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https://github.com/ultravideo/uvg266.git
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WIP: work on tmvp on inter
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Marko Viitanen
parent
e538a94eda
commit
6a25cd3248
129
src/inter.c
129
src/inter.c
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@ -1096,31 +1096,99 @@ static void get_mv_cand_from_spatial(const encoder_state_t * const state,
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*/
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// Find temporal reference, closest POC
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if (state->frame->poc > 1 && state->frame->ref->used_size && candidates < AMVP_MAX_NUM_CANDS) {
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uint32_t poc_diff = UINT_MAX;
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for (int temporal_cand = 0; temporal_cand < state->frame->ref->used_size; temporal_cand++) {
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int td = state->frame->poc - state->frame->ref->pocs[temporal_cand];
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td = td < 0 ? UINT_MAX : td;
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if (td < poc_diff) {
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poc_diff = td;
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}
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}
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const cu_info_t *selected_CU = (h != NULL) ? h : (c3 != NULL) ? c3 : NULL;
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if (selected_CU) {
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int td = selected_CU->inter.mv_ref[reflist] + 1;
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int tb = cur_cu->inter.mv_ref[reflist] + 1;
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// If the selected CU does not have the correct list (L0/L1) vector, use the other
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if (!selected_CU->inter.mv_dir & (1 << reflist)) {
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td = selected_CU->inter.mv_ref[reflist2nd] + 1;
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int td, tb;
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// ToDo: allow custom reference lists
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// Without GOP, assume that every frame is a reference frame in an order
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if (!state->encoder_control->cfg->gop_len) {
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td = selected_CU->inter.mv_ref[reflist] + 1;
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tb = cur_cu->inter.mv_ref[reflist] + 1;
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} else {
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// Handle with GOP
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//ToDo: allow other than L0[0] for prediction
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//Fetch ref idx of the selected CU in L0[0] ref list
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uint32_t poc_diff = UINT_MAX;
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uint32_t closest_ref = 0;
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uint32_t closest_ref_poc = 0;
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for (int temporal_cand = 0; temporal_cand < state->frame->ref->used_size; temporal_cand++) {
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int ref_poc = state->frame->ref->pocs[temporal_cand];
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int td = state->frame->poc - ref_poc;
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td = td < 0 ? UINT_MAX : td;
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if (td < poc_diff) {
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closest_ref = temporal_cand;
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poc_diff = td;
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}
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}
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closest_ref_poc = state->frame->ref->pocs[closest_ref];
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uint32_t colocated_ref_mv_ref = selected_CU->inter.mv_ref[reflist];
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if (!selected_CU->inter.mv_dir & (1 << reflist)) {
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colocated_ref_mv_ref = selected_CU->inter.mv_ref[reflist2nd];
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}
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int32_t colocated_ref_frame = state->frame->num+1;
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uint32_t gop_len = state->encoder_control->cfg->gop_len;
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uint32_t base_POC = state->frame->poc - (state->frame->poc % gop_len);
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// Search the POC using the GOP structure
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for (; colocated_ref_frame > 0; colocated_ref_frame--) {
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if (base_POC + state->encoder_control->cfg->gop[colocated_ref_frame % gop_len].poc_offset == closest_ref_poc) {
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break;
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}
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if (colocated_ref_frame % gop_len == 0) base_POC -= gop_len;
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}
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uint32_t colocated_pocs[MAX_REF_PIC_COUNT];
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base_POC = closest_ref_poc - (closest_ref_poc % gop_len);
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// Reconstruct ref list
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uint32_t max_refs = (state->encoder_control->cfg->gop[colocated_ref_frame % gop_len].ref_neg_count + state->encoder_control->cfg->gop[colocated_ref_frame % gop_len].ref_pos_count);
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uint32_t current_ref = 0;
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for (int32_t temp_frame = colocated_ref_frame-1; temp_frame >= 0; temp_frame--) {
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if (state->encoder_control->cfg->gop[temp_frame % gop_len].is_ref) {
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colocated_pocs[current_ref] = base_POC + state->encoder_control->cfg->gop[temp_frame % gop_len].poc_offset;
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if (current_ref == max_refs) break;
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current_ref++;
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}
