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vp9: SVC: Increase the partiiton and acskip thresholds

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Increase the partition and acskip thresholds for temporal
enhancement layers.

~1-2% speedup, with negligible loss in quality.

Change-Id: Id527398a05855298ad9ddac10ada972482415627
This commit is contained in:
Marco
2017-05-11 12:10:35 -07:00
parent 3caaf21c5b
commit c5c31b9eb6
4 changed files with 20 additions and 13 deletions
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19
vp9/encoder/vp9_denoiser.c
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@@ -572,21 +572,26 @@ void vp9_denoiser_set_noise_level(VP9_DENOISER *denoiser, int noise_level) {
// Scale/increase the partition threshold for denoiser speed-up.
int64_t vp9_scale_part_thresh(int64_t threshold, VP9_DENOISER_LEVEL noise_level,
int content_state) {
int content_state, int temporal_layer_id) {
if ((content_state == kLowSadLowSumdiff) ||
(content_state == kHighSadLowSumdiff) ||
(content_state == kLowVarHighSumdiff) || noise_level == kDenHigh)
return (3 * threshold) >> 1;
else
(content_state == kLowVarHighSumdiff) || (noise_level == kDenHigh) ||
(temporal_layer_id != 0)) {
int64_t scaled_thr =
(temporal_layer_id < 2) ? (3 * threshold) >> 1 : (7 * threshold) >> 2;
return scaled_thr;
} else {
return (5 * threshold) >> 2;
}
}
// Scale/increase the ac skip threshold for denoiser speed-up.
int64_t vp9_scale_acskip_thresh(int64_t threshold,
VP9_DENOISER_LEVEL noise_level,
int abs_sumdiff) {
VP9_DENOISER_LEVEL noise_level, int abs_sumdiff,
int temporal_layer_id) {
if (noise_level >= kDenLow && abs_sumdiff < 5)
return threshold *= (noise_level == kDenLow) ? 2 : 6;
return threshold *=
(noise_level == kDenLow) ? 2 : (temporal_layer_id == 2) ? 10 : 6;
else
return threshold;
}