shift = eob_offset_bits - 1; | 
 |     int bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; | 
 |     aom_write_symbol(w, bit, | 
 |                      ec_ctx->eob_extra_cdf[txs_ctx][plane_type][eob_ctx], 2); | 
 | #if CONFIG_BYPASS_IMPROVEMENT | 
 |     // Zero out top bit; write (eob_offset_bits - 1) lsb bits. | 
 |     eob_extra &= (1 << (eob_offset_bits - 1)) - 1; | 
 |     aom_write_literal(w, eob_extra, eob_offset_bits - 1); | 
 | #else | 
 |     for (int i = 1; i < eob_offset_bits; i++) { | 
 |       eob_shift = eob_offset_bits - 1 - i; | 
 |       bit = (eob_extra & (1 << eob_shift)) ? 1 : 0; | 
 |       aom_write_bit(w, bit); | 
 |     } | 
 | #endif | 
 |   } | 
 | } | 
 |  | 
 | void av1_get_nz_map_contexts_skip_c(const uint8_t *const levels, | 
 |                                     const int16_t *const scan, | 
 |                                     const uint16_t bob, const uint16_t eob, | 
 |                                     const TX_SIZE tx_size, | 
 |                                     int8_t *const coeff_contexts) { | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   for (int i = bob; i < eob; ++i) { | 
 |     const int pos = scan[i]; | 
 |     coeff_contexts[pos] = | 
 |         get_nz_map_ctx_skip(levels, height, i, bob == i, pos, bwl); | 
 |   } | 
 | } | 
 |  | 
 | int av1_write_sig_txtype(const AV1_COMMON *const cm, MACROBLOCK *const x, | 
 |                          aom_writer *w, int blk_row, int blk_col, int plane, | 
 |                          int block, TX_SIZE tx_size) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 |   const int txb_offset = | 
 |       x->mbmi_ext_frame->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); | 
 |  | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   if (plane == AOM_PLANE_U) | 
 |     memset(xd->tmp_sign, 0, width * height * sizeof(int32_t)); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   const uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; | 
 |   const uint16_t eob = eob_txb[block]; | 
 |   const uint16_t *bob_txb = cb_coef_buff->bobs[plane] + txb_offset; | 
 |   const uint16_t bob_code = bob_txb[block]; | 
 |   const uint8_t *entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; | 
 |  | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   int txb_skip_ctx = (entropy_ctx[block] & TXB_SKIP_CTX_MASK); | 
 |   if (plane == AOM_PLANE_V) { | 
 |     txb_skip_ctx += (xd->eob_u_flag ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |   } | 
 | #else | 
 |   const int txb_skip_ctx = entropy_ctx[block] & TXB_SKIP_CTX_MASK; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 |  | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_TYPE tx_type = | 
 |       av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, | 
 |                       is_reduced_tx_set_used(cm, plane_type)); | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(cm, plane, tx_type, is_inter); | 
 |  | 
 | #if CCTX_C2_DROPPED | 
 |   if (plane == AOM_PLANE_V && is_cctx_allowed(cm, xd)) { | 
 |     CctxType cctx_type = av1_get_cctx_type(xd, blk_row, blk_col); | 
 |     if (!keep_chroma_c2(cctx_type)) return 0; | 
 |   } | 
 | #endif  // CCTX_C2_DROPPED | 
 |  | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   if (plane == AOM_PLANE_U) { | 
 |     xd->eob_u_flag = eob ? 1 : 0; | 
 |   } | 
 |   if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     const int pred_mode_ctx = | 
 |         (is_inter || xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |     aom_write_symbol(w, eob == 0, | 
 |                      ec_ctx->txb_skip_cdf[pred_mode_ctx][txs_ctx][txb_skip_ctx], | 
 |                      2); | 
 | #else | 
 |     aom_write_symbol(w, eob == 0, ec_ctx->txb_skip_cdf[txs_ctx][txb_skip_ctx], | 
 |                      2); | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   } else { | 
 |     aom_write_symbol(w, eob == 0, ec_ctx->v_txb_skip_cdf[txb_skip_ctx], 2); | 
 |   } | 
 | #else | 
 |   aom_write_symbol(w, eob == 0, ec_ctx->txb_skip_cdf[txs_ctx][txb_skip_ctx], 2); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   if (eob == 0) return 0; | 
 |   int esc_eob = is_fsc ? bob_code : eob; | 
 |   const int dc_skip = (eob == 1) && !is_inter; | 
 |   code_eob(x, w, plane, tx_size, esc_eob); | 
 |   av1_write_tx_type(cm, xd, tx_type, tx_size, w, plane, esc_eob, dc_skip); | 
 |   if (plane == AOM_PLANE_U && is_cctx_allowed(cm, xd)) { | 
 |     const int skip_cctx = is_inter ? 0 : (eob == 1); | 
 |     CctxType cctx_type = av1_get_cctx_type(xd, blk_row, blk_col); | 
 |     if (eob > 0 && !skip_cctx) | 
 |       av1_write_cctx_type(cm, xd, cctx_type, tx_size, w); | 
 |   } | 
 |   return 1; | 
 | } | 
 |  | 
 | static void write_low_range(aom_writer *w, aom_cdf_prob *cdf, int level, int lf, | 
 |                             int enable_tcq) { | 
 |   if (enable_tcq) { | 
 |     int br = get_low_range(level, lf); | 
 |     for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |       const int k = AOMMIN(br, BR_CDF_SIZE - 1); | 
 |       br -= k; | 
 |       aom_write_symbol(w, k, cdf, BR_CDF_SIZE); | 
 |       if (k < BR_CDF_SIZE - 1) break; | 
 |     } | 
 |   } else { | 
 |     const int base_range = | 
 |         level - 1 - (lf ? LF_NUM_BASE_LEVELS : NUM_BASE_LEVELS); | 
 |     for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |       const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |       aom_write_symbol(w, k, cdf, BR_CDF_SIZE); | 
 |       if (k < BR_CDF_SIZE - 1) break; | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | void av1_write_coeffs_txb_skip(const AV1_COMMON *const cm, MACROBLOCK *const x, | 
 |                                aom_writer *w, int blk_row, int blk_col, | 
 |                                int plane, int block, TX_SIZE tx_size) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 |   const uint16_t eob = av1_get_max_eob(tx_size); | 
 |   FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_TYPE tx_type = | 
 |       av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, | 
 |                       is_reduced_tx_set_used(cm, plane_type)); | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   int8_t signs_buf[TX_PAD_2D]; | 
 |   const tran_low_t *tcoeff_txb = | 
 |       cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane]; | 
 |   const tran_low_t *tcoeff = tcoeff_txb + BLOCK_OFFSET(block); | 
 |   av1_txb_init_levels_signs(tcoeff, width, height, levels_buf, signs_buf); | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 |   int8_t *const signs = set_signs(signs_buf, width); | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *const scan = scan_order->scan; | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   const int size_ctx = AOMMIN(txs_ctx, TX_16X16); | 
 |  | 
 |   DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |   const int txb_offset = | 
 |       x->mbmi_ext_frame->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); | 
 |   const uint16_t *bob_txb = cb_coef_buff->bobs[plane] + txb_offset; | 
 |   const int bob_code = bob_txb[block]; | 
 |   int bob = av1_get_max_eob(tx_size) - bob_code; | 
 |   av1_get_nz_map_contexts_skip_c(levels, scan, bob, eob, tx_size, | 
 |                                  coeff_contexts); | 
 |   for (int c = bob; c < eob; ++c) { | 
 |     const int pos = scan[c]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const tran_low_t v = tcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 |     if (c == bob) { | 
 |       aom_write_symbol(w, AOMMIN(level, 3) - 1, | 
 |                        ec_ctx->coeff_base_bob_cdf[size_ctx][coeff_ctx], 3); | 
 |     } else { | 
 |       aom_write_symbol(w, AOMMIN(level, 3), | 
 |                        ec_ctx->coeff_base_cdf_idtx[size_ctx][coeff_ctx], 4); | 
 |     } | 
 |     if (level > NUM_BASE_LEVELS) { | 
 |       // level is above 1. | 
 |       const int br_ctx = get_br_ctx_skip(levels, pos, bwl); | 
 |       aom_cdf_prob *cdf = ec_ctx->coeff_br_cdf_idtx[size_ctx][br_ctx]; | 
 |       write_low_range(w, cdf, level, 0, 0); | 
 |     } | 
 |   } | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   // Loop to code all signs, bypass levels in the transform block | 
 |   for (int c = 0; c < eob; c++) { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = tcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 |     const int sign = (v < 0) ? 1 : 0; | 
 |     if (level) { | 
 |       int idtx_sign_ctx = get_sign_ctx_skip(signs, levels, pos, bwl); | 
 |       aom_write_symbol(w, sign, ec_ctx->idtx_sign_cdf[size_ctx][idtx_sign_ctx], | 
 |                        2); | 
 |       if (level > COEFF_BASE_RANGE + NUM_BASE_LEVELS) { | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |         int hr_level = level - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS; | 
 |         write_adaptive_hr(w, hr_level, hr_level_avg); | 
 |         hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |         write_exp_golomb(w, level - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS, 0); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       } | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | static INLINE void write_coeff_hidden(aom_writer *w, TX_CLASS tx_class, | 
 |                                       const int16_t *scan, int bwl, | 
 |                                       uint8_t *levels, const int level, | 
 |                                       base_ph_cdf_arr base_cdf_ph, | 
 |                                       br_cdf_arr br_cdf_ph) { | 
 |   const int q_index = (level >> 1); | 
 |   const int pos = scan[0]; | 
 |  | 
 |   int ctx_id = get_base_ctx_ph(levels, pos, bwl, tx_class); | 
 |   aom_write_symbol(w, AOMMIN(q_index, 3), base_cdf_ph[ctx_id], 4); | 
 |  | 
 |   if (q_index > NUM_BASE_LEVELS) { | 
 |     ctx_id = get_par_br_ctx(levels, pos, bwl, tx_class); | 
 |     aom_cdf_prob *cdf_br = br_cdf_ph[ctx_id]; | 
 |     const int base_range = q_index - 1 - NUM_BASE_LEVELS; | 
 |     for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |       const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |       aom_write_symbol(w, k, cdf_br, BR_CDF_SIZE); | 
 |       if (k < BR_CDF_SIZE - 1) break; | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | static void write_high_range(aom_writer *w, int enable_tcq, int level, int lf | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                              , | 
 |                              int *hr_avg | 
 | #endif | 
 | ) { | 
 |   int max = lf ? COEFF_BASE_RANGE + LF_NUM_BASE_LEVELS | 
 |                : COEFF_BASE_RANGE + NUM_BASE_LEVELS; | 
 |   max -= enable_tcq ? 1 : 0; | 
 |   if (level > max) { | 
 |     int hr = 0; | 
 |     if (enable_tcq) { | 
 |       hr = get_high_range(level, lf); | 
 |     } else { | 
 |       hr = level - max - 1; | 
 |     } | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int hr_level_avg = *hr_avg; | 
 |     write_adaptive_hr(w, hr, hr_level_avg); | 
 |     *hr_avg = (hr_level_avg + hr) >> 1; | 
 | #else | 
 |     write_exp_golomb(w, hr, 0); | 
 | #endif | 
 |   } | 
 | } | 
 |  | 
 | void av1_write_coeffs_txb(const AV1_COMMON *const cm, MACROBLOCK *const x, | 
 |                           aom_writer *w, int blk_row, int blk_col, int plane, | 
 |                           int block, TX_SIZE tx_size) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   if (plane == AOM_PLANE_U) | 
 |     memset(xd->tmp_sign, 0, width * height * sizeof(int32_t)); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |   const int txb_offset = | 
 |       x->mbmi_ext_frame->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); | 
 |   const uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; | 
 |   const uint16_t eob = eob_txb[block]; | 
 |   const uint8_t *entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 |   if ( | 
 | #if !CONFIG_ENABLE_INLOOP_FILTER_GIBC | 
 |       !is_global_intrabc_allowed(cm) && | 
 | #endif  // CONFIG_ENABLE_INLOOP_FILTER_GIBC | 
 |       !cm->features.coded_lossless) { | 
 |     // Assert only when LR is enabled. | 
 |     assert((eob == 0) == av1_get_txk_skip(cm, xd->mi_row, xd->mi_col, plane, | 
 |                                           blk_row, blk_col)); | 
 |   } | 
 |   if (eob == 0) return; | 
 |  | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_TYPE tx_type = | 
 |       av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, | 
 |                       is_reduced_tx_set_used(cm, plane_type)); | 
 |  | 
 | #if DEBUG_EXTQUANT | 
 |   fprintf(cm->fEncCoeffLog, "\nblk_row=%d,blk_col=%d,plane=%d,tx_size=%d", | 
 |           blk_row, blk_col, plane, tx_size); | 
 | #endif | 
 |  | 
 |   const TX_CLASS tx_class = tx_type_to_class[get_primary_tx_type(tx_type)]; | 
 | #if CONFIG_TCQ | 
 |   const int tcq_mode = tcq_enable(cm->features.tcq_mode, plane, tx_class); | 
 | #else | 
 |   const int tcq_mode = 0; | 
 | #endif  // CONFIG_TCQ | 
 |  | 
 |   // write sec_tx_type here | 
 |   // Only y plane's sec_tx_type is transmitted | 
 |   if ((plane == AOM_PLANE_Y) && | 
 |       (is_inter_block(xd->mi[0], xd->tree_type) | 
 |            ? (eob > 3 && cm->seq_params.enable_inter_ist) | 
 |            : (eob != 1 && cm->seq_params.enable_ist))) { | 
 |     av1_write_sec_tx_type(cm, xd, tx_type, tx_size, eob, w); | 
 |   } | 
 |  | 
 | #if DEBUG_EXTQUANT | 
 |   fprintf(cm->fEncCoeffLog, "tx_type=%d, eob=%d\n", tx_type, eob); | 
 | #endif | 
 |  | 
 | #if !CONFIG_CONTEXT_DERIVATION | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 |   const tran_low_t *tcoeff_txb = | 
 |       cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane]; | 
 |   const tran_low_t *tcoeff = tcoeff_txb + BLOCK_OFFSET(block); | 
 |   av1_txb_init_levels(tcoeff, width, height, levels); | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *const scan = scan_order->scan; | 
 |   DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |   av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts, | 
 |                           plane); | 
 |  | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |  | 
 |   bool enable_parity_hiding = | 
 |       cm->features.allow_parity_hiding && | 
 |       !xd->lossless[xd->mi[0]->segment_id] && plane == PLANE_TYPE_Y && | 
 |       ph_allowed_tx_types[get_primary_tx_type(tx_type)] && (eob > PHTHRESH); | 
 |  | 
 | #if CONFIG_TCQ | 
 |   int state = tcq_init_state(tcq_mode); | 
 | #endif  // CONFIG_TCQ | 
 |   // Loop to code AC coefficient magnitudes | 
 |   for (int c = eob - 1; c > 0; --c) { | 
 |     const int pos = scan[c]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const tran_low_t v = tcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 | #if CONFIG_TCQ | 
 |     int q_i = tcq_quant(state); | 
 | #endif  // CONFIG_TCQ | 
 |  | 
 |     if (c == eob - 1) { | 
 |       const int row = pos >> bwl; | 
 |       const int col = pos - (row << bwl); | 
 |       int limits = get_lf_limits(row, col, tx_class, plane); | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                            ec_ctx->coeff_base_lf_eob_uv_cdf[coeff_ctx], | 
 |                            LF_BASE_SYMBOLS - 1); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3) - 1, | 
 |                            ec_ctx->coeff_base_eob_uv_cdf[coeff_ctx], 3); | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                            ec_ctx->coeff_base_lf_eob_cdf[txs_ctx][coeff_ctx], | 
 |                            LF_BASE_SYMBOLS - 1); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3) - 1, | 
 |                            ec_ctx->coeff_base_eob_cdf[txs_ctx][coeff_ctx], 3); | 
 |         } | 
 |       } | 
 |     } else { | 
 |       const int row = pos >> bwl; | 
 |       const int col = pos - (row << bwl); | 
 |       int limits = get_lf_limits(row, col, tx_class, plane); | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1), | 
 |                            ec_ctx->coeff_base_lf_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                        [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            LF_BASE_SYMBOLS); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3), | 
 |                            ec_ctx->coeff_base_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                     [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            4); | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1), | 
 |                            ec_ctx->coeff_base_lf_cdf[txs_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                     [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            LF_BASE_SYMBOLS); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3), | 
 |                            ec_ctx->coeff_base_cdf[txs_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                  [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            4); | 
 |         } | 
 |       } | 
 |     } | 
 |  | 
 |     const int row = pos >> bwl; | 
 |     const int col = pos - (row << bwl); | 
 |     int limits = get_lf_limits(row, col, tx_class, plane); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         if (level > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_lf_uv_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 1, tcq_mode); | 
 |         } | 
 |       } else { | 
 |         if (level > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_uv_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 0, tcq_mode); | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         if (level > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_lf_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 1, tcq_mode); | 
 |         } | 
 |       } else { | 
 |         if (level > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 0, tcq_mode); | 
 |         } | 
 |       } | 
 |     } | 
 | #if CONFIG_TCQ | 
 |     state = tcq_next_state(state, level); | 
 | #endif  // CONFIG_TCQ | 
 |   } | 
 |  | 
 |   // Code DC coefficient magnitude | 
 |   int num_nz = 0; | 
 |   bool is_hidden = false; | 
 |   if (enable_parity_hiding) { | 
 |     for (int c = eob - 1; c > 0; --c) { | 
 |       const int pos = scan[c]; | 
 |       num_nz += !!tcoeff[pos]; | 
 |     } | 
 |     is_hidden = num_nz >= PHTHRESH; | 
 |   } | 
 |   if (is_hidden) { | 
 |     const int pos = scan[0]; | 
 |     const tran_low_t v = tcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 |     write_coeff_hidden(w, tx_class, scan, bwl, levels, level, | 
 |                        ec_ctx->coeff_base_ph_cdf, ec_ctx->coeff_br_ph_cdf); | 
 |   } else { | 
 |     const int c = 0; | 
 |     const int pos = scan[c]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const tran_low_t v = tcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 | #if CONFIG_TCQ | 
 |     int q_i = tcq_quant(state); | 
 | #elif CONFIG_TCQ | 
 |     int q_i = 0; | 
 | #endif  // CONFIG_TCQ | 
 |  | 
 |     if (plane > 0) { | 
 |       if (c == eob - 1) { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                            ec_ctx->coeff_base_lf_eob_uv_cdf[coeff_ctx], | 
 |                            LF_BASE_SYMBOLS - 1); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3) - 1, | 
 |                            ec_ctx->coeff_base_eob_uv_cdf[coeff_ctx], 3); | 
 |         } | 
 |       } else { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1), | 
 |                            ec_ctx->coeff_base_lf_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                        [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            LF_BASE_SYMBOLS); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3), | 
 |                            ec_ctx->coeff_base_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                     [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            4); | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (c == eob - 1) { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                            ec_ctx->coeff_base_lf_eob_cdf[txs_ctx][coeff_ctx], | 
 |                            LF_BASE_SYMBOLS - 1); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3) - 1, | 
 |                            ec_ctx->coeff_base_eob_cdf[txs_ctx][coeff_ctx], 3); | 
 |         } | 
 |       } else { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (limits) { | 
 |           aom_write_symbol(w, AOMMIN(level, LF_BASE_SYMBOLS - 1), | 
 |                            ec_ctx->coeff_base_lf_cdf[txs_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                     [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            LF_BASE_SYMBOLS); | 
 |         } else { | 
 |           aom_write_symbol(w, AOMMIN(level, 3), | 
 |                            ec_ctx->coeff_base_cdf[txs_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                  [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                            , | 
 |                            4); | 
 |         } | 
 |       } | 
 |     } | 
 |  | 
 |     const int row = pos >> bwl; | 
 |     const int col = pos - (row << bwl); | 
 |     int limits = get_lf_limits(row, col, tx_class, plane); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         if (level > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_lf_uv_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 1, tcq_mode); | 
 |         } | 
 |       } else { | 
 |         if (level > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_uv_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 0, tcq_mode); | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         if (level > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_lf_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 1, tcq_mode); | 
 |         } | 
 |       } else { | 
 |         if (level > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 |           aom_cdf_prob *cdf = ec_ctx->coeff_br_cdf[br_ctx]; | 
 |           write_low_range(w, cdf, level, 0, tcq_mode); | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |  | 
 | #if DEBUG_EXTQUANT | 
 |   for (int c = 0; c < eob; ++c) { | 
 |     const tran_low_t v = tcoeff[scan[c]]; | 
 |     const tran_low_t level = abs(v); | 
 |     fprintf(cm->fEncCoeffLog, "c=%d,pos=%d,level=%d,dq_coeff=%d\n", c, scan[c], | 
 |             level, v); | 
 |   } | 
 | #endif | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   // Loop to code all signs in the transform block, | 
 |   // starting with the sign of DC (if applicable) | 
 |   for (int c = eob - 1; c >= 0; --c) { | 
 |     const tran_low_t v = tcoeff[scan[c]]; | 
 |     const tran_low_t level = abs(v); | 
 |     const int sign = (v < 0) ? 1 : 0; | 
 |     if (level) { | 
 |       const int pos = scan[c]; | 
 |       const int row = pos >> bwl; | 
 |       const int col = pos - (row << bwl); | 
 |       const bool dc_2dtx = (c == 0); | 
 |       const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |       const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |       if (dc_2dtx || dc_hor || dc_ver) { | 
 |         const int dc_sign_ctx = | 
 |             dc_2dtx | 
 |                 ? (entropy_ctx[block] >> DC_SIGN_CTX_SHIFT) & DC_SIGN_CTX_MASK | 
 |                 : 0; | 
 |         const int tmp_sign_idx = pos; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |         if (plane == AOM_PLANE_U) xd->tmp_sign[tmp_sign_idx] = (sign ? 2 : 1); | 
 |         if (plane == AOM_PLANE_V) { | 
 |           aom_write_symbol( | 
 |               w, sign, | 
 |               ec_ctx->v_dc_sign_cdf[xd->tmp_sign[tmp_sign_idx]][dc_sign_ctx], | 
 |               2); | 
 |         } else { | 
 |           aom_write_symbol( | 
 |               w, sign, | 
 |               ec_ctx->dc_sign_cdf[plane_type][is_hidden ? 1 : 0][dc_sign_ctx], | 
 |               2); | 
 |         } | 
 | #else | 
 |         aom_write_symbol(w, sign, ec_ctx->dc_sign_cdf[plane_type][dc_sign_ctx], | 
 |                          2); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |       } else { | 
 | #if CONFIG_CONTEXT_DERIVATION && !CONFIG_CTX_V_AC_SIGN | 
 |         if (plane == AOM_PLANE_U) xd->tmp_sign[scan[c]] = (sign ? 2 : 1); | 
 |         if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) | 
 |           aom_write_bit(w, sign); | 
 |         else | 
 |           aom_write_symbol(w, sign, | 
 |                            ec_ctx->v_ac_sign_cdf[xd->tmp_sign[scan[c]]], 2); | 
 | #else | 
 |         aom_write_bit(w, sign); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION && !CONFIG_CTX_V_AC_SIGN | 
 |       } | 
 |       if (is_hidden && c == 0) { | 
 |         int q_index = level >> 1; | 
 |         if (q_index > COEFF_BASE_RANGE + NUM_BASE_LEVELS) { | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           int hr_level = q_index - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS; | 
 |           write_adaptive_hr(w, hr_level, hr_level_avg >> 1); | 
 |           hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |           write_exp_golomb(w, q_index - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS, | 
 |                            0); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } else { | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 | #if 0 /* fix write_high_range() */ | 
 |         if (limits) { | 
 |           if (level > COEFF_BASE_RANGE + LF_NUM_BASE_LEVELS) { | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_level = level - COEFF_BASE_RANGE - 1 - LF_NUM_BASE_LEVELS; | 
 |             write_adaptive_hr(w, hr_level, hr_level_avg); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             write_exp_golomb( | 
 |                 w, level - COEFF_BASE_RANGE - 1 - LF_NUM_BASE_LEVELS, 0); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > COEFF_BASE_RANGE + NUM_BASE_LEVELS) { | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_level = level - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS; | 
 |             write_adaptive_hr(w, hr_level, hr_level_avg); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             write_exp_golomb(w, level - COEFF_BASE_RANGE - 1 - NUM_BASE_LEVELS, | 
 |                              0); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 | #else | 
 |         write_high_range(w, tcq_mode, level, limits | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                          , | 
 |                          &hr_level_avg | 
 | #endif | 
 |         ); | 
 | #endif | 
 |       } | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | typedef struct encode_txb_args { | 
 |   const AV1_COMMON *cm; | 
 |   MACROBLOCK *x; | 
 |   aom_writer *w; | 
 | } ENCODE_TXB_ARGS; | 
 |  | 
 | #if CONFIG_NEW_TX_PARTITION | 
 | void av1_write_intra_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x, | 
 |                                aom_writer *w, BLOCK_SIZE bsize) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const MB_MODE_INFO *const mbmi = xd->mi[0]; | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   int block[MAX_MB_PLANE] = { 0 }; | 
 |   int row, col; | 
 |   assert(bsize == get_plane_block_size(bsize, xd->plane[0].subsampling_x, | 
 |                                        xd->plane[0].subsampling_y)); | 
 |   const int max_blocks_wide = max_block_wide(xd, bsize, 0); | 