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if (temp_frame == 0) {
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colocated_pocs[current_ref] = 0;
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current_ref++;
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break;
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}
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if (temp_frame % gop_len == 0) base_POC -= gop_len;
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}
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td = closest_ref_poc - colocated_pocs[selected_CU->inter.mv_ref[colocated_ref_mv_ref]];
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tb = state->frame->poc - state->frame->ref->pocs[cur_cu->inter.mv_ref[reflist]];
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}
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int scale = CALCULATE_SCALE(NULL, tb, td);
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mv_cand[candidates][0] = ((scale * selected_CU->inter.mv[0][0] + 127 + (scale * selected_CU->inter.mv[0][0] < 0)) >> 8);
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mv_cand[candidates][1] = ((scale * selected_CU->inter.mv[0][1] + 127 + (scale * selected_CU->inter.mv[0][1] < 0)) >> 8);
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int used_reflist = reflist;
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// If the selected CU does not have the correct list (L0/L1) vector, use the other
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if (!selected_CU->inter.mv_dir & (1 << reflist)) {
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//td = state->frame->poc - state->previous_encoder_state->frame->ref->pocs[selected_CU->inter.mv_ref[reflist2nd]];
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used_reflist = reflist2nd;
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}
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mv_cand[candidates][0] = ((scale * selected_CU->inter.mv[used_reflist][0] + 127 + (scale * selected_CU->inter.mv[used_reflist][0] < 0)) >> 8);
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mv_cand[candidates][1] = ((scale * selected_CU->inter.mv[used_reflist][1] + 127 + (scale * selected_CU->inter.mv[used_reflist][1] < 0)) >> 8);
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candidates++;
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}
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@ -1320,9 +1388,8 @@ uint8_t kvz_inter_get_merge_cand(const encoder_state_t * const state,
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}
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}
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}
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return candidates;
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if (state->encoder_control->cfg.tmvp_enable) {
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#define CALCULATE_SCALE(cu,tb,td) ((tb * ((0x4000 + (abs(td)>>1))/td) + 32) >> 6)
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if (candidates < MRG_MAX_NUM_CANDS && state->frame->ref->used_size) {
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@ -1343,29 +1410,23 @@ uint8_t kvz_inter_get_merge_cand(const encoder_state_t * const state,
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}
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}
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int td = selected_CU->inter.mv_ref[0] + 1;
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int tb = poc_diff;
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int tb = state->frame->poc - state->frame->ref->pocs[selected_CU->inter.mv_ref[0]];
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int td = poc_diff;
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int scale = CALCULATE_SCALE(NULL, tb, td);
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int scale = ((tb * ((0x4000 + (abs(td) >> 1)) / td) + 32) >> 6);
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// L0 list
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if (selected_CU->inter.mv_dir & 0x1) {
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mv_cand[candidates].mv[0][0] = ((scale * selected_CU->inter.mv[0][0] + 127 + (scale * selected_CU->inter.mv[0][0] < 0)) >> 8);
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mv_cand[candidates].mv[0][1] = ((scale * selected_CU->inter.mv[0][1] + 127 + (scale * selected_CU->inter.mv[0][1] < 0)) >> 8);
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}
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mv_cand[candidates].mv[0][0] = ((scale * selected_CU->inter.mv[0][0] + 127 + (scale * selected_CU->inter.mv[0][0] < 0)) >> 8);
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mv_cand[candidates].mv[0][1] = ((scale * selected_CU->inter.mv[0][1] + 127 + (scale * selected_CU->inter.mv[0][1] < 0)) >> 8);
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mv_cand[candidates].mv[1][0] = ((scale * selected_CU->inter.mv[1][0] + 127 + (scale * selected_CU->inter.mv[1][0] < 0)) >> 8);
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mv_cand[candidates].mv[1][1] = ((scale * selected_CU->inter.mv[1][1] + 127 + (scale * selected_CU->inter.mv[1][1] < 0)) >> 8);
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// L1 list
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if (selected_CU->inter.mv_dir & 0x2) {
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mv_cand[candidates].mv[1][0] = ((scale * selected_CU->inter.mv[1][0] + 127 + (scale * selected_CU->inter.mv[1][0] < 0)) >> 8);
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mv_cand[candidates].mv[1][1] = ((scale * selected_CU->inter.mv[1][1] + 127 + (scale * selected_CU->inter.mv[1][1] < 0)) >> 8);
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}
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mv_cand[candidates].dir = selected_CU->inter.mv_dir;
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mv_cand[candidates].ref[0] = 0;
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mv_cand[candidates].ref[0] = selected_CU->inter.mv_ref[0];
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mv_cand[candidates].ref[1] = selected_CU->inter.mv_ref[1];
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candidates++;
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}
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}
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#undef CALCULATE_SCALE
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}
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if (candidates < MRG_MAX_NUM_CANDS && state->frame->slicetype == KVZ_SLICE_B) {
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