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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/av1/encoder/av1_quantize.c | 917 |
1 files changed, 917 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/av1_quantize.c b/third_party/aom/av1/encoder/av1_quantize.c new file mode 100644 index 0000000000..110d17f434 --- /dev/null +++ b/third_party/aom/av1/encoder/av1_quantize.c @@ -0,0 +1,917 @@ +/* + * 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. + */ + +#include <math.h> + +#include "config/aom_dsp_rtcd.h" + +#include "aom_dsp/quantize.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/bitops.h" +#include "aom_ports/mem.h" + +#include "av1/common/idct.h" +#include "av1/common/quant_common.h" +#include "av1/common/scan.h" +#include "av1/common/seg_common.h" + +#include "av1/encoder/av1_quantize.h" +#include "av1/encoder/encoder.h" +#include "av1/encoder/rd.h" + +void av1_quantize_skip(intptr_t n_coeffs, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, uint16_t *eob_ptr) { + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + *eob_ptr = 0; +} + +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) { + memset(qcoeff_ptr, 0, coeff_count * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, coeff_count * sizeof(*dqcoeff_ptr)); + const int rounding[2] = { ROUND_POWER_OF_TWO(round_ptr[0], log_scale), + ROUND_POWER_OF_TWO(round_ptr[1], log_scale) }; + int eob = 0; + for (int i = 0; i < coeff_count; i++) { + const int rc = scan[i]; + const int32_t thresh = (int32_t)(dequant_ptr[rc != 0]); + const int coeff = coeff_ptr[rc]; + const int coeff_sign = AOMSIGN(coeff); + int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int tmp32 = 0; + if ((abs_coeff << (1 + log_scale)) >= thresh) { + abs_coeff = clamp64(abs_coeff + rounding[rc != 0], INT16_MIN, INT16_MAX); + tmp32 = (int)((abs_coeff * quant_ptr[rc != 0]) >> (16 - log_scale)); + if (tmp32) { + qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign; + const tran_low_t abs_dqcoeff = + (tmp32 * dequant_ptr[rc != 0]) >> log_scale; + dqcoeff_ptr[rc] = (abs_dqcoeff ^ coeff_sign) - coeff_sign; + } + } + if (tmp32) eob = i + 1; + } + return eob; +} + +static void quantize_fp_helper_c( + const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *zbin_ptr, + const int16_t *round_ptr, const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan, const qm_val_t *qm_ptr, + const qm_val_t *iqm_ptr, int log_scale) { + int i, eob = -1; + const int rounding[2] = { ROUND_POWER_OF_TWO(round_ptr[0], log_scale), + ROUND_POWER_OF_TWO(round_ptr[1], log_scale) }; + // TODO(jingning) Decide the need of these arguments after the + // quantization process is completed. + (void)zbin_ptr; + (void)quant_shift_ptr; + (void)iscan; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (qm_ptr == NULL && iqm_ptr == NULL) { + *eob_ptr = av1_quantize_fp_no_qmatrix(quant_ptr, dequant_ptr, round_ptr, + log_scale, scan, (int)n_coeffs, + coeff_ptr, qcoeff_ptr, dqcoeff_ptr); + } else { + // Quantization pass: All coefficients with index >= zero_flag are + // skippable. Note: zero_flag can be zero. + for (i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const qm_val_t wt = qm_ptr ? qm_ptr[rc] : (1 << AOM_QM_BITS); + const qm_val_t iwt = iqm_ptr ? iqm_ptr[rc] : (1 << AOM_QM_BITS); + const int dequant = + (dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >> + AOM_QM_BITS; + const int coeff_sign = AOMSIGN(coeff); + int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int tmp32 = 0; + if (abs_coeff * wt >= + (dequant_ptr[rc != 0] << (AOM_QM_BITS - (1 + log_scale)))) { + abs_coeff += rounding[rc != 0]; + abs_coeff = clamp64(abs_coeff, INT16_MIN, INT16_MAX); + tmp32 = (int)((abs_coeff * wt * quant_ptr[rc != 0]) >> + (16 - log_scale + AOM_QM_BITS)); + qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign; + const tran_low_t abs_dqcoeff = (tmp32 * dequant) >> log_scale; + dqcoeff_ptr[rc] = (abs_dqcoeff ^ coeff_sign) - coeff_sign; + } + + if (tmp32) eob = i; + } + *eob_ptr = eob + 1; + } +} + +#if CONFIG_AV1_HIGHBITDEPTH +static void highbd_quantize_fp_helper_c( + const tran_low_t *coeff_ptr, intptr_t count, const int16_t *zbin_ptr, + const int16_t *round_ptr, const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan, const qm_val_t *qm_ptr, + const qm_val_t *iqm_ptr, int log_scale) { + int i; + int eob = -1; + const int shift = 16 - log_scale; + // TODO(jingning) Decide the need of these arguments after the + // quantization process is completed. + (void)zbin_ptr; + (void)quant_shift_ptr; + (void)iscan; + + if (qm_ptr || iqm_ptr) { + // Quantization pass: All coefficients with index >= zero_flag are + // skippable. Note: zero_flag can be zero. + for (i = 0; i < count; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const qm_val_t wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); + const qm_val_t iwt = iqm_ptr != NULL ? iqm_ptr[rc] : (1 << AOM_QM_BITS); + const int dequant = + (dequant_ptr[rc != 0] * iwt + (1 << (AOM_QM_BITS - 1))) >> + AOM_QM_BITS; + const int coeff_sign = AOMSIGN(coeff); + const int64_t abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int abs_qcoeff = 0; + if (abs_coeff * wt >= + (dequant_ptr[rc != 0] << (AOM_QM_BITS - (1 + log_scale)))) { + const int64_t tmp = + abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], log_scale); + abs_qcoeff = + (int)((tmp * quant_ptr[rc != 0] * wt) >> (shift + AOM_QM_BITS)); + qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign); + const tran_low_t abs_dqcoeff = (abs_qcoeff * dequant) >> log_scale; + dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); + if (abs_qcoeff) eob = i; + } else { + qcoeff_ptr[rc] = 0; + dqcoeff_ptr[rc] = 0; + } + } + } else { + const int log_scaled_round_arr[2] = { + ROUND_POWER_OF_TWO(round_ptr[0], log_scale), + ROUND_POWER_OF_TWO(round_ptr[1], log_scale), + }; + for (i = 0; i < count; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int rc01 = (rc != 0); + const int coeff_sign = AOMSIGN(coeff); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + const int log_scaled_round = log_scaled_round_arr[rc01]; + if ((abs_coeff << (1 + log_scale)) >= dequant_ptr[rc01]) { + const int quant = quant_ptr[rc01]; + const int dequant = dequant_ptr[rc01]; + const int64_t tmp = (int64_t)abs_coeff + log_scaled_round; + const int abs_qcoeff = (int)((tmp * quant) >> shift); + qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign); + const tran_low_t abs_dqcoeff = (abs_qcoeff * dequant) >> log_scale; + if (abs_qcoeff) eob = i; + dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); + } else { + qcoeff_ptr[rc] = 0; + dqcoeff_ptr[rc] = 0; + } + } + } + *eob_ptr = eob + 1; +} +#endif // CONFIG_AV1_HIGHBITDEPTH + +void av1_quantize_fp_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, const int16_t *quant_shift_ptr, + tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + quantize_fp_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, + quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, + eob_ptr, scan, iscan, NULL, NULL, 0); +} + +void av1_quantize_lp_c(const int16_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *round_ptr, const int16_t *quant_ptr, + int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + (void)iscan; + int eob = -1; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + // Quantization pass: All coefficients with index >= zero_flag are + // skippable. Note: zero_flag can be zero. + for (int i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = AOMSIGN(coeff); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX); + tmp = (tmp * quant_ptr[rc != 0]) >> 16; + + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0]; + + if (tmp) eob = i; + } + *eob_ptr = eob + 1; +} + +void av1_quantize_fp_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, + tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + quantize_fp_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, + quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, + eob_ptr, scan, iscan, NULL, NULL, 1); +} + +void av1_quantize_fp_64x64_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, + tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan) { + quantize_fp_helper_c(coeff_ptr, n_coeffs, zbin_ptr, round_ptr, quant_ptr, + quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, dequant_ptr, + eob_ptr, scan, iscan, NULL, NULL, 2); +} + +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) { + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; + if (qm_ptr != NULL && iqm_ptr != NULL) { + quantize_fp_helper_c(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, + p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + switch (qparam->log_scale) { + case 0: + av1_quantize_fp(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, + p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + case 1: + av1_quantize_fp_32x32(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, + p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + case 2: + av1_quantize_fp_64x64(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, + p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + default: assert(0); + } + } +} + +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) { + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; +#if !CONFIG_REALTIME_ONLY + if (qparam->use_quant_b_adapt) { + // TODO(sarahparker) These quantize_b optimizations need SIMD + // implementations + if (qm_ptr != NULL && iqm_ptr != NULL) { + aom_quantize_b_adaptive_helper_c( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr, + sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + switch (qparam->log_scale) { + case 0: + aom_quantize_b_adaptive(coeff_ptr, n_coeffs, p->zbin_QTX, + p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, + p->dequant_QTX, eob_ptr, sc->scan, sc->iscan); + break; + case 1: + aom_quantize_b_32x32_adaptive( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + case 2: + aom_quantize_b_64x64_adaptive( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + default: assert(0); + } + } + return; + } +#endif // !CONFIG_REALTIME_ONLY + + if (qm_ptr != NULL && iqm_ptr != NULL) { + aom_quantize_b_helper_c(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, + p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + switch (qparam->log_scale) { + case 0: + aom_quantize_b(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, + p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + case 1: + aom_quantize_b_32x32(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, + p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + case 2: + aom_quantize_b_64x64(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, + p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + default: assert(0); + } + } +} + +static void quantize_dc(const tran_low_t *coeff_ptr, int n_coeffs, + int skip_block, const int16_t *round_ptr, + const int16_t quant, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t dequant_ptr, + uint16_t *eob_ptr, const qm_val_t *qm_ptr, + const qm_val_t *iqm_ptr, const int log_scale) { + const int rc = 0; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = AOMSIGN(coeff); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int64_t tmp; + int eob = -1; + int32_t tmp32; + int dequant; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + