Re: [mediacapture-transform] What is the impact of timestamp for video frames enqueued in VideoTrackGenerator? (#96)

I did an experiment on Chrome, capturing a track from a camera, encoding it in WebCodecs and serializing the EncodedVideoChunk and timestamp on the wire using WebTransport.  On the receiver the EncodedVideoChunk is decoded, timestamp is set, and VSTG/MSTG is used to generate a track with RVFC used to retrieve metrics such as `captureTimestamp`.  

RVFC spec says that `captureTimestamp` is only set on locally captured tracks but it was present on the remote track. This leads me to believe that `timestamp` is not actually the "presentation timestamp" as stated in WebCodecs, but rather a capture timestamp. 

-- 
GitHub Notification of comment by aboba
Please view or discuss this issue at https://github.com/w3c/mediacapture-transform/issues/96#issuecomment-2356284703 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Tuesday, 17 September 2024 15:40:20 UTC