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Various wedge enhancements

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Increases number of wedges for smaller block and removes
wedge coding mode for blocks larger than 32x32.

Also adds various other enhancements for subsequent experimentation,
including adding provision for multiple smoothing functions
(though one is used currently), adds a speed feature that decides
the sign for interinter wedges using a fast mechanism, and refactors
wedge representations.

lowres: -2.651% BDRATE

Most of the gain is due to increase in codebook size for 8x8 - 16x16.

Change-Id: I50669f558c8d0d45e5a6f70aca4385a185b58b5b
This commit is contained in:
Debargha Mukherjee
2016-05-10 09:30:30 -07:00
parent e7ebe26dd5
commit fb8ea1736b
7 changed files with 485 additions and 278 deletions
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3
vp10/encoder/speed_features.c
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@@ -165,6 +165,7 @@ static void set_good_speed_feature(VP10_COMP *cpi, VP10_COMMON *cm,
sf->use_transform_domain_distortion = 1;
#if CONFIG_EXT_INTER
sf->disable_wedge_search_var_thresh = 100;
sf->fast_wedge_sign_estimate = 1;
#endif // CONFIG_EXT_INTER
}
@@ -283,6 +284,7 @@ static void set_rt_speed_feature(VP10_COMP *cpi, SPEED_FEATURES *sf,
sf->use_upsampled_references = 0;
#if CONFIG_EXT_INTER
sf->disable_wedge_search_var_thresh = 100;
sf->fast_wedge_sign_estimate = 1;
#endif // CONFIG_EXT_INTER
// Use transform domain distortion computation
@@ -517,6 +519,7 @@ void vp10_set_speed_features_framesize_independent(VP10_COMP *cpi) {
#endif // CONFIG_EXT_TILE
#if CONFIG_EXT_INTER
sf->disable_wedge_search_var_thresh = 0;
sf->fast_wedge_sign_estimate = 0;
#endif // CONFIG_EXT_INTER
for (i = 0; i < TX_SIZES; i++) {