WebRTC 118 Release Notes

[Harald Alvestrand]

WebRTC M118 is going to be released as part of Chrome M118, currently planned for release on October 10th 2023.

We had only only one PSA for M118

• PSA: keyFramesDecoded stats will be spec-compliant in M118

The legacy callbased-based getStats is not available in M118 and only remains active for a shrinking percentage of M117 users:

• PSA: Callback-based getStats() is removed in M117

The following issues were marked as fixed or verified and had at least one commit in M118 (build, test and trivial code changes are not included):

Issue	Summary	Component
webrtc:15442	Fix inconsistent logic to check if temporal layer is supported in encoder_stream_factory	Video
webrtc:15155	Multiple StapA per frame	Video
chromium:1466809	VP8 scaleResolutionDownBy will cause continuous adaptation	Blink>WebRTC>Video
webrtc:14728	keyFramesDecoded doesn't align with w3c webrtc-stats standard	Stats
webrtc:15420	Fix playout delay logging issue	Video
chromium:1478154	Null deref in webrtc's TCPConnection class	Blink>WebRTC
chromium:1464853	SetMetadata needs to be implemented in WebRTC for Incoming encoded video frames	Blink>WebRTC >PeerConnection
chromium:1464860	Support receiving cloned encoded audio frames	Blink>WebRTC >PeerConnection
chromium:1475195	h265_bitstream_parser_fuzzer: Integer-overflow in webrtc::H265BitstreamParser::ParseNonParameterSetNalu	Blink>WebRTC>Video
chromium:1474155	h265_bitstream_parser_fuzzer: Stack-overflow in webrtc::H265BitstreamParser::ParseNonParameterSetNalu	Blink>WebRTC>Video
webrtc:15438	STL_VERIFY triggered when increasing a std::vector iterator	Audio
webrtc:15410	Remove deprecated versions of SendRtp and SendRtcp	Internals
chromium:1464857	Create a single feature controling exposing setMetadata on existing fields for both Audio and Video encoded frames	Blink>WebRTC >PeerConnection
chromium:1464855	RTCEncodedVideoFrame::setMetadata() should work without the additionalmetadata Feature	Blink>WebRTC >PeerConnection
chromium:1476680	Use IDL BinaryType for RTCDataChannel.binaryType	Blink>WebRTC
chromium:1464860	Support receiving cloned encoded audio frames	Blink>WebRTC >PeerConnection
chromium:1487223	RTCEncodedVideoFrameMetadata::rtpTimestamp is not set the the RTCEncodedFrameSetMetadata OT	Blink>WebRTC >PeerConnection
chromium:1471009	Detect if camera is being used by another application on windows	Internals>Media >CameraCapture
chromium:1456628	Remove RtpHeader from TransformableAudioFrameInterface	Blink>WebRTC >PeerConnection

For the full list of commits please refer to the git log between this branch and the previous branch. See here for a description of what the release notes contain.

We strongly recommend WebRTC developers to fully test their services in Chrome Beta to ensure stability for end-users.

 

The Chrome release schedule can be found here.

These release notes were prepared by Philipp Hancke.

[Carl Meyer]

Thank you!