[MPlayer-users] Re: Multiple audio streams

Jan Engelhardt jengelh at linux01.gwdg.de
Wed Sep 11 11:37:02 CEST 2002


>> I heard that an AVI file can have 1 video stream and up to 99 audio
>> streams.
>> How do I pass WAVe files to mencoder, I donot think adding
>> multiple -audiofile
>> will work, will it?
>
>Also, as most Mediplayers cant handle OpenDML AVI correctly ( including WMP
>6.4 ) the files you create will be playable correctly in less than 5% of the
>PCs on this world, unless you distribute a few good players ( one for each
>OS, like mplayer for Linux, BSplayer or TCMP for Windows, etc. ) with your
>files that allow switching audio streams. I dont know about mencoder, but
>Virtualdub, the most used Windows tools for AVI creation, doesnt even give
>you the option to add more than one audio stream, as its closely following
>AVI specs. Only modifications like nandub, being based on Vdub, allow for
>that, and only for 2 streams.

AFAIKnew, I thought Windows directshow codecs only play the first audio stream.

>The better idea IMHO is to drop AVI as container for multiple audio streams,
>switch to .ogm as container ( using Vorbis for audio of course and Moritz
.ogg. Yeah. but "Tarkin", ogg video is in alpha stage, possibly even before
that.

>Bunkus' app for .ogm creation ) and to distribute only the Windows OggDS
>filters with the files for windows users ( even old WMP 6.4 can switch audio
>streams of .ogm with this filter ). mplayer can play them correctly in any
>case on Linux, with up to 32 billion different audio streams if ever
>necessary   :-) .




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