Change default audio track in .avi without remuxing

audioavivideo

I have some .avi files that have multiple audio tracks and the default audio track is in a foreign language. I'm not seeking to remove the other track, but merely change some default flag within it so that, when I open it, it plays track 2, or whatever.

I dont want to create any new files, I shouldn't have to do anything like that, and with .mkvs this was really simple.

So I'm wondering if it is also possible to _{[reasonably simply]} modify the contents of an .avi

Best Answer

I used AVIdemux. It does it in seconds so it's not fully 'demuxing', only changing the preferred audio track (or simply deleting the one you don't want) and making the internal parts of the AVI container file mesh properly. It's a free program - http://sourceforge.net/projects/avidemux/?source=dlp

note: The program obviously has demuxing capabilities.

stream selection

Default stream selection behavior is to select one stream type per input. For example, as in your input, if it contains two audio streams, then only the stream with the most number of channels will be selected.

You can tell ffmpeg to include all streams with the -map option.

Because the -map option begins counting at 0, the 0 in this example refers to the first input (input.avi: your only input in this case). If you had additional inputs then -map 1 would refer to the second input.

set language metadata

To set the language of the first and second audio streams use the -metadata option with stream specifiers:

ffmpeg -i input.avi -map 0 -codec copy -metadata:s:a:0 language=eng -metadata:s:a:1 language=rus output.avi

See the documentation for more info.

Best Answer

Related Solutions

How do I remove one audio stream from an AVI file

Ffmpeg edit avi metadata and audio track naming

stream selection

set language metadata

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