[MPlayer-users] Reading raw audio/video streams

[D Richard Felker III]

On Wed, Aug 13, 2003 at 11:10:38AM -0500, Geoffrey Hausheer wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> I have seperate raw audio and video streams which I'd like to encode/play
> using mencoder/mplayer.
> 
> Since the streams aren't muxed together, I want to pass the data as two
> fifos to mplayer, but mplayer doesn't like fifos, so this doesn't work.
> 
> My current solution is to write the raw video to a fifo, and the raw audo
> to a file.  I can then start mplayer using:
> cat vidout.fifo | ./mencoder -audiofile audout.file -audio-demuxer 20
> -rawaudio rate=32000 -rawvideo on:w=640:h=480 -o out.avi -ovc lavc -oac
> mp3lame -
> (this only works in CVS, mplayer <=0.91 doesn't support -audiofile with
> -rawvideo)
> 
> And this works, but it generates an intermediate audio file which is very
> large, and I am not sure what happens in the case where mplayer reads
> faster than the data is generated (in theory this would just stall the
> player, but I'm not really sure)
> 
> Since I am generating the streams, I could mux the audio and video
> together, but looking at demuxer.h, mplayer doesn't seem to support any
> demuxer that works with raw video and audio (there are seperate RAWVIDEO
> and RAWAUDIO demuxers, but nothing that will handle both in one stream)
> 
> Does anyone have a suggestion as to how I can make this work without
> generating intermediate files (either using fifos or a muxed stream to
> stdout?).  I don't want to deal with the complexity of adding a
> container...that is what I'm using mencoder for in the first place.

Uhh, why not just use -audiofile audout.fifo instead of a file?!?!

Rich