[MPlayer-users] SVN-r32479: pcm:file=fifo does not work

Oliver Seitz info at vtnd.de
Sat Oct 30 10:23:02 CEST 2010


> Why in the world does mplayer (ffmpeg) care if audio.wav is a fifo?

Because the pcm data in wav files is organized in chunks. At the 
beginning of each chunk, the size of that chunk is stored.

So, mplayer writes audio data, and when finished, seeks back in the file 
to insert the correct chunk size. This is obviously impossible in a fifo.

For raw pcm, it could be possible to stream it through a fifo, but that 
depends on the implementation, I think.

Greets,
Kiste


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