I've downloaded a WMV stream via MPlayer. It seems that the file actually contains multiple video/audio streams with different bitrates. I'd like to get rid of some of them.
If I run ffmpeg on it, this is the result:
$ ffmpeg -i stream.wmv
Seems that stream 3 comes from film source: 1000.00 (1000/1) -> 25.00 (25/1)
Seems that stream 4 comes from film source: 1000.00 (1000/1) -> 25.00 (25/1)
Seems that stream 5 comes from film source: 1000.00 (1000/1) -> 25.00 (25/1)
Input #0, asf, from 'stream.wmv':
Duration: 01:01:58.5, start: 5.000000, bitrate: 1644 kb/s
Stream #0.0: Audio: wmav2, 44100 Hz, stereo, 80 kb/s
Stream #0.1: Audio: wmav2, 44100 Hz, stereo, 64 kb/s
Stream #0.2: Audio: wmav2, 44100 Hz, stereo, 31 kb/s
Stream #0.3, 25.00 fps®: Video: WMV3 / 0x33564D57, 512x288
Stream #0.4, 25.00 fps®: Video: WMV3 / 0x33564D57, 512x288
Stream #0.5, 25.00 fps®: Video: WMV3 / 0x33564D57, 512x288
Must supply at least one output file
In VLC I can chose between the different streams (which VLC calls 'tracks') when playing back the file, but I cannot seem to remove some of them from the file or extract them. I've read a bit of documentation on both ffmpeg, mencode and mplayer without luck.