| /* |
| * Copyright (c) 2016, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. 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 www.aomedia.org/license/patent. |
| */ |
| |
| #ifndef AOM_AV1_ENCODER_ENCODEMB_H_ |
| #define AOM_AV1_ENCODER_ENCODEMB_H_ |
| |
| #include "config/aom_config.h" |
| |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/txb_common.h" |
| #include "av1/encoder/av1_quantize.h" |
| #include "av1/encoder/block.h" |
| #include "av1/encoder/tokenize.h" |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| enum { |
| AV1_XFORM_QUANT_FP = 0, |
| AV1_XFORM_QUANT_B = 1, |
| AV1_XFORM_QUANT_DC = 2, |
| AV1_XFORM_QUANT_SKIP_QUANT, |
| AV1_XFORM_QUANT_TYPES, |
| } UENUM1BYTE(AV1_XFORM_QUANT); |
| |
| // TODO(any): Merge OPT_TYPe and TRELLLIS_OPT_TYPE |
| // Available optimization types to optimize the quantized coefficients. |
| enum { |
| NONE_OPT = 0, // No optimization. |
| TRELLIS_OPT = 1, // Trellis optimization. See `av1_optimize_b()`. |
| DROPOUT_OPT = 2, // Dropout optimization. See `av1_dropout_qcoeff()`. |
| TRELLIS_DROPOUT_OPT = 3 // Perform dropout after trellis optimization. |
| } UENUM1BYTE(OPT_TYPE); |
| |
| enum { |
| NO_TRELLIS_OPT, // No trellis optimization |
| FULL_TRELLIS_OPT, // Trellis optimization in all stages |
| FINAL_PASS_TRELLIS_OPT, // Trellis optimization in only the final encode pass |
| NO_ESTIMATE_YRD_TRELLIS_OPT // Disable trellis in estimate_yrd_for_sb |
| } UENUM1BYTE(TRELLIS_OPT_TYPE); |
| |
| struct optimize_ctx { |
| ENTROPY_CONTEXT ta[MAX_MB_PLANE][MAX_MIB_SIZE]; |
| ENTROPY_CONTEXT tl[MAX_MB_PLANE][MAX_MIB_SIZE]; |
| }; |
| |
| struct encode_b_args { |
| const struct AV1_COMP *cpi; |
| MACROBLOCK *x; |
| struct optimize_ctx *ctx; |
| int8_t *skip; |
| ENTROPY_CONTEXT *ta; |
| ENTROPY_CONTEXT *tl; |
| RUN_TYPE dry_run; |
| TRELLIS_OPT_TYPE enable_optimize_b; |
| }; |
| |
| void av1_encode_sb(const struct AV1_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, |
| RUN_TYPE dry_run); |
| |
| void av1_foreach_transformed_block_in_plane( |
| const MACROBLOCKD *const xd, BLOCK_SIZE plane_bsize, int plane, |
| foreach_transformed_block_visitor visit, void *arg); |
| |
| void av1_encode_sby_pass1(struct AV1_COMP *cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize); |
| |
| void av1_setup_xform(const AV1_COMMON *cm, MACROBLOCK *x, TX_SIZE tx_size, |
| TX_TYPE tx_type, TxfmParam *txfm_param); |
| void av1_setup_quant(TX_SIZE tx_size, int use_optimize_b, int xform_quant_idx, |
| int use_quant_b_adapt, QUANT_PARAM *qparam); |
| void av1_setup_qmatrix(const CommonQuantParams *quant_params, |
| const MACROBLOCKD *xd, int plane, TX_SIZE tx_size, |
| TX_TYPE tx_type, QUANT_PARAM *qparam); |
| |
| void av1_xform_dc_only(MACROBLOCK *x, int plane, int block, |
| TxfmParam *txfm_param, int64_t per_px_mean); |
| |
| void av1_xform_quant(MACROBLOCK *x, int plane, int block, int blk_row, |
| int blk_col, BLOCK_SIZE plane_bsize, TxfmParam *txfm_param, |
| QUANT_PARAM *qparam); |
| |
| void av1_xform(MACROBLOCK *x, int plane, int block, int blk_row, int blk_col, |
| BLOCK_SIZE plane_bsize, TxfmParam *txfm_param); |
| |
| void av1_quant(MACROBLOCK *x, int plane, int block, TxfmParam *txfm_param, |
| QUANT_PARAM *qparam); |
| |
| int av1_optimize_b(const struct AV1_COMP *cpi, MACROBLOCK *mb, int plane, |
| int block, TX_SIZE tx_size, TX_TYPE tx_type, |
| const TXB_CTX *const txb_ctx, int *rate_cost); |
| |
| // This function can be used as (i) a further optimization to reduce the |
| // redundancy of quantized coefficients (a.k.a., `qcoeff`) after trellis |
