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[mtt] Fix rdoq for non-square blocks

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This commit is contained in:
Joose Sainio 2022-12-21 09:17:55 +02:00
parent 50ae8cbc82
commit 34c95a5557
1 changed files with 22 additions and 14 deletions
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36
src/rdo.c
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@ -33,6 +33,7 @@
#include "rdo.h"
#include <errno.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
@ -1420,7 +1421,7 @@ void uvg_rdoq(
bool needs_block_size_trafo_scale = !false && ((log2_block_width + log2_block_height) % 2 == 1);
needs_block_size_trafo_scale |= 0; // Non log2 block size
int32_t transform_shift = MAX_TR_DYNAMIC_RANGE - encoder->bitdepth - ((log2_block_width + log2_block_height) >> 1) + needs_block_size_trafo_scale; // Represents scaling through forward transform
int32_t transform_shift = MAX_TR_DYNAMIC_RANGE - encoder->bitdepth - ((log2_block_width + log2_block_height) >> 1); // Represents scaling through forward transform
uint16_t go_rice_param = 0;
uint32_t reg_bins = (width * height * 28) >> 4;
@ -1428,7 +1429,7 @@ void uvg_rdoq(
int32_t qp_scaled = uvg_get_scaled_qp(color, state->qp, (encoder->bitdepth - 8) * 6, encoder->qp_map[0]);
int32_t q_bits = QUANT_SHIFT + qp_scaled/6 + transform_shift;
int32_t q_bits = QUANT_SHIFT + qp_scaled/6 + transform_shift - needs_block_size_trafo_scale;
const double lambda = color ? state->c_lambda : state->lambda;
const int32_t default_quant_coeff = uvg_g_quant_scales[needs_block_size_trafo_scale][qp_scaled % 6];
@ -1473,7 +1474,14 @@ void uvg_rdoq(
int32_t cg_last_scanpos = -1;
int32_t last_scanpos = -1;
uint32_t cg_num = width * height >> 4;
uint32_t cg_num = lfnst_idx > 0 ? 1 : width * height >> 4;
double dTransShift = (double)transform_shift + (needs_block_size_trafo_scale ? -0.5 : 0.0);
// Compensate for scaling of bitcount in Lagrange cost function
double scale = CTX_FRAC_ONE_BIT;
// Compensate for scaling through forward transform
scale = scale * pow(2.0, -2.0 * dTransShift);
const double default_error_scale = scale / default_quant_coeff / default_quant_coeff;
// Explicitly tell the only possible numbers of elements to be zeroed.
// Hope the compiler is able to utilize this information.
@ -1502,14 +1510,14 @@ void uvg_rdoq(
//Find last cg and last scanpos
const int max_lfnst_pos = ((height == 4 && width == 4) || (height == 8 && width == 8)) ? 7 : 15;
int32_t cg_scanpos;
int32_t cg_scanpos;
uint32_t max_scan_group_size = lfnst_idx > 0 ? max_lfnst_pos : cg_size - 1;
for (cg_scanpos = (cg_num - 1); cg_scanpos >= 0; cg_scanpos--)
{
for (int32_t scanpos_in_cg = (cg_size - 1); scanpos_in_cg >= 0; scanpos_in_cg--)
for (int32_t scanpos_in_cg = max_scan_group_size; scanpos_in_cg >= 0; scanpos_in_cg--)
{
int32_t scanpos = cg_scanpos*cg_size + scanpos_in_cg;
if (lfnst_idx > 0 && scanpos > max_lfnst_pos) break;
uint32_t blkpos = scan[scanpos];
int32_t q = use_scaling_list ? quant_coeff[blkpos] : default_quant_coeff;
int32_t level_double = coef[blkpos];
@ -1518,7 +1526,7 @@ void uvg_rdoq(
double err = (double)level_double;
cost_coeff0[scanpos] = err * err * err_scale[blkpos];
cost_coeff0[scanpos] = err * err * (use_scaling_list ? err_scale[blkpos] : default_error_scale);
dest_coeff[blkpos] = max_abs_level;
if (max_abs_level > 0) {
@ -1548,21 +1556,21 @@ void uvg_rdoq(
uint32_t cg_pos_x = cg_blkpos - (cg_pos_y * num_blk_side);
FILL(rd_stats, 0);
for (int32_t scanpos_in_cg = cg_size - 1; scanpos_in_cg >= 0; scanpos_in_cg--) {
for (int32_t scanpos_in_cg = max_scan_group_size; scanpos_in_cg >= 0; scanpos_in_cg--) {
int32_t scanpos = cg_scanpos*cg_size + scanpos_in_cg;
if (scanpos > last_scanpos) {
continue;
}
uint32_t blkpos = scan[scanpos];
int32_t q = quant_coeff[blkpos];
double temp = err_scale[blkpos];
int32_t q = use_scaling_list ? quant_coeff[blkpos] : default_quant_coeff;
double temp = (use_scaling_list ? err_scale[blkpos] : default_error_scale);
int32_t level_double = coef[blkpos];
level_double = MIN(abs(level_double) * q , MAX_INT - (1 << (q_bits - 1)));
uint32_t max_abs_level = (level_double + (1 << (q_bits - 1))) >> q_bits;
dest_coeff[blkpos] = max_abs_level;
double err = (double)level_double;
cost_coeff0[scanpos] = err * err * err_scale[blkpos];
cost_coeff0[scanpos] = err * err * (use_scaling_list ? err_scale[blkpos] : default_error_scale);
block_uncoded_cost += cost_coeff0[ scanpos ];
@ -1698,7 +1706,7 @@ void uvg_rdoq(
cost_coeffgroup_sig[cg_scanpos] = lambda * CTX_ENTROPY_BITS(&base_coeff_group_ctx[ctx_sig], 0);
// reset coeffs to 0 in this block
for (int32_t scanpos_in_cg = cg_size - 1; scanpos_in_cg >= 0; scanpos_in_cg--) {
for (int32_t scanpos_in_cg = max_scan_group_size; scanpos_in_cg >= 0; scanpos_in_cg--) {
int32_t scanpos = cg_scanpos*cg_size + scanpos_in_cg;
uint32_t blkpos = scan[scanpos];
if (dest_coeff[blkpos]){
@ -1751,7 +1759,7 @@ void uvg_rdoq(
base_cost -= cost_coeffgroup_sig[cg_scanpos];
if (sig_coeffgroup_flag[ cg_blkpos ]) {
for ( int32_t scanpos_in_cg = cg_size - 1; scanpos_in_cg >= 0; scanpos_in_cg--) {
for ( int32_t scanpos_in_cg = max_scan_group_size; scanpos_in_cg >= 0; scanpos_in_cg--) {
int32_t scanpos = cg_scanpos*cg_size + scanpos_in_cg;
if (scanpos > last_scanpos) continue;
uint32_t blkpos = scan[scanpos];