 |   const int max_blocks_high = max_block_high(xd, bsize, 0); | 
 |   const BLOCK_SIZE max_unit_bsize = BLOCK_64X64; | 
 |   int mu_blocks_wide = mi_size_wide[max_unit_bsize]; | 
 |   int mu_blocks_high = mi_size_high[max_unit_bsize]; | 
 |   mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide); | 
 |   mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high); | 
 |  | 
 |   for (row = 0; row < max_blocks_high; row += mu_blocks_high) { | 
 |     for (col = 0; col < max_blocks_wide; col += mu_blocks_wide) { | 
 |       const int plane_start = get_partition_plane_start(xd->tree_type); | 
 |       const int plane_end = | 
 |           get_partition_plane_end(xd->tree_type, av1_num_planes(cm)); | 
 |       for (int plane = plane_start; plane < plane_end; ++plane) { | 
 |         if (plane == AOM_PLANE_Y && !xd->lossless[mbmi->segment_id]) { | 
 |           const struct macroblockd_plane *const pd = &xd->plane[plane]; | 
 |           const int ss_x = pd->subsampling_x; | 
 |           const int ss_y = pd->subsampling_y; | 
 |           const BLOCK_SIZE plane_bsize = | 
 |               get_mb_plane_block_size(xd, mbmi, plane, ss_x, ss_y); | 
 |           const int plane_unit_height = | 
 |               get_plane_tx_unit_height(xd, plane_bsize, plane, row, ss_y); | 
 |           const int plane_unit_width = | 
 |               get_plane_tx_unit_width(xd, plane_bsize, plane, col, ss_x); | 
 |  | 
 |           const TX_SIZE max_tx_size = max_txsize_rect_lookup[plane_bsize]; | 
 |           TXB_POS_INFO txb_pos; | 
 |           TX_SIZE sub_txs[MAX_TX_PARTITIONS]; | 
 |           get_tx_partition_sizes(mbmi->tx_partition_type[0], max_tx_size, | 
 |                                  &txb_pos, sub_txs); | 
 |           for (int txb_idx = 0; txb_idx < txb_pos.n_partitions; ++txb_idx) { | 
 |             TX_SIZE tx_size = sub_txs[txb_idx]; | 
 |             const int stepr = tx_size_high_unit[tx_size]; | 
 |             const int stepc = tx_size_wide_unit[tx_size]; | 
 |             const int step = stepr * stepc; | 
 |             int blk_row = row + txb_pos.row_offset[txb_idx]; | 
 |             int blk_col = col + txb_pos.col_offset[txb_idx]; | 
 |             xd->mi[0]->txb_idx = txb_idx; | 
 |             if (blk_row >= plane_unit_height || blk_col >= plane_unit_width) | 
 |               continue; | 
 |  | 
 |             const int code_rest = av1_write_sig_txtype( | 
 |                 cm, x, w, blk_row, blk_col, plane, block[plane], tx_size); | 
 |             const TX_TYPE tx_type = av1_get_tx_type( | 
 |                 xd, get_plane_type(plane), blk_row, blk_col, tx_size, | 
 |                 is_reduced_tx_set_used(cm, get_plane_type(plane))); | 
 |             if (code_rest) { | 
 |               if ((mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                    get_primary_tx_type(tx_type) == IDTX && | 
 |                    plane == PLANE_TYPE_Y) || | 
 |                   use_inter_fsc(cm, plane, tx_type, is_inter)) { | 
 |                 av1_write_coeffs_txb_skip(cm, x, w, blk_row, blk_col, plane, | 
 |                                           block[plane], tx_size); | 
 |               } else { | 
 |                 av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, plane, | 
 |                                      block[plane], tx_size); | 
 |               } | 
 |             } | 
 |             block[plane] += step; | 
 |           } | 
 |         } else { | 
 |           if (plane && !xd->is_chroma_ref) break; | 
 |           if (plane == AOM_PLANE_U && is_cctx_allowed(cm, xd)) continue; | 
 |           const TX_SIZE tx_size = av1_get_tx_size(plane, xd); | 
 |           const int stepr = tx_size_high_unit[tx_size]; | 
 |           const int stepc = tx_size_wide_unit[tx_size]; | 
 |           const int step = stepr * stepc; | 
 |           const struct macroblockd_plane *const pd = &xd->plane[plane]; | 
 |           const int ss_x = pd->subsampling_x; | 
 |           const int ss_y = pd->subsampling_y; | 
 |           const BLOCK_SIZE plane_bsize = | 
 |               get_mb_plane_block_size(xd, mbmi, plane, ss_x, ss_y); | 
 |           const int plane_unit_height = | 
 |               get_plane_tx_unit_height(xd, plane_bsize, plane, row, ss_y); | 
 |           const int plane_unit_width = | 
 |               get_plane_tx_unit_width(xd, plane_bsize, plane, col, ss_x); | 
 |           for (int blk_row = row >> ss_y; blk_row < plane_unit_height; | 
 |                blk_row += stepr) { | 
 |             for (int blk_col = col >> ss_x; blk_col < plane_unit_width; | 
 |                  blk_col += stepc) { | 
 |               // Loop order for the two chroma planes is changed for CCTX | 
 |               // because the transform information for both planes are needed at | 
 |               // once at the decoder side. | 
 |               if (plane == AOM_PLANE_V && is_cctx_allowed(cm, xd)) { | 
 |                 const int code_rest = av1_write_sig_txtype( | 
 |                     cm, x, w, blk_row, blk_col, AOM_PLANE_U, block[AOM_PLANE_U], | 
 |                     tx_size); | 
 |                 if (code_rest) | 
 |                   av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, AOM_PLANE_U, | 
 |                                        block[AOM_PLANE_U], tx_size); | 
 |                 block[AOM_PLANE_U] += step; | 
 |               } | 
 |               const int code_rest = av1_write_sig_txtype( | 
 |                   cm, x, w, blk_row, blk_col, plane, block[plane], tx_size); | 
 |               const TX_TYPE tx_type = av1_get_tx_type( | 
 |                   xd, get_plane_type(plane), blk_row, blk_col, tx_size, | 
 |                   is_reduced_tx_set_used(cm, get_plane_type(plane))); | 
 |               if (code_rest) { | 
 |                 if ((mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                      get_primary_tx_type(tx_type) == IDTX && | 
 |                      plane == PLANE_TYPE_Y) || | 
 |                     use_inter_fsc(cm, plane, tx_type, is_inter)) { | 
 |                   av1_write_coeffs_txb_skip(cm, x, w, blk_row, blk_col, plane, | 
 |                                             block[plane], tx_size); | 
 |                 } else { | 
 |                   av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, plane, | 
 |                                        block[plane], tx_size); | 
 |                 } | 
 |               } | 
 |               block[plane] += step; | 
 |             } | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 | } | 
 | #else | 
 | void av1_write_intra_coeffs_mb(const AV1_COMMON *const cm, MACROBLOCK *x, | 
 |                                aom_writer *w, BLOCK_SIZE bsize) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const MB_MODE_INFO *const mbmi = xd->mi[0]; | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   int block[MAX_MB_PLANE] = { 0 }; | 
 |   int row, col; | 
 |   assert(bsize == get_plane_block_size(bsize, xd->plane[0].subsampling_x, | 
 |                                        xd->plane[0].subsampling_y)); | 
 |   const int max_blocks_wide = max_block_wide(xd, bsize, 0); | 
 |   const int max_blocks_high = max_block_high(xd, bsize, 0); | 
 |   const BLOCK_SIZE max_unit_bsize = BLOCK_64X64; | 
 |   int mu_blocks_wide = mi_size_wide[max_unit_bsize]; | 
 |   int mu_blocks_high = mi_size_high[max_unit_bsize]; | 
 |   mu_blocks_wide = AOMMIN(max_blocks_wide, mu_blocks_wide); | 
 |   mu_blocks_high = AOMMIN(max_blocks_high, mu_blocks_high); | 
 |  | 
 |   for (row = 0; row < max_blocks_high; row += mu_blocks_high) { | 
 |     for (col = 0; col < max_blocks_wide; col += mu_blocks_wide) { | 
 |       const int plane_start = get_partition_plane_start(xd->tree_type); | 
 |       const int plane_end = | 
 |           get_partition_plane_end(xd->tree_type, av1_num_planes(cm)); | 
 |       for (int plane = plane_start; plane < plane_end; ++plane) { | 
 |         if (plane && !xd->is_chroma_ref) break; | 
 |         if (plane == AOM_PLANE_U && is_cctx_allowed(cm, xd)) continue; | 
 |         const TX_SIZE tx_size = av1_get_tx_size(plane, xd); | 
 |         const int stepr = tx_size_high_unit[tx_size]; | 
 |         const int stepc = tx_size_wide_unit[tx_size]; | 
 |         const int step = stepr * stepc; | 
 |         const struct macroblockd_plane *const pd = &xd->plane[plane]; | 
 |         const int ss_x = pd->subsampling_x; | 
 |         const int ss_y = pd->subsampling_y; | 
 |         const BLOCK_SIZE plane_bsize = | 
 |             get_mb_plane_block_size(xd, mbmi, plane, ss_x, ss_y); | 
 |         const int plane_unit_height = | 
 |             get_plane_tx_unit_height(xd, plane_bsize, plane, row, ss_y); | 
 |         const int plane_unit_width = | 
 |             get_plane_tx_unit_width(xd, plane_bsize, plane, col, ss_x); | 
 |         for (int blk_row = row >> ss_y; blk_row < plane_unit_height; | 
 |              blk_row += stepr) { | 
 |           for (int blk_col = col >> ss_x; blk_col < plane_unit_width; | 
 |                blk_col += stepc) { | 
 |             // Loop order for the two chroma planes is changed for CCTX | 
 |             // because the transform information for both planes are needed at | 
 |             // once at the decoder side. | 
 |             if (plane == AOM_PLANE_V && is_cctx_allowed(cm, xd)) { | 
 |               const int code_rest = | 
 |                   av1_write_sig_txtype(cm, x, w, blk_row, blk_col, AOM_PLANE_U, | 
 |                                        block[AOM_PLANE_U], tx_size); | 
 |               if (code_rest) | 
 |                 av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, AOM_PLANE_U, | 
 |                                      block[AOM_PLANE_U], tx_size); | 
 |               block[AOM_PLANE_U] += step; | 
 |             } | 
 |             const int code_rest = av1_write_sig_txtype( | 
 |                 cm, x, w, blk_row, blk_col, plane, block[plane], tx_size); | 
 |             const TX_TYPE tx_type = av1_get_tx_type( | 
 |                 xd, get_plane_type(plane), blk_row, blk_col, tx_size, | 
 |                 is_reduced_tx_set_used(cm, get_plane_type(plane))); | 
 |             if (code_rest) { | 
 |               if ((mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                    get_primary_tx_type(tx_type) == IDTX && | 
 |                    plane == PLANE_TYPE_Y) || | 
 |                   use_inter_fsc(cm, plane, tx_type, is_inter)) { | 
 |                 av1_write_coeffs_txb_skip(cm, x, w, blk_row, blk_col, plane, | 
 |                                           block[plane], tx_size); | 
 |               } else { | 
 |                 av1_write_coeffs_txb(cm, x, w, blk_row, blk_col, plane, | 
 |                                      block[plane], tx_size); | 
 |               } | 
 |             } | 
 |             block[plane] += step; | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 | } | 
 | #endif  // CONFIG_NEW_TX_PARTITION | 
 |  | 
 | int get_cctx_type_cost(const AV1_COMMON *cm, const MACROBLOCK *x, | 
 |                        const MACROBLOCKD *xd, int plane, TX_SIZE tx_size, | 
 |                        int block, CctxType cctx_type) { | 
 |   const int skip_cctx = is_inter_block(xd->mi[0], xd->tree_type) | 
 |                             ? 0 | 
 |                             : (x->plane[plane].eobs[block] == 1); | 
 |   if (plane == AOM_PLANE_U && x->plane[plane].eobs[block] && | 
 |       is_cctx_allowed(cm, xd) && !skip_cctx) { | 
 |     const TX_SIZE square_tx_size = txsize_sqr_map[tx_size]; | 
 |     int above_cctx, left_cctx; | 
 |     get_above_and_left_cctx_type(cm, xd, &above_cctx, &left_cctx); | 
 |     const int cctx_ctx = get_cctx_context(xd, &above_cctx, &left_cctx); | 
 |     return x->mode_costs.cctx_type_cost[square_tx_size][cctx_ctx][cctx_type]; | 
 |   } else { | 
 |     return 0; | 
 |   } | 
 | } | 
 |  | 
 | // This function gets the estimated bit cost for a 'secondary tx set' | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 | static int get_sec_tx_set_cost(const MACROBLOCK *x, const MACROBLOCKD *xd, | 
 |                                const MB_MODE_INFO *mbmi, TX_SIZE tx_size, | 
 | #else | 
 | static int get_sec_tx_set_cost(const MACROBLOCK *x, const MB_MODE_INFO *mbmi, | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 |                                TX_TYPE tx_type) { | 
 |   uint8_t stx_set_flag = get_secondary_tx_set(tx_type); | 
 | #if !CONFIG_E124_IST_REDUCE_METHOD1 | 
 |   if (get_primary_tx_type(tx_type) == ADST_ADST) stx_set_flag -= IST_DIR_SIZE; | 
 | #endif  // !CONFIG_E124_IST_REDUCE_METHOD1 | 
 |   assert(stx_set_flag < IST_DIR_SIZE); | 
 |   uint8_t intra_mode = get_intra_mode(mbmi, PLANE_TYPE_Y); | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |   if (!is_inter_block(mbmi, xd->tree_type) && tx_size_wide[tx_size] >= 8 && | 
 |       tx_size_high[tx_size] >= 8 && get_primary_tx_type(tx_type) == ADST_ADST) { | 
 |     return x->mode_costs.most_probable_stx_set_flag_cost_ADST_ADST | 
 |         [most_probable_stx_mapping_ADST_ADST[intra_mode][stx_set_flag]]; | 
 |   } else { | 
 |     return x->mode_costs.most_probable_stx_set_flag_cost | 
 |         [most_probable_stx_mapping[intra_mode][stx_set_flag]]; | 
 |   } | 
 | #else | 
 |   return x->mode_costs.most_probable_stx_set_flag_cost | 
 |       [most_probable_stx_mapping[intra_mode][stx_set_flag]]; | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | } | 
 |  | 
 | // TODO(angiebird): use this function whenever it's possible | 
 | int get_tx_type_cost(const MACROBLOCK *x, const MACROBLOCKD *xd, int plane, | 
 |                      TX_SIZE tx_size, TX_TYPE tx_type, int reduced_tx_set_used, | 
 |                      int eob, int bob_code, int is_fsc) { | 
 |   if (plane > 0) return 0; | 
 |  | 
 |   const TX_SIZE square_tx_size = txsize_sqr_map[tx_size]; | 
 |  | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   if (mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |       !is_inter_block(mbmi, xd->tree_type) && plane == PLANE_TYPE_Y) { | 
 |     return 0; | 
 |   } | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |   const TX_SIZE tx_size_sqr_up = txsize_sqr_up_map[tx_size]; | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 | #if CONFIG_IMPROVE_LOSSLESS_TXM | 
 |   if (xd->lossless[xd->mi[0]->segment_id]) { | 
 |     if (is_inter && tx_size == TX_4X4) { | 
 |       TX_TYPE lossless_inter_tx_type = get_primary_tx_type(tx_type) == IDTX; | 
 |       return x->mode_costs.lossless_inter_tx_type_cost[lossless_inter_tx_type]; | 
 |     } | 
 |   } | 
 | #endif  // CONFIG_IMPROVE_LOSSLESS_TXM | 
 |   if (get_ext_tx_types(tx_size, is_inter, reduced_tx_set_used) > 1 && | 
 |       !xd->lossless[xd->mi[0]->segment_id]) { | 
 |     const int ext_tx_set = | 
 |         get_ext_tx_set(tx_size, is_inter, reduced_tx_set_used); | 
 |     if (is_inter) { | 
 |       if (ext_tx_set > 0) { | 
 |         const int esc_eob = is_fsc ? bob_code : eob; | 
 |         const int eob_tx_ctx = | 
 |             get_lp2tx_ctx(tx_size, get_txb_bwl(tx_size), esc_eob); | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         const TxSetType tx_set_type = | 
 |             av1_get_ext_tx_set_type(tx_size, is_inter, reduced_tx_set_used); | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         int tx_type_cost = 0; | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         if (tx_set_type != EXT_TX_SET_LONG_SIDE_64 && | 
 |             tx_set_type != EXT_TX_SET_LONG_SIDE_32) { | 
 |           tx_type_cost = | 
 |               x->mode_costs | 
 |                   .inter_tx_type_costs[ext_tx_set][eob_tx_ctx][square_tx_size] | 
 |                                       [get_primary_tx_type(tx_type)]; | 
 |         } else { | 
 |           bool is_long_side_dct = | 
 |               is_dct_type(tx_size, get_primary_tx_type(tx_type)); | 
 |           if (tx_size_sqr_up == TX_32X32) { | 
 |             tx_type_cost += | 
 |                 x->mode_costs.tx_ext_32_costs[is_inter][is_long_side_dct]; | 
 |           } | 
 |  | 
 |           int tx_idx_for_large_txfm = get_idx_from_txtype_for_large_txfm( | 
 |               tx_set_type, get_primary_tx_type(tx_type), | 
 |               is_long_side_dct);  // 0: DCT_DCT, 1: ADST, 2: FLIPADST, // 3: | 
 |                                   // Identity | 
 |           tx_type_cost += | 
 |               x->mode_costs | 
 |                   .inter_ext_tx_short_side_costs[eob_tx_ctx][square_tx_size] | 
 |                                                 [tx_idx_for_large_txfm]; | 
 |         } | 
 | #else | 
 |         tx_type_cost = | 
 |             x->mode_costs | 
 |                 .inter_tx_type_costs[ext_tx_set][eob_tx_ctx][square_tx_size] | 
 |                                     [get_primary_tx_type(tx_type)]; | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         if (block_signals_sec_tx_type(xd, tx_size, tx_type, eob) && | 
 |             xd->enable_ist) { | 
 |           tx_type_cost += | 
 |               x->mode_costs.stx_flag_cost[is_inter][square_tx_size] | 
 |                                          [get_secondary_tx_type(tx_type)]; | 
 |         } | 
 |         return tx_type_cost; | 
 |       } | 
 |     } else { | 
 |       if (ext_tx_set > 0) { | 
 |         PREDICTION_MODE intra_dir; | 
 |         if (mbmi->filter_intra_mode_info.use_filter_intra) | 
 |           intra_dir = fimode_to_intradir[mbmi->filter_intra_mode_info | 
 |                                              .filter_intra_mode]; | 
 |         else | 
 |           intra_dir = get_intra_mode(mbmi, AOM_PLANE_Y); | 
 |         int tx_type_cost = 0; | 
 |         if (eob != 1) { | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |           const TxSetType tx_set_type = | 
 |               av1_get_ext_tx_set_type(tx_size, is_inter, reduced_tx_set_used); | 
 |           const int size_info = av1_size_class[tx_size]; | 
 |           const int tx_type_idx = av1_tx_type_to_idx( | 
 |               get_primary_tx_type(tx_type), tx_set_type, intra_dir, size_info); | 
 |           if (tx_set_type != EXT_TX_SET_LONG_SIDE_64 && | 
 |               tx_set_type != EXT_TX_SET_LONG_SIDE_32) { | 
 |             tx_type_cost += | 
 |                 x->mode_costs.intra_tx_type_costs[ext_tx_set][square_tx_size] | 
 |                                                  [tx_type_idx]; | 
 |           } else { | 
 |             bool is_long_side_dct = | 
 |                 is_dct_type(tx_size, get_primary_tx_type(tx_type)); | 
 |             if (tx_size_sqr_up == TX_32X32) { | 
 |               tx_type_cost += | 
 |                   x->mode_costs.tx_ext_32_costs[is_inter][is_long_side_dct]; | 
 |             } | 
 |  | 
 |             int tx_idx_for_large_txfm = get_idx_from_txtype_for_large_txfm( | 
 |                 tx_set_type, get_primary_tx_type(tx_type), | 
 |                 is_long_side_dct);  // 0: DCT_DCT, 1: ADST, 2: FLIPADST, // 3: | 
 |                                     // Identity | 
 |             tx_type_cost += | 
 |                 x->mode_costs | 
 |                     .intra_ext_tx_short_side_costs[square_tx_size] | 
 |                                                   [tx_idx_for_large_txfm]; | 
 |           } | 
 | #else | 
 |           const TxSetType tx_set_type = | 
 |               av1_get_ext_tx_set_type(tx_size, is_inter, reduced_tx_set_used); | 
 |           const int size_info = av1_size_class[tx_size]; | 
 |           const int tx_type_idx = av1_tx_type_to_idx( | 
 |               get_primary_tx_type(tx_type), tx_set_type, intra_dir, size_info); | 
 |           tx_type_cost += | 
 |               x->mode_costs | 
 |                   .intra_tx_type_costs[ext_tx_set][square_tx_size][tx_type_idx]; | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         } else { | 
 |           return tx_type_cost; | 
 |         } | 
 |  | 
 |         if (block_signals_sec_tx_type(xd, tx_size, tx_type, eob) && | 
 |             xd->enable_ist) { | 
 |           tx_type_cost += | 
 |               x->mode_costs.stx_flag_cost[is_inter][square_tx_size] | 
 |                                          [get_secondary_tx_type(tx_type)]; | 
 | #if CONFIG_IST_SET_FLAG | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |           if (get_secondary_tx_type(tx_type) > 0) | 
 |             tx_type_cost += get_sec_tx_set_cost(x, xd, mbmi, tx_size, tx_type); | 
 | #else | 
 |           if (get_secondary_tx_type(tx_type) > 0) | 
 |             tx_type_cost += get_sec_tx_set_cost(x, mbmi, tx_type); | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | #endif  // CONFIG_IST_SET_FLAG | 
 |         } | 
 |         return tx_type_cost; | 
 |       } | 
 |     } | 
 |   } else if (!xd->lossless[xd->mi[0]->segment_id]) { | 
 |     if (block_signals_sec_tx_type(xd, tx_size, tx_type, eob) && | 
 |         xd->enable_ist) { | 
 |       int tx_type_cost = | 
 |           x->mode_costs.stx_flag_cost[is_inter][square_tx_size] | 
 |                                      [get_secondary_tx_type(tx_type)]; | 
 | #if CONFIG_IST_SET_FLAG | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |       if (get_secondary_tx_type(tx_type) > 0 && !is_inter) | 
 |         tx_type_cost += get_sec_tx_set_cost(x, xd, mbmi, tx_size, tx_type); | 
 | #else | 
 |       if (get_secondary_tx_type(tx_type) > 0 && !is_inter) | 
 |         tx_type_cost += get_sec_tx_set_cost(x, mbmi, tx_type); | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | #endif  // CONFIG_IST_SET_FLAG | 
 |       return tx_type_cost; | 
 |     } | 
 |   } | 
 |   return 0; | 
 | } | 
 |  | 
 | static INLINE void update_coeff_eob_fast(int *eob, int shift, | 
 |                                          const int32_t *dequant_ptr, | 
 |                                          const int16_t *scan, | 
 |                                          const tran_low_t *coeff_ptr, | 
 |                                          tran_low_t *qcoeff_ptr, | 
 |                                          tran_low_t *dqcoeff_ptr) { | 
 |   // TODO(sarahparker) make this work for aomqm | 
 |   int eob_out = *eob; | 
 |   int zbin[2] = { dequant_ptr[0] + ROUND_POWER_OF_TWO(dequant_ptr[0] * 70, | 
 |                                                       7 + QUANT_TABLE_BITS), | 
 |                   dequant_ptr[1] + ROUND_POWER_OF_TWO(dequant_ptr[1] * 70, | 
 |                                                       7 + QUANT_TABLE_BITS) }; | 
 |   for (int i = *eob - 1; i >= 0; i--) { | 
 |     const int rc = scan[i]; | 
 |     const int qcoeff = qcoeff_ptr[rc]; | 
 |     const int coeff = coeff_ptr[rc]; | 
 |     const int coeff_sign = AOMSIGN(coeff); | 
 |     int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign; | 
 |  | 
 |     if (((abs_coeff << (1 + shift)) < zbin[rc != 0]) || (qcoeff == 0)) { | 
 |       eob_out--; | 
 |       qcoeff_ptr[rc] = 0; | 
 |       dqcoeff_ptr[rc] = 0; | 
 |     } else { | 
 |       break; | 
 |     } | 
 |   } | 
 |  | 
 |   *eob = eob_out; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int warehouse_efficients_txb_skip( | 
 |     const AV1_COMMON *cm, const MACROBLOCK *x, const int plane, const int block, | 
 |     const TX_SIZE tx_size, const TXB_CTX *const txb_ctx, | 
 |     const struct macroblock_plane *p, const int eob, | 
 |     const LV_MAP_COEFF_COST *const coeff_costs, const MACROBLOCKD *const xd, | 
 |     const TX_TYPE tx_type, const CctxType cctx_type, int reduced_tx_set_used) { | 
 |   const tran_low_t *const qcoeff = p->qcoeff + BLOCK_OFFSET(block); | 
 |   const int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *const scan = scan_order->scan; | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   const int pred_mode_ctx = | 
 |       (is_inter || xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |   int cost = coeff_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][0]; | 
 | #else | 
 |   int cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   int8_t signs_buf[TX_PAD_2D]; | 
 |   int8_t *const signs = set_signs(signs_buf, width); | 
 |   av1_txb_init_levels_signs(qcoeff, width, height, levels_buf, signs_buf); | 
 |   const int bob_code = p->bobs[block]; | 
 |   const int bob = av1_get_max_eob(tx_size) - bob_code; | 
 | #if !CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(cm, plane, tx_type, is_inter); | 
 |   cost += get_tx_type_cost(x, xd, plane, tx_size, tx_type, reduced_tx_set_used, | 
 |                            eob, bob_code, is_fsc); | 
 |  | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   const LV_MAP_EOB_COST *const eob_costs = | 
 |       &x->coeff_costs.eob_costs[eob_multi_size][PLANE_TYPE_Y]; | 
 |   cost += get_eob_cost(bob_code, eob_costs, coeff_costs | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                        , | 
 |                        is_inter | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   ); | 
 |  | 
 |   cost += get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |   DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |   av1_get_nz_map_contexts_skip_c(levels, scan, bob, eob, tx_size, | 
 |                                  coeff_contexts); | 
 |   const int(*lps_cost)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = | 
 |       coeff_costs->lps_cost_skip; | 
 |   const int(*base_cost)[8] = coeff_costs->idtx_base_cost; | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   for (int c = bob; c < eob; c++) { | 
 |     const int pos = scan[c]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const int level = abs(v); | 
 |     if (c == bob) { | 
 |       cost += coeff_costs->base_bob_cost[coeff_ctx][AOMMIN(level, 3) - 1]; | 
 |     } else { | 
 |       cost += base_cost[coeff_ctx][AOMMIN(level, 3)]; | 
 |     } | 
 |     if (v) { | 
 |       if (level > NUM_BASE_LEVELS) { | 
 |         const int ctx = get_br_ctx_skip(levels, pos, bwl); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |         int hr_level = 0; | 
 |         cost += get_br_cost(level, lps_cost[ctx], hr_level_avg, &hr_level); | 
 |         hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |         cost += get_br_cost(level, lps_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       } | 
 |     } | 
 |   } | 
 |   for (int c = bob; c < eob; c++) { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const tran_low_t level = abs(v); | 
 |     const int sign = (v < 0) ? 1 : 0; | 
 |     if (level) { | 
 |       int idtx_sign_ctx = get_sign_ctx_skip(signs, levels, pos, bwl); | 
 |       cost += coeff_costs->idtx_sign_cost[idtx_sign_ctx][sign]; | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int warehouse_efficients_txb( | 
 |     const AV1_COMMON *cm, const MACROBLOCK *x, const int plane, const int block, | 
 |     const TX_SIZE tx_size, const TXB_CTX *const txb_ctx, | 
 |     const struct macroblock_plane *p, const int eob, | 
 |     const PLANE_TYPE plane_type, const LV_MAP_COEFF_COST *const coeff_costs, | 
 |     const MACROBLOCKD *const xd, const TX_TYPE tx_type, | 
 |     const CctxType cctx_type, const TX_CLASS tx_class, int reduced_tx_set_used, | 
 |     bool enable_parity_hiding, const LV_MAP_COEFF_COST *const coeff_costs_ph) { | 
