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Fixed TMVP scaling

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This commit is contained in:
Marko Viitanen 2016-08-10 11:28:48 +03:00
parent c664bc8cf7
commit fd52dac1f7
1 changed files with 23 additions and 9 deletions
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26
src/inter.c
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@ -1123,15 +1123,16 @@ static void get_mv_cand_from_spatial(const encoder_state_t * const state,
}
if (selected_CU) {
int td = state->global->poc - state->global->ref->pocs[closest_ref];
int tb = state->global->poc - state->global->ref->pocs[cur_cu->inter.mv_ref[reflist]];
int td = selected_CU->inter.mv_ref[reflist]+1;
int tb = cur_cu->inter.mv_ref[reflist]+1;
int scale = 256;// CALCULATE_SCALE(NULL, tb, td);
int scale = CALCULATE_SCALE(NULL, tb, td);
mv_cand[candidates][0] = ((scale * selected_CU->inter.mv[0][0] + 127 + (scale * selected_CU->inter.mv[0][0] < 0)) >> 8);
mv_cand[candidates][1] = ((scale * selected_CU->inter.mv[0][1] + 127 + (scale * selected_CU->inter.mv[0][1] < 0)) >> 8);
candidates++;
}
#undef CALCULATE_SCALE
}
#endif
@ -1328,6 +1329,8 @@ uint8_t kvz_inter_get_merge_cand(const encoder_state_t * const state,
}
#if ENABLE_TEMPORAL_MVP
#define CALCULATE_SCALE(cu,tb,td) ((tb * ((0x4000 + (abs(td)>>1))/td) + 32) >> 6)
if (candidates < MRG_MAX_NUM_CANDS && state->global->ref->used_size) {
uint32_t poc_diff = UINT_MAX;
@ -1355,13 +1358,24 @@ uint8_t kvz_inter_get_merge_cand(const encoder_state_t * const state,
}
if (selected_CU) {
mv_cand[candidates].mv[0][0] = selected_CU->inter.mv[0][0];
mv_cand[candidates].mv[0][1] = selected_CU->inter.mv[0][1];
mv_cand[candidates].dir = 1;
int td = selected_CU->inter.mv_ref[0] + 1;
int tb = 1;
int scale = CALCULATE_SCALE(NULL, tb, td);
mv_cand[candidates].mv[0][0] = ((scale * selected_CU->inter.mv[0][0] + 127 + (scale * selected_CU->inter.mv[0][0] < 0)) >> 8);
mv_cand[candidates].mv[0][1] = ((scale * selected_CU->inter.mv[0][1] + 127 + (scale * selected_CU->inter.mv[0][1] < 0)) >> 8);
/*
ToDo: temporal prediction in B-pictures
mv_cand[candidates].mv[1][0] = selected_CU->inter.mv[1][0];
mv_cand[candidates].mv[1][1] = selected_CU->inter.mv[1][1];
*/
mv_cand[candidates].dir = selected_CU->inter.mv_dir;
mv_cand[candidates].ref[0] = 0;
candidates++;
}
}
#undef CALCULATE_SCALE
#endif
if (candidates < MRG_MAX_NUM_CANDS && state->frame->slicetype == KVZ_SLICE_B) {