Hi Tony, Thanks for this intent, could you please clarify why this new field is needed and important?Without an explainer is hard to follow this change.
Cheers, Nicola On Tuesday, May 2, 2023 at 2:29:22 PM UTC Tony Herre wrote: > Contact emails > > [email protected], [email protected] > > Spec > https://w3c.github.io/webrtc-encoded-transform/#RTCEncodedVideoFrameMetadata > particularly > PR#173 <https://github.com/w3c/webrtc-encoded-transform/pull/173>. > > > Summary > > Add a 'timestamp' field to RTCEncodedVideoFrameMetadata containing the > presentation timestamp of the associated encoded video frame. > > Is this feature supported on all six Blink platforms (Windows, Mac, Linux, > Chrome OS, Android, and Android WebView)? > > Yes > > Risks > > Interoperability and Compatibility > > Positive response from all members at W3C WebRTC WG April 2023 Interim, PR > landed with no open issues. > > Ergonomics > > Added specifically to align with the timestamp field on the WebCodecs > <https://www.w3.org/TR/webcodecs/#encodedvideochunk-interface> > EncodedVideoChunk > <https://www.w3.org/TR/webcodecs/#encodedvideochunk-interface>, and allow > matching video frames with the timestamp in the WebCodecs VideoFrame > <https://www.w3.org/TR/webcodecs/#videoframe-interface> object. > > Will also provide the same timestamp already exposed in > requestVideoFrameCallback's 'mediaTime'. > > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md> > ? > > Tested internally by RTCEncodedVideoFrame-capture-timestamp-id.html > <https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/web_tests/fast/peerconnection/RTCEncodedVideoFrame-capture-timestamp-id.html>, > > upstreaming to WPT tracked in crbug.com/1441888. > > > > Entry on the feature dashboard > > None, small delta to launched API. > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/cfa25949-7d3d-4dfd-920d-e89eab6933d5n%40chromium.org.
