From 49b2330d8b3e8efa39af9195c984ca46d0b761e2 Mon Sep 17 00:00:00 2001 From: Yunqing Wang Date: Wed, 19 Mar 2014 11:52:13 -0700 Subject: [PATCH] Add prediction mode skipping in non-rd situation In non-rd pick_mode code, added mode skipping according to thresholds. Used rd thresholds now, but we can modified them later for real-time case. RTC set borg test showed a 0.095% PSNR gain. For different rtc clips, the real-time(speed 7) encoder speedup is 2% - 10%. Change-Id: Ic72535c96b891092c662453be32d3168f7e34dcc --- vp9/encoder/vp9_pickmode.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/vp9/encoder/vp9_pickmode.c b/vp9/encoder/vp9_pickmode.c index 6c84144..a899d40 100644 --- a/vp9/encoder/vp9_pickmode.c +++ b/vp9/encoder/vp9_pickmode.c @@ -227,6 +227,12 @@ int64_t vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, intra_cost_penalty, 0); const int64_t intra_mode_cost = 50; + unsigned char segment_id = mbmi->segment_id; + const int *const rd_threshes = cpi->rd_threshes[segment_id][bsize]; + const int *const rd_thresh_freq_fact = cpi->rd_thresh_freq_fact[bsize]; + // Mode index conversion form THR_MODES to MB_PREDICTION_MODE for a ref frame. + int mode_idx[MB_MODE_COUNT] = {0}; + x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH; x->skip = 0; @@ -270,6 +276,14 @@ int64_t vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, mbmi->ref_frame[0] = ref_frame; + // Set conversion index for LAST_FRAME. + if (ref_frame == LAST_FRAME) { + mode_idx[NEARESTMV] = THR_NEARESTMV; // LAST_FRAME, NEARESTMV + mode_idx[NEARMV] = THR_NEARMV; // LAST_FRAME, NEARMV + mode_idx[ZEROMV] = THR_ZEROMV; // LAST_FRAME, ZEROMV + mode_idx[NEWMV] = THR_NEWMV; // LAST_FRAME, NEWMV + } + for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) { int rate_mv = 0; @@ -277,6 +291,11 @@ int64_t vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, (1 << INTER_OFFSET(this_mode))) continue; + if (best_rd < ((int64_t)rd_threshes[mode_idx[this_mode]] * + rd_thresh_freq_fact[this_mode] >> 5) || + rd_threshes[mode_idx[this_mode]] == INT_MAX) + continue; + if (this_mode == NEWMV) { if (this_rd < (int64_t)(1 << num_pels_log2_lookup[bsize])) continue; -- 2.7.4