 |   const tran_low_t *const qcoeff = p->qcoeff + BLOCK_OFFSET(block); | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   const struct macroblock_plane *pu = &x->plane[AOM_PLANE_U]; | 
 |   int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |   if (plane == AOM_PLANE_V) { | 
 |     txb_skip_ctx += (pu->eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |   } | 
 | #else | 
 |   const int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *const scan = scan_order->scan; | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 |   DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   const LV_MAP_EOB_COST *const eob_costs = | 
 |       &x->coeff_costs.eob_costs[eob_multi_size][plane_type]; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   int cost; | 
 |   if (plane == AOM_PLANE_V) { | 
 |     cost = coeff_costs->v_txb_skip_cost[txb_skip_ctx][0]; | 
 |   } else { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |     const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |     const int pred_mode_ctx = | 
 |         (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |     cost = coeff_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][0]; | 
 | #else | 
 |     cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   } | 
 | #else | 
 |   int cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   av1_txb_init_levels(qcoeff, width, height, levels); | 
 |  | 
 |   const int bob_code = p->bobs[block]; | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(cm, plane, tx_type, is_inter); | 
 |  | 
 |   cost += get_tx_type_cost(x, xd, plane, tx_size, tx_type, reduced_tx_set_used, | 
 |                            eob, bob_code, is_fsc); | 
 |   cost += get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |   cost += get_eob_cost(eob, eob_costs, coeff_costs | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                        , | 
 |                        is_inter | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   ); | 
 |  | 
 |   av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, coeff_contexts, | 
 |                           plane); | 
 |  | 
 |   const int(*lps_cost)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = | 
 |       coeff_costs->lps_cost; | 
 |   const int(*lps_lf_cost)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = | 
 |       coeff_costs->lps_lf_cost; | 
 |   const int(*lps_cost_uv)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = | 
 |       coeff_costs->lps_cost_uv; | 
 |   const int(*lps_lf_cost_uv)[COEFF_BASE_RANGE + 1 + COEFF_BASE_RANGE + 1] = | 
 |       coeff_costs->lps_lf_cost_uv; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   int c = eob - 1; | 
 |   { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const int sign = AOMSIGN(v); | 
 |     const int level = (v ^ sign) - sign; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const int row = pos >> bwl; | 
 |     const int col = pos - (row << bwl); | 
 |     int limits = get_lf_limits(row, col, tx_class, plane); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         cost += | 
 |             coeff_costs | 
 |                 ->base_lf_eob_cost_uv[coeff_ctx] | 
 |                                      [AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1]; | 
 |       } else { | 
 |         cost += coeff_costs->base_eob_cost_uv[coeff_ctx][AOMMIN(level, 3) - 1]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         cost += coeff_costs | 
 |                     ->base_lf_eob_cost[coeff_ctx] | 
 |                                       [AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1]; | 
 |       } else { | 
 |         cost += coeff_costs->base_eob_cost[coeff_ctx][AOMMIN(level, 3) - 1]; | 
 |       } | 
 |     } | 
 |  | 
 |     if (v) { | 
 |       // sign bit cost | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx_lf_eob_chroma(pos, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_ctx = 0; /* eob */ | 
 |             cost += | 
 |                 get_br_lf_cost(level, lps_lf_cost_uv[ctx], hr_ctx, &hr_level); | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = 0; /* get_bf_ctx_eob_chroma */ | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_ctx = 0; /* eob */ | 
 |             cost += get_br_cost(level, lps_cost_uv[ctx], hr_ctx, &hr_level); | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx_lf_eob(pos, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_ctx = 0; /* eob */ | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx], hr_ctx, &hr_level); | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = 0; /* get_br_ctx_eob */ | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             int hr_ctx = 0; /* eob */ | 
 |             cost += get_br_cost(level, lps_cost[ctx], hr_ctx, &hr_level); | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } | 
 |       const bool dc_2dtx = (c == 0); | 
 |       const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |       const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |       if (dc_2dtx || dc_hor || dc_ver) { | 
 |         const int dc_ph_group = 0;  // PH disabled | 
 |         const int dc_sign_ctx = dc_2dtx ? txb_ctx->dc_sign_ctx : 0; | 
 |         const int sign01 = (sign ^ sign) - sign; | 
 |         if (plane == AOM_PLANE_V) { | 
 |           cost += coeff_costs | 
 |                       ->v_dc_sign_cost[xd->tmp_sign[pos]][dc_sign_ctx][sign01]; | 
 |         } else { | 
 |           cost += coeff_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign01]; | 
 |         } | 
 |         if (c == 0) return cost; | 
 |       } else { | 
 | #if CONFIG_CTX_V_AC_SIGN | 
 |         cost += av1_cost_literal(1); | 
 | #else | 
 |         if (plane == AOM_PLANE_V) { | 
 |           const int sign01 = (sign ^ sign) - sign; | 
 |           cost += coeff_costs->v_ac_sign_cost[xd->tmp_sign[pos]][sign01]; | 
 |         } else { | 
 |           cost += av1_cost_literal(1); | 
 |         } | 
 | #endif  // CONFIG_CTX_V_AC_SIGN | 
 |       } | 
 |     } | 
 |   } | 
 | #if CONFIG_TCQ | 
 |   const int(*base_lf_cost)[TCQ_CTXS][LF_BASE_SYMBOLS * 2] = | 
 |       coeff_costs->base_lf_cost; | 
 |   const int(*base_cost)[TCQ_CTXS][8] = coeff_costs->base_cost; | 
 |   const int(*base_lf_cost_uv)[TCQ_CTXS][LF_BASE_SYMBOLS * 2] = | 
 |       coeff_costs->base_lf_cost_uv; | 
 |   const int(*base_cost_uv)[TCQ_CTXS][8] = coeff_costs->base_cost_uv; | 
 | #else | 
 |   const int(*base_lf_cost)[LF_BASE_SYMBOLS * 2] = coeff_costs->base_lf_cost; | 
 |   const int(*base_cost)[8] = coeff_costs->base_cost; | 
 |   const int(*base_lf_cost_uv)[LF_BASE_SYMBOLS * 2] = | 
 |       coeff_costs->base_lf_cost_uv; | 
 |   const int(*base_cost_uv)[8] = coeff_costs->base_cost_uv; | 
 | #endif  // CONFIG_TCQ | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = hr_level >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   for (c = eob - 2; c >= 1; --c) { | 
 |     const int pos = scan[c]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const int level = abs(v); | 
 |     const int row = pos >> bwl; | 
 |     const int col = pos - (row << bwl); | 
 |     int limits = get_lf_limits(row, col, tx_class, plane); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         cost += base_lf_cost_uv[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                [0] | 
 | #endif  // CONFIG_TCQ | 
 |                                [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |       } else { | 
 |         cost += base_cost_uv[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                             [0] | 
 | #endif  // CONFIG_TCQ | 
 |                             [AOMMIN(level, 3)]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         cost += base_lf_cost[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                             [0] | 
 | #endif  // CONFIG_TCQ | 
 |                             [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |       } else { | 
 |         cost += base_cost[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                          [0] | 
 | #endif  // CONFIG_TCQ | 
 |                          [AOMMIN(level, 3)]; | 
 |       } | 
 |     } | 
 |     if (v) { | 
 |       // sign bit cost | 
 |       const bool dc_2dtx = (c == 0); | 
 |       const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |       const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |       if (dc_2dtx || dc_hor || dc_ver) { | 
 |         const int dc_ph_group = 0;  // PH disabled | 
 |         const int dc_sign_ctx = dc_2dtx ? txb_ctx->dc_sign_ctx : 0; | 
 |         const int sign = AOMSIGN(v); | 
 |         const int sign01 = (sign ^ sign) - sign; | 
 |         if (plane == AOM_PLANE_V) { | 
 |           cost += coeff_costs | 
 |                       ->v_dc_sign_cost[xd->tmp_sign[pos]][dc_sign_ctx][sign01]; | 
 |         } else { | 
 |           cost += coeff_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign01]; | 
 |         } | 
 |       } else { | 
 | #if CONFIG_CTX_V_AC_SIGN | 
 |         cost += av1_cost_literal(1); | 
 | #else | 
 |         if (plane == AOM_PLANE_V) { | 
 |           const int sign = AOMSIGN(v); | 
 |           const int sign01 = (sign ^ sign) - sign; | 
 |           cost += coeff_costs->v_ac_sign_cost[xd->tmp_sign[pos]][sign01]; | 
 |         } else { | 
 |           cost += av1_cost_literal(1); | 
 |         } | 
 | #endif  // CONFIG_CTX_V_AC_SIGN | 
 |       } | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_lf_cost(level, lps_lf_cost_uv[ctx], hr_level_avg, | 
 |                                    &hr_level); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += | 
 |                 get_br_cost(level, lps_cost_uv[ctx], hr_level_avg, &hr_level); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx], hr_level_avg, | 
 |                                    &hr_level); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_cost(level, lps_cost[ctx], hr_level_avg, &hr_level); | 
 |             hr_level_avg = (hr_level_avg + hr_level) >> 1; | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   // c == 0 after previous loop | 
 |   int num_nz = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   for (c = eob - 1; c > 0; --c) { | 
 |     const int pos = scan[c]; | 
 |     num_nz += !!qcoeff[pos]; | 
 |   } | 
 |   c = 0; | 
 |   if (num_nz >= PHTHRESH && enable_parity_hiding) { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const int level = abs(v); | 
 |     const int q_index = level >> 1; | 
 |     cost += coeff_costs_ph->base_ph_cost[get_base_ctx_ph( | 
 |         levels, pos, bwl, tx_class)][AOMMIN(q_index, 3)]; | 
 |     if (v) { | 
 |       const int dc_ph_group = 1;  // PH enabled | 
 |       const bool dc_2dtx = (c == 0); | 
 |       const int dc_sign_ctx = dc_2dtx ? txb_ctx->dc_sign_ctx : 0; | 
 |       cost += coeff_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][v < 0]; | 
 |  | 
 |       if (q_index > NUM_BASE_LEVELS) { | 
 |         const int ctx = get_par_br_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |         // Use context divided by 2 since the coefficient is also divided by | 
 |         // 2 | 
 |         cost += get_br_cost(q_index, coeff_costs_ph->lps_ph_cost[ctx], | 
 |                             hr_level_avg >> 1, &hr_level); | 
 | #else | 
 |         cost += get_br_cost(q_index, coeff_costs_ph->lps_ph_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       } | 
 |     } | 
 |     return cost; | 
 |   } | 
 |   { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = qcoeff[pos]; | 
 |     const int coeff_ctx = coeff_contexts[pos]; | 
 |     const int sign = AOMSIGN(v); | 
 |     const int level = (v ^ sign) - sign; | 
 |     const int row = pos >> bwl; | 
 |     const int col = pos - (row << bwl); | 
 |     int limits = get_lf_limits(row, col, tx_class, plane); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         cost += base_lf_cost_uv[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                [0] | 
 | #endif  // CONFIG_TCQ | 
 |                                [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |       } else { | 
 |         cost += base_cost_uv[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                             [0] | 
 | #endif  // CONFIG_TCQ | 
 |                             [AOMMIN(level, 3)]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         cost += base_lf_cost[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                             [0] | 
 | #endif  // CONFIG_TCQ | 
 |                             [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |       } else { | 
 |         cost += base_cost[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                          [0] | 
 | #endif  // CONFIG_TCQ | 
 |                          [AOMMIN(level, 3)]; | 
 |       } | 
 |     } | 
 |  | 
 |     if (v) { | 
 |       // sign bit cost | 
 |       const int dc_ph_group = 0;  // PH disabled | 
 |       const bool dc_2dtx = (c == 0); | 
 |       const int sign01 = (sign ^ sign) - sign; | 
 |       const int dc_sign_ctx = dc_2dtx ? txb_ctx->dc_sign_ctx : 0; | 
 |       if (plane == AOM_PLANE_V) { | 
 |         cost += | 
 |             coeff_costs->v_dc_sign_cost[xd->tmp_sign[pos]][dc_sign_ctx][sign01]; | 
 |       } else { | 
 |         cost += coeff_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign01]; | 
 |       } | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_lf_cost(level, lps_lf_cost_uv[ctx], hr_level_avg, | 
 |                                    &hr_level); | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += | 
 |                 get_br_cost(level, lps_cost_uv[ctx], hr_level_avg, &hr_level); | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost_uv[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx], hr_level_avg, | 
 |                                    &hr_level); | 
 | #else | 
 |             cost += get_br_lf_cost(level, lps_lf_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |             cost += get_br_cost(level, lps_cost[ctx], hr_level_avg, &hr_level); | 
 | #else | 
 |             cost += get_br_cost(level, lps_cost[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int warehouse_efficients_txb_laplacian( | 
 |     const AV1_COMMON *cm, const MACROBLOCK *x, const int plane, const int block, | 
 |     const TX_SIZE tx_size, const TXB_CTX *const txb_ctx, const int eob, | 
 |     const PLANE_TYPE plane_type, const LV_MAP_COEFF_COST *const coeff_costs, | 
 |     const MACROBLOCKD *const xd, const TX_TYPE tx_type, | 
 |     const CctxType cctx_type, int reduced_tx_set_used) { | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |   if (plane == AOM_PLANE_V) { | 
 |     txb_skip_ctx += | 
 |         (x->plane[AOM_PLANE_U].eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |   } | 
 | #else | 
 |   const int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   const LV_MAP_EOB_COST *const eob_costs = | 
 |       &x->coeff_costs.eob_costs[eob_multi_size][plane_type]; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   int cost; | 
 |   if (plane == AOM_PLANE_V) { | 
 |     cost = coeff_costs->v_txb_skip_cost[txb_skip_ctx][0]; | 
 |   } else { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |     const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |     const int pred_mode_ctx = | 
 |         (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |     cost = coeff_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][0]; | 
 | #else | 
 |     cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   } | 
 | #else | 
 |   int cost = coeff_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |  | 
 |   const int bob_code = x->plane[plane].bobs[block]; | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(cm, plane, tx_type, is_inter); | 
 |  | 
 |   cost += get_tx_type_cost(x, xd, plane, tx_size, tx_type, reduced_tx_set_used, | 
 |                            eob, bob_code, is_fsc); | 
 |   cost += get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |  | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   if ((mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |        get_primary_tx_type(tx_type) == IDTX && plane == PLANE_TYPE_Y) || | 
 |       use_inter_fsc(cm, plane, tx_type, is_inter_block(mbmi, xd->tree_type))) { | 
 |     cost += | 
 |         av1_cost_coeffs_txb_skip_estimate(x, plane, block, tx_size, tx_type); | 
 |   } else { | 
 | #if CONFIG_EOB_POS_LUMA | 
 |     cost += get_eob_cost(eob, eob_costs, coeff_costs, is_inter); | 
 | #else | 
 |     cost += get_eob_cost(eob, eob_costs, coeff_costs); | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |     cost += av1_cost_coeffs_txb_estimate(x, plane, block, tx_size, tx_type); | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | // Look up table of individual cost of coefficient by its quantization level. | 
 | // determined based on Laplacian distribution conditioned on estimated context | 
 | static const int costLUT[15] = { -1143, 53,   545,  825,  1031, | 
 |                                  1209,  1393, 1577, 1763, 1947, | 
 |                                  2132,  2317, 2501, 2686, 2871 }; | 
 | static const int const_term = (1 << AV1_PROB_COST_SHIFT); | 
 | static const int loge_par = ((14427 << AV1_PROB_COST_SHIFT) + 5000) / 10000; | 
 | int av1_cost_coeffs_txb_estimate(const MACROBLOCK *x, const int plane, | 
 |                                  const int block, const TX_SIZE tx_size, | 
 |                                  const TX_TYPE tx_type) { | 
 |   assert(plane == 0); | 
 |  | 
 |   int cost = 0; | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *scan = scan_order->scan; | 
 |   tran_low_t *qcoeff = p->qcoeff + BLOCK_OFFSET(block); | 
 |  | 
 |   int eob = p->eobs[block]; | 
 |  | 
 |   // coeffs | 
 |   int c = eob - 1; | 
 |   // eob | 
 |   { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = abs(qcoeff[pos]) - 1; | 
 |     cost += (v << (AV1_PROB_COST_SHIFT + 2)); | 
 |   } | 
 |   // other coeffs | 
 |   for (c = eob - 2; c >= 0; c--) { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = abs(qcoeff[pos]); | 
 |     const int idx = AOMMIN(v, 14); | 
 |  | 
 |     cost += costLUT[idx]; | 
 |   } | 
 |  | 
 |   // const_term does not contain DC, and log(e) does not contain eob, so both | 
 |   // (eob-1) | 
 |   cost += (const_term + loge_par) * (eob - 1); | 
 |  | 
 |   return cost; | 
 | } | 
 |  | 
 | int av1_cost_coeffs_txb_skip_estimate(const MACROBLOCK *x, const int plane, | 
 |                                       const int block, const TX_SIZE tx_size, | 
 |                                       const TX_TYPE tx_type) { | 
 |   assert(plane == PLANE_TYPE_Y); | 
 |   int cost = 0; | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); | 
 |   const int16_t *scan = scan_order->scan; | 
 |   tran_low_t *qcoeff = p->qcoeff + BLOCK_OFFSET(block); | 
 |   int eob = p->eobs[block]; | 
 |   assert(eob == av1_get_max_eob(tx_size)); | 
 |   // coeffs | 
 |   for (int c = 0; c < eob; c++) { | 
 |     const int pos = scan[c]; | 
 |     const tran_low_t v = abs(qcoeff[pos]); | 
 |     const int idx = AOMMIN(v, 14); | 
 |     cost += costLUT[idx]; | 
 |   } | 
 |   cost += (const_term + loge_par) * (eob - 1); | 
 |   return cost; | 
 | } | 
 |  | 
 | int av1_cost_coeffs_txb(const AV1_COMMON *cm, const MACROBLOCK *x, | 
 |                         const int plane, const int block, const TX_SIZE tx_size, | 
 |                         const TX_TYPE tx_type, const CctxType cctx_type, | 
 |                         const TXB_CTX *const txb_ctx, int reduced_tx_set_used) { | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   const int eob = p->eobs[block]; | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const LV_MAP_COEFF_COST *const coeff_costs = | 
 |       &x->coeff_costs.coeff_costs[txs_ctx][plane_type]; | 
 |   const MACROBLOCKD *const xd = &x->e_mbd; | 
 |   if (eob == 0) { | 
 |     int skip_cost = 0; | 
 | #if CCTX_C2_DROPPED | 
 |     if (plane == AOM_PLANE_V && !keep_chroma_c2(cctx_type) && | 
 |         is_cctx_allowed(cm, xd)) | 
 |       return 0; | 
 | #endif  // CCTX_C2_DROPPED | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |     if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |       const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |       const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |       const int pred_mode_ctx = | 
 |           (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |       skip_cost += coeff_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][1]; | 
 | #else | 
 |       skip_cost += coeff_costs->txb_skip_cost[txb_skip_ctx][1]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     } else { | 
 |       txb_skip_ctx += | 
 |           (x->plane[AOM_PLANE_U].eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |       skip_cost += coeff_costs->v_txb_skip_cost[txb_skip_ctx][1]; | 
 |     } | 
 | #else | 
 |     skip_cost += coeff_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     skip_cost += | 
 |         get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |     return skip_cost; | 
 |   } | 
 |   const TX_CLASS tx_class = tx_type_to_class[get_primary_tx_type(tx_type)]; | 
 |   bool enable_parity_hiding = | 
 |       cm->features.allow_parity_hiding && | 
 |       !xd->lossless[xd->mi[0]->segment_id] && plane == PLANE_TYPE_Y && | 
 |       ph_allowed_tx_types[get_primary_tx_type(tx_type)] && (eob > PHTHRESH); | 
 |  | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   if ((mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |        get_primary_tx_type(tx_type) == IDTX && plane == PLANE_TYPE_Y) || | 
 |       use_inter_fsc(cm, plane, tx_type, is_inter_block(mbmi, xd->tree_type))) { | 
 |     return warehouse_efficients_txb_skip(cm, x, plane, block, tx_size, txb_ctx, | 
 |                                          p, eob, coeff_costs, xd, tx_type, | 
 |                                          cctx_type, reduced_tx_set_used); | 
 |   } else { | 
 |     return warehouse_efficients_txb( | 
 |         cm, x, plane, block, tx_size, txb_ctx, p, eob, plane_type, coeff_costs, | 
 |         xd, tx_type, cctx_type, tx_class, reduced_tx_set_used, | 
 |         enable_parity_hiding, &x->coeff_costs.coeff_costs[0][0]); | 
 |   } | 
 | } | 
 |  | 
 | int av1_cost_coeffs_txb_laplacian(const AV1_COMMON *cm, const MACROBLOCK *x, | 
 |                                   const int plane, const int block, | 
 |                                   const TX_SIZE tx_size, const TX_TYPE tx_type, | 
 |                                   const CctxType cctx_type, | 
 |                                   const TXB_CTX *const txb_ctx, | 
 |                                   const int reduced_tx_set_used, | 
 |                                   const int adjust_eob) { | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   int eob = p->eobs[block]; | 
 |  | 
 |   if (adjust_eob) { | 
 |     const SCAN_ORDER *scan_order = get_scan(tx_size, tx_type); | 
 |     const int16_t *scan = scan_order->scan; | 
 |     tran_low_t *tcoeff = p->coeff + BLOCK_OFFSET(block); | 
 |     tran_low_t *qcoeff = p->qcoeff + BLOCK_OFFSET(block); | 
 |     tran_low_t *dqcoeff = p->dqcoeff + BLOCK_OFFSET(block); | 
 |     update_coeff_eob_fast(&eob, av1_get_tx_scale(tx_size), p->dequant_QTX, scan, | 
 |                           tcoeff, qcoeff, dqcoeff); | 
 |     p->eobs[block] = eob; | 
 |   } | 
 |  | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const LV_MAP_COEFF_COST *const coeff_costs = | 
 |       &x->coeff_costs.coeff_costs[txs_ctx][plane_type]; | 
 |   const MACROBLOCKD *const xd = &x->e_mbd; | 
 |   if (eob == 0) { | 
 |     int skip_cost = 0; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |     if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |       const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |       const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |       const int pred_mode_ctx = | 
 |           (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |       skip_cost += coeff_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][1]; | 
 | #else | 
 |       skip_cost += coeff_costs->txb_skip_cost[txb_skip_ctx][1]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     } else { | 
 |       txb_skip_ctx += | 
 |           (x->plane[AOM_PLANE_U].eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |       skip_cost += coeff_costs->v_txb_skip_cost[txb_skip_ctx][1]; | 
 |     } | 
 | #else | 
 |     skip_cost += coeff_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     skip_cost += | 
 |         get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |     return skip_cost; | 
 |   } | 
 |  | 
 |   return warehouse_efficients_txb_laplacian( | 
 |       cm, x, plane, block, tx_size, txb_ctx, eob, plane_type, coeff_costs, xd, | 
 |       tx_type, cctx_type, reduced_tx_set_used); | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE int get_two_coeff_cost_simple( | 
 |     int plane, int ci, tran_low_t abs_qc, int coeff_ctx, | 
 |     const LV_MAP_COEFF_COST *txb_costs, int bwl, TX_CLASS tx_class, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     const uint8_t *levels, int *cost_low, int limits, int hr_level_avg, | 
 |     int *hr_level) { | 
 | #else | 
 |     const uint8_t *levels, int *cost_low, int limits) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   // this simple version assumes the coeff's scan_idx is not DC (scan_idx != 0) | 
 |   // and not the last (scan_idx != eob - 1) | 
 |   assert(ci > 0); | 
 |   int cost = 0; | 
 |  | 
 | #if CONFIG_TCQ | 
 |   const int(*base_lf_cost_ptr)[TCQ_CTXS][LF_BASE_SYMBOLS * 2] = | 
 |       plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |   const int(*base_cost_ptr)[TCQ_CTXS][8] = | 
 |       plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 |   cost += | 
 |       limits | 
 |           ? base_lf_cost_ptr[coeff_ctx][0][AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1)] | 
 |           : base_cost_ptr[coeff_ctx][0][AOMMIN(abs_qc, 3)]; | 
 | #else | 
 |   const int(*base_lf_cost_ptr)[LF_BASE_SYMBOLS * 2] = | 
 |       plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |   const int(*base_cost_ptr)[8] = | 
 |       plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 |  | 
 |   cost += limits | 
 |               ? base_lf_cost_ptr[coeff_ctx][AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1)] | 
 |               : base_cost_ptr[coeff_ctx][AOMMIN(abs_qc, 3)]; | 
 | #endif  // CONFIG_TCQ | 
 |   int diff = 0; | 
 |  | 
 |   if (limits) { | 
 |     if (abs_qc <= (LF_BASE_SYMBOLS - 1)) { | 
 | #if CONFIG_TCQ | 
 |       diff = (abs_qc == 0) ? 0 | 
 |                            : base_lf_cost_ptr[coeff_ctx][0][abs_qc] - | 
 |                                  base_lf_cost_ptr[coeff_ctx][0][abs_qc - 1]; | 
 | #else | 
 |       diff = (abs_qc == 0) ? 0 | 
 |                            : base_lf_cost_ptr[coeff_ctx][abs_qc] - | 
 |                                  base_lf_cost_ptr[coeff_ctx][abs_qc - 1]; | 
 | #endif  // CONFIG_TCQ | 
 |     } | 
 |   } else { | 
 |     if (abs_qc <= 3) { | 
 | #if CONFIG_TCQ | 
 |       diff = (abs_qc == 0) ? 0 | 
