From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- media/libvpx/vp9/encoder/vp9_quantize.c | 728 ++++++++++++++++++++++++++++++++ 1 file changed, 728 insertions(+) create mode 100644 media/libvpx/vp9/encoder/vp9_quantize.c (limited to 'media/libvpx/vp9/encoder/vp9_quantize.c') diff --git a/media/libvpx/vp9/encoder/vp9_quantize.c b/media/libvpx/vp9/encoder/vp9_quantize.c new file mode 100644 index 000000000..db5460b6c --- /dev/null +++ b/media/libvpx/vp9/encoder/vp9_quantize.c @@ -0,0 +1,728 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include + +#include "vpx_mem/vpx_mem.h" +#include "vpx_ports/mem.h" + +#include "vp9/common/vp9_quant_common.h" +#include "vp9/common/vp9_seg_common.h" + +#include "vp9/encoder/vp9_encoder.h" +#include "vp9/encoder/vp9_quantize.h" +#include "vp9/encoder/vp9_rd.h" + +void vp9_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 int rc = 0; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int tmp, eob = -1; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX); + tmp = (tmp * quant) >> 16; + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr; + if (tmp) + eob = 0; + } + *eob_ptr = eob + 1; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_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) { + 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 int rc = 0; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + const int64_t tmp = + (clamp(abs_coeff + round_ptr[rc != 0], INT32_MIN, INT32_MAX) * + quant) >> 16; + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr; + if (tmp) + eob = 0; + } + *eob_ptr = eob + 1; +} +#endif + +void vp9_quantize_dc_32x32(const tran_low_t *coeff_ptr, 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 int n_coeffs = 1024; + const int rc = 0; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int tmp, eob = -1; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + + tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1), + INT16_MIN, INT16_MAX); + tmp = (tmp * quant) >> 15; + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2; + if (tmp) + eob = 0; + } + *eob_ptr = eob + 1; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_highbd_quantize_dc_32x32(const tran_low_t *coeff_ptr, + 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 int n_coeffs = 1024; + 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 int rc = 0; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + const int64_t tmp = + (clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1), + INT32_MIN, INT32_MAX) * quant) >> 15; + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2; + if (tmp) + eob = 0; + } + *eob_ptr = eob + 1; +} +#endif + +void vp9_quantize_fp_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + int skip_block, + 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 i, eob = -1; + // 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 (!skip_block) { + // 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 int coeff_sign = (coeff >> 31); + 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; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_highbd_quantize_fp_c(const tran_low_t *coeff_ptr, + intptr_t count, + int skip_block, + 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 i; + int eob = -1; + // 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, count * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, count * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + // 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 int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + const int64_t tmp = + (clamp(abs_coeff + round_ptr[rc != 0], INT32_MIN, INT32_MAX) * + quant_ptr[rc != 0]) >> 16; + + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0]; + + if (tmp) + eob = i; + } + } + *eob_ptr = eob + 1; +} +#endif + +// TODO(jingning) Refactor this file and combine functions with similar +// operations. +void vp9_quantize_fp_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + int skip_block, + 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 i, eob = -1; + (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 (!skip_block) { + for (i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + int tmp = 0; + int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + if (abs_coeff >= (dequant_ptr[rc != 0] >> 2)) { + abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1); + abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX); + tmp = (abs_coeff * quant_ptr[rc != 0]) >> 15; + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + } + + if (tmp) + eob = i; + } + } + *eob_ptr = eob + 1; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_highbd_quantize_fp_32x32_c(const tran_low_t *coeff_ptr, + intptr_t n_coeffs, int skip_block, + 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 i, eob = -1; + (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 (!skip_block) { + for (i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + int64_t tmp = 0; + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + if (abs_coeff >= (dequant_ptr[rc != 0] >> 2)) { + tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1), + INT32_MIN, INT32_MAX); + tmp = (tmp * quant_ptr[rc != 0]) >> 15; + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + } + + if (tmp) + eob = i; + } + } + *eob_ptr = eob + 1; +} +#endif + +void vp9_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + int skip_block, + 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 i, non_zero_count = (int)n_coeffs, eob = -1; + const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]}; + const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1}; + (void)iscan; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + // Pre-scan pass + for (i = (int)n_coeffs - 1; i >= 0; i--) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + + if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0]) + non_zero_count--; + else + break; + } + + // Quantization pass: All coefficients with index >= zero_flag are + // skippable. Note: zero_flag can be zero. + for (i = 0; i < non_zero_count; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + if (abs_coeff >= zbins[rc != 0]) { + int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX); + tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) * + quant_shift_ptr[rc != 0]) >> 16; // quantization + 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; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_highbd_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + int skip_block, 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 i, non_zero_count = (int)n_coeffs, eob = -1; + const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]}; + const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1}; + (void)iscan; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + // Pre-scan pass + for (i = (int)n_coeffs - 1; i >= 0; i--) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + + if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0]) + non_zero_count--; + else + break; + } + + // Quantization pass: All coefficients with index >= zero_flag are + // skippable. Note: zero_flag can be zero. + for (i = 0; i < non_zero_count; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + + if (abs_coeff >= zbins[rc != 0]) { + int64_t tmp = clamp(abs_coeff + round_ptr[rc != 0], + INT32_MIN, INT32_MAX); + tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) * + quant_shift_ptr[rc != 0]) >> 16; // quantization + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0]; + + if (tmp) + eob = i; + } + } + } + *eob_ptr = eob + 1; +} +#endif + +void vp9_quantize_b_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs, + int skip_block, + 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 int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1), + ROUND_POWER_OF_TWO(zbin_ptr[1], 1)}; + const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1}; + + int idx = 0; + int idx_arr[1024]; + int i, eob = -1; + (void)iscan; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + // Pre-scan pass + for (i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + + // If the coefficient is out of the base ZBIN range, keep it for + // quantization. + if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0]) + idx_arr[idx++] = i; + } + + // Quantization pass: only process the coefficients selected in + // pre-scan pass. Note: idx can be zero. + for (i = 0; i < idx; i++) { + const int rc = scan[idx_arr[i]]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + int tmp; + int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1); + abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX); + tmp = ((((abs_coeff * quant_ptr[rc != 0]) >> 16) + abs_coeff) * + quant_shift_ptr[rc != 0]) >> 15; + + qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign; + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + + if (tmp) + eob = idx_arr[i]; + } + } + *eob_ptr = eob + 1; +} + +#if CONFIG_VP9_HIGHBITDEPTH +void vp9_highbd_quantize_b_32x32_c(const tran_low_t *coeff_ptr, + intptr_t n_coeffs, int skip_block, + 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 int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1), + ROUND_POWER_OF_TWO(zbin_ptr[1], 1)}; + const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1}; + + int idx = 0; + int idx_arr[1024]; + int i, eob = -1; + (void)iscan; + + memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr)); + memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr)); + + if (!skip_block) { + // Pre-scan pass + for (i = 0; i < n_coeffs; i++) { + const int rc = scan[i]; + const int coeff = coeff_ptr[rc]; + + // If the coefficient is out of the base ZBIN range, keep it for + // quantization. + if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0]) + idx_arr[idx++] = i; + } + + // Quantization pass: only process the coefficients selected in + // pre-scan pass. Note: idx can be zero. + for (i = 0; i < idx; i++) { + const int rc = scan[idx_arr[i]]; + const int coeff = coeff_ptr[rc]; + const int coeff_sign = (coeff >> 31); + const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign; + int64_t tmp = clamp(abs_coeff + + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1), + INT32_MIN, INT32_MAX); + tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) * + quant_shift_ptr[rc != 0]) >> 15; + + qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign); + dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2; + + if (tmp) + eob = idx_arr[i]; + } + } + *eob_ptr = eob + 1; +} +#endif + +void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block, + const int16_t *scan, const int16_t *iscan) { + MACROBLOCKD *const xd = &x->e_mbd; + struct macroblock_plane *p = &x->plane[plane]; + struct macroblockd_plane *pd = &xd->plane[plane]; + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + vp9_highbd_quantize_b(BLOCK_OFFSET(p->coeff, block), + 