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Add single motion search for OBMC predictor

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Weighted single motion search is implemented for obmc predictor.
When NEWMV mode is used, to determine the MV for the current block,
we run weighted motion search to compare the weighted prediction
with (source - weighted prediction using neighbors' MVs), in which
the distortion is the actual prediction error of obmc prediction.

Coding gain: 0.404/0.425/0.366 for lowres/midres/hdres
Speed impact: +14% encoding time
              (obmc w/o mv search 13%-> obmc w/ mv search 27%)

Change-Id: Id7ad3fc6ba295b23d9c53c8a16a4ac1677ad835c
This commit is contained in:
Yue Chen
2016-04-22 15:09:12 -07:00
parent 1d2d1e752e
commit 370f203a40
10 changed files with 1753 additions and 11 deletions
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23
vp10/encoder/mcomp.h
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@@ -195,6 +195,29 @@ int vp10_masked_full_pixel_diamond(const struct VP10_COMP *cpi, MACROBLOCK *x,
const MV *ref_mv, MV *dst_mv,
int is_second);
#endif // CONFIG_EXT_INTER
#if CONFIG_OBMC
int vp10_obmc_full_pixel_diamond(const struct VP10_COMP *cpi, MACROBLOCK *x,
const int *wsrc, int wsrc_stride,
const int *mask, int mask_stride,
MV *mvp_full, int step_param,
int sadpb, int further_steps, int do_refine,
const vp10_variance_fn_ptr_t *fn_ptr,
const MV *ref_mv, MV *dst_mv,
int is_second);
int vp10_find_best_obmc_sub_pixel_tree_up(struct VP10_COMP *cpi, MACROBLOCK *x,
const int *wsrc, int wsrc_stride,
const int *mask, int mask_stride,
int mi_row, int mi_col,
MV *bestmv, const MV *ref_mv,
int allow_hp, int error_per_bit,
const vp10_variance_fn_ptr_t *vfp,
int forced_stop, int iters_per_step,
int *mvjcost, int *mvcost[2],
int *distortion, unsigned int *sse1,
int is_second,
int use_upsampled_ref);
#endif // CONFIG_OBMC
#ifdef __cplusplus
} // extern "C"
#endif