[vlc-devel] Bad demuxer chosen and "/demux://URL" option with "libvlc_playlist_add" function is KO

Rafaël Carré funman at videolan.org
Fri May 16 20:34:23 CEST 2008

Le Tue, 13 May 2008 11:28:40 +0200 (CEST),
"ac2s.club" <ac2s.club at wanadoo.fr> a écrit :

> Hello,
> I wrote an ffmpeg demuxer used to read specific video files
> containing raw MPEG4.
> 1) I linked it with VLC (I am building a video player using libvlc
> (0.8.6c) under Windows XP), and it works fine except sometimes when a
> bad demuxer is chosen (my probe function seems not to be called). It
> seems to happen more frequently with large files (too long time to
> open ?), but it is not really reproducible.

The "ffmpeg" demuxer is used in last resort (it has a low priority) and
other demuxers could be used instead to demux your file.

> 2) So I try to force the choice of my demuxer using the
> "/my_demux://URL" as parameter for the "libvlc_playlist_add"
> function. It does not work : in the vlc-log file, I can see a message
> saying that the "my_demux" demuxer can not be found. That is what I
> do not understand : this same "my_demux" is properly loaded and
> chosen with the classical "probe" process (except sometimes, see
> above). So what !? :-((

Try /ffmpeg

> Any idea (for the first and/or second problem) ?
> Thanks in advance,
> Chris. B.

Rafaël Carré
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