Re: [webrtc-stats] Stats to keep track of sync between audio and video

It sounds like there are three relevant timestamps (I'm going to use 
video as this example, but understand that we want the applicable 
video stats too).

1. lastPlayedFrameCaptureTimestamp - When the frame that was last 
played out was captured in ntp. 
2. lastPlayedFramePlayoutTimestamp - When the last frame was played 
out in ntp.
3. hypotheticalCaptureTimeCurrentFramePlayoutTimestamp - The ntp time 
of when what we would playout was captured, if we could play something
 out.

hypotheticalVideo - hypotheticalAudio = AV sync
lastPlayedFrameCaptureTimestamp - lastPlayedFramePlayoutTimestamp = 
E2E delay.

Am I understanding correctly?

-- 
GitHub Notification of comment by icydragons
Please view or discuss this issue at 
https://github.com/w3c/webrtc-stats/issues/158#issuecomment-278533326 
using your GitHub account

Received on Thursday, 9 February 2017 03:01:13 UTC