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Merge branch 'zero-coeff-check'

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This commit is contained in:
Arttu Ylä-Outinen 2018-01-29 12:42:56 +02:00
parent c73cce386a 8c53417006
commit 75a8700630
4 changed files with 166 additions and 101 deletions
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93
src/inter.c
View file

@ -306,19 +306,19 @@ static void inter_cp_with_ext_border(const kvz_pixel *ref_buf, int ref_stride,
/**
* \brief Reconstruct inter block
* \brief Reconstruct an inter PU using uniprediction.
*
* \param state encoder state
* \param ref picture to copy the data from
* \param xpos block x position
* \param ypos block y position
* \param width block width
* \param height block height
* \param xpos PU x position
* \param ypos PU y position
* \param width PU width
* \param height PU height
* \param mv_param motion vector
* \param lcu destination lcu
* \param hi_prec_out destination of high precision output (null if not needed)
* \param hi_prec_out destination of high precision output, or NULL if not needed
*/
void kvz_inter_recon_lcu(const encoder_state_t * const state,
static void inter_recon_unipred(const encoder_state_t * const state,
const kvz_picture * const ref,
int32_t xpos,
int32_t ypos,
@ -428,19 +428,19 @@ void kvz_inter_recon_lcu(const encoder_state_t * const state,
}
/**
* \brief Reconstruct bi-pred inter block
* \brief Reconstruct bi-pred inter PU
*
* \param state encoder state
* \param ref1 reference picture to copy the data from
* \param ref2 other reference picture to copy the data from
* \param xpos block x position
* \param ypos block y position
* \param width block width
* \param height block height
* \param xpos PU x position
* \param ypos PU y position
* \param width PU width
* \param height PU height
* \param mv_param motion vectors
* \param lcu destination lcu
*/
void kvz_inter_recon_lcu_bipred(const encoder_state_t * const state,
void kvz_inter_recon_bipred(const encoder_state_t * const state,
const kvz_picture * ref1,
const kvz_picture * ref2,
int32_t xpos,
@ -468,7 +468,7 @@ void kvz_inter_recon_lcu_bipred(const encoder_state_t * const state,
if (hi_prec_chroma_rec0) high_precision_rec0 = kvz_hi_prec_buf_t_alloc(LCU_WIDTH*LCU_WIDTH);
if (hi_prec_chroma_rec1) high_precision_rec1 = kvz_hi_prec_buf_t_alloc(LCU_WIDTH*LCU_WIDTH);
//Reconstruct both predictors
kvz_inter_recon_lcu(state, ref1, xpos, ypos, width, height, mv_param[0], lcu, high_precision_rec0);
inter_recon_unipred(state, ref1, xpos, ypos, width, height, mv_param[0], lcu, high_precision_rec0);
if (!hi_prec_luma_rec0){
memcpy(temp_lcu_y, lcu->rec.y, sizeof(kvz_pixel) * 64 * 64);
}
@ -476,7 +476,7 @@ void kvz_inter_recon_lcu_bipred(const encoder_state_t * const state,
memcpy(temp_lcu_u, lcu->rec.u, sizeof(kvz_pixel) * 32 * 32);
memcpy(temp_lcu_v, lcu->rec.v, sizeof(kvz_pixel) * 32 * 32);
}
kvz_inter_recon_lcu(state, ref2, xpos, ypos, width, height, mv_param[1], lcu, high_precision_rec1);
inter_recon_unipred(state, ref2, xpos, ypos, width, height, mv_param[1], lcu, high_precision_rec1);
// After reconstruction, merge the predictors by taking an average of each pixel
for (temp_y = 0; temp_y < height; ++temp_y) {
@ -506,6 +506,69 @@ void kvz_inter_recon_lcu_bipred(const encoder_state_t * const state,
if (high_precision_rec1 != 0) kvz_hi_prec_buf_t_free(high_precision_rec1);
}
/**
* Reconstruct a single CU.
*
* The CU may consist of multiple PUs, each of which can use either
* uniprediction or biprediction.
*
* \param state encoder state
* \param lcu containing LCU
* \param x x-coordinate of the CU in pixels
* \param y y-coordinate of the CU in pixels
* \param width CU width
*/
void kvz_inter_recon_cu(const encoder_state_t * const state,
lcu_t *lcu,
int32_t x,
int32_t y,
int32_t width)
{
cu_info_t *cu = LCU_GET_CU_AT_PX(lcu, SUB_SCU(x), SUB_SCU(y));
const int num_pu = kvz_part_mode_num_parts[cu->part_size];
for (int i = 0; i < num_pu; ++i) {
const int pu_x = PU_GET_X(cu->part_size, width, x, i);
const int pu_y = PU_GET_Y(cu->part_size, width, y, i);
const int pu_w = PU_GET_W(cu->part_size, width, i);
const int pu_h = PU_GET_H(cu->part_size, width, i);
cu_info_t *pu = LCU_GET_CU_AT_PX(lcu, SUB_SCU(pu_x), SUB_SCU(pu_y));
if (pu->inter.mv_dir == 3) {
const kvz_picture *const refs[2] = {
state->frame->ref->images[
state->frame->ref_LX[0][
pu->inter.mv_ref[0]]],
state->frame->ref->images[
state->frame->ref_LX[1][
pu->inter.mv_ref[1]]],
};
kvz_inter_recon_bipred(state,
refs[0], refs[1],
pu_x, pu_y,
pu_w, pu_h,
pu->inter.mv,
lcu);
} else {
const int mv_idx = pu->inter.mv_dir - 1;
const kvz_picture *const ref =
state->frame->ref->images[
state->frame->ref_LX[mv_idx][
pu->inter.mv_ref[mv_idx]]];
inter_recon_unipred(state,
ref,
pu_x, pu_y,
pu_w, pu_h,
pu->inter.mv[mv_idx],
lcu,
NULL);
}
}
}
/**
* \brief Clear unused L0/L1 motion vectors and reference
* \param cu coding unit to clear

