Commit 32c4fdec authored by Paul Wilkins's avatar Paul Wilkins
Browse files

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
parent 2b06bf20
......@@ -541,7 +541,16 @@ static void set_rd_speed_thresholds_sub8x8(VP9_COMP *cpi) {
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 @@ static void set_good_speed_feature(VP9_COMMON *cm,
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 @@ static void set_good_speed_feature(VP9_COMMON *cm,
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 @@ void vp9_set_speed_features(VP9_COMP *cpi) {
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);
......
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