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

Benjamin Larsson banan
Wed Feb 17 22:20:29 CET 2010

Mike Scheutzow wrote:
> 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?
> Michael,
> 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

Baptiste is missing in action, most likely on vacation.

Benjamin Larsson

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