From a4e453f668a8d98645c034b9aa9f979bfa5af4a9 Mon Sep 17 00:00:00 2001 From: Marco Paniconi Date: Thu, 5 Apr 2018 15:54:17 -0700 Subject: [PATCH] vp9-svc: Fix to disable cyclic refresh on key superframes. Cyclic refresh is disabled on key frames, but we did not disable it for for spatial layers whose base is a key frame (i.e., on a key-superframe). This fix means generally somewhat lower frame-level QP will be used for those spatial layers whose base is a key frame, which will generally mean little better quality for the key-superframes. Change-Id: Idf090651aa2f5856fb6696c89198a9f6d5d50280 --- vp9/encoder/vp9_aq_cyclicrefresh.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/vp9/encoder/vp9_aq_cyclicrefresh.c b/vp9/encoder/vp9_aq_cyclicrefresh.c index ed43de701..ef8484f98 100644 --- a/vp9/encoder/vp9_aq_cyclicrefresh.c +++ b/vp9/encoder/vp9_aq_cyclicrefresh.c @@ -428,6 +428,8 @@ void vp9_cyclic_refresh_update_parameters(VP9_COMP *const cpi) { int thresh_low_motion = (cm->width < 720) ? 55 : 20; cr->apply_cyclic_refresh = 1; if (cm->frame_type == KEY_FRAME || cpi->svc.temporal_layer_id > 0 || + (cpi->use_svc && + cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame) || (!cpi->use_svc && rc->avg_frame_low_motion < thresh_low_motion && rc->frames_since_key > 40)) { cr->apply_cyclic_refresh = 0; -- 2.40.0