ref: 32c4fdec7862657bc3865ca0f2dd151ee0e45646
parent: 2b06bf20ce7e6ead8ea43dc9ad5bcc6674fee8d8
author: Paul Wilkins <paulwilkins@google.com>
date: Fri Mar 21 12:14:46 EDT 2014
Experimental change to speed 1 settings. Allow tx search for ARF and GF helps quality but a little slower. Setting subpel_iters_per_step to 1 improves encode speed. Setting sf->mode_skip_start = 10 improves speed. Initial local results suggest overall impact on quality is neutral but encode is up to 15% faster. Change-Id: Ibde02cae6626a44c10a1da0cefe888afbb51f037
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -541,7 +541,16 @@
sf->thresh_mult_sub8x8[THR_COMP_GA] = INT_MAX;
}
-static void set_good_speed_feature(VP9_COMMON *cm,
+// Intra only frames, golden frames (except alt ref overlays) and
+// alt ref frames tend to be coded at a higher than ambient quality
+static INLINE int frame_is_boosted(const VP9_COMP *cpi,
+ const VP9_COMMON *const cm) {
+ return frame_is_intra_only(cm) || cpi->refresh_alt_ref_frame ||
+ (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref);
+}
+
+static void set_good_speed_feature(VP9_COMP *cpi,
+ VP9_COMMON *cm,
SPEED_FEATURES *sf,
int speed) {
int i;
@@ -551,7 +560,7 @@
if (speed == 1) {
sf->use_square_partition_only = !frame_is_intra_only(cm);
sf->less_rectangular_check = 1;
- sf->tx_size_search_method = frame_is_intra_only(cm)
+ sf->tx_size_search_method = frame_is_boosted(cpi, cm)
? USE_FULL_RD : USE_LARGESTALL;
if (MIN(cm->width, cm->height) >= 720)
@@ -568,6 +577,8 @@
sf->intra_y_mode_mask[TX_32X32] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_32X32] = INTRA_DC_H_V;
sf->intra_uv_mode_mask[TX_16X16] = INTRA_DC_H_V;
+ sf->subpel_iters_per_step = 1;
+ sf->mode_skip_start = 10;
}
if (speed == 2) {
sf->use_square_partition_only = !frame_is_intra_only(cm);
@@ -937,7 +948,7 @@
case MODE_FIRSTPASS:
case MODE_GOODQUALITY:
case MODE_SECONDPASS:
- set_good_speed_feature(cm, sf, speed);
+ set_good_speed_feature(cpi, cm, sf, speed);
break;
case MODE_REALTIME:
set_rt_speed_feature(cm, sf, speed);
--
⑨