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Splitting a video container, like AVI into its individual streams and store the streams in individual files.
The practical reason is to extract an audio or subtitle track from a video. The process of adding those streams again is called muxing, removing or adding streams in-place is called remuxing.
A: I really want that audio track from this video file
B: Demux the video and just take it.
by October 29, 2015
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