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Limit inter-layer prediction to key pictures.

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This unconditionally limits usage of VP9 SVC inter-layer prediction to
frames of key picture.

Ideally we would like to let an application to configure SVC options.
But currently there is no API for this.

Bug: none
Change-Id: I21a84dafc946be122514d5b6bf327b65251f1115
Reviewed-on: https://webrtc-review.googlesource.com/76640
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23224}
This commit is contained in:
Sergey Silkin
2018-05-14 18:25:06 +02:00
committed by Commit Bot
parent 1d4526039c
commit 7dcca4b9ed
1 changed files with 3 additions and 0 deletions
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3
media/engine/webrtcvideoengine.cc
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@ -479,6 +479,9 @@ WebRtcVideoChannel::WebRtcVideoSendStream::ConfigureVideoEncoderSettings(
num_spatial_layers, kConferenceMaxNumSpatialLayers); num_spatial_layers, kConferenceMaxNumSpatialLayers);
vp9_settings.numberOfTemporalLayers = std::min<unsigned char>( vp9_settings.numberOfTemporalLayers = std::min<unsigned char>(
num_temporal_layers, kConferenceMaxNumTemporalLayers); num_temporal_layers, kConferenceMaxNumTemporalLayers);
// Limit inter-layer prediction to key pictures.
vp9_settings.interLayerPred = webrtc::InterLayerPredMode::kOnKeyPic;
} }
// VP9 denoising is disabled by default. // VP9 denoising is disabled by default.