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Activate/deactivate VP9 spatial layers.

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* Stop encoding spatial layers S(n >= N) if application deactivates
spatial layer N by setting RTCRtpEncodingParameters.active = false.

* Move calculation of padding bitrate to SvcRateAllocator class.

* Pad up to minimum required bitrate of base layer if ALR probing is
enabled.

Bug: webrtc:9350
Change-Id: I398284c943d43348def535c83263fc234c9767fa
Reviewed-on: https://webrtc-review.googlesource.com/c/113240
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25945}
This commit is contained in:
Sergey Silkin
2018-12-10 09:28:53 +01:00
committed by Commit Bot
parent b47ccc38e7
commit 8b9b5f98db
12 changed files with 310 additions and 100 deletions
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8
modules/video_coding/video_codec_initializer.cc
View File

@ -192,6 +192,14 @@ VideoCodec VideoCodecInitializer::VideoEncoderConfigToVideoCodec(
spatial_layers.back().minBitrate = video_codec.minBitrate;
spatial_layers.back().maxBitrate = video_codec.maxBitrate;
}
for (size_t spatial_idx = 0;
spatial_idx < config.simulcast_layers.size() &&
spatial_idx < spatial_layers.size();
++spatial_idx) {
spatial_layers[spatial_layers.size() - spatial_idx - 1].active =
config.simulcast_layers[spatial_idx].active;
}
}
RTC_DCHECK(!spatial_layers.empty());