[Ffmpeg-devel] unknown format of mpeg4 stream

Baptiste Coudurier baptiste.coudurier
Tue Oct 3 11:45:02 CEST 2006


thijsvermeir at telenet.be wrote:
> Hello,
> Ffmpeg does not find that my stream is an mpeg 4 stream. 
> mplayer only finds it if the cache option is used.
> How can I make ffmpeg to recognize this stream?
> A captured sample of this stream can be found here:
> http://users.telenet.be/thijsvermeir/dump/mpeg4_dump.mp4
> Thanks,
> Thijs

Hummm, first, file is by misstake recognized as mp3.
[mp3 @ 0x8501060]Could not find codec parameters (Audio: mp1, 160 kb/s)

After, you can still force input format with -f.
For that file, ffmpeg -f m4v -i mpeg4_dump.mp4 will force raw mpeg4 video.

The file is playable with no artefacts it seems, decoder spits errors

Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
SMARTJOG S.A.                                    http://www.smartjog.com
Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
Phone: +33 1 49966312

More information about the ffmpeg-devel mailing list