From 7eb7d6b22742ed0436f52c7e9dae4ce7d90b0ccd Mon Sep 17 00:00:00 2001 From: Marco Date: Mon, 15 Aug 2016 10:22:40 -0700 Subject: vp9 non-rd pickmode: Add limit on newmv-last and golden bias. Add option, for newmv-last, to limit the rd-threshold update for early exit, under a source varianace condition. This can improve visual quality in low texture moving areas, like forehead/faces. Also add bias against golden to improve the speed/fps, will little/negligible loss in quality. Only affects CBR mode, non-svc, non-screen-content. Change-Id: I3a5229eee860c71499a6fd464c450b167b07534d --- vp9/encoder/vp9_pickmode.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) (limited to 'vp9/encoder/vp9_pickmode.c') diff --git a/vp9/encoder/vp9_pickmode.c b/vp9/encoder/vp9_pickmode.c index 9186039c1..b95514332 100644 --- a/vp9/encoder/vp9_pickmode.c +++ b/vp9/encoder/vp9_pickmode.c @@ -978,19 +978,21 @@ static int mode_offset(const PREDICTION_MODE mode) { } } -static INLINE void update_thresh_freq_fact(VP9_COMP *cpi, - TileDataEnc *tile_data, - BLOCK_SIZE bsize, - MV_REFERENCE_FRAME ref_frame, - THR_MODES best_mode_idx, - PREDICTION_MODE mode) { +static INLINE void update_thresh_freq_fact( + VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance, + BLOCK_SIZE bsize, MV_REFERENCE_FRAME ref_frame, THR_MODES best_mode_idx, + PREDICTION_MODE mode) { THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)]; int *freq_fact = &tile_data->thresh_freq_fact[bsize][thr_mode_idx]; if (thr_mode_idx == best_mode_idx) *freq_fact -= (*freq_fact >> 4); - else + else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV && + ref_frame == LAST_FRAME && source_variance < 5) { + *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32); + } else { *freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT); + } } void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost, @@ -1438,7 +1440,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, mi->tx_size = VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cm->tx_mode]); - if (sf->short_circuit_flat_blocks) { + if (sf->short_circuit_flat_blocks || sf->limit_newmv_early_exit) { #if CONFIG_VP9_HIGHBITDEPTH if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) x->source_variance = vp9_high_get_sby_perpixel_variance( @@ -1558,6 +1560,13 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)]; mode_rd_thresh = best_mode_skip_txfm ? rd_threshes[mode_index] << 1 : rd_threshes[mode_index]; + + // Increase mode_rd_thresh value for GOLDEN_FRAME for improved encoding + // speed with little/no subjective quality loss. + if (cpi->sf.bias_golden && ref_frame == GOLDEN_FRAME && + cpi->rc.frames_since_golden > 4) + mode_rd_thresh = mode_rd_thresh << 3; + if (rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh, rd_thresh_freq_fact[mode_index])) continue; @@ -2032,16 +2041,16 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data, // TODO(yunqingwang): Check intra mode mask and only update freq_fact // for those valid modes. for (i = 0; i < intra_modes; i++) { - update_thresh_freq_fact(cpi, tile_data, bsize, INTRA_FRAME, - best_mode_idx, intra_mode_list[i]); + update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize, + INTRA_FRAME, best_mode_idx, intra_mode_list[i]); } } else { for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) { PREDICTION_MODE this_mode; if (best_ref_frame != ref_frame) continue; for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { - update_thresh_freq_fact(cpi, tile_data, bsize, ref_frame, - best_mode_idx, this_mode); + update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize, + ref_frame, best_mode_idx, this_mode); } } } -- cgit v1.2.3