diff options
Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/av1_quantize.h | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/av1_quantize.h b/third_party/aom/av1/encoder/av1_quantize.h new file mode 100644 index 0000000000..040973376d --- /dev/null +++ b/third_party/aom/av1/encoder/av1_quantize.h @@ -0,0 +1,224 @@ +/* + * 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 "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); + +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); + +/*!\brief Update quantize parameters in MACROBLOCK + * + * \param[in] enc_quant_dequant_params This parameter cached the quantize and + * dequantize parameters for all q + * indices. + * \param[in] qindex Quantize index used for the current + * superblock. + * \param[out] x A superblock data structure for + * encoder. + */ +void av1_set_q_index(const EncQuantDequantParams *enc_quant_dequant_params, + int qindex, MACROBLOCK *x); + +/*!\brief Update quantize matrix in MACROBLOCKD based on segment id + * + * \param[in] quant_params Quantize parameters used by encoder and decoder + * \param[in] segment_id Segment id. + * \param[out] xd A superblock data structure used by encoder and + * decoder. + */ +void av1_set_qmatrix(const CommonQuantParams *quant_params, int segment_id, + MACROBLOCKD *xd); + +#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_ |