I was wondering if any of the video standards support embedding a timecode when capturing/recording.
I have a requirement to record and playback multiple video streams, whilst keeping them in sync.
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I was wondering if any of the video standards support embedding a timecode when capturing/recording.
I have a requirement to record and playback multiple video streams, whilst keeping them in sync.
You don’t really need an embedded timecode in the video for this, the video header has enough fields to help you figure this out.
Each frame is “timestamped” by this:
Given you have a relative starting point (which can be stored in the video header per track) you can keep track of when each frame should be displayed.
Durations are in the stts atom and you can put the relative starting point in the media header atom (notice the creation/modification time areas)