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[VP9 SVC] Round spatial layers dimensions to ensure integer scaling factors are used

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Bug: webrtc:11652
Change-Id: Id3642d607f62b72a567d521d9874b8588c2ce429
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176517
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31465}
This commit is contained in:
Ilya Nikolaevskiy
2020-06-05 12:36:32 +02:00
committed by Commit Bot
parent 9766b890a8
commit 09eb6e249d
4 changed files with 50 additions and 0 deletions
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8
modules/video_coding/video_codec_initializer.cc
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@ -219,6 +219,14 @@ VideoCodec VideoCodecInitializer::VideoEncoderConfigToVideoCodec(
video_codec.spatialLayers[i] = spatial_layers[i];
}
// The top spatial layer dimensions may not be equal to the input
// resolution because of the rounding or explicit configuration.
// This difference must be propagated to the stream configuration.
video_codec.width = spatial_layers.back().width;
video_codec.height = spatial_layers.back().height;
video_codec.simulcastStream[0].width = spatial_layers.back().width;
video_codec.simulcastStream[0].height = spatial_layers.back().height;
// Update layering settings.
video_codec.VP9()->numberOfSpatialLayers =
static_cast<unsigned char>(spatial_layers.size());