[MPlayer-users] muxing vorbis audio with mencoder?

[Alban Bedel]

Hi D Richard Felker III,

on Sat, 20 Jul 2002 15:38:11 -0400 you wrote:

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Sat, Jul 20, 2002 at 02:37:28AM -0400, D Richard Felker III wrote:
> > Anyone had success muxing vorbis audio into an avi file with mencoder?
> > I'm using the following command line:
> > 
> > mencoder foo.avi -audiofile bar.ogg -ovc copy -oac copy -noskip -mc 0
> > 
> > Without -noskip, I get lots of (bogus) skipped frames, which corrupts
> > the video since many I/P frames get lost. With or without that option,
> > the audio doesn't work in the output file. Mplayer gives the following
> > output:
> > 
> > AVI OGG : Initial audio header is too small !!!!!
> > [V] filefmt:3  fourcc:0x33564944  size:352x240  fps:23.98  ftime:=0.0417
> > get_path('sub/') -> '/home/dalias/.mplayer/sub/'
> > Detected audio codec: [vorbis] afm:10 (OggVorbis Audio Decoder)
> > Initializing audio codec...
> > Opening audio decoder: [libvorbis] Ogg/Vorbis audio decoder
> > dec_audio: Allocating 4096 + 65536 = 69632 bytes for output buffer
> > OggVorbis: initial (identification) header broken!
> > ADecoder init failed :(
> > Couldn't initialize audio codec! -> nosound
> 
> I think I found the problem. It appears that the ogg demuxer munches
> the first packet (with all the header info) when it opens the stream.
> Thus, -oac copy starts copying with the second packet, which is bogus.
> Any suggestions on how to fix this?
> 

I'm working on it right now. I will also maxe a little cleanup with ogg in avi.
	Albeu