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| author | Marco <marpan@google.com> | 2016-12-15 16:10:30 -0800 |
|---|---|---|
| committer | Marco <marpan@google.com> | 2016-12-21 12:12:55 -0800 |
| commit | e7c453b613ffc2baab4b04cc514fd4a0a15c8927 (patch) | |
| tree | a3c0e0f43fec7e61b2382acbdc075213576718cc /vp9/encoder/vp9_pickmode.c | |
| parent | b5770a20076387cf39fd1faff2a33826e18812e2 (diff) | |
| download | libvpx-e7c453b613ffc2baab4b04cc514fd4a0a15c8927.tar libvpx-e7c453b613ffc2baab4b04cc514fd4a0a15c8927.tar.gz libvpx-e7c453b613ffc2baab4b04cc514fd4a0a15c8927.tar.bz2 libvpx-e7c453b613ffc2baab4b04cc514fd4a0a15c8927.zip | |
vp9: 1 pass vbr: Skip find_predictors in pickmode when source is altref.
When source frame is altref, we only do zero-mv mode, so we can skip
the find_predictors(). No change in compression.
Small speed gain, ~1%.
Only affects 1 pass vbr with lookhead altref, for ytlive with
the macro flag USE_ALTREF_FOR_ONE_PASS on.
Change-Id: I9318c5da8521f017bf54919cd652438b3a6313d1
Diffstat (limited to 'vp9/encoder/vp9_pickmode.c')
| -rw-r--r-- | vp9/encoder/vp9_pickmode.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/vp9/encoder/vp9_pickmode.c b/vp9/encoder/vp9_pickmode.c index 84b1b5d9b..33f3f5a47 100644 --- a/vp9/encoder/vp9_pickmode.c +++ b/vp9/encoder/vp9_pickmode.c @@ -1396,6 +1396,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, int perform_intra_pred = 1; int use_golden_nonzeromv = 1; int force_skip_low_temp_var = 0; + int skip_ref_find_pred[4] = { 0 }; #if CONFIG_VP9_TEMPORAL_DENOISING VP9_PICKMODE_CTX_DEN ctx_den; int64_t zero_last_cost_orig = INT64_MAX; @@ -1470,9 +1471,15 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, usable_ref_frame = GOLDEN_FRAME; } - if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR && - (cpi->rc.alt_ref_gf_group || cpi->rc.is_src_frame_alt_ref)) - usable_ref_frame = ALTREF_FRAME; + if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) { + if (cpi->rc.alt_ref_gf_group || cpi->rc.is_src_frame_alt_ref) + usable_ref_frame = ALTREF_FRAME; + + if (cpi->rc.is_src_frame_alt_ref) { + skip_ref_find_pred[LAST_FRAME] = 1; + skip_ref_find_pred[GOLDEN_FRAME] = 1; + } + } // For svc mode, on spatial_layer_id > 0: if the reference has different scale // constrain the inter mode to only test zero motion. @@ -1505,9 +1512,11 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, use_golden_nonzeromv = 0; for (ref_frame = LAST_FRAME; ref_frame <= usable_ref_frame; ++ref_frame) { - find_predictors(cpi, x, ref_frame, frame_mv, const_motion, - &ref_frame_skip_mask, flag_list, tile_data, mi_row, mi_col, - yv12_mb, bsize, force_skip_low_temp_var); + if (!skip_ref_find_pred[ref_frame]) { + find_predictors(cpi, x, ref_frame, frame_mv, const_motion, + &ref_frame_skip_mask, flag_list, tile_data, mi_row, + mi_col, yv12_mb, bsize, force_skip_low_temp_var); + } } for (idx = 0; idx < RT_INTER_MODES; ++idx) { @@ -1527,6 +1536,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, ref_frame = ref_mode_set_svc[idx].ref_frame; } if (ref_frame > usable_ref_frame) continue; + if (skip_ref_find_pred[ref_frame]) continue; if (sf->short_circuit_flat_blocks && x->source_variance == 0 && this_mode != NEARESTMV) { |