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Fix a setting in cyclic refresh.

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Use the correct period (in terms of cr->percent_refresh) for the condition
of larger delta-qp following key frame.
And account for larger interval for temporal layers.

Change-Id: Ibb43f5200f9b1eeb8bbb8211327b08ecda3c3b8a
This commit is contained in:
Marco 2015-08-07 10:14:01 -07:00
parent eaa8043a31
commit dc36e5aff0
1 changed files with 4 additions and 1 deletions
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5
vp9/encoder/vp9_aq_cyclicrefresh.c
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@ -459,7 +459,10 @@ void vp9_cyclic_refresh_update_parameters(VP9_COMP *const cpi) {
cr->time_for_refresh = 0;
// Use larger delta-qp (increase rate_ratio_qdelta) for first few (~4)
// periods of the refresh cycle, after a key frame.
if (rc->frames_since_key < 4 * cr->percent_refresh)
// Account for larger interval on base layer for temporal layers.
if (cr->percent_refresh > 0 &&
rc->frames_since_key < (4 * cpi->svc.number_temporal_layers) *
(100 / cr->percent_refresh))
cr->rate_ratio_qdelta = 3.0;
else
cr->rate_ratio_qdelta = 2.0;