| // optimization, or (ii) an alternative to trellis optimization in high-speed |
| // compression mode (e.g., real-time mode under speed-6) due to its LOW time |
| // complexity. The rational behind is to drop out the may-be redundant quantized |
| // coefficient which is among a bunch of zeros. NOTE: This algorithm is not as |
| // accurate as trellis optimization since the hyper-parameters are hard-coded |
| // instead of dynamic search. More adaptive logic may improve the performance. |
| // This function should be applied to all or partical block cells. |
| // Inputs: |
| // mb: Pointer to the MACROBLOCK to perform dropout on. |
| // plane: Index of the plane to which the target block belongs. |
| // block: Index of the target block. |
| // tx_size: Transform size of the target block. |
| // tx_type: Transform type of the target block. This field is particularly |
| // used to find out the scan order of the block. |
| // qindex: Quantization index used for target block. In general, all blocks |
| // in a same plane share the same quantization index. This field is |
| // particularly used to determine how many zeros should be used to |
| // drop out a coefficient. |
| // Returns: |
| // Nothing will be returned, but `qcoeff`, `dqcoeff`, `eob`, as well as |
| // `txb_entropy_ctx`, which `mb` points to, may be modified by this function. |
| void av1_dropout_qcoeff(MACROBLOCK *mb, int plane, int block, TX_SIZE tx_size, |
| TX_TYPE tx_type, int qindex); |
| |
| void av1_subtract_block(const MACROBLOCKD *xd, int rows, int cols, |
| int16_t *diff, ptrdiff_t diff_stride, |
| const uint8_t *src8, ptrdiff_t src_stride, |
| const uint8_t *pred8, ptrdiff_t pred_stride); |
| |
| void av1_subtract_txb(MACROBLOCK *x, int plane, BLOCK_SIZE plane_bsize, |
| int blk_col, int blk_row, TX_SIZE tx_size); |
| |
| void av1_subtract_plane(MACROBLOCK *x, BLOCK_SIZE plane_bsize, int plane); |
| |
| static INLINE void av1_set_txb_context(MACROBLOCK *x, int plane, int block, |
| TX_SIZE tx_size, ENTROPY_CONTEXT *a, |
| ENTROPY_CONTEXT *l) { |
| const uint8_t ctx = x->plane[plane].txb_entropy_ctx[block]; |
| memset(a, ctx, tx_size_wide_unit[tx_size] * sizeof(*a)); |
| memset(l, ctx, tx_size_high_unit[tx_size] * sizeof(*l)); |
| } |
| |
| void av1_encode_block_intra(int plane, int block, int blk_row, int blk_col, |
| BLOCK_SIZE plane_bsize, TX_SIZE tx_size, void *arg); |
| |
| void av1_encode_intra_block_plane(const struct AV1_COMP *cpi, MACROBLOCK *x, |
| BLOCK_SIZE bsize, int plane, RUN_TYPE dry_run, |
| TRELLIS_OPT_TYPE enable_optimize_b); |
| |
| static INLINE int is_trellis_used(TRELLIS_OPT_TYPE optimize_b, |
| RUN_TYPE dry_run) { |
| if (optimize_b == NO_TRELLIS_OPT) return false; |
| if (optimize_b == FINAL_PASS_TRELLIS_OPT && dry_run != OUTPUT_ENABLED) |
| return false; |
| return true; |
| } |
| |
| // Scaling terms (precision of 12 bits) to perform tx-size specific |
| // normalization that is used in DCT_DCT forward transform. |
| // For transform blocks of 1:2 and 2:1 - sqrt(2) normalization is used |
| // For transform blocks of 1:4 and 4:1 - factor of 2 is used |
| // For transform blocks TX_8x8 and below - an additional factor of 2 is used |
| // For transform blocks max(width,height)=64 - currently not supported |
| |
| static const uint16_t dc_coeff_scale[TX_SIZES_ALL] = { |
| 1024, 2048, 4096, 4096, 0, 1448, 1448, 2896, 2896, 2896, |
| 2896, 0, 0, 2048, 2048, 4096, 4096, 0, 0 |
| }; |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_ENCODER_ENCODEMB_H_ |