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-rw-r--r--vp10/encoder/quantize.c389
1 files changed, 0 insertions, 389 deletions
diff --git a/vp10/encoder/quantize.c b/vp10/encoder/quantize.c
deleted file mode 100644
index 86b324f1a..000000000
--- a/vp10/encoder/quantize.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/*
- * 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 <math.h>
-#include "./vpx_dsp_rtcd.h"
-#include "vpx_mem/vpx_mem.h"
-#include "vpx_ports/mem.h"
-
-#include "vp10/common/quant_common.h"
-#include "vp10/common/seg_common.h"
-
-#include "vp10/encoder/encoder.h"
-#include "vp10/encoder/quantize.h"
-#include "vp10/encoder/rd.h"
-
-void vp10_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 vp10_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 = abs_coeff + round_ptr[rc != 0];
- const uint32_t abs_qcoeff = (uint32_t)((tmp * quant_ptr[rc != 0]) >> 16);
- qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
- dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
- if (abs_qcoeff)
- eob = i;
- }
- }
- *eob_ptr = eob + 1;
-}
-#endif
-
-// TODO(jingning) Refactor this file and combine functions with similar
-// operations.
-void vp10_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 vp10_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++) {
- uint32_t abs_qcoeff = 0;
- 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 >= (dequant_ptr[rc != 0] >> 2)) {
- const int64_t tmp = abs_coeff
- + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
- abs_qcoeff = (uint32_t) ((tmp * quant_ptr[rc != 0]) >> 15);
- qcoeff_ptr[rc] = (tran_low_t)((abs_qcoeff ^ coeff_sign) - coeff_sign);
- dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
- }
-
- if (abs_qcoeff)
- eob = i;
- }
- }
- *eob_ptr = eob + 1;
-}
-#endif
-
-void vp10_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) {
- vpx_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
- vpx_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 = vp10_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 vp10_init_quantizer(VP10_COMP *cpi) {
- VP10_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 ? vp10_dc_quant(q, cm->y_dc_delta_q, cm->bit_depth)
- : vp10_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 ? vp10_dc_quant(q, cm->uv_dc_delta_q, cm->bit_depth)
- : vp10_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 vp10_init_plane_quantizers(VP10_COMP *cpi, MACROBLOCK *x) {
- const VP10_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 = vp10_get_qindex(&cm->seg, segment_id, cm->base_qindex);
- const int rdmult = vp10_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 = segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP);
- x->q_index = qindex;
-
- x->errorperbit = rdmult >> 6;
- x->errorperbit += (x->errorperbit == 0);
-
- vp10_initialize_me_consts(cpi, x, x->q_index);
-}
-
-void vp10_frame_init_quantizer(VP10_COMP *cpi) {
- vp10_init_plane_quantizers(cpi, &cpi->td.mb);
-}
-
-void vp10_set_quantizer(VP10_COMMON *cm, int q) {
- // quantizer has to be reinitialized with vp10_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 vp10_quantizer_to_qindex(int quantizer) {
- return quantizer_to_qindex[quantizer];
-}
-
-int vp10_qindex_to_quantizer(int qindex) {
- int quantizer;
-
- for (quantizer = 0; quantizer < 64; ++quantizer)
- if (quantizer_to_qindex[quantizer] >= qindex)
- return quantizer;
-
- return 63;
-}
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