ref: 74ded4863e60be648791f20ca9cc1ff456ae40ad
parent: 07711e9b2733ef89bb6dd87f4008dc7aea39ba1d
author: Jingning Han <jingning@google.com>
date: Thu Dec 4 09:53:36 EST 2014
Enable conditional skip path in rd_pick_intra_sby_mode These speed-up features for key frame coding are only turned on in the settings of hybrid non-RD and RD mode decision. It provides about 20% speed-up to the hybrid key frame coding at the expense of certain compression performance loss. For vidyo1, the key frame coding statistics are changed 9838F, 35.020 dB, 61677 us -> 9920F, 34.834 dB, 47556 us Overall rtc set compression performance is down by -0.257%. Change-Id: I0025447fda26bb7855e982955642b5f55d71b51f
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -1072,6 +1072,16 @@
/* Y Search for intra prediction mode */
for (mode = DC_PRED; mode <= TM_PRED; mode++) {
int64_t local_tx_cache[TX_MODES];
+
+ if (cpi->sf.use_nonrd_pick_mode) {
+ // These speed features are turned on in hybrid non-RD and RD mode
+ // for key frame coding in the context of real-time setting.
+ if (conditional_skipintra(mode, mode_selected))
+ continue;
+ if (*skippable)
+ break;
+ }
+
mic->mbmi.mode = mode;
super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion,
--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -106,7 +106,8 @@
: USE_LARGESTALL;
sf->reference_masking = 1;
- sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+ sf->mode_search_skip_flags = (cm->frame_type == KEY_FRAME) ? 0 :
+ FLAG_SKIP_INTRA_DIRMISMATCH |
FLAG_SKIP_INTRA_BESTINTER |
FLAG_SKIP_COMP_BESTINTRA |
FLAG_SKIP_INTRA_LOWVAR;
@@ -140,7 +141,8 @@
sf->mv.search_method = BIGDIA;
sf->mv.subpel_search_method = SUBPEL_TREE_PRUNED_MORE;
sf->adaptive_rd_thresh = 4;
- sf->mode_search_skip_flags |= FLAG_EARLY_TERMINATE;
+ if (cm->frame_type != KEY_FRAME)
+ sf->mode_search_skip_flags |= FLAG_EARLY_TERMINATE;
sf->disable_filter_search_var_thresh = 200;
sf->use_lp32x32fdct = 1;
sf->use_fast_coef_updates = ONE_LOOP_REDUCED;
@@ -226,7 +228,8 @@
}
if (speed >= 2) {
- sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH |
+ sf->mode_search_skip_flags = (cm->frame_type == KEY_FRAME) ? 0 :
+ FLAG_SKIP_INTRA_DIRMISMATCH |
FLAG_SKIP_INTRA_BESTINTER |
FLAG_SKIP_COMP_BESTINTRA |
FLAG_SKIP_INTRA_LOWVAR;
@@ -305,6 +308,7 @@
sf->partition_search_breakout_rate_thr = 200;
sf->coeff_prob_appx_step = 4;
sf->use_fast_coef_updates = is_keyframe ? TWO_LOOP : ONE_LOOP_REDUCED;
+ sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH;
if (!is_keyframe) {
int i;