const int wt = qm_ptr != NULL ? qm_ptr[rc] : (1 << AOM_QM_BITS); + const int iwt = iqm_ptr != NULL ? iqm_ptr[rc] : (1 << AOM_QM_BITS); + tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], log_scale), + INT16_MIN, INT16_MAX); + tmp32 = (int32_t)((tmp * wt * quant) >> (16 - log_scale + AOM_QM_BITS)); + qcoeff_ptr[rc] = (tmp32 ^ coeff_sign) - coeff_sign; + dequant = (dequant_ptr * iwt + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; + const tran_low_t abs_dqcoeff = (tmp32 * dequant) >> log_scale; + dqcoeff_ptr[rc] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); + if (tmp32) eob = 0; + } + *eob_ptr = eob + 1; +} + +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) { + // obsolete skip_block + const int skip_block = 0; + (void)sc; + assert(qparam->log_scale >= 0 && qparam->log_scale < (3)); + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; + quantize_dc(coeff_ptr, (int)n_coeffs, skip_block, p->round_QTX, + p->quant_fp_QTX[0], qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX[0], + eob_ptr, qm_ptr, iqm_ptr, qparam->log_scale); +} + +#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) { + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; + if (qm_ptr != NULL && iqm_ptr != NULL) { + highbd_quantize_fp_helper_c( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, p->quant_fp_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr, + sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + av1_highbd_quantize_fp(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_fp_QTX, + p->quant_fp_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan, qparam->log_scale); + } +} + +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) { + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; +#if !CONFIG_REALTIME_ONLY + if (qparam->use_quant_b_adapt) { + if (qm_ptr != NULL && iqm_ptr != NULL) { + aom_highbd_quantize_b_adaptive_helper_c( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr, + sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + switch (qparam->log_scale) { + case 0: + aom_highbd_quantize_b_adaptive( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + case 1: + aom_highbd_quantize_b_32x32_adaptive( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + case 2: + aom_highbd_quantize_b_64x64_adaptive( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + default: assert(0); + } + } + return; + } +#endif // !CONFIG_REALTIME_ONLY + + if (qm_ptr != NULL && iqm_ptr != NULL) { + aom_highbd_quantize_b_helper_c( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, eob_ptr, + sc->scan, sc->iscan, qm_ptr, iqm_ptr, qparam->log_scale); + } else { + switch (qparam->log_scale) { + case 0: + aom_highbd_quantize_b(coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, + p->quant_QTX, p->quant_shift_QTX, qcoeff_ptr, + dqcoeff_ptr, p->dequant_QTX, eob_ptr, sc->scan, + sc->iscan); + break; + case 1: + aom_highbd_quantize_b_32x32( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + case 2: + aom_highbd_quantize_b_64x64( + coeff_ptr, n_coeffs, p->zbin_QTX, p->round_QTX, p->quant_QTX, + p->quant_shift_QTX, qcoeff_ptr, dqcoeff_ptr, p->dequant_QTX, + eob_ptr, sc->scan, sc->iscan); + break; + default: assert(0); + } + } +} + +static INLINE void highbd_quantize_dc( + const tran_low_t *coeff_ptr, int n_coeffs, int skip_block, + const int16_t *round_ptr, const int16_t quant, tran_low_t *qcoeff_ptr, + tran_low_t *dqcoeff_ptr, const int16_t dequant_ptr, uint16_t *eob_ptr, + const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr, const int log_scale) { + int eob = -1; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + const qm_val_t wt = qm_ptr != NULL ? qm_ptr[0] : (1 << AOM_QM_BITS); + const qm_val_t iwt = iqm_ptr != NULL ? iqm_ptr[0] : (1 << AOM_QM_BITS); + const int coeff = coeff_ptr[0]; + const int coeff_sign = AOMSIGN(coeff); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + const int64_t tmp = abs_coeff + ROUND_POWER_OF_TWO(round_ptr[0], log_scale); + const int64_t tmpw = tmp * wt; + const int abs_qcoeff = + (int)((tmpw * quant) >> (16 - log_scale + AOM_QM_BITS)); + qcoeff_ptr[0] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign); + const int dequant = + (dequant_ptr * iwt + (1 << (AOM_QM_BITS - 1))) >> AOM_QM_BITS; + + const tran_low_t abs_dqcoeff = (abs_qcoeff * dequant) >> log_scale; + dqcoeff_ptr[0] = (tran_low_t)((abs_dqcoeff ^ coeff_sign) - coeff_sign); + if (abs_qcoeff) eob = 0; + } + *eob_ptr = eob + 1; +} + +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) { + // obsolete skip_block + const int skip_block = 0; + const qm_val_t *qm_ptr = qparam->qmatrix; + const qm_val_t *iqm_ptr = qparam->iqmatrix; + (void)sc; + + highbd_quantize_dc(coeff_ptr, (int)n_coeffs, skip_block, p->round_QTX, + p->quant_fp_QTX[0], qcoeff_ptr, dqcoeff_ptr, + p->dequant_QTX[0], eob_ptr, qm_ptr, iqm_ptr, + qparam->log_scale); +} + +void av1_highbd_quantize_fp_c(const tran_low_t *coeff_ptr, intptr_t count, + const int16_t *zbin_ptr, const int16_t *round_ptr, + const int16_t *quant_ptr, + const int16_t *quant_shift_ptr, + tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, + const int16_t *dequant_ptr, uint16_t *eob_ptr, + const int16_t *scan, const int16_t *iscan, + int log_scale) { + highbd_quantize_fp_helper_c(coeff_ptr, count, zbin_ptr, round_ptr, quant_ptr, + quant_shift_ptr, qcoeff_ptr, dqcoeff_ptr, + dequant_ptr, eob_ptr, scan, iscan, NULL, NULL, + log_scale); +} +#endif // CONFIG_AV1_HIGHBITDEPTH + +static void invert_quant(int16_t *quant, int16_t *shift, int d) { + uint32_t t; + int l, m; + t = d; + l = get_msb(t); + m = 1 + (1 << (16 + l)) / d; + *quant = (int16_t)(m - (1 << 16)); + *shift = 1 << (16 - l); +} + +static int get_qzbin_factor(int q, aom_bit_depth_t bit_depth) { + const int quant = av1_dc_quant_QTX(q, 0, bit_depth); + switch (bit_depth) { + case AOM_BITS_8: return q == 0 ? 64 : (quant < 148 ? 84 : 80); + case AOM_BITS_10: return q == 0 ? 64 : (quant < 592 ? 84 : 80); + case AOM_BITS_12: return q == 0 ? 64 : (quant < 2368 ? 84 : 80); + default: + assert(0 && "bit_depth should be AOM_BITS_8, AOM_BITS_10 or AOM_BITS_12"); + return -1; + } +} + +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) { + int i, q, quant_QTX; + + for (q = 0; q < QINDEX_RANGE; q++) { + const int qzbin_factor = get_qzbin_factor(q, bit_depth); + const int qrounding_factor = q == 0 ? 64 : 48; + + for (i = 0; i < 2; ++i) { + const int qrounding_factor_fp = 64; + // y quantizer with TX scale + quant_QTX = i == 0 ? av1_dc_quant_QTX(q, y_dc_delta_q, bit_depth) + : av1_ac_quant_QTX(q, 0, bit_depth); + invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i], + quant_QTX); + quants->y_quant_fp[q][i] = (1 << 16) / quant_QTX; + quants->y_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7; + quants->y_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7); + quants->y_round[q][i] = (qrounding_factor * quant_QTX) >> 7; + deq->y_dequant_QTX[q][i] = quant_QTX; + + // u quantizer with TX scale + quant_QTX = i == 0 ? av1_dc_quant_QTX(q, u_dc_delta_q, bit_depth) + : av1_ac_quant_QTX(q, u_ac_delta_q, bit_depth); + invert_quant(&quants->u_quant[q][i], &quants->u_quant_shift[q][i], + quant_QTX); + quants->u_quant_fp[q][i] = (1 << 16) / quant_QTX; + quants->u_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7; + quants->u_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7); + quants->u_round[q][i] = (qrounding_factor * quant_QTX) >> 7; + deq->u_dequant_QTX[q][i] = quant_QTX; + + // v quantizer with TX scale + quant_QTX = i == 0 ? av1_dc_quant_QTX(q, v_dc_delta_q, bit_depth) + : av1_ac_quant_QTX(q, v_ac_delta_q, bit_depth); + invert_quant(&quants->v_quant[q][i], &quants->v_quant_shift[q][i], + quant_QTX); + quants->v_quant_fp[q][i] = (1 << 16) / quant_QTX; + quants->v_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7; + quants->v_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7); + quants->v_round[q][i] = (qrounding_factor * quant_QTX) >> 7; + deq->v_dequant_QTX[q][i] = quant_QTX; + } + + for (i = 2; i < 8; i++) { // 8: SIMD width + quants->y_quant[q][i] = quants->y_quant[q][1]; + quants->y_quant_fp[q][i] = quants->y_quant_fp[q][1]; + quants->y_round_fp[q][i] = quants->y_round_fp[q][1]; + quants->y_quant_shift[q][i] = quants->y_quant_shift[q][1]; + quants->y_zbin[q][i] = quants->y_zbin[q][1]; + quants->y_round[q][i] = quants->y_round[q][1]; + deq->y_dequant_QTX[q][i] = deq->y_dequant_QTX[q][1]; + + quants->u_quant[q][i] = quants->u_quant[q][1]; + quants->u_quant_fp[q][i] = quants->u_quant_fp[q][1]; + quants->u_round_fp[q][i] = quants->u_round_fp[q][1]; + quants->u_quant_shift[q][i] = quants->u_quant_shift[q][1]; + quants->u_zbin[q][i] = quants->u_zbin[q][1]; + quants->u_round[q][i] = quants->u_round[q][1]; + deq->u_dequant_QTX[q][i] = deq->u_dequant_QTX[q][1]; + + quants->v_quant[q][i] = quants->v_quant[q][1]; + quants->v_quant_fp[q][i] = quants->v_quant_fp[q][1]; + quants->v_round_fp[q][i] = quants->v_round_fp[q][1]; + quants->v_quant_shift[q][i] = quants->v_quant_shift[q][1]; + quants->v_zbin[q][i] = quants->v_zbin[q][1]; + quants->v_round[q][i] = quants->v_round[q][1]; + deq->v_dequant_QTX[q][i] = deq->v_dequant_QTX[q][1]; + } + } +} + +static INLINE bool deltaq_params_have_changed( + const DeltaQuantParams *prev_deltaq_params, + const CommonQuantParams *quant_params) { + return (prev_deltaq_params->y_dc_delta_q != quant_params->y_dc_delta_q || + prev_deltaq_params->u_dc_delta_q != quant_params->u_dc_delta_q || + prev_deltaq_params->v_dc_delta_q != quant_params->v_dc_delta_q || + prev_deltaq_params->u_ac_delta_q != quant_params->u_ac_delta_q || + prev_deltaq_params->v_ac_delta_q != quant_params->v_ac_delta_q); +} + +void av1_init_quantizer(EncQuantDequantParams *const enc_quant_dequant_params, + const CommonQuantParams *quant_params, + aom_bit_depth_t bit_depth) { + DeltaQuantParams *const prev_deltaq_params = + &enc_quant_dequant_params->prev_deltaq_params; + + // Re-initialize the quantizer only if any of the dc/ac deltaq parameters + // change. + if (!deltaq_params_have_changed(prev_deltaq_params, quant_params)) return; + QUANTS *const quants = &enc_quant_dequant_params->quants; + Dequants *const dequants = &enc_quant_dequant_params->dequants; + av1_build_quantizer(bit_depth, quant_params->y_dc_delta_q, + quant_params->u_dc_delta_q, quant_params->u_ac_delta_q, + quant_params->v_dc_delta_q, quant_params->v_ac_delta_q, + quants, dequants); + + // Record the state of deltaq parameters. + prev_deltaq_params->y_dc_delta_q = quant_params->y_dc_delta_q; + prev_deltaq_params->u_dc_delta_q = quant_params->u_dc_delta_q; + prev_deltaq_params->v_dc_delta_q = quant_params->v_dc_delta_q; + prev_deltaq_params->u_ac_delta_q = quant_params->u_ac_delta_q; + prev_deltaq_params->v_ac_delta_q = quant_params->v_ac_delta_q; +} + +void av1_set_q_index(const EncQuantDequantParams *enc_quant_dequant_params, + int qindex, MACROBLOCK *x) { + const QUANTS *const quants = &enc_quant_dequant_params->quants; + const Dequants *const dequants = &enc_quant_dequant_params->dequants; + x->qindex = qindex; + x->seg_skip_block = + 0; // TODO(angiebird): Find a proper place to init this variable. + + // Y + x->plane[0].quant_QTX = quants->y_quant[qindex]; + x->plane[0].quant_fp_QTX = quants->y_quant_fp[qindex]; + x->plane[0].round_fp_QTX = quants->y_round_fp[qindex]; + x->plane[0].quant_shift_QTX = quants->y_quant_shift[qindex]; + x->plane[0].zbin_QTX = quants->y_zbin[qindex]; + x->plane[0].round_QTX = quants->y_round[qindex]; + x->plane[0].dequant_QTX = dequants->y_dequant_QTX[qindex]; + + // U + x->plane[1].quant_QTX = quants->u_quant[qindex]; + x->plane[1].quant_fp_QTX = quants->u_quant_fp[qindex]; + x->plane[1].round_fp_QTX = quants->u_round_fp[qindex]; + x->plane[1].quant_shift_QTX = quants->u_quant_shift[qindex]; + x->plane[1].zbin_QTX = quants->u_zbin[qindex]; + x->plane[1].round_QTX = quants->u_round[qindex]; + x->plane[1].dequant_QTX = dequants->u_dequant_QTX[qindex]; + + // V + x->plane[2].quant_QTX = quants->v_quant[qindex]; + x->plane[2].quant_fp_QTX = quants->v_quant_fp[qindex]; + x->plane[2].round_fp_QTX = quants->v_round_fp[qindex]; + x->plane[2].quant_shift_QTX = quants->v_quant_shift[qindex]; + x->plane[2].zbin_QTX = quants->v_zbin[qindex]; + x->plane[2].round_QTX = quants->v_round[qindex]; + x->plane[2].dequant_QTX = dequants->v_dequant_QTX[qindex]; +} + +void av1_set_qmatrix(const CommonQuantParams *quant_params, int segment_id, + MACROBLOCKD *xd) { + const int use_qmatrix = av1_use_qmatrix(quant_params, xd, segment_id); + const int qmlevel_y = + use_qmatrix ? quant_params->qmatrix_level_y : NUM_QM_LEVELS - 1; + const int qmlevel_u = + use_qmatrix ? quant_params->qmatrix_level_u : NUM_QM_LEVELS - 1; + const int qmlevel_v = + use_qmatrix ? quant_params->qmatrix_level_v : NUM_QM_LEVELS - 1; + const int qmlevel_ls[MAX_MB_PLANE] = { qmlevel_y, qmlevel_u, qmlevel_v }; + for (int i = 0; i < MAX_MB_PLANE; ++i) { + const int qmlevel = qmlevel_ls[i]; + memcpy(&xd->plane[i].seg_qmatrix[segment_id], + quant_params->gqmatrix[qmlevel][i], + sizeof(quant_params->gqmatrix[qmlevel][i])); + memcpy(&xd->plane[i].seg_iqmatrix[segment_id], + quant_params->giqmatrix[qmlevel][i], + sizeof(quant_params->giqmatrix[qmlevel][i])); + } +} + +void av1_init_plane_quantizers(const AV1_COMP *cpi, MACROBLOCK *x, + int segment_id, const int do_update) { + const AV1_COMMON *const cm = &cpi->common; + const CommonQuantParams *const quant_params = &cm->quant_params; + const GF_GROUP *const gf_group = &cpi->ppi->gf_group; + const int boost_index = AOMMIN(15, (cpi->ppi->p_rc.gfu_boost / 100)); + const int layer_depth = AOMMIN(gf_group->layer_depth[cpi->gf_frame_index], 6); + const FRAME_TYPE frame_type = cm->current_frame.frame_type; + int qindex_rd; + + const int current_qindex = AOMMAX( + 0, + AOMMIN(QINDEX_RANGE - 1, cm->delta_q_info.delta_q_present_flag + ? quant_params->base_qindex + x->delta_qindex + : quant_params->base_qindex)); + const int qindex = av1_get_qindex(&cm->seg, segment_id, current_qindex); + + if (cpi->oxcf.sb_qp_sweep) { + const int current_rd_qindex = + AOMMAX(0, AOMMIN(QINDEX_RANGE - 1, cm->delta_q_info.delta_q_present_flag + ? quant_params->base_qindex + + x->rdmult_delta_qindex + : quant_params->base_qindex)); + qindex_rd = av1_get_qindex(&cm->seg, segment_id, current_rd_qindex); + } else { + qindex_rd = qindex; + } + + const int qindex_rdmult = qindex_rd + quant_params->y_dc_delta_q; + const int rdmult = av1_compute_rd_mult( + qindex_rdmult, cm->seq_params->bit_depth, + cpi->ppi->gf_group.update_type[cpi->gf_frame_index], layer_depth, + boost_index, frame_type, cpi->oxcf.q_cfg.use_fixed_qp_offsets, + is_stat_consumption_stage(cpi)); + + const int qindex_change = x->qindex != qindex; + if (qindex_change || do_update) { + av1_set_q_index(&cpi->enc_quant_dequant_params, qindex, x); + } + + MACROBLOCKD *const xd = &x->e_mbd; + if ((segment_id != x->prev_segment_id) || + av1_use_qmatrix(quant_params, xd, segment_id)) { + av1_set_qmatrix(quant_params, segment_id, xd); + } + + x->seg_skip_block = segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP); + + av1_set_error_per_bit(&x->errorperbit, rdmult); + av1_set_sad_per_bit(cpi, &x->sadperbit, qindex_rd); + + x->prev_segment_id = segment_id; +} + +void av1_frame_init_quantizer(AV1_COMP *cpi) { + MACROBLOCK *const x = &cpi->td.mb; + MACROBLOCKD *const xd = &x->e_mbd; + x->prev_segment_id = -1; + av1_init_plane_quantizers(cpi, x, xd->mi[0]->segment_id, 1); +} + +static int adjust_hdr_cb_deltaq(int base_qindex) { + double baseQp = base_qindex / QP_SCALE_FACTOR; + const double chromaQp = CHROMA_QP_SCALE * baseQp + CHROMA_QP_OFFSET; + const double dcbQP = CHROMA_CB_QP_SCALE * chromaQp * QP_SCALE_FACTOR; + int dqpCb = (int)(dcbQP + (dcbQP < 0 ? -0.5 : 0.5)); + dqpCb = AOMMIN(0, dqpCb); + dqpCb = (int)CLIP(dqpCb, -12 * QP_SCALE_FACTOR, 12 * QP_SCALE_FACTOR); + return dqpCb; +} + +static int adjust_hdr_cr_deltaq(int base_qindex) { + double baseQp = base_qindex / QP_SCALE_FACTOR; + const double chromaQp = CHROMA_QP_SCALE * baseQp + CHROMA_QP_OFFSET; + const double dcrQP = CHROMA_CR_QP_SCALE * chromaQp * QP_SCALE_FACTOR; + int dqpCr = (int)(dcrQP + (dcrQP < 0 ? -0.5 : 0.5)); + dqpCr = AOMMIN(0, dqpCr); + dqpCr = (int)CLIP(dqpCr, -12 * QP_SCALE_FACTOR, 12 * QP_SCALE_FACTOR); + return dqpCr; +} + +void av1_set_quantizer(AV1_COMMON *const cm, int min_qmlevel, int max_qmlevel, + int q, int enable_chroma_deltaq, int enable_hdr_deltaq) { + // quantizer has to be reinitialized with av1_init_quantizer() if any + // delta_q changes. + CommonQuantParams *quant_params = &cm->quant_params; + quant_params->base_qindex = AOMMAX(cm->delta_q_info.delta_q_present_flag, q); + quant_params->y_dc_delta_q = 0; + + if (enable_chroma_deltaq) { + // TODO(aomedia:2717): need to design better delta + quant_params->u_dc_delta_q = 2; + quant_params->u_ac_delta_q = 2; + quant_params->v_dc_delta_q = 2; + quant_params->v_ac_delta_q = 2; + } else { + quant_params->u_dc_delta_q = 0; + quant_params->u_ac_delta_q = 0; + quant_params->v_dc_delta_q = 0; + quant_params->v_ac_delta_q = 0; + } + + // following section 8.3.2 in T-REC-H.Sup15 document + // to apply to AV1 qindex in the range of [0, 255] + if (enable_hdr_deltaq) { + int dqpCb = adjust_hdr_cb_deltaq(quant_params->base_qindex); + int dqpCr = adjust_hdr_cr_deltaq(quant_params->base_qindex); + quant_params->u_dc_delta_q = quant_params->u_ac_delta_q = dqpCb; + quant_params->v_dc_delta_q = quant_params->v_ac_delta_q = dqpCr; + if (dqpCb != dqpCr) { + cm->seq_params->separate_uv_delta_q = 1; + } + } + + quant_params->qmatrix_level_y = + aom_get_qmlevel(quant_params->base_qindex, min_qmlevel, max_qmlevel); + quant_params->qmatrix_level_u = + aom_get_qmlevel(quant_params->base_qindex + quant_params->u_ac_delta_q, + min_qmlevel, max_qmlevel); + + if (!cm->seq_params->separate_uv_delta_q) + quant_params->qmatrix_level_v = quant_params->qmatrix_level_u; + else + quant_params->qmatrix_level_v = + aom_get_qmlevel(quant_params->base_qindex + quant_params->v_ac_delta_q, + min_qmlevel, max_qmlevel); +} + +// Table that converts 0-63 Q-range values passed in outside to the Qindex +// range used internally. +static const int quantizer_to_qindex[] = { + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, + 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, + 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, + 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, + 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 249, 255, +}; + +int av1_quantizer_to_qindex(int quantizer) { + return quantizer_to_qindex[quantizer]; +} + +int av1_qindex_to_quantizer(int qindex) { + int quantizer; + + for (quantizer = 0; quantizer < 64; ++quantizer) + if (quantizer_to_qindex[quantizer] >= qindex) return quantizer; + + return 63; +} |