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| author | Hui Su <huisu@google.com> | 2018-08-06 18:01:25 -0700 |
|---|---|---|
| committer | Hui Su <huisu@google.com> | 2018-08-07 11:10:57 -0700 |
| commit | 763c9e08dd9fd7aa3acca3bf3a89a7c36d640050 (patch) | |
| tree | dce4d5d2b9f5f8d52e8a8d35cc83bb3a103831b9 /vp9/encoder/vp9_rdopt.c | |
| parent | 1907d91c42e25b9bc78d0f7c04963109bb3e4d8f (diff) | |
| download | libvpx-763c9e08dd9fd7aa3acca3bf3a89a7c36d640050.tar libvpx-763c9e08dd9fd7aa3acca3bf3a89a7c36d640050.tar.gz libvpx-763c9e08dd9fd7aa3acca3bf3a89a7c36d640050.tar.bz2 libvpx-763c9e08dd9fd7aa3acca3bf3a89a7c36d640050.zip | |
Add enhanced_full_pixel_motion_search feature
Do some extra full pixel search to improve motion vector quality.
Currently it is enabled for speed 1 only; disabled for real time mode.
Coding gain for speed 1:
avg_psnr ovr_psnr ssim
lowres -0.23% -0.23% -0.35%
midres -0.33% -0.35% -0.38%
hdres -0.28% -0.29% -0.28%
Tested encoding time over 10 HD sequences. Overall speed overhead is
1.5% for QP=30; 0.6 % for QP=40.
Change-Id: Ic2ea4d78c4979de9d5090c9d7c702944f155f8af
Diffstat (limited to 'vp9/encoder/vp9_rdopt.c')
| -rw-r--r-- | vp9/encoder/vp9_rdopt.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c index 4005f85b1..b20d57332 100644 --- a/vp9/encoder/vp9_rdopt.c +++ b/vp9/encoder/vp9_rdopt.c @@ -2409,6 +2409,31 @@ static void single_motion_search(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, cpi, x, bsize, &mvp_full, step_param, cpi->sf.mv.search_method, sadpb, cond_cost_list(cpi, cost_list), &ref_mv, &tmp_mv->as_mv, INT_MAX, 1); + if (cpi->sf.enhanced_full_pixel_motion_search) { + if (x->mv_best_ref_index[ref] == 2) { + const int diff_row = ((int)pred_mv[0].row - pred_mv[2].row) >> 3; + const int diff_col = ((int)pred_mv[0].col - pred_mv[2].col) >> 3; + const int diff_sse = diff_row * diff_row + diff_col * diff_col; + // If pred_mv[0] and pred_mv[2] are very different, also search around + // pred_mv[0]. + if (diff_sse > 10) { + int this_me; + MV this_mv; + mvp_full = pred_mv[0]; + mvp_full.col >>= 3; + mvp_full.row >>= 3; + this_me = vp9_full_pixel_search(cpi, x, bsize, &mvp_full, step_param, + cpi->sf.mv.search_method, sadpb, + cond_cost_list(cpi, cost_list), &ref_mv, + &this_mv, INT_MAX, 1); + if (this_me < bestsme) { + tmp_mv->as_mv = this_mv; + bestsme = this_me; + } + } + } + } + x->mv_limits = tmp_mv_limits; if (bestsme < INT_MAX) { |