17
src/inter.h
View file

@ -40,18 +40,13 @@ typedef struct {
} inter_merge_cand_t;
void kvz_inter_recon_cu(const encoder_state_t * const state,
lcu_t *lcu,
int32_t x,
int32_t y,
int32_t width);
void kvz_inter_recon_lcu(const encoder_state_t * const state,
const kvz_picture * ref,
int32_t xpos,
int32_t ypos,
int32_t width,
int32_t height,
const int16_t mv_param[2],
lcu_t* lcu,
hi_prec_buf_t *hi_prec_out);
void kvz_inter_recon_lcu_bipred(const encoder_state_t * const state,
void kvz_inter_recon_bipred(const encoder_state_t * const state,
const kvz_picture * ref1,
const kvz_picture * ref2,
int32_t xpos,

83
src/search.c
View file

@ -392,6 +392,7 @@ static double search_cu(encoder_state_t * const state, int x, int y, int depth,
const videoframe_t * const frame = state->tile->frame;
int cu_width = LCU_WIDTH >> depth;
double cost = MAX_INT;
double inter_zero_coeff_cost = MAX_INT;
uint32_t inter_bitcost = MAX_INT;
cu_info_t *cur_cu;
@ -518,7 +519,7 @@ static double search_cu(encoder_state_t * const state, int x, int y, int depth,
// rd2. Possibly because the luma mode search already takes chroma
// into account, so there is less of a chanse of luma mode being
// really bad for chroma.
if (state->encoder_control->cfg.rdo == 3) {
if (ctrl->cfg.rdo == 3) {
cur_cu->intra.mode_chroma = kvz_search_cu_intra_chroma(state, x, y, depth, lcu);
lcu_fill_cu_info(lcu, x_local, y_local, cu_width, cu_width, cur_cu);
}
@ -538,46 +539,30 @@ static double search_cu(encoder_state_t * const state, int x, int y, int depth,
}
kvz_lcu_set_trdepth(lcu, x, y, depth, tr_depth);
const int num_pu = kvz_part_mode_num_parts[cur_cu->part_size];
for (int i = 0; i < num_pu; ++i) {
const int pu_x = PU_GET_X(cur_cu->part_size, cu_width, x, i);
const int pu_y = PU_GET_Y(cur_cu->part_size, cu_width, y, i);
const int pu_w = PU_GET_W(cur_cu->part_size, cu_width, i);
const int pu_h = PU_GET_H(cur_cu->part_size, cu_width, i);
kvz_inter_recon_cu(state, lcu, x, y, cu_width);
cu_info_t *cur_pu = LCU_GET_CU_AT_PX(lcu, SUB_SCU(pu_x), SUB_SCU(pu_y));
if (!ctrl->cfg.lossless && !ctrl->cfg.rdoq_enable) {
const int luma_index = y_local * LCU_WIDTH + x_local;
const int chroma_index = (y_local / 2) * LCU_WIDTH_C + (x_local / 2);
if (cur_pu->inter.mv_dir == 3) {
const kvz_picture *const refs[2] = {
state->frame->ref->images[
state->frame->ref_LX[0][
cur_pu->inter.mv_ref[0]]],
state->frame->ref->images[
state->frame->ref_LX[1][
cur_pu->inter.mv_ref[1]]],
};
kvz_inter_recon_lcu_bipred(state,
