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Attempting to SVC can fail for two reasons: 1. If codec preferences does not contain a codec that supports SVC, setParameters() rejects, leaving scalabilityMode undefined. 2. If codec preferences does contain a codec that support SVC, setParameters() accepts the scalabilityMode, but if a codec is configured in response to negotiation that does not support SVC, fallback happens. In the 1) path, undefined scalabilityMode results in VP8 L1T1. In the 2) path, SVC fallback results in scalabilityMode being set to L1T2, resulting in VP8 L1T2. Whether we fail late or early resulting in different configurations may not be obvious so its good to test these. Bug: webrtc:14884 Change-Id: Ic5502b90c1628310a7a78ade2ad9fa0d81d91502 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/295872 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Evan Shrubsole <eshr@webrtc.org> Commit-Queue: Henrik Boström <hbos@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39474}
WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.
Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.
The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.
Development
See here for instructions on how to get started developing with the native code.
Authoritative list of directories that contain the native API header files.
More info
- Official web site: http://www.webrtc.org
- Master source code repo: https://webrtc.googlesource.com/src
- Samples and reference apps: https://github.com/webrtc
- Mailing list: http://groups.google.com/group/discuss-webrtc
- Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- Coding style guide
- Code of conduct
- Reporting bugs
- Documentation