Baptiste Coudurier <baptiste.coudur...@gmail.com> added the comment:

On 12/1/10 9:05 AM, Kevin Vance wrote:
> 
> New submission from Kevin Vance <kva...@kvance.com>:
> 
> I am trying to generate MPEG-4 video that is compatible with the latest 
> QuickTime player.  When I use a low frame rate, the output is playable 
> on MPlayer but green and artifacty on QuickTime.  With the same input 
> but a higher frame rate, QuickTime can play it.  The cutoff seems to be 
> 17 fps; anything lower than that is unplayable.
> 
> 
> 8 FPS video generation:
> 
> ffmpeg -v 9 -loglevel 99 -f image2 -r 8 -i '%08d.png' -vb 800k -f mp4 -
> vcodec mpeg4 'low_fps_mpeg4.mp4'

Hummm wow this is weird, -r 8 doesn't work, can you try -r 9 or -r 7 ?
It seems to work here, so there is something wrong for 8 fps only ?
Something is fishy there.

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FFmpeg issue tracker <iss...@roundup.ffmpeg.org>
<https://roundup.ffmpeg.org/issue2397>
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