refs[0], refs[1],
pu_x, pu_y,
pu_w, pu_h,
cur_pu->inter.mv,
lcu);
} else {
const int mv_idx = cur_pu->inter.mv_dir - 1;
double ssd = 0.0;
ssd += LUMA_MULT * kvz_pixels_calc_ssd(
&lcu->ref.y[luma_index], &lcu->rec.y[luma_index],
LCU_WIDTH, LCU_WIDTH, cu_width
);
ssd += CHROMA_MULT * kvz_pixels_calc_ssd(
&lcu->ref.u[chroma_index], &lcu->rec.u[chroma_index],
LCU_WIDTH_C, LCU_WIDTH_C, cu_width / 2
);
ssd += CHROMA_MULT * kvz_pixels_calc_ssd(
&lcu->ref.v[chroma_index], &lcu->rec.v[chroma_index],
LCU_WIDTH_C, LCU_WIDTH_C, cu_width / 2
);
const kvz_picture *const ref =
state->frame->ref->images[
state->frame->ref_LX[mv_idx][
cur_pu->inter.mv_ref[mv_idx]]];
inter_zero_coeff_cost = ssd + inter_bitcost * state->lambda;
kvz_inter_recon_lcu(state,
ref,
pu_x, pu_y,
pu_w, pu_h,
cur_pu->inter.mv[mv_idx],
lcu,
0);
}
// Save the pixels at a lower level of the working tree.
copy_cu_pixels(x_local, y_local, cu_width, lcu, &work_tree[depth + 1]);
}
const bool has_chroma = state->encoder_control->chroma_format != KVZ_CSP_400;
@ -589,7 +574,7 @@ static double search_cu(encoder_state_t * const state, int x, int y, int depth,
int cbf = cbf_is_set_any(cur_cu->cbf, depth);
if(cur_cu->merged && !cbf && cur_cu->part_size == SIZE_2Nx2N) {
if (cur_cu->merged && !cbf && cur_cu->part_size == SIZE_2Nx2N) {
cur_cu->merged = 0;
cur_cu->skipped = 1;
// Selecting skip reduces bits needed to code the CU
@ -615,6 +600,28 @@ static double search_cu(encoder_state_t * const state, int x, int y, int depth,
}
cost += mode_bits * state->lambda;
if (inter_zero_coeff_cost <= cost) {
cost = inter_zero_coeff_cost;
// Restore saved pixels from lower level of the working tree.
copy_cu_pixels(x_local, y_local, cu_width, &work_tree[depth + 1], lcu);
if (cur_cu->merged && cur_cu->part_size == SIZE_2Nx2N) {
cur_cu->merged = 0;
cur_cu->skipped = 1;
lcu_fill_cu_info(lcu, x_local, y_local, cu_width, cu_width, cur_cu);
}
if (cur_cu->tr_depth != depth) {
// Reset transform depth since there are no coefficients. This
// ensures that CBF is cleared for the whole area of the CU.
kvz_lcu_set_trdepth(lcu, x, y, depth, depth);
}
cur_cu->cbf = 0;
lcu_set_coeff(lcu, x_local, y_local, cu_width, cur_cu);
}
}
bool can_split_cu =

2
src/search_inter.c
View file

@ -1495,7 +1495,7 @@ static void search_pu_inter(encoder_state_t * const state,
continue;
}
kvz_inter_recon_lcu_bipred(state,
kvz_inter_recon_bipred(state,
state->frame->ref->images[
state->frame->ref_LX[0][merge_cand[i].ref[0]]
],