encodedChunk Metadata Registry

[aboba]

We now have a proposal to add some timing information to the RTCEncodedVideoFrameMetadata: w3c/webrtc-encoded-transform#173

Would it make sense to define a metadata registry for encodedChunk and add similar info there?

[aboba]

To date, no attributes have been approved in the VideoFrame registry, and it is not clear that the administrative burden of a VideoFrame or encodedChunk registry is worth the benefit.

As long as WebCodecs behavior is not changed by addition of encodedChunk (or VideoFrame) metadata, the benefit of a registry comes from the avoidance of conflicts. However, this goal can be accomplished without a registry, through the issuance of unique identifiers.