[FFmpeg-user] trouble with -vcodec copy
Arlo Leach
lists at arlomedia.com
Fri Nov 18 22:20:12 CET 2011
> Yes, but I suspect you don't see the "blank video" with MPlayer (or ffplay), but
> QuickTime does not want to display the initial non-key frames that are copied
> with the first of your command lines
Hmm, that could be. I don't have any media player on my Mac that doesn't seem to be QuickTime-based. If anyone else is curious about this, you can try playing this file in a different player and see if the video starts right away or after about 8 seconds:
http://www.arlomedia.com/projects/ffmpeg/band_sample.mp4
> I don't think -g has any effect with -vcodec copy. (But if you mean you first
> encode the sample and cut it later, than more keyframes of course increase the
> seeking accuracy.)
Yes, that's what I meant -- thanks for confirming.
Cheers,
-Arlo
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Arlo Leach
http://arlomedia.com
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