| /* |
| * 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_AV1_QUANTIZE_H_ |
| #define AOM_AV1_ENCODER_AV1_QUANTIZE_H_ |
| |
| #include <stdbool.h> |
| |
| #include "config/aom_config.h" |
| |
| #include "av1/common/quant_common.h" |
| #include "av1/common/scan.h" |
| #include "av1/encoder/block.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| typedef struct QUANT_PARAM { |
| int log_scale; |
| TX_SIZE tx_size; |
| const qm_val_t *qmatrix; |
| const qm_val_t *iqmatrix; |
| int use_quant_b_adapt; |
| int use_optimize_b; |
| int xform_quant_idx; |
| } QUANT_PARAM; |
| |
| typedef void (*AV1_QUANT_FACADE)(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const MACROBLOCK_PLANE *p, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, |
| const QUANT_PARAM *qparam); |
| |
| // The QUANTS structure is used only for internal quantizer setup in |
| // av1_quantize.c. |
| // All of its fields use the same coefficient shift/scaling at TX. |
| typedef struct { |
| // 0: dc 1: ac 2-8: ac repeated to SIMD width |
| DECLARE_ALIGNED(16, int16_t, y_quant[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, y_quant_shift[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, y_zbin[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, y_round[QINDEX_RANGE][8]); |
| |
| // TODO(jingning): in progress of re-working the quantization. will decide |
| // if we want to deprecate the current use of y_quant. |
| DECLARE_ALIGNED(16, int16_t, y_quant_fp[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, u_quant_fp[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_quant_fp[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, y_round_fp[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, u_round_fp[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_round_fp[QINDEX_RANGE][8]); |
| |
| DECLARE_ALIGNED(16, int16_t, u_quant[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_quant[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, u_quant_shift[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_quant_shift[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, u_zbin[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_zbin[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, u_round[QINDEX_RANGE][8]); |
| DECLARE_ALIGNED(16, int16_t, v_round[QINDEX_RANGE][8]); |
| } QUANTS; |
| |
| // The Dequants structure is used only for internal quantizer setup in |
| // av1_quantize.c. |
| // Fields are suffixed according to whether or not they're expressed in |
| // the same coefficient shift/precision as TX or a fixed Q3 format. |
| typedef struct { |
| DECLARE_ALIGNED(16, int16_t, |
| y_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width |
| DECLARE_ALIGNED(16, int16_t, |
| u_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width |
| DECLARE_ALIGNED(16, int16_t, |
| v_dequant_QTX[QINDEX_RANGE][8]); // 8: SIMD width |
| } Dequants; |
| |
| // The DeltaQuantParams structure holds the dc/ac deltaq parameters. |
| typedef struct { |
| int y_dc_delta_q; |
| int u_dc_delta_q; |
| int u_ac_delta_q; |
| int v_dc_delta_q; |
| int v_ac_delta_q; |
| } DeltaQuantParams; |
| |
| typedef struct { |
| // Quantization parameters for internal quantizer setup. |
| QUANTS quants; |
| // Dequantization parameters for internal quantizer setup. |
| Dequants dequants; |
| // Deltaq parameters to track the state of the dc/ac deltaq parameters in |
| // cm->quant_params. It is used to decide whether the quantizer tables need |
| // to be re-initialized. |
| DeltaQuantParams prev_deltaq_params; |
| } EncQuantDequantParams; |
| |
| struct AV1_COMP; |
| struct AV1Common; |
| |
| void av1_frame_init_quantizer(struct AV1_COMP *cpi); |
| |
| void av1_init_plane_quantizers(const struct AV1_COMP *cpi, MACROBLOCK *x, |
| int segment_id, const int do_update); |
| |
| void av1_build_quantizer(aom_bit_depth_t bit_depth, int y_dc_delta_q, |
| int u_dc_delta_q, int u_ac_delta_q, int v_dc_delta_q, |
| int v_ac_delta_q, QUANTS *const quants, |
| Dequants *const deq); |
| |
| void av1_init_quantizer(EncQuantDequantParams *const enc_quant_dequant_params, |
| const CommonQuantParams *quant_params, |
| aom_bit_depth_t bit_depth); |
| |
| void av1_set_quantizer(struct AV1Common *const cm, int min_qmlevel, |
| int max_qmlevel, int q, int enable_chroma_deltaq, |
| int enable_hdr_deltaq, bool is_allintra); |
| |
| int av1_quantizer_to_qindex(int quantizer); |
| |
| int av1_qindex_to_quantizer(int qindex); |
| |
| void av1_quantize_skip(intptr_t n_coeffs, tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr); |
| |
| /*!\brief Quantize transform coefficients without using qmatrix |
| * |
| * quant_ptr, dequant_ptr and round_ptr are size 2 arrays, |
| * where index 0 corresponds to dc coeff and index 1 corresponds to ac coeffs. |
| * |
| * \param[in] quant_ptr 16-bit fixed point representation of inverse |
| * quantize step size, i.e. 2^16/dequant |
| * \param[in] dequant_ptr quantize step size |
| * \param[in] round_ptr rounding |
| * \param[in] log_scale the relative log scale of the transform |
| * coefficients |
| * \param[in] scan scan[i] indicates the position of ith to-be-coded |
| * coefficient |
| * \param[in] coeff_count number of coefficients |
| * \param[out] qcoeff_ptr quantized coefficients |
| * \param[out] dqcoeff_ptr dequantized coefficients |
| * |
| * \return The last non-zero coefficient's scan index plus 1 |
| */ |
| int av1_quantize_fp_no_qmatrix(const int16_t quant_ptr[2], |
| const int16_t dequant_ptr[2], |
| const int16_t round_ptr[2], int log_scale, |
| const int16_t *scan, int coeff_count, |
| const tran_low_t *coeff_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr); |
| |
| void av1_quantize_fp_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, const QUANT_PARAM *qparam); |
| |
| void av1_quantize_b_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, const QUANT_PARAM *qparam); |
| |
| void av1_quantize_dc_facade(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const MACROBLOCK_PLANE *p, tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, const QUANT_PARAM *qparam); |
| |
| #if CONFIG_AV1_HIGHBITDEPTH |
| void av1_highbd_quantize_fp_facade(const tran_low_t *coeff_ptr, |
| intptr_t n_coeffs, const MACROBLOCK_PLANE *p, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, |
| const QUANT_PARAM *qparam); |
| |
| void av1_highbd_quantize_b_facade(const tran_low_t *coeff_ptr, |
| intptr_t n_coeffs, const MACROBLOCK_PLANE *p, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, |
| const QUANT_PARAM *qparam); |
| |
| void av1_highbd_quantize_dc_facade(const tran_low_t *coeff_ptr, |
| intptr_t n_coeffs, const MACROBLOCK_PLANE *p, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr, |
| const SCAN_ORDER *sc, |
| const QUANT_PARAM *qparam); |
| |
| #endif |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_ENCODER_AV1_QUANTIZE_H_ |