 |                            : base_cost_ptr[coeff_ctx][0][abs_qc] - | 
 |                                  base_cost_ptr[coeff_ctx][0][abs_qc - 1]; | 
 | #else | 
 |       diff = (abs_qc == 0) ? 0 | 
 |                            : base_cost_ptr[coeff_ctx][abs_qc] - | 
 |                                  base_cost_ptr[coeff_ctx][abs_qc - 1]; | 
 | #endif  // CONFIG_TCQ | 
 |     } | 
 |   } | 
 |   diff += (abs_qc == 1) ? av1_cost_literal(1) : 0; | 
 |   if (abs_qc) { | 
 |     cost += av1_cost_literal(1); | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx_chroma(levels, ci, bwl, tx_class); | 
 |           int brcost_diff = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_lf_cost_with_diff( | 
 |               abs_qc, txb_costs->lps_lf_cost_uv[br_ctx], &brcost_diff, | 
 |               hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost_with_diff( | 
 |               abs_qc, txb_costs->lps_lf_cost_uv[br_ctx], &brcost_diff); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           diff += brcost_diff; | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx_chroma(levels, ci, bwl, tx_class); | 
 |           int brcost_diff = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_cost_with_diff(abs_qc, txb_costs->lps_cost_uv[br_ctx], | 
 |                                         &brcost_diff, hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_cost_with_diff(abs_qc, txb_costs->lps_cost_uv[br_ctx], | 
 |                                         &brcost_diff); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           diff += brcost_diff; | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_lf_ctx(levels, ci, bwl, tx_class); | 
 |           int brcost_diff = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += | 
 |               get_br_lf_cost_with_diff(abs_qc, txb_costs->lps_lf_cost[br_ctx], | 
 |                                        &brcost_diff, hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost_with_diff( | 
 |               abs_qc, txb_costs->lps_lf_cost[br_ctx], &brcost_diff); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           diff += brcost_diff; | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           const int br_ctx = get_br_ctx(levels, ci, bwl, tx_class); | 
 |           int brcost_diff = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_cost_with_diff(abs_qc, txb_costs->lps_cost[br_ctx], | 
 |                                         &brcost_diff, hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_cost_with_diff(abs_qc, txb_costs->lps_cost[br_ctx], | 
 |                                         &brcost_diff); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |           diff += brcost_diff; | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   *cost_low = cost - diff; | 
 |  | 
 |   return cost; | 
 | } | 
 |  | 
 | /* returns the coefficient encoding cost (level and sign) for first position */ | 
 | static INLINE int get_coeff_cost_bob(int pos, tran_low_t abs_qc, int sign, | 
 |                                      int coeff_ctx, | 
 |                                      const LV_MAP_COEFF_COST *txb_costs, | 
 |                                      int bwl, const uint8_t *levels, | 
 |                                      const int8_t *signs) { | 
 |   int cost = txb_costs->base_bob_cost[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; | 
 |   if (abs_qc != 0) { | 
 |     int idtx_sign_ctx = get_sign_ctx_skip(signs, levels, pos, bwl); | 
 |     cost += txb_costs->idtx_sign_cost[idtx_sign_ctx][sign]; | 
 |     if (abs_qc > NUM_BASE_LEVELS) { | 
 |       int br_ctx = get_br_ctx_skip(levels, pos, bwl); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       int hr_level_avg = 0; | 
 |       int dummy_hr_level; | 
 |       cost += get_br_cost(abs_qc, txb_costs->lps_cost_skip[br_ctx], | 
 |                           hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |       cost += get_br_cost(abs_qc, txb_costs->lps_cost_skip[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | /* returns the coefficient encoding cost (level and sign) for non-first position | 
 |  * coeffs */ | 
 | static INLINE int get_coeff_cost_fsc(int is_first, int pos, tran_low_t abs_qc, | 
 |                                      int sign, int coeff_ctx, | 
 |                                      const LV_MAP_COEFF_COST *txb_costs, | 
 |                                      int bwl, const uint8_t *levels, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                      const int8_t *signs, int hr_level_avg, | 
 |                                      int *hr_level) { | 
 | #else | 
 |                                      const int8_t *signs) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   int cost = 0; | 
 |   if (is_first) { | 
 |     cost += txb_costs->base_bob_cost[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; | 
 |   } else { | 
 |     cost += txb_costs->idtx_base_cost[coeff_ctx][AOMMIN(abs_qc, 3)]; | 
 |   } | 
 |   if (abs_qc != 0) { | 
 |     int idtx_sign_ctx = get_sign_ctx_skip(signs, levels, pos, bwl); | 
 |     cost += txb_costs->idtx_sign_cost[idtx_sign_ctx][sign]; | 
 |   } | 
 |   if (abs_qc > NUM_BASE_LEVELS) { | 
 |     const int ctx = get_br_ctx_skip(levels, pos, bwl); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     cost += get_br_cost(abs_qc, txb_costs->lps_cost_skip[ctx], hr_level_avg, | 
 |                         hr_level); | 
 | #else | 
 |     cost += get_br_cost(abs_qc, txb_costs->lps_cost_skip[ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static INLINE int get_coeff_cost_eob(int ci, tran_low_t abs_qc, int sign, | 
 |                                      int coeff_ctx, int dc_sign_ctx, | 
 |                                      const LV_MAP_COEFF_COST *txb_costs, | 
 |                                      int bwl, TX_CLASS tx_class | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                      , | 
 |                                      int32_t *tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                      , | 
 |                                      int plane) { | 
 |   int cost = 0; | 
 |   const int row = ci >> bwl; | 
 |   const int col = ci - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   const int(*base_lf_eob_cost_ptr)[LF_BASE_SYMBOLS - 1] = | 
 |       plane > 0 ? txb_costs->base_lf_eob_cost_uv : txb_costs->base_lf_eob_cost; | 
 |   const int(*base_eob_cost_ptr)[3] = | 
 |       plane > 0 ? txb_costs->base_eob_cost_uv : txb_costs->base_eob_cost; | 
 |  | 
 |   cost += limits ? base_lf_eob_cost_ptr[coeff_ctx] | 
 |                                        [AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1) - 1] | 
 |                  : base_eob_cost_ptr[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; | 
 |   if (abs_qc != 0) { | 
 |     const int dc_ph_group = 0;  // PH disabled | 
 |     const bool dc_2dtx = (ci == 0); | 
 |     const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |     const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |     if (dc_2dtx || dc_hor || dc_ver) { | 
 |       if (plane == AOM_PLANE_V) | 
 |         cost += txb_costs->v_dc_sign_cost[tmp_sign[ci]][dc_sign_ctx][sign]; | 
 |       else | 
 |         cost += txb_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign]; | 
 |     } else { | 
 | #if CONFIG_CTX_V_AC_SIGN | 
 |       cost += av1_cost_literal(1); | 
 | #else | 
 |       if (plane == AOM_PLANE_V) | 
 |         cost += txb_costs->v_ac_sign_cost[tmp_sign[ci]][sign]; | 
 |       else | 
 |         cost += av1_cost_literal(1); | 
 | #endif  // CONFIG_CTX_V_AC_SIGN | 
 |     } | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           int br_ctx = get_br_ctx_lf_eob_chroma(ci, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           int hr_level_avg = 0; | 
 |           int dummy_hr_level; | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost_uv[br_ctx], | 
 |                                  hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost_uv[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           int br_ctx = 0; /* get_br_ctx_eob_chroma */ | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           int hr_level_avg = 0; | 
 |           int dummy_hr_level; | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost_uv[br_ctx], | 
 |                               hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost_uv[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           int br_ctx = get_br_ctx_lf_eob(ci, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           int hr_level_avg = 0; | 
 |           int dummy_hr_level; | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost[br_ctx], | 
 |                                  hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           int br_ctx = 0; /* get_br_ctx_eob */ | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           int hr_level_avg = 0; | 
 |           int dummy_hr_level; | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx], hr_level_avg, | 
 |                               &dummy_hr_level); | 
 | #else | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static INLINE int get_coeff_cost_general( | 
 |     int is_last, int ci, tran_low_t abs_qc, int sign, int coeff_ctx, | 
 |     int dc_sign_ctx, const LV_MAP_COEFF_COST *txb_costs, int bwl, | 
 |     TX_CLASS tx_class, const uint8_t *levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 |     int32_t *tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int plane, int limits, int hr_level_avg, int *hr_level) { | 
 | #else | 
 |     int plane, int limits) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   int cost = 0; | 
 |   if (is_last) { | 
 |     const int(*base_lf_eob_cost_ptr)[LF_BASE_SYMBOLS - 1] = | 
 |         plane > 0 ? txb_costs->base_lf_eob_cost_uv | 
 |                   : txb_costs->base_lf_eob_cost; | 
 |     const int(*base_eob_cost_ptr)[3] = | 
 |         plane > 0 ? txb_costs->base_eob_cost_uv : txb_costs->base_eob_cost; | 
 |  | 
 |     cost += limits | 
 |                 ? base_lf_eob_cost_ptr[coeff_ctx] | 
 |                                       [AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1) - 1] | 
 |                 : base_eob_cost_ptr[coeff_ctx][AOMMIN(abs_qc, 3) - 1]; | 
 |   } else { | 
 | #if CONFIG_TCQ | 
 |     const int(*base_lf_cost_ptr)[TCQ_CTXS][LF_BASE_SYMBOLS * 2] = | 
 |         plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |     const int(*base_cost_ptr)[TCQ_CTXS][8] = | 
 |         plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 |     cost += limits ? base_lf_cost_ptr[coeff_ctx][0] | 
 |                                      [AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1)] | 
 |                    : base_cost_ptr[coeff_ctx][0][AOMMIN(abs_qc, 3)]; | 
 | #else | 
 |     const int(*base_lf_cost_ptr)[LF_BASE_SYMBOLS * 2] = | 
 |         plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |     const int(*base_cost_ptr)[8] = | 
 |         plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 |     cost += | 
 |         limits | 
 |             ? base_lf_cost_ptr[coeff_ctx][AOMMIN(abs_qc, LF_BASE_SYMBOLS - 1)] | 
 |             : base_cost_ptr[coeff_ctx][AOMMIN(abs_qc, 3)]; | 
 | #endif  // CONFIG_TCQ | 
 |   } | 
 |   if (abs_qc != 0) { | 
 |     const int dc_ph_group = 0;  // PH disabled | 
 |     const int row = ci >> bwl; | 
 |     const int col = ci - (row << bwl); | 
 |     const bool dc_2dtx = (ci == 0); | 
 |     const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |     const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |     if (dc_2dtx || dc_hor || dc_ver) { | 
 |       if (plane == AOM_PLANE_V) | 
 |         cost += txb_costs->v_dc_sign_cost[tmp_sign[ci]][dc_sign_ctx][sign]; | 
 |       else | 
 |         cost += txb_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign]; | 
 |     } else { | 
 | #if CONFIG_CTX_V_AC_SIGN | 
 |       cost += av1_cost_literal(1); | 
 | #else | 
 |       if (plane == AOM_PLANE_V) | 
 |         cost += txb_costs->v_ac_sign_cost[tmp_sign[ci]][sign]; | 
 |       else | 
 |         cost += av1_cost_literal(1); | 
 | #endif  // CONFIG_CTX_V_AC_SIGN | 
 |     } | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           int br_ctx; | 
 |           if (is_last) | 
 |             br_ctx = get_br_ctx_lf_eob_chroma(ci, tx_class); | 
 |           else | 
 |             br_ctx = get_br_lf_ctx_chroma(levels, ci, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost_uv[br_ctx], | 
 |                                  hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost_uv[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           int br_ctx; | 
 |           if (is_last) | 
 |             br_ctx = 0; /* get_br_ctx_eob_chroma */ | 
 |           else | 
 |             br_ctx = get_br_ctx_chroma(levels, ci, bwl, tx_class); | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost_uv[br_ctx], | 
 |                               hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost_uv[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         if (abs_qc > LF_NUM_BASE_LEVELS) { | 
 |           int br_ctx; | 
 |           if (is_last) | 
 |             br_ctx = get_br_ctx_lf_eob(ci, tx_class); | 
 |           else | 
 |             br_ctx = get_br_lf_ctx(levels, ci, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost[br_ctx], | 
 |                                  hr_level_avg, hr_level); | 
 | #else | 
 |           cost += get_br_lf_cost(abs_qc, txb_costs->lps_lf_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } else { | 
 |         if (abs_qc > NUM_BASE_LEVELS) { | 
 |           int br_ctx; | 
 |           if (is_last) | 
 |             br_ctx = 0; /* get_br_ctx_eob */ | 
 |           else | 
 |             br_ctx = get_br_ctx(levels, ci, bwl, tx_class); | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx], hr_level_avg, | 
 |                               hr_level); | 
 | #else | 
 |           cost += get_br_cost(abs_qc, txb_costs->lps_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   return cost; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE void get_qc_dqc_low(tran_low_t abs_qc, int sign, | 
 |                                             int dqv, int shift, | 
 |                                             tran_low_t *qc_low, | 
 |                                             tran_low_t *dqc_low) { | 
 |   tran_low_t abs_qc_low = abs_qc - 1; | 
 |   *qc_low = (-sign ^ abs_qc_low) + sign; | 
 |   assert((sign ? -abs_qc_low : abs_qc_low) == *qc_low); | 
 |  | 
 |   tran_low_t abs_dqc_low = | 
 |       (tran_low_t)(ROUND_POWER_OF_TWO_64((tran_high_t)abs_qc_low * dqv, | 
 |                                          QUANT_TABLE_BITS) >> | 
 |                    shift); | 
 |  | 
 |   *dqc_low = (-sign ^ abs_dqc_low) + sign; | 
 |   assert((sign ? -abs_dqc_low : abs_dqc_low) == *dqc_low); | 
 | } | 
 |  | 
 | /* optimizes the coefficient values for IDTX/FSC case by reducing level value or | 
 |  * zeroing */ | 
 | static INLINE void update_coeff_fsc_general( | 
 |     int *accu_rate, int64_t *accu_dist, int si, int bob, int bwl, int height, | 
 |     int64_t rdmult, int shift, const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, | 
 |     tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, int8_t *signs, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     const qm_val_t *iqmatrix, int *hr_level_avg) { | 
 | #else | 
 |     const qm_val_t *iqmatrix) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int dqv = get_dqv(dequant, scan[si], iqmatrix); | 
 |   const int pos = scan[si]; | 
 |   const tran_low_t qc = qcoeff[pos]; | 
 |   const int is_first = (si == bob); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 |   int hr_level_low = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int coeff_ctx = | 
 |       get_upper_levels_ctx_general(is_first, si, bwl, height, levels, pos); | 
 |   if (qc == 0) { | 
 |     if (is_first) { | 
 |       *accu_rate += txb_costs->base_bob_cost[coeff_ctx][0]; | 
 |     } else { | 
 |       *accu_rate += txb_costs->idtx_base_cost[coeff_ctx][0]; | 
 |     } | 
 |   } else { | 
 |     const int sign = (qc < 0) ? 1 : 0; | 
 |     const tran_low_t abs_qc = abs(qc); | 
 |     const tran_low_t tqc = tcoeff[pos]; | 
 |     const tran_low_t dqc = dqcoeff[pos]; | 
 |     const int64_t dist = get_coeff_dist(tqc, dqc, shift); | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     const int rate = get_coeff_cost_fsc(is_first, pos, abs_qc, sign, coeff_ctx, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                         txb_costs, bwl, levels, signs, | 
 |                                         *hr_level_avg, &hr_level); | 
 | #else | 
 |                                         txb_costs, bwl, levels, signs); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |     const int64_t rd = RDCOST(rdmult, rate, dist); | 
 |     tran_low_t qc_low, dqc_low; | 
 |     tran_low_t abs_qc_low; | 
 |     int64_t dist_low, rd_low; | 
 |     int rate_low; | 
 |     if (abs_qc == 1) { | 
 |       abs_qc_low = qc_low = dqc_low = 0; | 
 |       dist_low = dist0; | 
 |       if (is_first) { | 
 |         rate_low = txb_costs->base_bob_cost[coeff_ctx][0]; | 
 |       } else { | 
 |         rate_low = txb_costs->idtx_base_cost[coeff_ctx][0]; | 
 |       } | 
 |     } else { | 
 |       get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); | 
 |       abs_qc_low = abs_qc - 1; | 
 |       dist_low = get_coeff_dist(tqc, dqc_low, shift); | 
 |       rate_low = get_coeff_cost_fsc(is_first, pos, abs_qc_low, sign, coeff_ctx, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                     txb_costs, bwl, levels, signs, | 
 |                                     *hr_level_avg, &hr_level_low); | 
 | #else | 
 |                                     txb_costs, bwl, levels, signs); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } | 
 |     rd_low = RDCOST(rdmult, rate_low, dist_low); | 
 |     if (rd_low < rd) { | 
 |       qcoeff[pos] = qc_low; | 
 |       dqcoeff[pos] = dqc_low; | 
 |       levels[get_padded_idx_left(pos, bwl)] = AOMMIN(abs_qc_low, INT8_MAX); | 
 |       *accu_rate += rate_low; | 
 |       *accu_dist += dist_low - dist0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = (*hr_level_avg + hr_level_low) >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } else { | 
 |       *accu_rate += rate; | 
 |       *accu_dist += dist - dist0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | static INLINE void update_coeff_general( | 
 |     int *accu_rate, int64_t *accu_dist, int si, int eob, TX_CLASS tx_class, | 
 |     int bwl, int height, int64_t rdmult, int shift, int dc_sign_ctx, | 
 |     const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, | 
 |     tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, | 
 |     const qm_val_t *iqmatrix | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 |     int32_t *tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int plane, coeff_info *coef_info, bool enable_parity_hiding, | 
 |     int *hr_level_avg) { | 
 | #else | 
 |     int plane, coeff_info *coef_info, bool enable_parity_hiding) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |   const int dqv = get_dqv(dequant, scan[si], iqmatrix); | 
 |   const int ci = scan[si]; | 
 |   const tran_low_t qc = qcoeff[ci]; | 
 |   const int is_last = si == (eob - 1); | 
 |   const int coeff_ctx = get_lower_levels_ctx_general( | 
 |       is_last, si, bwl, height, levels, ci, tx_class, plane); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 |   int hr_level_low = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 | #if CONFIG_TCQ | 
 |   const int(*base_lf_cost_ptr)[TCQ_CTXS][LF_BASE_SYMBOLS * 2] = | 
 |       plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |   const int(*base_cost_ptr)[TCQ_CTXS][8] = | 
 |       plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 | #else | 
 |   const int(*base_lf_cost_ptr)[LF_BASE_SYMBOLS * 2] = | 
 |       plane > 0 ? txb_costs->base_lf_cost_uv : txb_costs->base_lf_cost; | 
 |   const int(*base_cost_ptr)[8] = | 
 |       plane > 0 ? txb_costs->base_cost_uv : txb_costs->base_cost; | 
 | #endif  // CONFIG_TCQ | 
 |   const int row = ci >> bwl; | 
 |   const int col = ci - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   if (qc == 0) { | 
 | #if CONFIG_TCQ | 
 |     *accu_rate += limits ? base_lf_cost_ptr[coeff_ctx][0][0] | 
 |                          : base_cost_ptr[coeff_ctx][0][0]; | 
 | #else | 
 |     *accu_rate += | 
 |         limits ? base_lf_cost_ptr[coeff_ctx][0] : base_cost_ptr[coeff_ctx][0]; | 
 | #endif  // CONFIG_TCQ | 
 |   } else { | 
 |     const int sign = (qc < 0) ? 1 : 0; | 
 |     const tran_low_t abs_qc = abs(qc); | 
 |     const tran_low_t tqc = tcoeff[ci]; | 
 |     const tran_low_t dqc = dqcoeff[ci]; | 
 |     const int64_t dist = get_coeff_dist(tqc, dqc, shift); | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     const int rate = | 
 |         get_coeff_cost_general(is_last, ci, abs_qc, sign, coeff_ctx, | 
 |                                dc_sign_ctx, txb_costs, bwl, tx_class, levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                , | 
 |                                tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                plane, limits, *hr_level_avg, &hr_level); | 
 | #else | 
 |                                plane, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     const int64_t rd = RDCOST(rdmult, rate, dist); | 
 |  | 
 |     tran_low_t qc_low, dqc_low; | 
 |     tran_low_t abs_qc_low; | 
 |     int64_t dist_low, rd_low; | 
 |     int rate_low; | 
 |     if (abs_qc == 1) { | 
 |       abs_qc_low = qc_low = dqc_low = 0; | 
 |       dist_low = dist0; | 
 | #if CONFIG_TCQ | 
 |       rate_low = limits ? base_lf_cost_ptr[coeff_ctx][0][0] | 
 |                         : base_cost_ptr[coeff_ctx][0][0]; | 
 | #else | 
 |       rate_low = | 
 |           limits ? base_lf_cost_ptr[coeff_ctx][0] : base_cost_ptr[coeff_ctx][0]; | 
 | #endif  // CONFIG_TCQ | 
 |     } else { | 
 |       get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); | 
 |       abs_qc_low = abs_qc - 1; | 
 |       dist_low = get_coeff_dist(tqc, dqc_low, shift); | 
 |       rate_low = | 
 |           get_coeff_cost_general(is_last, ci, abs_qc_low, sign, coeff_ctx, | 
 |                                  dc_sign_ctx, txb_costs, bwl, tx_class, levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 |                                  tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                  plane, limits, *hr_level_avg, &hr_level_low); | 
 | #else | 
 |                                  plane, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } | 
 |  | 
 |     rd_low = RDCOST(rdmult, rate_low, dist_low); | 
 |     if (rd_low < rd) { | 
 |       qcoeff[ci] = qc_low; | 
 |       dqcoeff[ci] = dqc_low; | 
 |       levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, UINT8_MAX); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = (*hr_level_avg + hr_level_low) >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       *accu_rate += rate_low; | 
 |       *accu_dist += dist_low - dist0; | 
 |       if (enable_parity_hiding) | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqc, rd_low, rd, rate_low, rate, | 
 |                        false, coef_info, si); | 
 |     } else { | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       *accu_rate += rate; | 
 |       *accu_dist += dist - dist0; | 
 |       if (enable_parity_hiding) | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqc, rd_low, rd, rate_low, rate, | 
 |                        true, coef_info, si); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE void update_coeff_simple( | 
 |     int *accu_rate, int si, int eob, TX_CLASS tx_class, int bwl, int64_t rdmult, | 
 |     int shift, const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, | 
 |     tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, | 
 |     const qm_val_t *iqmatrix, coeff_info *coef_info, bool enable_parity_hiding, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int plane, int *hr_level_avg) { | 
 | #else | 
 |     int plane) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int dqv = get_dqv(dequant, scan[si], iqmatrix); | 
 |   (void)eob; | 
 |   // this simple version assumes the coeff's scan_idx is not DC (scan_idx != 0) | 
 |   // and not the last (scan_idx != eob - 1) | 
 |   assert(si != eob - 1); | 
 |   assert(si > 0); | 
 |   const int ci = scan[si]; | 
 |   const tran_low_t qc = qcoeff[ci]; | 
 |   const int row = ci >> bwl; | 
 |   const int col = ci - (row << bwl); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   int coeff_ctx = 0; | 
 |   if (plane > 0) { | 
 |     if (limits) { | 
 |       coeff_ctx = | 
 |           get_lower_levels_lf_ctx_chroma(levels, ci, bwl, tx_class, plane); | 
 |     } else { | 
 |       coeff_ctx = get_lower_levels_ctx_chroma(levels, ci, bwl, tx_class, plane); | 
 |     } | 
 |   } else { | 
 |     if (limits) { | 
 |       coeff_ctx = get_lower_levels_lf_ctx(levels, ci, bwl, tx_class); | 
 |     } else { | 
 |       coeff_ctx = get_lower_levels_ctx(levels, ci, bwl, tx_class, plane); | 
 |     } | 
 |   } | 
 |   if (qc == 0) { | 
 | #if CONFIG_TCQ | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost_uv[coeff_ctx][0][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost_uv[coeff_ctx][0][0]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost[coeff_ctx][0][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost[coeff_ctx][0][0]; | 
 |       } | 
 |     } | 
 | #else | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost_uv[coeff_ctx][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost_uv[coeff_ctx][0]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost[coeff_ctx][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost[coeff_ctx][0]; | 
 |       } | 
 |     } | 
 | #endif  // CONFIG_TCQ | 
 |   } else { | 
 |     const tran_low_t abs_qc = abs(qc); | 
 |     const tran_low_t abs_tqc = abs(tcoeff[ci]); | 
 |     const tran_low_t abs_dqc = abs(dqcoeff[ci]); | 
 |     int rate_low = 0; | 
 |     const int rate = get_two_coeff_cost_simple( | 
 |         plane, ci, abs_qc, coeff_ctx, txb_costs, bwl, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |         tx_class, levels, &rate_low, limits, *hr_level_avg, &hr_level); | 
 | #else | 
 |         tx_class, levels, &rate_low, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |     if (abs_dqc < abs_tqc) { | 
 |       *accu_rate += rate; | 
 |       return; | 
 |     } | 
 |  | 
 |     const int64_t dist = get_coeff_dist(abs_tqc, abs_dqc, shift); | 
 |     const int64_t rd = RDCOST(rdmult, rate, dist); | 
 |  | 
 |     const tran_low_t abs_qc_low = abs_qc - 1; | 
 |     const tran_low_t abs_dqc_low = | 
 |         (tran_low_t)ROUND_POWER_OF_TWO_64((tran_high_t)abs_qc_low * dqv, | 
 |                                           QUANT_TABLE_BITS) >> | 
 |         shift; | 
 |     const int64_t dist_low = get_coeff_dist(abs_tqc, abs_dqc_low, shift); | 
 |     const int64_t rd_low = RDCOST(rdmult, rate_low, dist_low); | 
 |  | 
