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accurate inter bit cost during search

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This commit is contained in:
Joose Sainio 2022-02-03 10:02:48 +02:00
parent 49c8334dd7
commit 2ac9daf6e4
1 changed files with 14 additions and 14 deletions
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28
src/search_inter.c
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@ -2067,6 +2067,10 @@ void kvz_cu_cost_inter_rd2(encoder_state_t * const state,
const int x_px = SUB_SCU(x);
const int y_px = SUB_SCU(y);
const int width = LCU_WIDTH >> depth;
cabac_data_t cabac_copy;
memcpy(&cabac_copy, &state->search_cabac, sizeof(cabac_copy));
cabac_copy.update = 1;
cu_info_t* cur_pu = LCU_GET_CU_AT_PX(lcu, x_px, y_px);
*cur_pu = *cur_cu;
@ -2090,16 +2094,15 @@ void kvz_cu_cost_inter_rd2(encoder_state_t * const state,
double no_cbf_bits;
double bits = 0;
const int skip_context = kvz_get_skip_context(x, y, lcu, NULL);
double no_skip_flag_bits = CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_skip_flag_model[skip_context], 0);
if (cur_cu->merged && cur_cu->part_size == SIZE_2Nx2N) {
no_cbf_bits = CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_skip_flag_model[skip_context], 1);
bits += CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_qt_root_cbf_model, 1) + no_skip_flag_bits;
no_cbf_bits = CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_skip_flag_model[skip_context], 1) + *inter_bitcost;
bits += kvz_mock_encode_coding_unit(state, &cabac_copy, x, y, depth, lcu, cur_cu);
}
else {
no_cbf_bits = CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_qt_root_cbf_model, 0) + no_skip_flag_bits;
bits += CTX_ENTROPY_FBITS(&state->cabac.ctx.cu_qt_root_cbf_model, 1) + no_skip_flag_bits;
no_cbf_bits = kvz_mock_encode_coding_unit(state, &cabac_copy, x, y, depth, lcu, cur_cu);
bits += no_cbf_bits - CTX_ENTROPY_FBITS(&cabac_copy.ctx.cu_qt_root_cbf_model, 0) + CTX_ENTROPY_FBITS(&cabac_copy.ctx.cu_qt_root_cbf_model, 1);
}
double no_cbf_cost = ssd + (no_cbf_bits + *inter_bitcost) * state->lambda;
double no_cbf_cost = ssd + no_cbf_bits * state->lambda;
kvz_quantize_lcu_residual(state, true, reconstruct_chroma,
x, y, depth,
@ -2120,14 +2123,15 @@ void kvz_cu_cost_inter_rd2(encoder_state_t * const state,
// If we have no coeffs after quant we already have the cost calculated
*inter_cost = no_cbf_cost;
if(cur_cu->merged && cur_cu->part_size == SIZE_2Nx2N) {
*inter_bitcost += no_cbf_bits;
*inter_bitcost = no_cbf_bits;
}
return;
}
FILE_BITS(bits, x, y, depth, "inter rd 2 bits");
*inter_cost += (*inter_bitcost + bits)* state->lambda;
*inter_cost += (bits)* state->lambda;
*inter_bitcost = bits;
if(no_cbf_cost < *inter_cost) {
cur_cu->cbf = 0;
@ -2136,12 +2140,8 @@ void kvz_cu_cost_inter_rd2(encoder_state_t * const state,
}
kvz_inter_recon_cu(state, lcu, x, y, CU_WIDTH_FROM_DEPTH(depth), true, reconstruct_chroma);
*inter_cost = no_cbf_cost;
if (cur_cu->merged && cur_cu->part_size == SIZE_2Nx2N) {
*inter_bitcost += no_cbf_bits;
}
}
else if(cur_cu->merged && cur_cu->part_size == SIZE_2Nx2N) {
*inter_bitcost += no_skip_flag_bits;
*inter_bitcost = no_cbf_bits;
}
}