[theora] Multi-audio in OGV?

[Benjamin Henrion]

Hi,

I am trying to reencode a video from the European Parliament (WMV)
which has multiple audio tracks for the different languages:

================================================================================================
Debian-50-lenny-32-minimal:/var/www/tmp# ffmpeg2theora --audiostream 0
VODChapter_20100323_09030000_12350000_Ch04.wmv
[wmv3 @ 0xb7e21b50]Extra data: 8 bits left, value: 0
[wmv3 @ 0xb7e21b50]Extra data: 8 bits left, value: 0
[wmv3 @ 0xb7e21b50]Extra data: 8 bits left, value: 0
Input #0, asf, from 'VODChapter_20100323_09030000_12350000_Ch04.wmv':
  Duration: 03:31:55.2, start: 5.000000, bitrate: 1114 kb/s
    Stream #0.0: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.1: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.2: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.3: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.4: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.5: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.6: Video: wmv3, yuv420p, 512x288 [PAR 0:1 DAR 0:1], 512
kb/s, 25.00 tb(r)
    Stream #0.7: Video: wmv3, yuv420p, 512x288 [PAR 0:1 DAR 0:1], 256
kb/s, 25.00 tb(r)
    Stream #0.8: Audio: wmav2, 44100 Hz, mono, 32 kb/s
    Stream #0.9: Video: wmv3, yuv420p, 256x144 [PAR 0:1 DAR 0:1], 90
kb/s, 25.00 tb(r)
  Using stream #0.0 as audio input
[wmv3 @ 0xb7e21b50]Extra data: 8 bits left, value: 0
  Resize: 512x288
      0:54:34.71 audio: 47kbps video: 470kbps, time remaining: 00:58:08

================================================================================================

I was wondering if OGV supports multi-audio tracks, howto create such
files, and if the audio track choice is implemented in Chrome/Firefox.

Best,

-- 
Benjamin Henrion <bhenrion at ffii.org>
FFII Brussels - +32-484-566109 - +32-2-4148403
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