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[InsertableStreams] Fix video receiver simulcast.

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Save the frame transformer set on unsignaled receivers, and set the
transformer when the ssrc becomes known.

Pass the receiver's ssrc on registering the transformed frame callback,
to associate separate frame transformer sinks for each receiver.

Bug: chromium:1065838

Bug: chromium:1065838
Change-Id: I2a214bdb6cb9a8012928a03f046f311c344370f8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/173201
Commit-Queue: Marina Ciocea <marinaciocea@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31051}
This commit is contained in:
Marina Ciocea
2020-04-11 12:42:49 +02:00
committed by Commit Bot
parent dc69fd2b80
commit adc4da30f4
8 changed files with 72 additions and 45 deletions
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4
media/engine/webrtc_video_engine.h
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@ -620,6 +620,10 @@ class WebRtcVideoChannel : public VideoMediaChannel,
// connection.
const webrtc::CryptoOptions crypto_options_ RTC_GUARDED_BY(thread_checker_);
// Optional frame transformer set on unsignaled streams.
rtc::scoped_refptr<webrtc::FrameTransformerInterface>
unsignaled_frame_transformer_ RTC_GUARDED_BY(thread_checker_);
// Buffer for unhandled packets.
std::unique_ptr<UnhandledPacketsBuffer> unknown_ssrc_packet_buffer_
RTC_GUARDED_BY(thread_checker_);