[FFmpeg-devel] [RFC] Seeking API
Thu Jan 22 18:24:59 CET 2009
> * seeking in relation to a single specific stream makes little sense,
> seeking should happen relative to the set of streams that is
> to the user (= the ones not disabled by AVStream.discard)
I agree to disagree.
For once, the BeOS API does allow seeking individual tracks, so does
I believe the rationale is that is that it allows processing of
separate streams separately, even if the result is to render them at
the same time.
For example, a player might want to buffer video or audio packets, or
pre-render them, and in the end it's the player that handles
Specifically it might want to seek at keyframes on each tracks, and
start playing the most in advance track, and unpause the other ones as
presentation times match.
It might also be wanted by a video editing app might want to extract
specific frames to display them and audio data at specific point to
show them, without having to close/reopen the file each time or care if
the others tracks has been seeked too.
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