 |     if (rd_low < rd) { | 
 |       tran_low_t qc_low = qc < 0 ? -abs_qc_low : abs_qc_low; | 
 |       tran_low_t dqc_low = qc < 0 ? -abs_dqc_low : abs_dqc_low; | 
 |       if (enable_parity_hiding) | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqcoeff[ci], rd_low, rd, rate_low, | 
 |                        rate, false, coef_info, si); | 
 |       qcoeff[ci] = qc_low; | 
 |       dqcoeff[ci] = dqc_low; | 
 |       levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, UINT8_MAX); | 
 |       *accu_rate += rate_low; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       if (hr_level > 0) hr_level--; | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } else { | 
 |       *accu_rate += rate; | 
 |       tran_low_t qc_low = qc < 0 ? -abs_qc_low : abs_qc_low; | 
 |       tran_low_t dqc_low = qc < 0 ? -abs_dqc_low : abs_dqc_low; | 
 |       if (enable_parity_hiding) | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqcoeff[ci], rd_low, rd, rate_low, | 
 |                        rate, true, coef_info, si); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 | #endif  // | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE void update_coeff_bob( | 
 |     int *accu_rate, int64_t *accu_dist, int *bob_code, int *eob, int *nz_num, | 
 |     int *nz_ci, int si, int bwl, int height, int64_t rdmult, int shift, | 
 |     const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_EOB_COST *txb_eob_costs, const LV_MAP_COEFF_COST *txb_costs, | 
 |     const tran_low_t *tcoeff, tran_low_t *qcoeff, tran_low_t *dqcoeff, | 
 |     uint8_t *levels, int8_t *signs, int sharpness, const qm_val_t *iqmatrix, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     const TX_SIZE tx_size, int is_inter, int *hr_level_avg) { | 
 | #else | 
 |     const TX_SIZE tx_size, int is_inter) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int dqv = get_dqv(dequant, scan[si], iqmatrix); | 
 |   const int pos = scan[si]; | 
 |   const tran_low_t qc = qcoeff[pos]; | 
 |   const int coeff_ctx = get_upper_levels_ctx_2d(levels, pos, bwl); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 |   int hr_level_low = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   if (qc == 0) { | 
 |     *accu_rate += txb_costs->idtx_base_cost[coeff_ctx][0]; | 
 |   } else { | 
 |     int lower_level = 0; | 
 |     const tran_low_t abs_qc = abs(qc); | 
 |     const tran_low_t tqc = tcoeff[pos]; | 
 |     const tran_low_t dqc = dqcoeff[pos]; | 
 |     const int sign = (qc < 0) ? 1 : 0; | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     int64_t dist = get_coeff_dist(tqc, dqc, shift) - dist0; | 
 |     int rate = get_coeff_cost_fsc(0, pos, abs_qc, sign, coeff_ctx, txb_costs, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                   bwl, levels, signs, *hr_level_avg, &hr_level); | 
 | #else | 
 |                                   bwl, levels, signs); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     int64_t rd = RDCOST(rdmult, *accu_rate + rate, *accu_dist + dist); | 
 |  | 
 |     tran_low_t qc_low, dqc_low; | 
 |     tran_low_t abs_qc_low; | 
 |     int64_t dist_low, rd_low; | 
 |     int rate_low; | 
 |     if (abs_qc == 1) { | 
 |       abs_qc_low = 0; | 
 |       dqc_low = qc_low = 0; | 
 |       dist_low = 0; | 
 |       rate_low = txb_costs->idtx_base_cost[coeff_ctx][0]; | 
 |       rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist); | 
 |     } else { | 
 |       get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); | 
 |       abs_qc_low = abs_qc - 1; | 
 |       dist_low = get_coeff_dist(tqc, dqc_low, shift) - dist0; | 
 |       rate_low = get_coeff_cost_fsc(0, pos, abs_qc_low, sign, coeff_ctx, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                     txb_costs, bwl, levels, signs, | 
 |                                     *hr_level_avg, &hr_level); | 
 | #else | 
 |                                     txb_costs, bwl, levels, signs); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist + dist_low); | 
 |     } | 
 |     int lower_level_new_bob = 0; | 
 |     const int new_bob = si; | 
 |     const int new_bob_code = av1_get_max_eob(tx_size) - new_bob; | 
 |     const int coeff_ctx_new_eob = get_lower_levels_ctx_bob(bwl, height, si); | 
 |     const int new_bob_cost = get_eob_cost(new_bob_code, txb_eob_costs, txb_costs | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                                           , | 
 |                                           is_inter | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |     ); | 
 |     int rate_coeff_bob = | 
 |         new_bob_cost + get_coeff_cost_bob(pos, abs_qc, sign, coeff_ctx_new_eob, | 
 |                                           txb_costs, bwl, levels, signs); | 
 |     int64_t dist_new_bob = dist; | 
 |     int64_t rd_new_bob = RDCOST(rdmult, rate_coeff_bob, dist_new_bob); | 
 |     if (abs_qc_low > 0) { | 
 |       const int rate_coeff_bob_low = | 
 |           new_bob_cost + get_coeff_cost_bob(pos, abs_qc_low, sign, | 
 |                                             coeff_ctx_new_eob, txb_costs, bwl, | 
 |                                             levels, signs); | 
 |  | 
 |       const int64_t dist_new_bob_low = dist_low; | 
 |       const int64_t rd_new_bob_low = | 
 |           RDCOST(rdmult, rate_coeff_bob_low, dist_new_bob_low); | 
 |       if (rd_new_bob_low < rd_new_bob) { | 
 |         lower_level_new_bob = 1; | 
 |         rd_new_bob = rd_new_bob_low; | 
 |         rate_coeff_bob = rate_coeff_bob_low; | 
 |         dist_new_bob = dist_new_bob_low; | 
 |       } | 
 |     } | 
 |     if (rd_low < rd) { | 
 |       lower_level = 1; | 
 |       rd = rd_low; | 
 |       rate = rate_low; | 
 |       dist = dist_low; | 
 |     } | 
 |     if (sharpness == 0 && rd_new_bob < rd) { | 
 |       for (int ni = 0; ni < *nz_num; ++ni) { | 
 |         int last_ci = nz_ci[ni]; | 
 |         levels[get_padded_idx_left(last_ci, bwl)] = 0; | 
 |         qcoeff[last_ci] = 0; | 
 |         dqcoeff[last_ci] = 0; | 
 |       } | 
 |       *bob_code = new_bob_code; | 
 |       // This means the FP is at the latest element. | 
 |       // Set eob = 0 | 
 |       if (new_bob_code == 0) *eob = 0; | 
 |       *nz_num = 0; | 
 |       *accu_rate = rate_coeff_bob; | 
 |       *accu_dist = dist_new_bob; | 
 |       lower_level = lower_level_new_bob; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } else { | 
 |       *accu_rate += rate; | 
 |       *accu_dist += dist; | 
 |     } | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     if (lower_level) { | 
 |       *hr_level_avg = (*hr_level_avg + hr_level_low) >> 1; | 
 |     } else { | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 |     } | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |     if (lower_level) { | 
 |       qcoeff[pos] = qc_low; | 
 |       dqcoeff[pos] = dqc_low; | 
 |       levels[get_padded_idx_left(pos, bwl)] = AOMMIN(abs_qc_low, INT8_MAX); | 
 |     } | 
 |     if (qcoeff[pos]) { | 
 |       nz_ci[*nz_num] = pos; | 
 |       ++*nz_num; | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | // This function iterates over the coefficients in reverse scan order (except DC | 
 | // (scan_idx != 0) and the last (scan_idx != eob - 1)) and decides on lowering | 
 | // its level based on rate-distortion cost. | 
 | static AOM_FORCE_INLINE void update_coeff_simple_facade( | 
 |     int *accu_rate, int *si, int eob, TX_CLASS tx_class, int bwl, | 
 |     int64_t rdmult, int shift, const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_COEFF_COST *txb_costs, const tran_low_t *tcoeff, | 
 |     tran_low_t *qcoeff, tran_low_t *dqcoeff, uint8_t *levels, | 
 |     const qm_val_t *iqmatrix, coeff_info *coef_info, bool enable_parity_hiding, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int plane, int *hr_level_avg) { | 
 | #else | 
 |     int plane) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   for (; *si >= 1; --*si) { | 
 |     update_coeff_simple(accu_rate, *si, eob, tx_class, bwl, rdmult, shift, | 
 |                         dequant, scan, txb_costs, tcoeff, qcoeff, dqcoeff, | 
 |                         levels, iqmatrix, coef_info, enable_parity_hiding, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                         plane, hr_level_avg); | 
 | #else | 
 |                         plane); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE void update_coeff_eob( | 
 |     int *accu_rate, int64_t *accu_dist, int *eob, int *nz_num, int *nz_ci, | 
 |     int si, TX_SIZE tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |     int is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |     TX_CLASS tx_class, int dc_sign_ctx, int64_t rdmult, int shift, | 
 |     const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_EOB_COST *txb_eob_costs, const LV_MAP_COEFF_COST *txb_costs, | 
 |     const tran_low_t *tcoeff, tran_low_t *qcoeff, tran_low_t *dqcoeff, | 
 |     uint8_t *levels, int sharpness, const qm_val_t *iqmatrix | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 |     int32_t *tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int plane, coeff_info *coef_info, bool enable_parity_hiding, | 
 |     int *hr_level_avg) { | 
 | #else | 
 |     int plane, coeff_info *coef_info, bool enable_parity_hiding) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   const int dqv = get_dqv(dequant, scan[si], iqmatrix); | 
 |   assert(si != *eob - 1); | 
 |   const int ci = scan[si]; | 
 |   const tran_low_t qc = qcoeff[ci]; | 
 |   const int row = ci >> bwl; | 
 |   const int col = ci - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, plane); | 
 |   int coeff_ctx = 0; | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level = 0; | 
 |   int hr_level_low = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   if (plane > 0) { | 
 |     if (limits) { | 
 |       coeff_ctx = | 
 |           get_lower_levels_lf_ctx_chroma(levels, ci, bwl, tx_class, plane); | 
 |     } else { | 
 |       coeff_ctx = get_lower_levels_ctx_chroma(levels, ci, bwl, tx_class, plane); | 
 |     } | 
 |   } else { | 
 |     if (limits) { | 
 |       coeff_ctx = get_lower_levels_lf_ctx(levels, ci, bwl, tx_class); | 
 |     } else { | 
 |       coeff_ctx = get_lower_levels_ctx(levels, ci, bwl, tx_class, plane); | 
 |     } | 
 |   } | 
 |   if (qc == 0) { | 
 | #if CONFIG_TCQ | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost_uv[coeff_ctx][0][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost_uv[coeff_ctx][0][0]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost[coeff_ctx][0][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost[coeff_ctx][0][0]; | 
 |       } | 
 |     } | 
 | #else | 
 |     if (plane > 0) { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost_uv[coeff_ctx][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost_uv[coeff_ctx][0]; | 
 |       } | 
 |     } else { | 
 |       if (limits) { | 
 |         *accu_rate += txb_costs->base_lf_cost[coeff_ctx][0]; | 
 |       } else { | 
 |         *accu_rate += txb_costs->base_cost[coeff_ctx][0]; | 
 |       } | 
 |     } | 
 | #endif  // CONFIG_TCQ | 
 |   } else { | 
 |     int64_t rd_eob_low = INT64_MAX >> 1; | 
 |     int rate_eob_low = INT32_MAX >> 1; | 
 |     int lower_level = 0; | 
 |     const tran_low_t abs_qc = abs(qc); | 
 |     const tran_low_t tqc = tcoeff[ci]; | 
 |     const tran_low_t dqc = dqcoeff[ci]; | 
 |     const int sign = (qc < 0) ? 1 : 0; | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     int64_t dist = get_coeff_dist(tqc, dqc, shift) - dist0; | 
 |     int rate = | 
 |         get_coeff_cost_general(0, ci, abs_qc, sign, coeff_ctx, dc_sign_ctx, | 
 |                                txb_costs, bwl, tx_class, levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                , | 
 |                                tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                plane, limits, *hr_level_avg, &hr_level); | 
 | #else | 
 |                                plane, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     int64_t rd = RDCOST(rdmult, *accu_rate + rate, *accu_dist + dist); | 
 |  | 
 |     tran_low_t qc_low, dqc_low; | 
 |     tran_low_t abs_qc_low; | 
 |     int64_t dist_low, rd_low; | 
 |     int rate_low; | 
 |     if (abs_qc == 1) { | 
 |       abs_qc_low = 0; | 
 |       dqc_low = qc_low = 0; | 
 |       dist_low = 0; | 
 | #if CONFIG_TCQ | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           rate_low = txb_costs->base_lf_cost_uv[coeff_ctx][0][0]; | 
 |         } else { | 
 |           rate_low = txb_costs->base_cost_uv[coeff_ctx][0][0]; | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           rate_low = txb_costs->base_lf_cost[coeff_ctx][0][0]; | 
 |         } else { | 
 |           rate_low = txb_costs->base_cost[coeff_ctx][0][0]; | 
 |         } | 
 |       } | 
 | #else | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           rate_low = txb_costs->base_lf_cost_uv[coeff_ctx][0]; | 
 |         } else { | 
 |           rate_low = txb_costs->base_cost_uv[coeff_ctx][0]; | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           rate_low = txb_costs->base_lf_cost[coeff_ctx][0]; | 
 |         } else { | 
 |           rate_low = txb_costs->base_cost[coeff_ctx][0]; | 
 |         } | 
 |       } | 
 | #endif  // CONFIG_TCQ | 
 |       rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist); | 
 |     } else { | 
 |       get_qc_dqc_low(abs_qc, sign, dqv, shift, &qc_low, &dqc_low); | 
 |       abs_qc_low = abs_qc - 1; | 
 |       dist_low = get_coeff_dist(tqc, dqc_low, shift) - dist0; | 
 |       rate_low = | 
 |           get_coeff_cost_general(0, ci, abs_qc_low, sign, coeff_ctx, | 
 |                                  dc_sign_ctx, txb_costs, bwl, tx_class, levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 |                                  tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                  plane, limits, *hr_level_avg, &hr_level_low); | 
 | #else | 
 |                                  plane, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       rd_low = RDCOST(rdmult, *accu_rate + rate_low, *accu_dist + dist_low); | 
 |     } | 
 |     int rate_up_backup = rate; | 
 |     int64_t rd_up_backup = rd; | 
 |     int lower_level_new_eob = 0; | 
 |     const int new_eob = si + 1; | 
 |     const int coeff_ctx_new_eob = get_lower_levels_ctx_eob(bwl, height, si); | 
 |     const int new_eob_cost = | 
 | #if CONFIG_EOB_POS_LUMA | 
 |         get_eob_cost(new_eob, txb_eob_costs, txb_costs, is_inter); | 
 | #else | 
 |         get_eob_cost(new_eob, txb_eob_costs, txb_costs); | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |     int rate_coeff_eob = | 
 |         new_eob_cost + get_coeff_cost_eob(ci, abs_qc, sign, coeff_ctx_new_eob, | 
 |                                           dc_sign_ctx, txb_costs, bwl, tx_class | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                           , | 
 |                                           tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                           , | 
 |                                           plane); | 
 |     int64_t dist_new_eob = dist; | 
 |     int64_t rd_new_eob = RDCOST(rdmult, rate_coeff_eob, dist_new_eob); | 
 |     int rateeobup = rate_coeff_eob; | 
 |     int64_t rdeobup = rd_new_eob; | 
 |     if (abs_qc_low > 0) { | 
 |       const int rate_coeff_eob_low = | 
 |           new_eob_cost + get_coeff_cost_eob(ci, abs_qc_low, sign, | 
 |                                             coeff_ctx_new_eob, dc_sign_ctx, | 
 |                                             txb_costs, bwl, tx_class | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                             , | 
 |                                             tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                             , | 
 |                                             plane); | 
 |       const int64_t dist_new_eob_low = dist_low; | 
 |       const int64_t rd_new_eob_low = | 
 |           RDCOST(rdmult, rate_coeff_eob_low, dist_new_eob_low); | 
 |       rate_eob_low = rate_coeff_eob_low; | 
 |       rd_eob_low = rd_new_eob_low; | 
 |       if (rd_new_eob_low < rd_new_eob) { | 
 |         lower_level_new_eob = 1; | 
 |         rd_new_eob = rd_new_eob_low; | 
 |         rate_coeff_eob = rate_coeff_eob_low; | 
 |         dist_new_eob = dist_new_eob_low; | 
 |       } | 
 |     } | 
 |  | 
 |     if (rd_low < rd) { | 
 |       lower_level = 1; | 
 |       rd = rd_low; | 
 |       rate = rate_low; | 
 |       dist = dist_low; | 
 |     } | 
 |  | 
 |     if (sharpness == 0 && rd_new_eob < rd) { | 
 |       for (int ni = 0; ni < *nz_num; ++ni) { | 
 |         int last_ci = nz_ci[ni]; | 
 |         levels[get_padded_idx(last_ci, bwl)] = 0; | 
 |         qcoeff[last_ci] = 0; | 
 |         dqcoeff[last_ci] = 0; | 
 |       } | 
 |       *eob = new_eob; | 
 |       *nz_num = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       *hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       *accu_rate = rate_coeff_eob; | 
 |       *accu_dist = dist_new_eob; | 
 |       lower_level = lower_level_new_eob; | 
 |       if (abs_qc > 1 && enable_parity_hiding) { | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqc, rd_eob_low, rdeobup, | 
 |                        rate_eob_low, rateeobup, !lower_level, coef_info, si); | 
 |       } | 
 |     } else { | 
 |       *accu_rate += rate; | 
 |       *accu_dist += dist; | 
 |       if (enable_parity_hiding) | 
 |         set_coeff_info(qc_low, dqc_low, qc, dqc, rd_low, rd_up_backup, rate_low, | 
 |                        rate_up_backup, !lower_level, coef_info, si); | 
 |     } | 
 |  | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     if (lower_level) { | 
 |       *hr_level_avg = (*hr_level_avg + hr_level_low) >> 1; | 
 |     } else { | 
 |       *hr_level_avg = (*hr_level_avg + hr_level) >> 1; | 
 |     } | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |     if (lower_level) { | 
 |       qcoeff[ci] = qc_low; | 
 |       dqcoeff[ci] = dqc_low; | 
 |       levels[get_padded_idx(ci, bwl)] = AOMMIN(abs_qc_low, UINT8_MAX); | 
 |     } | 
 |     if (qcoeff[ci]) { | 
 |       nz_ci[*nz_num] = ci; | 
 |       ++*nz_num; | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | // This function iterates over the coefficients in reverse scan order (except | 
 | // the last (scan_idx != eob - 1)) and updates the end-of-block (EOB) and | 
 | // coefficient values based on rate-distortion cost. | 
 | static AOM_FORCE_INLINE void update_coeff_eob_facade( | 
 |     int *accu_rate, int64_t *accu_dist, int *eob, int *nz_num, int *nz_ci, | 
 |     int *si, TX_SIZE tx_size, int is_inter, TX_CLASS tx_class, int dc_sign_ctx, | 
 |     int64_t rdmult, int shift, const int32_t *dequant, const int16_t *scan, | 
 |     const LV_MAP_EOB_COST *txb_eob_costs, const LV_MAP_COEFF_COST *txb_costs, | 
 |     const tran_low_t *tcoeff, tran_low_t *qcoeff, tran_low_t *dqcoeff, | 
 |     uint8_t *levels, int sharpness, const qm_val_t *iqmatrix, int32_t *tmp_sign, | 
 |     int plane, coeff_info *coef_info, bool enable_parity_hiding, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int max_nz_num, int *hr_level_avg) { | 
 | #else | 
 |     int max_nz_num) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 | #if !CONFIG_EOB_POS_LUMA | 
 |   (void)is_inter; | 
 | #endif  // !CONFIG_EOB_POS_LUMA | 
 | #if !CONFIG_CONTEXT_DERIVATION | 
 |   (void)tmp_sign; | 
 | #endif  // !CONFIG_CONTEXT_DERIVATION | 
 |   for (; *si >= 0 && *nz_num <= max_nz_num; --*si) { | 
 |     update_coeff_eob(accu_rate, accu_dist, eob, nz_num, nz_ci, *si, tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                      is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                      tx_class, dc_sign_ctx, rdmult, shift, dequant, scan, | 
 |                      txb_eob_costs, txb_costs, tcoeff, qcoeff, dqcoeff, levels, | 
 |                      sharpness, iqmatrix | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                      , | 
 |                      tmp_sign | 
 | #endif | 
 |                      , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                      plane, coef_info, enable_parity_hiding, hr_level_avg); | 
 | #else | 
 |                      plane, coef_info, enable_parity_hiding); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 | } | 
 |  | 
 | static INLINE void update_skip(int *accu_rate, int64_t accu_dist, int *eob, | 
 |                                int nz_num, int *nz_ci, int64_t rdmult, | 
 |                                int skip_cost, int non_skip_cost, | 
 |                                tran_low_t *qcoeff, tran_low_t *dqcoeff, | 
 |                                int sharpness) { | 
 |   const int64_t rd = RDCOST(rdmult, *accu_rate + non_skip_cost, accu_dist); | 
 |   const int64_t rd_new_eob = RDCOST(rdmult, skip_cost, 0); | 
 |   if (sharpness == 0 && rd_new_eob < rd) { | 
 |     for (int i = 0; i < nz_num; ++i) { | 
 |       const int ci = nz_ci[i]; | 
 |       qcoeff[ci] = 0; | 
 |       dqcoeff[ci] = 0; | 
 |       // no need to set up levels because this is the last step | 
 |       // levels[get_padded_idx(ci, bwl)] = 0; | 
 |     } | 
 |     *accu_rate = 0; | 
 |     *eob = 0; | 
 |   } | 
 | } | 
 |  | 
 | // This funtion returns the rate saving if the parity of current | 
 | // DC coefficient is hidden. | 
 | static AOM_FORCE_INLINE int rate_save(const LV_MAP_COEFF_COST *txb_costs, | 
 |                                       const LV_MAP_COEFF_COST *txb_costs_ph, | 
 |                                       tran_low_t level, int bwl, int pos, | 
 |                                       uint8_t *levels, int dc_sign_ctx, | 
 |                                       TX_CLASS tx_class, int *rate, int plane | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                       , | 
 |                                       int hr_level_avg | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 | ) { | 
 |   tran_low_t abslevel = abs(level), q_index = abslevel >> 1; | 
 |   int sign = level < 0; | 
 |   const int row = pos >> bwl; | 
 |   const int col = pos - (row << bwl); | 
 |   int limits = get_lf_limits(row, col, tx_class, 0); | 
 |   int coeff_ctx = 0; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int dummy_hr_level; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   if (limits) { | 
 |     coeff_ctx = get_lower_levels_lf_ctx(levels, pos, bwl, tx_class); | 
 |   } else { | 
 |     coeff_ctx = get_lower_levels_ctx(levels, pos, bwl, tx_class, plane); | 
 |   } | 
 |   *rate = get_coeff_cost_general(0, pos, abslevel, level < 0, coeff_ctx, | 
 |                                  dc_sign_ctx, txb_costs, bwl, tx_class, levels | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 |                                  0 | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                                  , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                                  0, limits, hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |                                  0, limits); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |   const int base_ctx_ph = get_base_ctx_ph(levels, pos, bwl, tx_class); | 
 |   int rate_ph = txb_costs_ph->base_ph_cost[base_ctx_ph][AOMMIN(q_index, 3)]; | 
 |   if (q_index > NUM_BASE_LEVELS) { | 
 |     int br_ctx = get_par_br_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     rate_ph += get_br_cost(q_index, txb_costs_ph->lps_ph_cost[br_ctx], | 
 |                            hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |     rate_ph += get_br_cost(q_index, txb_costs_ph->lps_ph_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |   const int dc_ph_group = 1;  // PH enabled | 
 |   if (abslevel) | 
 |     rate_ph += txb_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][sign]; | 
 |   return rate_ph - *rate; | 
 | } | 
 |  | 
 | typedef struct { | 
 |   int rate; | 
 |   int64_t cost; | 
 |   tran_low_t qcoeff; | 
 |   tran_low_t dqcoeff; | 
 |   int scan_idx; | 
 | } tune_cand; | 
 |  | 
 | // This funtion calculates the cost change if the parity of DC position | 
 | // is tuned and hidden. | 
 | static AOM_FORCE_INLINE void cost_hide_par( | 
 |     const tran_low_t qcoeff, const tran_low_t dqcoeff, const tran_low_t tcoeff, | 
 |     const int shift, const LV_MAP_COEFF_COST *txb_costs, const int pos, | 
 |     const LV_MAP_COEFF_COST *txb_costs_ph, int dc_sign_ctx, TX_CLASS tx_class, | 
 |     uint8_t *levels, const int bwl, const int64_t rdmult, | 
 |     const int32_t *dequant, const qm_val_t *iqmatrix, tune_cand *t_cand, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     int rate_cur, int hr_level_avg) { | 
 | #else | 
 |     int rate_cur) { | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int dqv = get_dqv(dequant, pos, iqmatrix); | 
 |   tran_low_t abslevel = abs(qcoeff), abstqc = abs(tcoeff); | 
 |   int64_t dist = get_coeff_dist(tcoeff, dqcoeff, shift); | 
 |   int rate = rate_cur; | 
 |   int64_t cost = RDCOST(rdmult, rate, dist); | 
 |  | 
 |   tran_low_t abslevel_cand = | 
 |       abs(dqcoeff) > abstqc ? abslevel - 1 : abslevel + 1; | 
 |   tran_low_t absdqc_cand = | 
 |       (tran_low_t)(ROUND_POWER_OF_TWO_64((tran_high_t)abslevel_cand * dqv, | 
 |                                          QUANT_TABLE_BITS) >> | 
 |                    shift); | 
 |   int64_t dist_cand = get_coeff_dist(abs(tcoeff), absdqc_cand, shift); | 
 |   int q_index = abslevel_cand >> 1; | 
 |   int rate_cand = txb_costs_ph->base_ph_cost[get_base_ctx_ph( | 
 |       levels, pos, bwl, tx_class)][AOMMIN(q_index, 3)]; | 
 |   if (abslevel_cand) { | 
 |     const int dc_ph_group = 1;  // PH enabled | 
 |     rate_cand += txb_costs->dc_sign_cost[dc_ph_group][dc_sign_ctx][tcoeff < 0]; | 
 |     if (q_index > NUM_BASE_LEVELS) { | 
 |       int br_ctx = get_par_br_ctx(levels, pos, bwl, tx_class); | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       int dummy_hr_level; | 
 |       rate_cand += get_br_cost(q_index, txb_costs_ph->lps_ph_cost[br_ctx], | 
 |                                hr_level_avg, &dummy_hr_level); | 
 | #else | 
 |       rate_cand += get_br_cost(q_index, txb_costs_ph->lps_ph_cost[br_ctx]); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     } | 
 |   } | 
 |   int64_t cost_cand = RDCOST(rdmult, rate_cand, dist_cand); | 
 |   const int sign = tcoeff < 0 ? -1 : 1; | 
 |  | 
 |   t_cand->cost = cost_cand - cost; | 
 |   t_cand->qcoeff = abslevel_cand * sign; | 
 |   t_cand->dqcoeff = absdqc_cand * sign; | 
 |   t_cand->rate = rate_cand - rate; | 
 |   t_cand->scan_idx = 0; | 
 | } | 
 |  | 
 | // This function finds best candidate for tuning among non-DC | 
 | // positions when current region has PHTHRESH - 1 non-zero | 
 | // coefficients. | 
 | static AOM_FORCE_INLINE bool region_nz_minus( | 
 |     const int eob, tran_low_t *qcoeff, int ratesaving, const int16_t *scan, | 
 |     coeff_info *coef_info, tune_cand *t_cand, const int64_t rdmult) { | 
 |   int64_t cost = INT64_MAX >> 1; | 
 |   int find_si = -1; | 
 |   for (int scan_idx = eob - 1; scan_idx > 0; --scan_idx) { | 
 |     int blkpos = scan[scan_idx]; | 