16, x->skip_block, + p->zbin, p->round, p->quant, p->quant_shift, + BLOCK_OFFSET(p->qcoeff, block), + BLOCK_OFFSET(pd->dqcoeff, block), + pd->dequant, &p->eobs[block], + scan, iscan); + return; + } +#endif + vp9_quantize_b(BLOCK_OFFSET(p->coeff, block), + 16, x->skip_block, + p->zbin, p->round, p->quant, p->quant_shift, + BLOCK_OFFSET(p->qcoeff, block), + BLOCK_OFFSET(pd->dqcoeff, block), + pd->dequant, &p->eobs[block], scan, iscan); +} + +static void invert_quant(int16_t *quant, int16_t *shift, int d) { + unsigned t; + int l; + t = d; + for (l = 0; t > 1; l++) + t >>= 1; + t = 1 + (1 << (16 + l)) / d; + *quant = (int16_t)(t - (1 << 16)); + *shift = 1 << (16 - l); +} + +static int get_qzbin_factor(int q, vpx_bit_depth_t bit_depth) { + const int quant = vp9_dc_quant(q, 0, bit_depth); +#if CONFIG_VP9_HIGHBITDEPTH + switch (bit_depth) { + case VPX_BITS_8: + return q == 0 ? 64 : (quant < 148 ? 84 : 80); + case VPX_BITS_10: + return q == 0 ? 64 : (quant < 592 ? 84 : 80); + case VPX_BITS_12: + return q == 0 ? 64 : (quant < 2368 ? 84 : 80); + default: + assert(0 && "bit_depth should be VPX_BITS_8, VPX_BITS_10 or VPX_BITS_12"); + return -1; + } +#else + (void) bit_depth; + return q == 0 ? 64 : (quant < 148 ? 84 : 80); +#endif +} + +void vp9_init_quantizer(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + QUANTS *const quants = &cpi->quants; + int i, q, quant; + + for (q = 0; q < QINDEX_RANGE; q++) { + const int qzbin_factor = get_qzbin_factor(q, cm->bit_depth); + const int qrounding_factor = q == 0 ? 64 : 48; + + for (i = 0; i < 2; ++i) { + int qrounding_factor_fp = i == 0 ? 48 : 42; + if (q == 0) + qrounding_factor_fp = 64; + + // y + quant = i == 0 ? vp9_dc_quant(q, cm->y_dc_delta_q, cm->bit_depth) + : vp9_ac_quant(q, 0, cm->bit_depth); + invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i], quant); + quants->y_quant_fp[q][i] = (1 << 16) / quant; + quants->y_round_fp[q][i] = (qrounding_factor_fp * quant) >> 7; + quants->y_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7); + quants->y_round[q][i] = (qrounding_factor * quant) >> 7; + cpi->y_dequant[q][i] = quant; + + // uv + quant = i == 0 ? vp9_dc_quant(q, cm->uv_dc_delta_q, cm->bit_depth) + : vp9_ac_quant(q, cm->uv_ac_delta_q, cm->bit_depth); + invert_quant(&quants->uv_quant[q][i], + &quants->uv_quant_shift[q][i], quant); + quants->uv_quant_fp[q][i] = (1 << 16) / quant; + quants->uv_round_fp[q][i] = (qrounding_factor_fp * quant) >> 7; + quants->uv_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7); + quants->uv_round[q][i] = (qrounding_factor * quant) >> 7; + cpi->uv_dequant[q][i] = quant; + } + + for (i = 2; i < 8; i++) { + 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]; + cpi->y_dequant[q][i] = cpi->y_dequant[q][1]; + + quants->uv_quant[q][i] = quants->uv_quant[q][1]; + quants->uv_quant_fp[q][i] = quants->uv_quant_fp[q][1]; + quants->uv_round_fp[q][i] = quants->uv_round_fp[q][1]; + quants->uv_quant_shift[q][i] = quants->uv_quant_shift[q][1]; + quants->uv_zbin[q][i] = quants->uv_zbin[q][1]; + quants->uv_round[q][i] = quants->uv_round[q][1]; + cpi->uv_dequant[q][i] = cpi->uv_dequant[q][1]; + } + } +} + +void vp9_init_plane_quantizers(VP9_COMP *cpi, MACROBLOCK *x) { + const VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + QUANTS *const quants = &cpi->quants; + const int segment_id = xd->mi[0]->mbmi.segment_id; + const int qindex = vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex); + const int rdmult = vp9_compute_rd_mult(cpi, qindex + cm->y_dc_delta_q); + int i; + + // Y + x->plane[0].quant = quants->y_quant[qindex]; + x->plane[0].quant_fp = quants->y_quant_fp[qindex]; + x->plane[0].round_fp = quants->y_round_fp[qindex]; + x->plane[0].quant_shift = quants->y_quant_shift[qindex]; + x->plane[0].zbin = quants->y_zbin[qindex]; + x->plane[0].round = quants->y_round[qindex]; + xd->plane[0].dequant = cpi->y_dequant[qindex]; + + x->plane[0].quant_thred[0] = x->plane[0].zbin[0] * x->plane[0].zbin[0]; + x->plane[0].quant_thred[1] = x->plane[0].zbin[1] * x->plane[0].zbin[1]; + + // UV + for (i = 1; i < 3; i++) { + x->plane[i].quant = quants->uv_quant[qindex]; + x->plane[i].quant_fp = quants->uv_quant_fp[qindex]; + x->plane[i].round_fp = quants->uv_round_fp[qindex]; + x->plane[i].quant_shift = quants->uv_quant_shift[qindex]; + x->plane[i].zbin = quants->uv_zbin[qindex]; + x->plane[i].round = quants->uv_round[qindex]; + xd->plane[i].dequant = cpi->uv_dequant[qindex]; + + x->plane[i].quant_thred[0] = x->plane[i].zbin[0] * x->plane[i].zbin[0]; + x->plane[i].quant_thred[1] = x->plane[i].zbin[1] * x->plane[i].zbin[1]; + } + + x->skip_block = vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP); + x->q_index = qindex; + + x->errorperbit = rdmult >> 6; + x->errorperbit += (x->errorperbit == 0); + + vp9_initialize_me_consts(cpi, x, x->q_index); +} + +void vp9_frame_init_quantizer(VP9_COMP *cpi) { + vp9_init_plane_quantizers(cpi, &cpi->td.mb); +} + +void vp9_set_quantizer(VP9_COMMON *cm, int q) { + // quantizer has to be reinitialized with vp9_init_quantizer() if any + // delta_q changes. + cm->base_qindex = q; + cm->y_dc_delta_q = 0; + cm->uv_dc_delta_q = 0; + cm->uv_ac_delta_q = 0; +} + +// 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 vp9_quantizer_to_qindex(int quantizer) { + return quantizer_to_qindex[quantizer]; +} + +int vp9_qindex_to_quantizer(int qindex) { + int quantizer; + + for (quantizer = 0; quantizer < 64; ++quantizer) + if (quantizer_to_qindex[quantizer] >= qindex) + return quantizer; + + return 63; +} -- cgit v1.2.3