[FFmpeg-devel] [bug/patch] MPEG-TS muxer: PCR not in sync with PTS/DTS

Mike Scheutzow scheutzow
Wed Feb 17 21:53:39 CET 2010

On Mon, Feb 08, 2010 at 12:52:32PM -0500, Mike Scheutzow wrote:
> One solution would be to add a new feature to the mpeg-ts mux so that the 
> initial PCR can be specified by the caller (using metadata?) or maybe 
> calculated from the first DTS received.
> I'll work on a patch if Baptiste indicates he is OK with the concept.

Michael Niedermayer wrote:
> iam not baptiste but i think
> 1. we need VBR support
> 2. its the muxers job to figure all timestamps out from the DTS/PTS
>    do proper interleaving and all that in a fully system/video/audio
>    compliant way (as long as the codec streams are compliant)
> 3. only add minimal overhead
> our PS muxer can do all that,what is so different on TS that the existing
> code from our PS muxer cannot just be used?


I certainly agree with (2) and (3). I was hoping we'd hear from 
Baptiste, but it's been 10 days now, without comment from him on any of 
these topics.

I am interested in helping improve the mpegts muxer, but it seems 
pointless for me to contribute patches when the maintainer won't respond 
or show any interest.

Mike Scheutzow

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