 |     if (abs(qcoeff[blkpos]) == 0 && !coef_info[scan_idx].upround && | 
 |         coef_info[scan_idx].tunable)  // from 0 to 1 | 
 |     { | 
 |       if (coef_info[scan_idx].delta_cost < cost) { | 
 |         cost = coef_info[scan_idx].delta_cost; | 
 |         find_si = scan_idx; | 
 |       } | 
 |     } | 
 |   } | 
 |   if (find_si == -1) { | 
 |     return false; | 
 |   } | 
 |   t_cand->qcoeff = coef_info[find_si].qc; | 
 |   t_cand->dqcoeff = coef_info[find_si].dqc; | 
 |   t_cand->rate = coef_info[find_si].delta_rate + ratesaving; | 
 |   t_cand->cost = coef_info[find_si].delta_cost + RDCOST(rdmult, ratesaving, 0); | 
 |   t_cand->scan_idx = find_si; | 
 |   return true; | 
 | } | 
 |  | 
 | // This function finds best candidate for tuning among non-DC | 
 | // positions when current region has PHTHRESH non-zero coefficients. | 
 | static AOM_FORCE_INLINE bool region_nz_equal(const int eob, tran_low_t *qcoeff, | 
 |                                              const int ratesaving, | 
 |                                              const int16_t *scan, | 
 |                                              coeff_info *coef_info, | 
 |                                              tune_cand *t_cand, | 
 |                                              const int64_t rdmult) { | 
 |   int64_t cost = INT64_MAX >> 1, cost_up0 = INT64_MAX >> 1, | 
 |           cost_tune = INT64_MAX >> 1; | 
 |   int si = -1, si_up0 = -1, si_tune = -1; | 
 |   for (int scan_idx = eob - 1; scan_idx > 0; --scan_idx) { | 
 |     if (coef_info[scan_idx].tunable) { | 
 |       if (!(abs(qcoeff[scan[scan_idx]]) == 1 && coef_info[scan_idx].upround)) { | 
 |         if (coef_info[scan_idx].delta_cost < cost) { | 
 |           cost = coef_info[scan_idx].delta_cost; | 
 |           si = scan_idx; | 
 |         } | 
 |       } else  // from 1 to 0 | 
 |       { | 
 |         if (coef_info[scan_idx].delta_cost < cost_up0) { | 
 |           cost_up0 = coef_info[scan_idx].delta_cost; | 
 |           si_up0 = scan_idx; | 
 |         } | 
 |       } | 
 |     } | 
 |   } | 
 |   int64_t costsaving = RDCOST(rdmult, ratesaving, 0); | 
 |   if (cost + costsaving < cost_tune) { | 
 |     cost_tune = cost + costsaving; | 
 |     si_tune = si; | 
 |   } | 
 |   bool disable = false; | 
 |   if (cost_up0 < cost_tune)  // no extra saving for sig | 
 |   { | 
 |     si_tune = si_up0; | 
 |     cost_tune = cost_up0; | 
 |     disable = true; | 
 |   } | 
 |  | 
 |   // modify | 
 |   if (si_tune == -1)  // not find any tunable position. | 
 |   { | 
 |     return false; | 
 |   } else { | 
 |     t_cand->scan_idx = si_tune; | 
 |     t_cand->qcoeff = coef_info[si_tune].qc; | 
 |     t_cand->dqcoeff = coef_info[si_tune].dqc; | 
 |     t_cand->rate = coef_info[si_tune].delta_rate; | 
 |     t_cand->cost = cost_tune; | 
 |     if (!disable) { | 
 |       t_cand->rate += ratesaving; | 
 |     } | 
 |     return true; | 
 |   } | 
 | } | 
 |  | 
 | // This function finds best candidate for tuning among non-DC | 
 | // positions when current region has more than PHTHRESH non-zero | 
 | // coefficients. | 
 | static AOM_FORCE_INLINE bool region_nz_plus(const int eob, const int ratesaving, | 
 |                                             coeff_info *coef_info, | 
 |                                             tune_cand *t_cand, | 
 |                                             const int64_t rdmult) { | 
 |   int64_t cost = INT64_MAX >> 1; | 
 |   int find_si = -1; | 
 |   for (int scan_idx = eob - 1; scan_idx > 0; --scan_idx) { | 
 |     if (coef_info[scan_idx].tunable && coef_info[scan_idx].delta_cost < cost) { | 
 |       cost = coef_info[scan_idx].delta_cost; | 
 |       find_si = scan_idx; | 
 |     } | 
 |   } | 
 |  | 
 |   if (find_si == -1) { | 
 |     return false; | 
 |   } | 
 |   t_cand->scan_idx = find_si; | 
 |   t_cand->qcoeff = coef_info[find_si].qc; | 
 |   t_cand->dqcoeff = coef_info[find_si].dqc; | 
 |   t_cand->rate = coef_info[find_si].delta_rate + ratesaving; | 
 |   t_cand->cost = cost + RDCOST(rdmult, ratesaving, 0); | 
 |   return true; | 
 | } | 
 |  | 
 | static AOM_FORCE_INLINE bool parity_hide_tb( | 
 |     const int eob, const int16_t *scan, uint8_t *levels, const int bwl, | 
 |     const int64_t rdmult, const int shift, const LV_MAP_COEFF_COST *txb_costs, | 
 |     const LV_MAP_COEFF_COST *txb_costs_ph, const int32_t *dequant, | 
 |     const qm_val_t *iqmatrix, int dc_sign_ctx, const TX_CLASS tx_class, | 
 |     tran_low_t *qcoeff, tran_low_t *dqcoeff, const tran_low_t *tcoeff, | 
 |     coeff_info *coef_info, int *accu_rate, int plane | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |     , | 
 |     int hr_level_avg | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 | ) { | 
 |   int nzsbb = 0, sum_abs1 = 0; | 
 |   for (int scan_idx = eob - 1; scan_idx > 0; --scan_idx) { | 
 |     const int blkpos = scan[scan_idx]; | 
 |     if (qcoeff[blkpos]) { | 
 |       ++nzsbb; | 
 |       sum_abs1 += AOMMIN(abs(qcoeff[blkpos]), MAX_BASE_BR_RANGE); | 
 |     } | 
 |   } | 
 |   int hidepos = scan[0], rate_cur = 0; | 
 |   bool needtune = (qcoeff[hidepos] & 1) != (sum_abs1 & 1); | 
 |   if (nzsbb < PHTHRESH - 1 || | 
 |       (!needtune && nzsbb == PHTHRESH - 1))  // disable coef_info for this sbb | 
 |   { | 
 |     return false;  // not hide | 
 |   } | 
 |  | 
 |   const int ratesaving = | 
 |       rate_save(txb_costs, txb_costs_ph, qcoeff[hidepos], bwl, hidepos, levels, | 
 |                 dc_sign_ctx, tx_class, &rate_cur, plane | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                 , | 
 |                 hr_level_avg | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |       ); | 
 |  | 
 |   if (!needtune && nzsbb >= PHTHRESH) { | 
 |     *accu_rate += ratesaving; | 
 |     return true;  // hide | 
 |   } | 
 |  | 
 |   tune_cand t_cand_dc = { 0 }, t_cand_non_dc = { 0 }; | 
 |   t_cand_dc.cost = INT64_MAX; | 
 |   t_cand_non_dc.cost = INT64_MAX; | 
 |   // we change the quantized level's parity to check the rate change. | 
 |   if (nzsbb >= PHTHRESH) { | 
 |     cost_hide_par(qcoeff[hidepos], dqcoeff[hidepos], tcoeff[hidepos], shift, | 
 |                   txb_costs, hidepos, txb_costs_ph, dc_sign_ctx, tx_class, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                   levels, bwl, rdmult, dequant, iqmatrix, &t_cand_dc, rate_cur, | 
 |                   hr_level_avg); | 
 | #else | 
 |                   levels, bwl, rdmult, dequant, iqmatrix, &t_cand_dc, rate_cur); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |  | 
 |   // we change the level candidates to check the cost change. | 
 |   if (nzsbb == PHTHRESH - 1) { | 
 |     region_nz_minus(eob, qcoeff, ratesaving, scan, coef_info, &t_cand_non_dc, | 
 |                     rdmult); | 
 |   } | 
 |   if (nzsbb == PHTHRESH) { | 
 |     region_nz_equal(eob, qcoeff, ratesaving, scan, coef_info, &t_cand_non_dc, | 
 |                     rdmult); | 
 |   } | 
 |   if (nzsbb > PHTHRESH) { | 
 |     region_nz_plus(eob, ratesaving, coef_info, &t_cand_non_dc, rdmult); | 
 |   } | 
 |   tune_cand *best = | 
 |       t_cand_dc.cost < t_cand_non_dc.cost ? &t_cand_dc : &t_cand_non_dc; | 
 |  | 
 |   if (nzsbb == PHTHRESH - 1 && best->cost > 0) { | 
 |     assert(nzsbb == PHTHRESH - 1); | 
 |     return false; | 
 |   } else { | 
 |     int tune_pos = scan[best->scan_idx]; | 
 |     qcoeff[tune_pos] = best->qcoeff; | 
 |     dqcoeff[tune_pos] = best->dqcoeff; | 
 |     *accu_rate += best->rate; | 
 |     levels[get_padded_idx(tune_pos, bwl)] = | 
 |         AOMMIN(abs(best->qcoeff), UINT8_MAX); | 
 |  | 
 |     return true; | 
 |   } | 
 | } | 
 |  | 
 | /* | 
 |  Helper function to aid coefficient optimization over the quantized coefficient | 
 |  samples when the transform type is 2D IDTX. See av1_optimize_fsc(...). | 
 |  */ | 
 | int av1_optimize_fsc_block(const struct AV1_COMP *cpi, MACROBLOCK *x, int plane, | 
 |                            int block, TX_SIZE tx_size, TX_TYPE tx_type, | 
 |                            const TXB_CTX *const txb_ctx, int *rate_cost, | 
 |                            int sharpness) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   const SCAN_ORDER *scan_order = | 
 |       get_scan(tx_size, get_primary_tx_type(tx_type)); | 
 |   const int16_t *scan = scan_order->scan; | 
 |   const int shift = av1_get_tx_scale(tx_size); | 
 |   int eob = p->eobs[block]; | 
 |   int bob_code = p->bobs[block]; | 
 |   int bob = av1_get_max_eob(tx_size) - bob_code; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int32_t *dequant = p->dequant_QTX; | 
 |   const qm_val_t *iqmatrix = | 
 |       av1_get_iqmatrix(&cpi->common.quant_params, xd, plane, tx_size, tx_type); | 
 |   const int block_offset = BLOCK_OFFSET(block); | 
 |   tran_low_t *qcoeff = p->qcoeff + block_offset; | 
 |   tran_low_t *dqcoeff = p->dqcoeff + block_offset; | 
 |   const tran_low_t *tcoeff = p->coeff + block_offset; | 
 |   const CoeffCosts *coeff_costs = &x->coeff_costs; | 
 |   const AV1_COMMON *cm = &cpi->common; | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(&cpi->common, plane, tx_type, is_inter); | 
 |   const LV_MAP_COEFF_COST *txb_costs = | 
 |       &coeff_costs->coeff_costs[txs_ctx][plane_type]; | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   const LV_MAP_EOB_COST *txb_eob_costs = | 
 |       &coeff_costs->eob_costs[eob_multi_size][plane_type]; | 
 |   const int rshift = | 
 |       (sharpness + | 
 |        (cpi->oxcf.q_cfg.aq_mode == VARIANCE_AQ && mbmi->segment_id < 4 | 
 |             ? 7 - mbmi->segment_id | 
 |             : 2) + | 
 |        (cpi->oxcf.q_cfg.aq_mode != VARIANCE_AQ && | 
 |                 cpi->oxcf.q_cfg.deltaq_mode == DELTA_Q_PERCEPTUAL && | 
 |                 cm->delta_q_info.delta_q_present_flag && x->sb_energy_level < 0 | 
 |             ? (3 - x->sb_energy_level) | 
 |             : 0)); | 
 |   const int64_t rdmult = | 
 |       (((int64_t)x->rdmult * | 
 |         (plane_rd_mult[is_inter][plane_type] << (2 * (xd->bd - 8)))) + | 
 |        2) >> | 
 |       rshift; | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   int8_t signs_buf[TX_PAD_2D]; | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 |   int8_t *const signs = set_signs(signs_buf, width); | 
 |   av1_txb_init_levels_signs(qcoeff, width, height, levels_buf, signs_buf); | 
 |   int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   const int pred_mode_ctx = | 
 |       (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |   int non_skip_cost = txb_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][0]; | 
 |   int skip_cost = txb_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][1]; | 
 | #else | 
 |   int non_skip_cost = txb_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 |   int skip_cost = txb_costs->txb_skip_cost[txb_skip_ctx][1]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   const int bob_cost = get_eob_cost(bob_code, txb_eob_costs, txb_costs | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                                     , | 
 |                                     is_inter | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   ); | 
 |   int accu_rate = bob_cost; | 
 |   int64_t accu_dist = 0; | 
 |   int si = bob; | 
 |   const int ci = scan[si]; | 
 |   const tran_low_t qc = qcoeff[ci]; | 
 |   const tran_low_t abs_qc = abs(qc); | 
 |   const int sign = qc < 0; | 
 |   const int max_nz_num = 8; | 
 |   int nz_num = 1; | 
 |   int nz_ci[9] = { ci, 0, 0, 0, 0, 0, 0, 0, 0 }; | 
 |   if (abs_qc >= 2) { | 
 |     update_coeff_fsc_general(&accu_rate, &accu_dist, si, bob, bwl, height, | 
 |                              rdmult, shift, dequant, scan, txb_costs, tcoeff, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                              qcoeff, dqcoeff, levels, signs, iqmatrix, | 
 |                              &hr_level_avg); | 
 | #else | 
 |                              qcoeff, dqcoeff, levels, signs, iqmatrix); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     ++si; | 
 |   } else { | 
 |     assert(abs_qc == 1); | 
 |     const int coeff_ctx = get_lower_levels_ctx_bob(bwl, height, si); | 
 |     accu_rate += get_coeff_cost_bob(ci, abs_qc, sign, coeff_ctx, txb_costs, bwl, | 
 |                                     levels, signs); | 
 |     const tran_low_t tqc = tcoeff[ci]; | 
 |     const tran_low_t dqc = dqcoeff[ci]; | 
 |     const int64_t dist = get_coeff_dist(tqc, dqc, shift); | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     accu_dist += dist - dist0; | 
 |     ++si; | 
 |   } | 
 |  | 
 |   // Move BOB | 
 |   for (; si < eob && nz_num <= max_nz_num; ++si) { | 
 |     update_coeff_bob(&accu_rate, &accu_dist, &bob_code, &eob, &nz_num, nz_ci, | 
 |                      si, bwl, height, rdmult, shift, dequant, scan, | 
 |                      txb_eob_costs, txb_costs, tcoeff, qcoeff, dqcoeff, levels, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                      signs, sharpness, iqmatrix, tx_size, is_inter, | 
 |                      &hr_level_avg); | 
 | #else | 
 |                      signs, sharpness, iqmatrix, tx_size, is_inter); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |  | 
 |   update_skip(&accu_rate, accu_dist, &eob, nz_num, nz_ci, rdmult, skip_cost, | 
 |               non_skip_cost, qcoeff, dqcoeff, sharpness); | 
 |  | 
 |   for (; si < eob; ++si) { | 
 |     update_coeff_fsc_general(&accu_rate, &accu_dist, si, bob, bwl, height, | 
 |                              rdmult, shift, dequant, scan, txb_costs, tcoeff, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                              qcoeff, dqcoeff, levels, signs, iqmatrix, | 
 |                              &hr_level_avg); | 
 | #else | 
 |                              qcoeff, dqcoeff, levels, signs, iqmatrix); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |  | 
 |   if (eob == 0) { | 
 |     accu_rate += skip_cost; | 
 |   } else { | 
 |     const int tx_type_cost = get_tx_type_cost(x, xd, plane, tx_size, tx_type, | 
 |                                               cm->features.reduced_tx_set_used, | 
 |                                               eob, bob_code, is_fsc); | 
 |     accu_rate += non_skip_cost + tx_type_cost; | 
 |   } | 
 |   p->eobs[block] = eob; | 
 |   p->bobs[block] = bob_code; | 
 |   p->txb_entropy_ctx[block] = | 
 |       av1_get_txb_entropy_context(qcoeff, scan_order, p->eobs[block]); | 
 |   *rate_cost = accu_rate; | 
 |   return eob; | 
 | } | 
 |  | 
 | int av1_optimize_txb_new(const struct AV1_COMP *cpi, MACROBLOCK *x, int plane, | 
 |                          int block, TX_SIZE tx_size, TX_TYPE tx_type, | 
 |                          CctxType cctx_type, const TXB_CTX *const txb_ctx, | 
 |                          int *rate_cost, int sharpness) { | 
 |   MACROBLOCKD *xd = &x->e_mbd; | 
 |   const struct macroblock_plane *p = &x->plane[plane]; | 
 |   const SCAN_ORDER *scan_order = | 
 |       get_scan(tx_size, get_primary_tx_type(tx_type)); | 
 |   const int16_t *scan = scan_order->scan; | 
 |   const int shift = av1_get_tx_scale(tx_size); | 
 |   int eob = p->eobs[block]; | 
 |   const int32_t *dequant = p->dequant_QTX; | 
 |   const qm_val_t *iqmatrix = | 
 |       av1_get_iqmatrix(&cpi->common.quant_params, xd, plane, tx_size, tx_type); | 
 |   const int block_offset = BLOCK_OFFSET(block); | 
 |   tran_low_t *qcoeff = p->qcoeff + block_offset; | 
 |   tran_low_t *dqcoeff = p->dqcoeff + block_offset; | 
 |   const tran_low_t *tcoeff = p->coeff + block_offset; | 
 |   const CoeffCosts *coeff_costs = &x->coeff_costs; | 
 |  | 
 |   // This function is not called if eob = 0. | 
 |   assert(eob > 0); | 
 |  | 
 |   const AV1_COMMON *cm = &cpi->common; | 
 |   const PLANE_TYPE plane_type = get_plane_type(plane); | 
 |   const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |   const TX_CLASS tx_class = tx_type_to_class[get_primary_tx_type(tx_type)]; | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   const int bwl = get_txb_bwl(tx_size); | 
 |   const int width = get_txb_wide(tx_size); | 
 |   const int height = get_txb_high(tx_size); | 
 |   assert(width == (1 << bwl)); | 
 |   const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   const int bob_code = p->bobs[block]; | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |   int hr_level_avg = 0; | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   const int is_fsc = (xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |                       plane == PLANE_TYPE_Y) || | 
 |                      use_inter_fsc(&cpi->common, plane, tx_type, is_inter); | 
 |   const LV_MAP_COEFF_COST *txb_costs = | 
 |       &coeff_costs->coeff_costs[txs_ctx][plane_type]; | 
 |   const int eob_multi_size = txsize_log2_minus4[tx_size]; | 
 |   const LV_MAP_EOB_COST *txb_eob_costs = | 
 |       &coeff_costs->eob_costs[eob_multi_size][plane_type]; | 
 |   const LV_MAP_COEFF_COST *txb_costs_ph = | 
 |       &coeff_costs->coeff_costs[0][plane_type]; | 
 |  | 
 |   bool enable_parity_hiding = | 
 |       cm->features.allow_parity_hiding && | 
 |       !xd->lossless[xd->mi[0]->segment_id] && plane == PLANE_TYPE_Y && | 
 |       ph_allowed_tx_types[get_primary_tx_type(tx_type)] && (eob > PHTHRESH); | 
 |   coeff_info *coef_info = x->coef_info; | 
 |   for (int scan_idx = 0; scan_idx < eob; scan_idx++) { | 
 |     coef_info[scan_idx].tunable = false; | 
 |     coef_info[scan_idx].upround = false; | 
 |   } | 
 |  | 
 |   const int rshift = | 
 |       (sharpness + | 
 |        (cpi->oxcf.q_cfg.aq_mode == VARIANCE_AQ && mbmi->segment_id < 4 | 
 |             ? 7 - mbmi->segment_id | 
 |             : 2) + | 
 |        (cpi->oxcf.q_cfg.aq_mode != VARIANCE_AQ && | 
 |                 cpi->oxcf.q_cfg.deltaq_mode == DELTA_Q_PERCEPTUAL && | 
 |                 cm->delta_q_info.delta_q_present_flag && x->sb_energy_level < 0 | 
 |             ? (3 - x->sb_energy_level) | 
 |             : 0)); | 
 |   const int64_t rdmult = | 
 |       (((int64_t)x->rdmult * | 
 |         (plane_rd_mult[is_inter][plane_type] << (2 * (xd->bd - 8)))) + | 
 |        2) >> | 
 |       rshift; | 
 |  | 
 |   uint8_t levels_buf[TX_PAD_2D]; | 
 |   uint8_t *const levels = set_levels(levels_buf, width); | 
 |  | 
 |   if (eob > 1) av1_txb_init_levels(qcoeff, width, height, levels); | 
 |  | 
 |     // TODO(angirbird): check iqmatrix | 
 |  | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |   int txb_skip_ctx = txb_ctx->txb_skip_ctx; | 
 |   int non_skip_cost = 0; | 
 |   int skip_cost = 0; | 
 |   if (plane == AOM_PLANE_V) { | 
 |     txb_skip_ctx += | 
 |         (x->plane[AOM_PLANE_U].eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |     non_skip_cost = txb_costs->v_txb_skip_cost[txb_skip_ctx][0]; | 
 |     skip_cost = txb_costs->v_txb_skip_cost[txb_skip_ctx][1]; | 
 |   } else { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     const int pred_mode_ctx = | 
 |         (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |     non_skip_cost = txb_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][0]; | 
 |     skip_cost = txb_costs->txb_skip_cost[pred_mode_ctx][txb_skip_ctx][1]; | 
 | #else | 
 |     non_skip_cost = txb_costs->txb_skip_cost[txb_skip_ctx][0]; | 
 |     skip_cost = txb_costs->txb_skip_cost[txb_skip_ctx][1]; | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |   } | 
 | #else | 
 |   const int non_skip_cost = txb_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][0]; | 
 |   const int skip_cost = txb_costs->txb_skip_cost[txb_ctx->txb_skip_ctx][1]; | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 | #if CONFIG_EOB_POS_LUMA | 
 |   const int eob_cost = get_eob_cost(eob, txb_eob_costs, txb_costs, is_inter); | 
 | #else | 
 |   const int eob_cost = get_eob_cost(eob, txb_eob_costs, txb_costs); | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   int accu_rate = eob_cost; | 
 |   int64_t accu_dist = 0; | 
 |   int si = eob - 1; | 
 |   const int ci = scan[si]; | 
 |   const tran_low_t qc = qcoeff[ci]; | 
 |   const tran_low_t abs_qc = abs(qc); | 
 |   const int sign = qc < 0; | 
 |   const int max_nz_num = 2; | 
 |   int nz_num = 1; | 
 |   int nz_ci[3] = { ci, 0, 0 }; | 
 |   if (abs_qc >= 2) { | 
 |     update_coeff_general(&accu_rate, &accu_dist, si, eob, tx_class, bwl, height, | 
 |                          rdmult, shift, txb_ctx->dc_sign_ctx, dequant, scan, | 
 |                          txb_costs, tcoeff, qcoeff, dqcoeff, levels, iqmatrix | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                          , | 
 |                          xd->tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                          , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                          plane, coef_info, enable_parity_hiding, &hr_level_avg); | 
 | #else | 
 |                          plane, coef_info, enable_parity_hiding); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     --si; | 
 |   } else { | 
 |     assert(abs_qc == 1); | 
 |     const int coeff_ctx = get_lower_levels_ctx_eob(bwl, height, si); | 
 |     accu_rate += | 
 |         get_coeff_cost_eob(ci, abs_qc, sign, coeff_ctx, txb_ctx->dc_sign_ctx, | 
 |                            txb_costs, bwl, tx_class | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                            , | 
 |                            xd->tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                            , | 
 |                            plane); | 
 |     const tran_low_t tqc = tcoeff[ci]; | 
 |     const tran_low_t dqc = dqcoeff[ci]; | 
 |     const int64_t dist = get_coeff_dist(tqc, dqc, shift); | 
 |     const int64_t dist0 = get_coeff_dist(tqc, 0, shift); | 
 |     accu_dist += dist - dist0; | 
 |     --si; | 
 |   } | 
 |  | 
 |   assert(tx_class < TX_CLASSES); | 
 |   update_coeff_eob_facade( | 
 |       &accu_rate, &accu_dist, &eob, &nz_num, nz_ci, &si, tx_size, is_inter, | 
 |       tx_class, txb_ctx->dc_sign_ctx, rdmult, shift, dequant, scan, | 
 |       txb_eob_costs, txb_costs, tcoeff, qcoeff, dqcoeff, levels, sharpness, | 
 |       iqmatrix, xd->tmp_sign, plane, coef_info, enable_parity_hiding, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |       max_nz_num, &hr_level_avg); | 
 | #else | 
 |       max_nz_num); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |   if (si == -1 && nz_num <= max_nz_num) { | 
 |     update_skip(&accu_rate, accu_dist, &eob, nz_num, nz_ci, rdmult, skip_cost, | 
 |                 non_skip_cost, qcoeff, dqcoeff, sharpness); | 
 |   } | 
 |  | 
 |   update_coeff_simple_facade(&accu_rate, &si, eob, tx_class, bwl, rdmult, shift, | 
 |                              dequant, scan, txb_costs, tcoeff, qcoeff, dqcoeff, | 
 |                              levels, iqmatrix, coef_info, | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                              enable_parity_hiding, plane, &hr_level_avg); | 
 | #else | 
 |                              enable_parity_hiding, plane); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |  | 
 |   // DC position | 
 |   if (si == 0) { | 
 |     // no need to update accu_dist because it's not used after this point | 
 |     int64_t dummy_dist = 0; | 
 |     update_coeff_general(&accu_rate, &dummy_dist, si, eob, tx_class, bwl, | 
 |                          height, rdmult, shift, txb_ctx->dc_sign_ctx, dequant, | 
 |                          scan, txb_costs, tcoeff, qcoeff, dqcoeff, levels, | 
 |                          iqmatrix | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |                          , | 
 |                          xd->tmp_sign | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |                          , | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                          plane, coef_info, enable_parity_hiding, &hr_level_avg); | 
 | #else | 
 |                          plane, coef_info, enable_parity_hiding); | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |   } | 
 |  | 
 |   if (enable_parity_hiding) { | 
 |     parity_hide_tb(eob, scan, levels, bwl, rdmult, shift, txb_costs, | 
 |                    txb_costs_ph, dequant, iqmatrix, txb_ctx->dc_sign_ctx, | 
 |                    tx_class, qcoeff, dqcoeff, tcoeff, coef_info, &accu_rate, | 
 |                    plane | 
 | #if CONFIG_COEFF_HR_ADAPTIVE | 
 |                    , | 
 |                    hr_level_avg | 
 | #endif  // CONFIG_COEFF_HR_ADAPTIVE | 
 |     ); | 
 |   } | 
 |  | 
 |   set_bob(x, plane, block, tx_size, tx_type); | 
 |  | 
 |   if (eob == 0) { | 
 |     accu_rate += skip_cost; | 
 |   } else { | 
 |     const int tx_type_cost = get_tx_type_cost(x, xd, plane, tx_size, tx_type, | 
 |                                               cm->features.reduced_tx_set_used, | 
 |                                               eob, bob_code, is_fsc); | 
 |     accu_rate += non_skip_cost + tx_type_cost; | 
 |   } | 
 |  | 
 |   p->eobs[block] = eob; | 
 |   p->txb_entropy_ctx[block] = | 
 |       av1_get_txb_entropy_context(qcoeff, scan_order, p->eobs[block]); | 
 |  | 
 |   accu_rate += get_cctx_type_cost(cm, x, xd, plane, tx_size, block, cctx_type); | 
 |  | 
 |   *rate_cost = accu_rate; | 
 |   return eob; | 
 | } | 
 |  | 
 | uint8_t av1_get_txb_entropy_context(const tran_low_t *qcoeff, | 
 |                                     const SCAN_ORDER *scan_order, int eob) { | 
 |   const int16_t *const scan = scan_order->scan; | 
 |   int cul_level = 0; | 
 |   int c; | 
 |  | 
 |   if (eob == 0) return 0; | 
 |   for (c = 0; c < eob; ++c) { | 
 |     cul_level += abs(qcoeff[scan[c]]); | 
 |     if (cul_level > COEFF_CONTEXT_MASK) break; | 
 |   } | 
 |  | 
 |   cul_level = AOMMIN(COEFF_CONTEXT_MASK, cul_level); | 
 |   set_dc_sign(&cul_level, qcoeff[0]); | 
 |  | 
 |   return (uint8_t)cul_level; | 
 | } | 
 |  | 
 | // Update counts of cctx types | 
 | static void update_cctx_type_count(const AV1_COMMON *cm, MACROBLOCKD *xd, | 
 |                                    int blk_row, int blk_col, TX_SIZE tx_size, | 
 |                                    FRAME_COUNTS *counts, | 
 |                                    uint8_t allow_update_cdf) { | 
 |   const MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   FRAME_CONTEXT *fc = xd->tile_ctx; | 
 | #if !CONFIG_ENTROPY_STATS | 
 |   (void)counts; | 
 | #endif  // !CONFIG_ENTROPY_STATS | 
 |   if (!xd->lossless[mbmi->segment_id] && | 
 |       !mbmi->skip_txfm[xd->tree_type == CHROMA_PART] && | 
 |       !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { | 
 |     const CctxType cctx_type = av1_get_cctx_type(xd, blk_row, blk_col); | 
 |     int above_cctx, left_cctx; | 
 |     get_above_and_left_cctx_type(cm, xd, &above_cctx, &left_cctx); | 
 |     const int cctx_ctx = get_cctx_context(xd, &above_cctx, &left_cctx); | 
 |     if (allow_update_cdf) | 
 |       update_cdf(fc->cctx_type_cdf[txsize_sqr_map[tx_size]][cctx_ctx], | 
 |                  cctx_type, CCTX_TYPES); | 
 | #if CONFIG_ENTROPY_STATS | 
 |     ++counts->cctx_type[txsize_sqr_map[tx_size]][cctx_ctx][cctx_type]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |   } | 
 | } | 
 |  | 
