[FFmpeg-user] ffmpeg doesn't see audio stream

Ivan Gorin ivangorin21 at gmail.com
Sat Oct 17 05:03:40 EEST 2020


That worked, thank you. Also I was able to "fix" it by cutting off several
bytes using dd (like Micael Silva also suggested), although I'm not sure if
that keeps the file structure intact, so your solution is better.

On Sat, Oct 17, 2020 at 4:49 AM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> Am Sa., 17. Okt. 2020 um 03:13 Uhr schrieb Ivan Gorin <
> ivangorin21 at gmail.com>:
> >
> > Here is the link to a sample, it's the very beginning of the video,
> where I
> > think the problem is. VLC says there is an indexing problem but it plays
> > fine.
> >
> > https://drive.google.com/file/d/1hznkCKQWWbmxSSBQxwyKY-G3Kje_D9nh
>
> I know this does not scale very well but DV's are special:
> $ ffmpeg -ss 1 -i input -vcodec copy -f rawvideo out
>
> out is now a dv file with audio.
>
> As explained by Micael, the issue is that the beginning of the file
> contains
> broken frames.
>
> ffplay allows you to press "a" while playing to enable the newly-found
> audio stream with your original sample.
>
> Carl Eugen
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