[Asterisk-video] mp4save(): different audio and video lengths

[Sven Brandau]

Dear All,

is anyone working on this issue? Or have a solution?

Regards,
Sven


Jose M. Recio wrote:
> Hi, guys,
> 
> I don't know if that's a known fact, I have discovered that, at least in my
> systems, mp4save() creates mp4files with different lengths in audio and
> video tracks (see examples at the end). This means that the audio track in
> those files is almost useless, as it is totally out of synch with the video
> ...
> 
> I think this has something to do with the framesPerSample property in
> mpeg4ip package, but after messing a bit with the MP4 library I have
> surrended without fixing it. Have somebody tested or fixed this before?
> 
> Can you check by yourself if this behaviour also happens in your system?.
> 
> Thanks,
> JM
> 
> 
> ~$  mp4info /tmp/*.mp4
> mp4info version 1.5.0.1
> /tmp/save.clock.1.mp4:
> Track   Type    Info
> 1       audio   AMR, 6.780 secs, 12 kbps, 8000 Hz
> 2       hint    Payload AMR for track 1
> 3       video   H.263, 9.171 secs, 47 kbps, 176x144 @ 8.614110 fps
> 4       hint    Payload H263-1998 for track 3
> /tmp/save.clock.2.mp4:
> Track   Type    Info
> 1       audio   AMR, 52.460 secs, 12 kbps, 8000 Hz
> 2       hint    Payload AMR for track 1
> 3       video   H.263, 61.413 secs, 45 kbps, 176x144 @ 9.069741 fps
> 4       hint    Payload H263-1998 for track 3
> /tmp/save.clock.3.mp4:
> Track   Type    Info
> 1       audio   AMR, 2.900 secs, 10 kbps, 8000 Hz
> 2       hint    Payload AMR for track 1
> 3       video   H.263, 6.649 secs, 49 kbps, 176x144 @ 8.572718 fps
> 4       hint    Payload H263-1998 for track 3
> ~$  
> 
> 
> 
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