 | // This function updates the cdf for a 'secondary tx set' | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 | static void update_sec_tx_set_cdf(MACROBLOCKD *xd, FRAME_CONTEXT *fc, | 
 |                                   MB_MODE_INFO *mbmi, TX_SIZE tx_size, | 
 | #else | 
 | static void update_sec_tx_set_cdf(FRAME_CONTEXT *fc, MB_MODE_INFO *mbmi, | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 |                                   TX_TYPE tx_type) { | 
 |   uint8_t stx_set_flag = get_secondary_tx_set(tx_type); | 
 | #if !CONFIG_E124_IST_REDUCE_METHOD1 | 
 |   if (get_primary_tx_type(tx_type) == ADST_ADST) stx_set_flag -= IST_DIR_SIZE; | 
 | #endif  // !CONFIG_E124_IST_REDUCE_METHOD1 | 
 |   assert(stx_set_flag < IST_DIR_SIZE); | 
 |   uint8_t intra_mode = get_intra_mode(mbmi, PLANE_TYPE_Y); | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |   if (!is_inter_block(mbmi, xd->tree_type) && tx_size_wide[tx_size] >= 8 && | 
 |       tx_size_high[tx_size] >= 8 && get_primary_tx_type(tx_type) == ADST_ADST) { | 
 |     update_cdf(fc->most_probable_stx_set_cdf_ADST_ADST, | 
 |                most_probable_stx_mapping_ADST_ADST[intra_mode][stx_set_flag], | 
 |                IST_REDUCE_SET_SIZE_ADST_ADST); | 
 |   } else { | 
 |     update_cdf(fc->most_probable_stx_set_cdf, | 
 |                most_probable_stx_mapping[intra_mode][stx_set_flag], | 
 |                IST_DIR_SIZE); | 
 |   } | 
 | #else | 
 |   update_cdf(fc->most_probable_stx_set_cdf, | 
 |              most_probable_stx_mapping[intra_mode][stx_set_flag], IST_DIR_SIZE); | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | } | 
 |  | 
 | static void update_tx_type_count(const AV1_COMP *cpi, const AV1_COMMON *cm, | 
 |                                  MACROBLOCKD *xd, int blk_row, int blk_col, | 
 |                                  int plane, TX_SIZE tx_size, | 
 |                                  FRAME_COUNTS *counts, uint8_t allow_update_cdf, | 
 |                                  int eob, int bob_code, int is_fsc) { | 
 |   MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |   int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 |   const int reduced_tx_set_used = | 
 |       is_reduced_tx_set_used(cm, get_plane_type(plane)); | 
 |   FRAME_CONTEXT *fc = xd->tile_ctx; | 
 | #if !CONFIG_ENTROPY_STATS | 
 |   (void)counts; | 
 | #endif  // !CONFIG_ENTROPY_STATS | 
 |  | 
 |   // Only y plane's tx_type is updated | 
 |   if (plane > 0) return; | 
 |   const TX_TYPE tx_type = av1_get_tx_type(xd, PLANE_TYPE_Y, blk_row, blk_col, | 
 |                                           tx_size, reduced_tx_set_used); | 
 |   if (is_inter) { | 
 |     if (cpi->oxcf.txfm_cfg.use_inter_dct_only) { | 
 |       assert(tx_type == DCT_DCT); | 
 |     } | 
 |   } else { | 
 |     if (cpi->oxcf.txfm_cfg.use_intra_dct_only) { | 
 |       assert(get_primary_tx_type(tx_type) == DCT_DCT); | 
 |     } else if (cpi->oxcf.txfm_cfg.use_intra_default_tx_only) { | 
 |       const TX_TYPE default_type = get_default_tx_type( | 
 |           PLANE_TYPE_Y, xd, tx_size, cpi->is_screen_content_type); | 
 |       (void)default_type; | 
 |       // assert(get_primary_tx_type(tx_type) == default_type); | 
 |     } | 
 |   } | 
 |  | 
 | #if CONFIG_IMPROVE_LOSSLESS_TXM | 
 |   if (xd->lossless[mbmi->segment_id]) { | 
 |     if (is_inter && tx_size == TX_4X4) { | 
 |       update_cdf(xd->tile_ctx->lossless_inter_tx_type_cdf, | 
 |                  get_primary_tx_type(tx_type) == IDTX, 2); | 
 |     } | 
 |     return; | 
 |   } | 
 | #endif  // CONFIG_IMPROVE_LOSSLESS_TXM | 
 |  | 
 |   if (get_ext_tx_types(tx_size, is_inter, reduced_tx_set_used) > 1 && | 
 |       !mbmi->skip_txfm[xd->tree_type == CHROMA_PART] && | 
 |       !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { | 
 |     const int eset = get_ext_tx_set(tx_size, is_inter, reduced_tx_set_used); | 
 |     if (eset > 0) { | 
 |       const TxSetType tx_set_type = | 
 |           av1_get_ext_tx_set_type(tx_size, is_inter, reduced_tx_set_used); | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |       const TX_SIZE tx_size_sqr_up = txsize_sqr_up_map[tx_size]; | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |       if (is_inter) { | 
 |         const int esc_eob = is_fsc ? bob_code : eob; | 
 |         const int eob_tx_ctx = | 
 |             get_lp2tx_ctx(tx_size, get_txb_bwl(tx_size), esc_eob); | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         if (tx_set_type != EXT_TX_SET_LONG_SIDE_64 && | 
 |             tx_set_type != EXT_TX_SET_LONG_SIDE_32) { | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |           if (allow_update_cdf) { | 
 |             update_cdf( | 
 |                 fc->inter_ext_tx_cdf[eset][eob_tx_ctx][txsize_sqr_map[tx_size]], | 
 |                 av1_ext_tx_ind[tx_set_type][get_primary_tx_type(tx_type)], | 
 |                 av1_num_ext_tx_set[tx_set_type]); | 
 | #if !CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |             // Modified condition for CDF update | 
 |             if (cm->seq_params.enable_inter_ist && | 
 |                 block_signals_sec_tx_type(xd, tx_size, tx_type, eob)) { | 
 |               update_cdf(fc->stx_cdf[is_inter][txsize_sqr_map[tx_size]], | 
 |                          (int8_t)get_secondary_tx_type(tx_type), STX_TYPES); | 
 |             } | 
 | #endif  //! CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |           } | 
 | #if CONFIG_ENTROPY_STATS | 
 |           ++counts->inter_ext_tx[eset][eob_tx_ctx][txsize_sqr_map[tx_size]] | 
 |                                 [av1_ext_tx_ind[tx_set_type] | 
 |                                                [get_primary_tx_type(tx_type)]]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         } else { | 
 |           bool is_long_side_dct = | 
 |               is_dct_type(tx_size, get_primary_tx_type(tx_type)); | 
 |           if (tx_size_sqr_up == TX_32X32) { | 
 |             if (allow_update_cdf) { | 
 |               update_cdf(fc->tx_ext_32_cdf[is_inter], is_long_side_dct, 2); | 
 |             } | 
 | #if CONFIG_ENTROPY_STATS | 
 |             ++counts->tx_ext_32[is_inter][is_long_side_dct]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           } | 
 |  | 
 |           int tx_type_idx = get_idx_from_txtype_for_large_txfm( | 
 |               tx_set_type, get_primary_tx_type(tx_type), | 
 |               is_long_side_dct);  // 0: DCT_DCT, 1: ADST, 2: FLIPADST, | 
 |                                   // 3: Identity | 
 |           if (allow_update_cdf) { | 
 |             update_cdf(fc->inter_ext_tx_short_side_cdf[eob_tx_ctx] | 
 |                                                       [txsize_sqr_map[tx_size]], | 
 |                        tx_type_idx, 4); | 
 |           } | 
 | #if CONFIG_ENTROPY_STATS | 
 |           ++counts->inter_ext_tx_short_side[eob_tx_ctx][txsize_sqr_map[tx_size]] | 
 |                                            [tx_type_idx]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |         } | 
 |         // Modified condition for CDF update | 
 |         if (allow_update_cdf && cm->seq_params.enable_inter_ist && | 
 |             block_signals_sec_tx_type(xd, tx_size, tx_type, eob)) { | 
 |           update_cdf(fc->stx_cdf[is_inter][txsize_sqr_map[tx_size]], | 
 |                      (int8_t)get_secondary_tx_type(tx_type), STX_TYPES); | 
 |         } | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |       } else { | 
 |         if (mbmi->fsc_mode[xd->tree_type == CHROMA_PART] && allow_update_cdf) { | 
 |           return; | 
 |         } | 
 |         if (eob == 1 && allow_update_cdf) return; | 
 |         PREDICTION_MODE intra_dir; | 
 |         if (mbmi->filter_intra_mode_info.use_filter_intra) | 
 |           intra_dir = fimode_to_intradir[mbmi->filter_intra_mode_info | 
 |                                              .filter_intra_mode]; | 
 | #if CONFIG_WAIP | 
 | #if CONFIG_NEW_TX_PARTITION | 
 |         else if (mbmi->is_wide_angle[0][mbmi->txb_idx]) | 
 |           intra_dir = mbmi->mapped_intra_mode[0][mbmi->txb_idx]; | 
 | #else | 
 |         else if (mbmi->is_wide_angle[0]) | 
 |           intra_dir = mbmi->mapped_intra_mode[0]; | 
 | #endif  // CONFIG_NEW_TX_PARTITION | 
 | #endif  // CONFIG_WAIP | 
 |         else | 
 |           intra_dir = mbmi->mode; | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         if (tx_set_type != EXT_TX_SET_LONG_SIDE_64 && | 
 |             tx_set_type != EXT_TX_SET_LONG_SIDE_32) { | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 | #if CONFIG_ENTROPY_STATS | 
 |           const TX_TYPE primary_tx_type = get_primary_tx_type(tx_type); | 
 |           ++counts->intra_ext_tx[eset][txsize_sqr_map[tx_size]] | 
 |                                 [av1_tx_type_to_idx(primary_tx_type, | 
 |                                                     tx_set_type, intra_dir, | 
 |                                                     av1_size_class[tx_size])]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           if (allow_update_cdf) { | 
 |             update_cdf( | 
 |                 fc->intra_ext_tx_cdf[eset + cm->features.reduced_tx_set_used] | 
 |                                     [txsize_sqr_map[tx_size]], | 
 |                 av1_tx_type_to_idx(get_primary_tx_type(tx_type), tx_set_type, | 
 |                                    intra_dir, av1_size_class[tx_size]), | 
 |                 cm->features.reduced_tx_set_used | 
 |                     ? av1_num_reduced_tx_set | 
 |                     : av1_num_ext_tx_set_intra[tx_set_type]); | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |           } | 
 |         } else { | 
 |           bool is_long_side_dct = | 
 |               is_dct_type(tx_size, get_primary_tx_type(tx_type)); | 
 |           if (tx_size_sqr_up == TX_32X32) { | 
 |             if (allow_update_cdf) { | 
 |               update_cdf(fc->tx_ext_32_cdf[is_inter], is_long_side_dct, 2); | 
 |             } | 
 | #if CONFIG_ENTROPY_STATS | 
 |             ++counts->tx_ext_32[is_inter][is_long_side_dct]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           } | 
 |           int tx_type_idx = get_idx_from_txtype_for_large_txfm( | 
 |               tx_set_type, get_primary_tx_type(tx_type), | 
 |               is_long_side_dct);  // 0: DCT_DCT, 1: ADST, 2: FLIPADST, | 
 |                                   // 3: Identity | 
 |           if (allow_update_cdf) { | 
 |             update_cdf(fc->intra_ext_tx_short_side_cdf[txsize_sqr_map[tx_size]], | 
 |                        tx_type_idx, 4); | 
 |           } | 
 | #if CONFIG_ENTROPY_STATS | 
 |           ++counts | 
 |                 ->intra_ext_tx_short_side[txsize_sqr_map[tx_size]][tx_type_idx]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |         } | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         //  Modified condition for CDF update | 
 |         if ( | 
 | #if CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |             allow_update_cdf && | 
 | #endif  // CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |             cm->seq_params.enable_ist && | 
 |             block_signals_sec_tx_type(xd, tx_size, tx_type, eob)) { | 
 |           update_cdf(fc->stx_cdf[is_inter][txsize_sqr_map[tx_size]], | 
 |                      (int8_t)get_secondary_tx_type(tx_type), STX_TYPES); | 
 | #if CONFIG_IST_SET_FLAG | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |           if (get_secondary_tx_type(tx_type) > 0) | 
 |             update_sec_tx_set_cdf(xd, fc, mbmi, tx_size, tx_type); | 
 | #else | 
 |           if (get_secondary_tx_type(tx_type) > 0) | 
 |             update_sec_tx_set_cdf(fc, mbmi, tx_type); | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | #endif  // CONFIG_IST_SET_FLAG | 
 | #if !CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |         } | 
 | #endif  //! CONFIG_TX_TYPE_FLEX_IMPROVE | 
 |       } | 
 |     } | 
 |   } | 
 | } | 
 | // CDF update for txsize_sqr_up_map[tx_size] >= TX_32X32 | 
 | else if (!mbmi->skip_txfm[xd->tree_type == CHROMA_PART] && | 
 |          !segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP) && | 
 |          (is_inter ? cm->seq_params.enable_inter_ist | 
 |                    : cm->seq_params.enable_ist) && | 
 |          block_signals_sec_tx_type(xd, tx_size, tx_type, eob)) { | 
 |   if (eob == 1 && !is_inter && allow_update_cdf) return; | 
 |   if (allow_update_cdf) { | 
 |     update_cdf(fc->stx_cdf[is_inter][txsize_sqr_map[tx_size]], | 
 |                (int8_t)get_secondary_tx_type(tx_type), STX_TYPES); | 
 | #if CONFIG_IST_SET_FLAG | 
 | #if CONFIG_F105_IST_MEM_REDUCE | 
 |     if (get_secondary_tx_type(tx_type) > 0 && !is_inter) | 
 |       update_sec_tx_set_cdf(xd, fc, mbmi, tx_size, tx_type); | 
 | #else | 
 |     if (get_secondary_tx_type(tx_type) > 0 && !is_inter) | 
 |       update_sec_tx_set_cdf(fc, mbmi, tx_type); | 
 | #endif  // CONFIG_F105_IST_MEM_REDUCE | 
 | #endif  // CONFIG_IST_SET_FLAG | 
 |   } | 
 | } | 
 | } | 
 |  | 
 | void av1_update_and_record_txb_skip_context(int plane, int block, int blk_row, | 
 |                                             int blk_col, BLOCK_SIZE plane_bsize, | 
 |                                             TX_SIZE tx_size, void *arg) { | 
 |   struct tokenize_b_args *const args = arg; | 
 |   const AV1_COMP *cpi = args->cpi; | 
 |   const AV1_COMMON *cm = &cpi->common; | 
 |   ThreadData *const td = args->td; | 
 |   MACROBLOCK *const x = &td->mb; | 
 |   MACROBLOCKD *const xd = &x->e_mbd; | 
 |   struct macroblock_plane *p = &x->plane[plane]; | 
 |   struct macroblockd_plane *pd = &xd->plane[plane]; | 
 |   const int eob = p->eobs[block]; | 
 |   const int bob_code = p->bobs[block]; | 
 |   const int block_offset = BLOCK_OFFSET(block); | 
 |   tran_low_t *qcoeff = p->qcoeff + block_offset; | 
 |   const PLANE_TYPE plane_type = pd->plane_type; | 
 |   const TX_TYPE tx_type = | 
 |       av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, | 
 |                       is_reduced_tx_set_used(cm, plane_type)); | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   tran_low_t *tcoeff; | 
 |   MB_MODE_INFO *mbmi = xd->mi[0]; | 
 | #if CONFIG_EOB_POS_LUMA | 
 |   int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |   assert(args->dry_run != DRY_RUN_COSTCOEFFS); | 
 |   if (args->dry_run == OUTPUT_ENABLED) { | 
 |     TXB_CTX txb_ctx; | 
 |     get_txb_ctx(plane_bsize, tx_size, plane, | 
 |                 pd->above_entropy_context + blk_col, | 
 |                 pd->left_entropy_context + blk_row, &txb_ctx, | 
 |                 mbmi->fsc_mode[xd->tree_type == CHROMA_PART]); | 
 |     const int bwl = get_txb_bwl(tx_size); | 
 |     const int width = get_txb_wide(tx_size); | 
 |     const int height = get_txb_high(tx_size); | 
 |     const uint8_t allow_update_cdf = args->allow_update_cdf; | 
 |     const TX_SIZE txsize_ctx = get_txsize_entropy_ctx(tx_size); | 
 |     FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 | #if CONFIG_ENTROPY_STATS | 
 |     int cdf_idx = cm->coef_cdf_category; | 
 |     ++td->counts->txb_skip[cdf_idx][txsize_ctx][txb_ctx.txb_skip_ctx][eob == 0]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |     if (allow_update_cdf) { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 | #if !CONFIG_EOB_POS_LUMA | 
 |       const int is_inter = is_inter_block(mbmi, xd->tree_type); | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |       const int pred_mode_ctx = | 
 |           (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |       update_cdf( | 
 |           ec_ctx->txb_skip_cdf[pred_mode_ctx][txsize_ctx][txb_ctx.txb_skip_ctx], | 
 |           eob == 0, 2); | 
 | #else | 
 |         update_cdf(ec_ctx->txb_skip_cdf[txsize_ctx][txb_ctx.txb_skip_ctx], | 
 |                    eob == 0, 2); | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |     } | 
 |     CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 |     const int txb_offset = | 
 |         x->mbmi_ext_frame->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); | 
 |     uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; | 
 |     uint8_t *const entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; | 
 |     entropy_ctx[block] = txb_ctx.txb_skip_ctx; | 
 |     eob_txb[block] = eob; | 
 |     uint16_t *bob_txb = cb_coef_buff->bobs[plane] + txb_offset; | 
 |     bob_txb[block] = bob_code; | 
 |  | 
 |     if (eob == 0) { | 
 |       av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, 0, blk_col, | 
 |                                blk_row); | 
 |       return; | 
 |     } | 
 |     assert(eob == av1_get_max_eob(tx_size)); | 
 |     const int segment_id = mbmi->segment_id; | 
 |     const int seg_eob = av1_get_tx_eob(&cpi->common.seg, segment_id, tx_size); | 
 |     tran_low_t *tcoeff_txb = | 
 |         cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane]; | 
 |     tcoeff = tcoeff_txb + block_offset; | 
 |     memcpy(tcoeff, qcoeff, sizeof(*tcoeff) * seg_eob); | 
 |  | 
 |     uint8_t levels_buf[TX_PAD_2D]; | 
 |     uint8_t *const levels = set_levels(levels_buf, width); | 
 |     int8_t signs_buf[TX_PAD_2D]; | 
 |     int8_t *const signs = set_signs(signs_buf, width); | 
 |     av1_txb_init_levels_signs(tcoeff, width, height, levels_buf, signs_buf); | 
 |     update_tx_type_count(cpi, cm, xd, blk_row, blk_col, plane, tx_size, | 
 |                          td->counts, allow_update_cdf, eob, bob_code, | 
 |                          1 /* is_fsc */); | 
 |     const int16_t *const scan = scan_order->scan; | 
 |     // record tx type usage | 
 |     td->rd_counts.tx_type_used[tx_size][get_primary_tx_type(tx_type)]++; | 
 |     int bob = av1_get_max_eob(tx_size) - bob_code; | 
 | #if CONFIG_ENTROPY_STATS | 
 |     av1_update_eob_context(cdf_idx, bob_code, tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                            is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                            plane_type, ec_ctx, td->counts, allow_update_cdf); | 
 | #else | 
 |       av1_update_eob_context(bob_code, tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                              is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                              plane_type, ec_ctx, allow_update_cdf); | 
 | #endif | 
 |     DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |     av1_get_nz_map_contexts_skip_c(levels, scan, bob, eob, tx_size, | 
 |                                    coeff_contexts); | 
 |     const TX_SIZE txs_ctx = get_txsize_entropy_ctx(tx_size); | 
 |     const int size_ctx = AOMMIN(txs_ctx, TX_16X16); | 
 |     for (int c = bob; c < eob; ++c) { | 
 |       const int pos = scan[c]; | 
 |       const int coeff_ctx = coeff_contexts[pos]; | 
 |       const tran_low_t v = qcoeff[pos]; | 
 |       const tran_low_t level = abs(v); | 
 |       if (allow_update_cdf) { | 
 |         if (c == bob) { | 
 |           update_cdf(ec_ctx->coeff_base_bob_cdf[size_ctx][coeff_ctx], | 
 |                      AOMMIN(level, 3) - 1, 3); | 
 |         } else { | 
 |           update_cdf(ec_ctx->coeff_base_cdf_idtx[size_ctx][coeff_ctx], | 
 |                      AOMMIN(level, 3), 4); | 
 |         } | 
 |       } | 
 | #if CONFIG_ENTROPY_STATS | 
 |       if (c == bob) { | 
 |         ++td->counts->coeff_base_bob_multi[cdf_idx][size_ctx][coeff_ctx] | 
 |                                           [AOMMIN(level, 3) - 1]; | 
 |       } else { | 
 |         ++td->counts->coeff_base_multi_skip[cdf_idx][size_ctx][coeff_ctx] | 
 |                                            [AOMMIN(level, 3)]; | 
 |       } | 
 | #endif | 
 |       if (level > NUM_BASE_LEVELS) { | 
 |         const int base_range = level - 1 - NUM_BASE_LEVELS; | 
 |         const int br_ctx = get_br_ctx_skip(levels, pos, bwl); | 
 |         for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |           const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |           if (allow_update_cdf) { | 
 |             update_cdf(ec_ctx->coeff_br_cdf_idtx[size_ctx][br_ctx], k, | 
 |                        BR_CDF_SIZE); | 
 |           } | 
 |           for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |             ++td->counts->coeff_lps_skip[size_ctx][lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |             if (lps == k) break; | 
 |           } | 
 | #if CONFIG_ENTROPY_STATS | 
 |           ++td->counts->coeff_lps_multi_skip[cdf_idx][size_ctx][br_ctx][k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           if (k < BR_CDF_SIZE - 1) break; | 
 |         } | 
 |       } | 
 |     } | 
 |     for (int c = bob; c < eob; c++) { | 
 |       const int pos = scan[c]; | 
 |       const tran_low_t v = qcoeff[pos]; | 
 |       const tran_low_t level = abs(v); | 
 |       const int idtx_sign = (v < 0) ? 1 : 0; | 
 |       if (level) { | 
 |         int idtx_sign_ctx = get_sign_ctx_skip(signs, levels, pos, bwl); | 
 | #if CONFIG_ENTROPY_STATS | 
 |         ++td->counts->idtx_sign[cdf_idx][size_ctx][idtx_sign_ctx][idtx_sign]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |         if (allow_update_cdf) | 
 |           update_cdf(ec_ctx->idtx_sign_cdf[size_ctx][idtx_sign_ctx], idtx_sign, | 
 |                      2); | 
 |       } | 
 |     } | 
 |   } else { | 
 |     tcoeff = qcoeff; | 
 |   } | 
 |   const uint8_t cul_level = | 
 |       av1_get_txb_entropy_context(tcoeff, scan_order, eob); | 
 |   av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, | 
 |                            blk_col, blk_row); | 
 | } | 
 |  | 
 | void update_coeff_ctx_hiden(TX_CLASS tx_class, const int16_t *scan, int bwl, | 
 |                             uint8_t *levels, int level, | 
 |                             base_ph_cdf_arr base_cdf_ph, br_cdf_arr br_cdf_ph | 
 | #if CONFIG_ENTROPY_STATS | 
 |                             , | 
 |                             ThreadData *const td, int cdf_idx | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 | ) { | 
 |   const int q_index = (level >> 1); | 
 |   const int pos = scan[0]; | 
 |   int coeff_ctx = get_base_ctx_ph(levels, pos, bwl, tx_class); | 
 |   update_cdf(base_cdf_ph[coeff_ctx], AOMMIN(q_index, 3), 4); | 
 | #if CONFIG_ENTROPY_STATS | 
 |   ++td->counts->coeff_base_ph_multi[cdf_idx][coeff_ctx][AOMMIN(level, 3)]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |  | 
 |   if (q_index > NUM_BASE_LEVELS) { | 
 |     int br_ctx = get_par_br_ctx(levels, pos, bwl, tx_class); | 
 |     aom_cdf_prob *cdf_br = br_cdf_ph[br_ctx]; | 
 |     const int base_range = q_index - 1 - NUM_BASE_LEVELS; | 
 |     for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |       const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |       update_cdf(cdf_br, k, BR_CDF_SIZE); | 
 |       for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |         ++td->counts->coeff_lps_ph[lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |         if (lps == k) break; | 
 |       } | 
 | #if CONFIG_ENTROPY_STATS | 
 |       ++td->counts->coeff_lps_ph_multi[cdf_idx][br_ctx][k]; | 
 | #endif  // // CONFIG_ENTROPY_STATS | 
 |       if (k < BR_CDF_SIZE - 1) break; | 
 |     } | 
 |   } | 
 | } | 
 | void av1_update_and_record_txb_context(int plane, int block, int blk_row, | 
 |                                        int blk_col, BLOCK_SIZE plane_bsize, | 
 |                                        TX_SIZE tx_size, void *arg) { | 
 |   struct tokenize_b_args *const args = arg; | 
 |   const AV1_COMP *cpi = args->cpi; | 
 |   const AV1_COMMON *cm = &cpi->common; | 
 |   ThreadData *const td = args->td; | 
 |   MACROBLOCK *const x = &td->mb; | 
 |   MACROBLOCKD *const xd = &x->e_mbd; | 
 |   struct macroblock_plane *p = &x->plane[plane]; | 
 |   struct macroblockd_plane *pd = &xd->plane[plane]; | 
 |   const int eob = p->eobs[block]; | 
 |   const int bob_code = p->bobs[block]; | 
 |   const int block_offset = BLOCK_OFFSET(block); | 
 |   tran_low_t *qcoeff = p->qcoeff + block_offset; | 
 |   const PLANE_TYPE plane_type = pd->plane_type; | 
 |   const int is_inter = is_inter_block(xd->mi[0], xd->tree_type); | 
 |   if (eob == 1 && plane_type == 0 && | 
 |       !xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && !is_inter) { | 
 |     update_txk_array(xd, blk_row, blk_col, tx_size, DCT_DCT); | 
 |   } | 
 |   const TX_TYPE tx_type = | 
 |       av1_get_tx_type(xd, plane_type, blk_row, blk_col, tx_size, | 
 |                       is_reduced_tx_set_used(cm, plane_type)); | 
 |   if ((xd->mi[0]->fsc_mode[xd->tree_type == CHROMA_PART] && | 
 |        get_primary_tx_type(tx_type) == IDTX && plane == PLANE_TYPE_Y) || | 
 |       use_inter_fsc(cm, plane, tx_type, | 
 |                     is_inter_block(xd->mi[0], xd->tree_type))) { | 
 |     av1_update_and_record_txb_skip_context(plane, block, blk_row, blk_col, | 
 |                                            plane_bsize, tx_size, arg); | 
 |     return; | 
 |   } | 
 |   const SCAN_ORDER *const scan_order = get_scan(tx_size, tx_type); | 
 |   tran_low_t *tcoeff; | 
 |   assert(args->dry_run != DRY_RUN_COSTCOEFFS); | 
 |   if (args->dry_run == OUTPUT_ENABLED) { | 
 |     MB_MODE_INFO *mbmi = xd->mi[0]; | 
 |     TXB_CTX txb_ctx; | 
 |     get_txb_ctx(plane_bsize, tx_size, plane, | 
 |                 pd->above_entropy_context + blk_col, | 
 |                 pd->left_entropy_context + blk_row, &txb_ctx, 0); | 
 | #if CCTX_C2_DROPPED | 
 |     if (plane == AOM_PLANE_V && is_cctx_allowed(cm, xd)) { | 
 |       CctxType cctx_type = av1_get_cctx_type(xd, blk_row, blk_col); | 
 |       if (!keep_chroma_c2(cctx_type)) { | 
 |         assert(eob == 0); | 
 |         CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 |         const int txb_offset = | 
 |             x->mbmi_ext_frame | 
 |                 ->cb_offset[(plane > 0 && xd->tree_type == CHROMA_PART) ? 1 | 
 |                                                                         : 0] >> | 
 |             (MIN_TX_SIZE_LOG2 * 2); | 
 |         uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; | 
 |         uint8_t *const entropy_ctx = | 
 |             cb_coef_buff->entropy_ctx[plane] + txb_offset; | 
 |         entropy_ctx[block] = txb_ctx.txb_skip_ctx; | 
 |         eob_txb[block] = 0; | 
 |         av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, 0, | 
 |                                  blk_col, blk_row); | 
 |         return; | 
 |       } | 
 |     } | 
 | #endif  // CCTX_C2_DROPPED | 
 |     const int bwl = get_txb_bwl(tx_size); | 
 |     const int width = get_txb_wide(tx_size); | 
 |     const int height = get_txb_high(tx_size); | 
 |     const uint8_t allow_update_cdf = args->allow_update_cdf; | 
 |     const TX_SIZE txsize_ctx = get_txsize_entropy_ctx(tx_size); | 
 |     FRAME_CONTEXT *ec_ctx = xd->tile_ctx; | 
 | #if CONFIG_ENTROPY_STATS | 
 |     int cdf_idx = cm->coef_cdf_category; | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |     if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) { | 
 |       ++td->counts | 
 |             ->txb_skip[cdf_idx][txsize_ctx][txb_ctx.txb_skip_ctx][eob == 0]; | 
 |     } else { | 
 |       ++td->counts->v_txb_skip[cdf_idx][txb_ctx.txb_skip_ctx][eob == 0]; | 
 |     } | 
 | #else | 
 |     ++td->counts->txb_skip[cdf_idx][txsize_ctx][txb_ctx.txb_skip_ctx][eob == 0]; | 
 | #endif | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |     if (allow_update_cdf) { | 
 | #if CONFIG_CONTEXT_DERIVATION | 
 |       int txb_skip_ctx = txb_ctx.txb_skip_ctx; | 
 |       if (plane == AOM_PLANE_Y || plane == AOM_PLANE_U) { | 
 | #if CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |         const int pred_mode_ctx = | 
 |             (is_inter || mbmi->fsc_mode[xd->tree_type == CHROMA_PART]) ? 1 : 0; | 
 |         update_cdf( | 
 |             ec_ctx->txb_skip_cdf[pred_mode_ctx][txsize_ctx][txb_skip_ctx], | 
 |             eob == 0, 2); | 
 | #else | 
 |         update_cdf(ec_ctx->txb_skip_cdf[txsize_ctx][txb_skip_ctx], eob == 0, 2); | 
 | #endif  // CONFIG_TX_SKIP_FLAG_MODE_DEP_CTX | 
 |       } else { | 
 |         txb_skip_ctx += | 
 |             (x->plane[AOM_PLANE_U].eobs[block] ? V_TXB_SKIP_CONTEXT_OFFSET : 0); | 
 |         update_cdf(ec_ctx->v_txb_skip_cdf[txb_skip_ctx], eob == 0, 2); | 
 |       } | 
 | #else | 
 |         update_cdf(ec_ctx->txb_skip_cdf[txsize_ctx][txb_ctx.txb_skip_ctx], | 
 |                    eob == 0, 2); | 
 | #endif  // CONFIG_CONTEXT_DERIVATION | 
 |     } | 
 |  | 
 |     CB_COEFF_BUFFER *cb_coef_buff = x->cb_coef_buff; | 
 |     const int txb_offset = | 
 |         x->mbmi_ext_frame->cb_offset[plane] / (TX_SIZE_W_MIN * TX_SIZE_H_MIN); | 
 |     uint16_t *eob_txb = cb_coef_buff->eobs[plane] + txb_offset; | 
 |     uint8_t *const entropy_ctx = cb_coef_buff->entropy_ctx[plane] + txb_offset; | 
 |     entropy_ctx[block] = txb_ctx.txb_skip_ctx; | 
 |     eob_txb[block] = eob; | 
 |     uint16_t *bob_txb = cb_coef_buff->bobs[plane] + txb_offset; | 
 |     bob_txb[block] = bob_code; | 
 |  | 
 |     const int skip_cctx = is_inter ? 0 : (eob == 1); | 
 |     if (is_cctx_allowed(cm, xd) && plane == AOM_PLANE_U && !skip_cctx && | 
 |         eob > 0) | 
 |       update_cctx_type_count(cm, xd, blk_row, blk_col, tx_size, td->counts, | 
 |                              allow_update_cdf); | 
 |     if (eob == 0) { | 
 |       av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, 0, blk_col, | 
 |                                blk_row); | 
 |       return; | 
 |     } | 
 |     const int segment_id = mbmi->segment_id; | 
 |     const int seg_eob = av1_get_tx_eob(&cpi->common.seg, segment_id, tx_size); | 
 |     tran_low_t *tcoeff_txb = | 
 |         cb_coef_buff->tcoeff[plane] + x->mbmi_ext_frame->cb_offset[plane]; | 
 |     tcoeff = tcoeff_txb + block_offset; | 
 |     memcpy(tcoeff, qcoeff, sizeof(*tcoeff) * seg_eob); | 
 |  | 
 |     uint8_t levels_buf[TX_PAD_2D]; | 
 |     uint8_t *const levels = set_levels(levels_buf, width); | 
 |     av1_txb_init_levels(tcoeff, width, height, levels); | 
 |     update_tx_type_count(cpi, cm, xd, blk_row, blk_col, plane, tx_size, | 
 |                          td->counts, allow_update_cdf, eob, bob_code, | 
 |                          0 /* is_fsc */); | 
 |     const TX_CLASS tx_class = tx_type_to_class[get_primary_tx_type(tx_type)]; | 
 |     const int16_t *const scan = scan_order->scan; | 
 |  | 
 |     // record tx type usage | 
 |     td->rd_counts.tx_type_used[tx_size][get_primary_tx_type(tx_type)]++; | 
 |  | 
 | #if CONFIG_ENTROPY_STATS | 
 |     av1_update_eob_context(cdf_idx, eob, tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                            is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                            plane_type, ec_ctx, td->counts, allow_update_cdf); | 
 | #else | 
 |       av1_update_eob_context(eob, tx_size, | 
 | #if CONFIG_EOB_POS_LUMA | 
 |                              is_inter, | 
 | #endif  // CONFIG_EOB_POS_LUMA | 
 |                              plane_type, ec_ctx, allow_update_cdf); | 
 | #endif | 
 |  | 
 |     DECLARE_ALIGNED(16, int8_t, coeff_contexts[MAX_TX_SQUARE]); | 
 |     av1_get_nz_map_contexts(levels, scan, eob, tx_size, tx_class, | 
 |                             coeff_contexts, plane); | 
 |  | 
 |     // select quantizer when TCQ is on, 0 for Q0 and 1 for Q1 | 
 |     bool enable_parity_hiding = | 
 |         cm->features.allow_parity_hiding && | 
 |         !xd->lossless[xd->mi[0]->segment_id] && plane == PLANE_TYPE_Y && | 
 |         ph_allowed_tx_types[get_primary_tx_type(tx_type)] && (eob > PHTHRESH); | 
 | #if CONFIG_TCQ | 
 |     int tcq_mode = tcq_enable(cm->features.tcq_mode, plane, tx_class); | 
 |     int state = tcq_init_state(tcq_mode); | 
 | #endif  // CONFIG_TCQ | 
 |  | 
 |     for (int c = eob - 1; c > 0; --c) { | 
 |       const int pos = scan[c]; | 
 |       const int coeff_ctx = coeff_contexts[pos]; | 
 |       const tran_low_t v = qcoeff[pos]; | 
 |       const tran_low_t level = abs(v); | 
 | #if CONFIG_TCQ | 
 |       const int q_i = tcq_quant(state); | 
 | #endif  // CONFIG_TCQ | 
 |       if (allow_update_cdf) { | 
 |         if (c == eob - 1) { | 
 |           assert(coeff_ctx < 4); | 
 |           const int row = pos >> bwl; | 
 |           const int col = pos - (row << bwl); | 
 |           int limits = get_lf_limits(row, col, tx_class, plane); | 
 |           if (plane > 0) { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_eob_uv_cdf[coeff_ctx], | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                          LF_BASE_SYMBOLS - 1); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_eob_uv_cdf[coeff_ctx], | 
 |                          AOMMIN(level, 3) - 1, 3); | 
 |             } | 
 |           } else { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_eob_cdf[txsize_ctx][coeff_ctx], | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                          LF_BASE_SYMBOLS - 1); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_eob_cdf[txsize_ctx][coeff_ctx], | 
 |                          AOMMIN(level, 3) - 1, 3); | 
 |             } | 
 |           } | 
 |         } else { | 
 |           const int row = pos >> bwl; | 
 |           const int col = pos - (row << bwl); | 
 |           int limits = get_lf_limits(row, col, tx_class, plane); | 
 |           if (plane > 0) { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                      [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1), LF_BASE_SYMBOLS); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                   [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, 3), 4); | 
 |             } | 
 |           } else { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_cdf[txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                   [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1), LF_BASE_SYMBOLS); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_cdf[txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, 3), 4); | 
 |             } | 
 |           } | 
 |         } | 
 |       } | 
 |       if (c == eob - 1) { | 
 |         assert(coeff_ctx < 4); | 
 |         assert(level > 0); | 
 | #if CONFIG_ENTROPY_STATS | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (plane > 0) { | 
 |           if (limits) { | 
 |             ++td->counts->coeff_base_lf_eob_multi_uv | 
 |                   [cdf_idx][coeff_ctx][AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_eob_multi_uv[cdf_idx][coeff_ctx] | 
 |                                                  [AOMMIN(level, 3) - 1]; | 
 |           } | 
 |         } else { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_eob_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 |                                            [AOMMIN(level, LF_BASE_SYMBOLS - 1) - | 
 |                                             1]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_eob_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 |                                               [AOMMIN(level, 3) - 1]; | 
 |           } | 
 |         } | 
 |       } else { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (plane > 0) { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_multi_uv[cdf_idx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                           [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                           [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_multi_uv[cdf_idx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                              [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                              [AOMMIN(level, 3)]; | 
 |           } | 
 |         } else { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                        [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                        [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                           [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                           [AOMMIN(level, 3)]; | 
 |           } | 
 |         } | 
 | #endif | 
 |       } | 
 |       const int row = pos >> bwl; | 
 |       const int col = pos - (row << bwl); | 
 |       int limits = get_lf_limits(row, col, tx_class, plane); | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - LF_NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_lf_uv_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps_lf[lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_lf_multi_uv[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_uv_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][lps] | 
 |                                        [br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_multi_uv[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - LF_NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_lf_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps_lf[lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_lf_multi[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][lps] | 
 |                                        [br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_multi[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } | 
 |       } | 
 | #if CONFIG_TCQ | 
 |       state = tcq_next_state(state, level); | 
 | #endif  // CONFIG_TCQ | 
 |     } | 
 |  | 
 |     bool is_hidden = false; | 
 |     int num_nz = 0; | 
 |     for (int c = eob - 1; c > 0; --c) { | 
 |       const int pos = scan[c]; | 
 |       num_nz += !!qcoeff[pos]; | 
 |     } | 
 |     is_hidden = enable_parity_hiding && num_nz >= PHTHRESH; | 
 |     if (is_hidden) { | 
 |       if (allow_update_cdf) { | 
 |         const int level = abs(qcoeff[scan[0]]); | 
 |         update_coeff_ctx_hiden(tx_class, scan, bwl, levels, level, | 
 |                                ec_ctx->coeff_base_ph_cdf, | 
 |                                ec_ctx->coeff_br_ph_cdf | 
 | #if CONFIG_ENTROPY_STATS | 
 |                                , | 
 |                                td, cdf_idx | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |         ); | 
 |       } | 
 |     } else { | 
 |       int c = 0; | 
 |       const int pos = scan[c]; | 
 |       const int coeff_ctx = coeff_contexts[pos]; | 
 |       const tran_low_t v = qcoeff[pos]; | 
 |       const tran_low_t level = abs(v); | 
 |  | 
 |       if (allow_update_cdf) { | 
 |         if (c == eob - 1) { | 
 |           assert(coeff_ctx < 4); | 
 |           const int row = pos >> bwl; | 
 |           const int col = pos - (row << bwl); | 
 |           int limits = get_lf_limits(row, col, tx_class, plane); | 
 |           if (plane > 0) { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_eob_uv_cdf[coeff_ctx], | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                          LF_BASE_SYMBOLS - 1); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_eob_uv_cdf[coeff_ctx], | 
 |                          AOMMIN(level, 3) - 1, 3); | 
 |             } | 
 |           } else { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_eob_cdf[txsize_ctx][coeff_ctx], | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1, | 
 |                          LF_BASE_SYMBOLS - 1); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_eob_cdf[txsize_ctx][coeff_ctx], | 
 |                          AOMMIN(level, 3) - 1, 3); | 
 |             } | 
 |           } | 
 |         } else { | 
 |           const int row = pos >> bwl; | 
 |           const int col = pos - (row << bwl); | 
 |           int limits = get_lf_limits(row, col, tx_class, plane); | 
 | #if CONFIG_TCQ | 
 |           int q_i = tcq_quant(state); | 
 | #endif  // CONFIG_TCQ | 
 |           if (plane > 0) { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                      [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1), LF_BASE_SYMBOLS); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_uv_cdf[coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                   [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, 3), 4); | 
 |             } | 
 |           } else { | 
 |             if (limits) { | 
 |               update_cdf(ec_ctx->coeff_base_lf_cdf[txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                   [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, LF_BASE_SYMBOLS - 1), LF_BASE_SYMBOLS); | 
 |             } else { | 
 |               update_cdf(ec_ctx->coeff_base_cdf[txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                                [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                          , | 
 |                          AOMMIN(level, 3), 4); | 
 |             } | 
 |           } | 
 |         } | 
 |       } | 
 |       if (c == eob - 1) { | 
 |         assert(coeff_ctx < 4); | 
 | #if CONFIG_ENTROPY_STATS | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         if (plane > 0) { | 
 |           if (limits) { | 
 |             ++td->counts->coeff_base_lf_eob_multi_uv | 
 |                   [cdf_idx][coeff_ctx][AOMMIN(level, LF_BASE_SYMBOLS - 1) - 1]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_eob_multi_uv[cdf_idx][coeff_ctx] | 
 |                                                  [AOMMIN(level, 3) - 1]; | 
 |           } | 
 |         } else { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_eob_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 |                                            [AOMMIN(level, LF_BASE_SYMBOLS - 1) - | 
 |                                             1]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_eob_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 |                                               [AOMMIN(level, 3) - 1]; | 
 |           } | 
 |         } | 
 |       } else { | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         int limits = get_lf_limits(row, col, tx_class, plane); | 
 |         int q_i = tcq_quant(state); | 
 |         if (plane > 0) { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_multi_uv[cdf_idx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                           [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                           [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_multi_uv[cdf_idx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                              [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                              [AOMMIN(level, 3)]; | 
 |           } | 
 |         } else { | 
 |           if (limits) { | 
 |             ++td->counts | 
 |                   ->coeff_base_lf_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                        [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                        [AOMMIN(level, LF_BASE_SYMBOLS - 1)]; | 
 |           } else { | 
 |             ++td->counts->coeff_base_multi[cdf_idx][txsize_ctx][coeff_ctx] | 
 | #if CONFIG_TCQ | 
 |                                           [q_i] | 
 | #endif  // CONFIG_TCQ | 
 |                                           [AOMMIN(level, 3)]; | 
 |           } | 
 |         } | 
 | #endif | 
 |       } | 
 |       const int row = pos >> bwl; | 
 |       const int col = pos - (row << bwl); | 
 |       int limits = get_lf_limits(row, col, tx_class, plane); | 
 |       if (plane > 0) { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - LF_NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_lf_ctx_chroma(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_lf_uv_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps_lf[lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_lf_multi_uv[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_ctx_chroma(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_uv_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][lps] | 
 |                                        [br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_multi_uv[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } | 
 |       } else { | 
 |         if (limits) { | 
 |           if (level > LF_NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - LF_NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_lf_ctx(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_lf_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps_lf[lps][br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_lf_multi[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } else { | 
 |           if (level > NUM_BASE_LEVELS) { | 
 |             const int base_range = level - 1 - NUM_BASE_LEVELS; | 
 |             const int br_ctx = get_br_ctx(levels, pos, bwl, tx_class); | 
 |             for (int idx = 0; idx < COEFF_BASE_RANGE; idx += BR_CDF_SIZE - 1) { | 
 |               const int k = AOMMIN(base_range - idx, BR_CDF_SIZE - 1); | 
 |               if (allow_update_cdf) { | 
 |                 update_cdf(ec_ctx->coeff_br_cdf[br_ctx], k, BR_CDF_SIZE); | 
 |               } | 
 |               for (int lps = 0; lps < BR_CDF_SIZE - 1; lps++) { | 
 | #if CONFIG_ENTROPY_STATS | 
 |                 ++td->counts->coeff_lps[AOMMIN(txsize_ctx, TX_32X32)][lps] | 
 |                                        [br_ctx][lps == k]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |                 if (lps == k) break; | 
 |               } | 
 | #if CONFIG_ENTROPY_STATS | 
 |               ++td->counts->coeff_lps_multi[cdf_idx][br_ctx][k]; | 
 | #endif | 
 |               if (k < BR_CDF_SIZE - 1) break; | 
 |             } | 
 |           } | 
 |         } | 
 |       } | 
 |     } | 
 |     for (int c = 0; c < eob; ++c) { | 
 |       const tran_low_t v = tcoeff[scan[c]]; | 
 |       const tran_low_t level = abs(v); | 
 |       const int dc_sign = (v < 0) ? 1 : 0; | 
 |       if (level) { | 
 |         const int pos = scan[c]; | 
 |         const int row = pos >> bwl; | 
 |         const int col = pos - (row << bwl); | 
 |         const bool dc_2dtx = (c == 0); | 
 |         const bool dc_hor = (col == 0) && tx_class == TX_CLASS_HORIZ; | 
 |         const bool dc_ver = (row == 0) && tx_class == TX_CLASS_VERT; | 
 |         if (dc_2dtx || dc_hor || dc_ver) { | 
 |           const int dc_sign_ctx = dc_2dtx ? txb_ctx.dc_sign_ctx : 0; | 
 | #if CONFIG_ENTROPY_STATS | 
 |           if (allow_update_cdf) { | 
 |             const int dc_ph_group = is_hidden ? 1 : 0; | 
 |             if (plane == AOM_PLANE_V) { | 
 |               ++td->counts->v_dc_sign[cdf_idx][xd->tmp_sign[pos]][dc_sign_ctx] | 
 |                                      [dc_sign]; | 
 |             } else { | 
 |               ++td->counts->dc_sign[cdf_idx][plane_type][dc_ph_group] | 
 |                                    [dc_sign_ctx][dc_sign]; | 
 |             } | 
 |           } | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           if (allow_update_cdf) { | 
 |             if (plane == AOM_PLANE_V) { | 
 |               update_cdf(ec_ctx->v_dc_sign_cdf[xd->tmp_sign[pos]][dc_sign_ctx], | 
 |                          dc_sign, 2); | 
 |             } else { | 
 |               const int dc_ph_group = is_hidden ? 1 : 0; | 
 |               update_cdf( | 
 |                   ec_ctx->dc_sign_cdf[plane_type][dc_ph_group][dc_sign_ctx], | 
 |                   dc_sign, 2); | 
 |             } | 
 |           } | 
 |           if (dc_2dtx) entropy_ctx[block] |= dc_sign_ctx << DC_SIGN_CTX_SHIFT; | 
 |         } | 
 |       } | 
 |     } | 
 | #if CONFIG_CONTEXT_DERIVATION && !CONFIG_CTX_V_AC_SIGN | 
 |     if (allow_update_cdf && plane == AOM_PLANE_V) { | 
 |       for (int c = eob - 1; c >= 1; --c) { | 
 |         int pos = scan[c]; | 
 |         if (tcoeff[pos] != 0) { | 
 |           int ac_sign = (tcoeff[pos] < 0) ? 1 : 0; | 
 | #if CONFIG_ENTROPY_STATS | 
 |           ++td->counts->v_ac_sign[cdf_idx][xd->tmp_sign[pos]][ac_sign]; | 
 | #endif  // CONFIG_ENTROPY_STATS | 
 |           update_cdf(ec_ctx->v_ac_sign_cdf[xd->tmp_sign[pos]], ac_sign, 2); | 
 |         } | 
 |       } | 
 |     } | 
 | #endif  // CONFIG_CONTEXT_DERIVATION && !CONFIG_CTX_V_AC_SIGN | 
 |   } else { | 
 |     tcoeff = qcoeff; | 
 |   } | 
 |   const uint8_t cul_level = | 
 |       av1_get_txb_entropy_context(tcoeff, scan_order, eob); | 
 |   av1_set_entropy_contexts(xd, pd, plane, plane_bsize, tx_size, cul_level, | 
 |                            blk_col, blk_row); | 
 | } | 
 |  | 
 | #if CONFIG_NEW_TX_PARTITION | 
 | // Update context for each intra txfm block. We put Luma plane handling | 
 | // separately because the txfm block derivation is different from Chroma plane. | 
 | void av1_update_intra_mb_txb_context(const AV1_COMP *cpi, ThreadData *td, | 
 |                                      RUN_TYPE dry_run, BLOCK_SIZE bsize, | 
 |                                      uint8_t allow_update_cdf) { | 
 |   const AV1_COMMON *const cm = &cpi->common; | 
 |   const int num_planes = av1_num_planes(cm); | 
 |   MACROBLOCK *const x = &td->mb; | 
 |   MACROBLOCKD *const xd = &x->e_mbd; | 
 |   MB_MODE_INFO *const mbmi = xd->mi[0]; | 
 |   struct tokenize_b_args arg = { cpi, td, 0, allow_update_cdf, dry_run }; | 
 |   if (mbmi->skip_txfm[xd->tree_type == CHROMA_PART]) { | 
 |     assert(bsize == mbmi->sb_type[av1_get_sdp_idx(xd->tree_type)]); | 
 |     av1_reset_entropy_context(xd, bsize, num_planes); | 
 |     return; | 
 |   } | 
 |   const int plane_start = get_partition_plane_start(xd->tree_type); | 
 |   const int plane_end = get_partition_plane_end(xd->tree_type, num_planes); | 
 |   for (int plane = plane_start; plane < plane_end; ++plane) { | 
 |     const struct macroblockd_plane *const pd = &xd->plane[plane]; | 
 |     const int ss_x = pd->subsampling_x; | 
 |     const int ss_y = pd->subsampling_y; | 
 |     const BLOCK_SIZE plane_bsize = | 
 |         get_mb_plane_block_size(xd, mbmi, plane, ss_x, ss_y); | 
 |  | 
 |     if (plane == AOM_PLANE_Y && !xd->lossless[mbmi->segment_id]) { | 
 |       const TX_SIZE max_tx_size = max_txsize_rect_lookup[plane_bsize]; | 
 |       get_tx_partition_sizes(mbmi->tx_partition_type[0], max_tx_size, | 
 |                              &mbmi->txb_pos, mbmi->sub_txs); | 
 |       // If mb_to_right_edge is < 0 we are in a situation in which | 
 |       // the current block size extends into the UMV and we won't | 
 |       // visit the sub blocks that are wholly within the UMV. | 
 |       const int max_blocks_wide = max_block_wide(xd, plane_bsize, plane); | 
 |       const int max_blocks_high = max_block_high(xd, plane_bsize, plane); | 
 |       const BLOCK_SIZE max_unit_bsize = get_plane_block_size( | 
 |           BLOCK_64X64, pd->subsampling_x, pd->subsampling_y); | 
 |       const int mu_blocks_wide = | 
 |           AOMMIN(mi_size_wide[max_unit_bsize], max_blocks_wide); | 
 |       const int mu_blocks_high = | 
 |           AOMMIN(mi_size_high[max_unit_bsize], max_blocks_high); | 
 |  | 
 |       // Keep track of the row and column of the blocks we use so that we know | 
 |       // if we are in the unrestricted motion border. | 
 |       int i = 0; | 
 |       for (int r = 0; r < max_blocks_high; r += mu_blocks_high) { | 
 |         const int unit_height = AOMMIN(mu_blocks_high + r, max_blocks_high); | 
 |         // Skip visiting the sub blocks that are wholly within the UMV. | 
 |         for (int c = 0; c < max_blocks_wide; c += mu_blocks_wide) { | 
 |           const int unit_width = AOMMIN(mu_blocks_wide + c, max_blocks_wide); | 
 |  | 
 |           for (int txb_idx = 0; txb_idx < mbmi->txb_pos.n_partitions; | 
 |                ++txb_idx) { | 
 |             TX_SIZE sub_tx_size = mbmi->sub_txs[txb_idx]; | 
 |             mbmi->txb_idx = txb_idx; | 
 |             const uint8_t txw_unit = tx_size_wide_unit[sub_tx_size]; | 
 |             const uint8_t txh_unit = tx_size_high_unit[sub_tx_size]; | 
 |             const int step = txw_unit * txh_unit; | 
 |  | 
 |             int blk_row = r + mbmi->txb_pos.row_offset[txb_idx]; | 
 |             int blk_col = c + mbmi->txb_pos.col_offset[txb_idx]; | 
 |  | 
 |             if (blk_row >= unit_height || blk_col >= unit_width) continue; | 
 |  | 
 |             mbmi->tx_size = sub_tx_size; | 
 |             av1_update_and_record_txb_context(plane, i, blk_row, blk_col, | 
 |                                               plane_bsize, sub_tx_size, &arg); | 
 |             i += step; | 
 |           } | 
 |         } | 
 |       } | 
 |     } else { | 
 |       if (plane && !xd->is_chroma_ref) break; | 
 |  | 
 |       av1_foreach_transformed_block_in_plane( | 
 |           xd, plane_bsize, plane, av1_update_and_record_txb_context, &arg); | 
 |     } | 
 |   } | 
 | } | 
 | #else | 
 |   void av1_update_intra_mb_txb_context(const AV1_COMP *cpi, ThreadData *td, | 
 |                                        RUN_TYPE dry_run, BLOCK_SIZE bsize, | 
 |                                        uint8_t allow_update_cdf) { | 
 |     const AV1_COMMON *const cm = &cpi->common; | 
 |     const int num_planes = av1_num_planes(cm); | 
 |     MACROBLOCK *const x = &td->mb; | 
 |     MACROBLOCKD *const xd = &x->e_mbd; | 
 |     MB_MODE_INFO *const mbmi = xd->mi[0]; | 
 |     struct tokenize_b_args arg = { cpi, td, 0, allow_update_cdf, dry_run }; | 
 |     if (mbmi->skip_txfm[xd->tree_type == CHROMA_PART]) { | 
 |       assert(bsize == mbmi->sb_type[av1_get_sdp_idx(xd->tree_type)]); | 
 |       av1_reset_entropy_context(xd, bsize, num_planes); | 
 |       return; | 
 |     } | 
 |     const int plane_start = get_partition_plane_start(xd->tree_type); | 
 |     const int plane_end = get_partition_plane_end(xd->tree_type, num_planes); | 
 |     for (int plane = plane_start; plane < plane_end; ++plane) { | 
 |       if (plane && !xd->is_chroma_ref) break; | 
 |       const struct macroblockd_plane *const pd = &xd->plane[plane]; | 
 |       const int ss_x = pd->subsampling_x; | 
 |       const int ss_y = pd->subsampling_y; | 
 |       const BLOCK_SIZE plane_bsize = | 
 |           get_mb_plane_block_size(xd, mbmi, plane, ss_x, ss_y); | 
 |       av1_foreach_transformed_block_in_plane( | 
 |           xd, plane_bsize, plane, av1_update_and_record_txb_context, &arg); | 
 |     } | 
 |   } | 
 | #endif  // CONFIG_NEW_TX_PARTITION | 
 |  | 
 | CB_COEFF_BUFFER *av1_get_cb_coeff_buffer(const struct AV1_COMP *cpi, int mi_row, | 
 |                                          int mi_col) { | 
 |   const AV1_COMMON *const cm = &cpi->common; | 
 |   const int mib_size_log2 = cm->mib_size_log2; | 
 |   const int stride = (cm->mi_params.mi_cols >> mib_size_log2) + 1; | 
 |   const int offset = | 
 |       (mi_row >> mib_size_log2) * stride + (mi_col >> mib_size_log2); | 
 |   return cpi->coeff_buffer_base + offset; | 
 | } |