[Ffmpeg-devel] AC3 support in asf library

Jonathon Elwood jelwood
Sun Oct 22 03:00:44 CEST 2006

I'm having an issue with ffmpeg detecting the AC3 stream in the asf wrapper.
Below is the output.  Stream #0.1 is really an AC3 stream.


\ffmpeg>ffmpeg -benchmark -y -i "\\Lab\desktop\Harry Potter and the Chamber
of Secrets_WPTA-DT_21_10_2006_20_43_24.dvr-ms"

-vcodec xvid -qscale 4 -acodec mp3 -ac 2 -ar 48000 -ab 128 -f avi "test.avi"

FFmpeg version SVN-r6753, Copyright (c) 2000-2006 Fabrice Bellard, et al.

  configuration:  --enable-memalign-hack --enable-mp3lame --enable-xvid

-a52 --enable-gpl --disable-ffserver --disable-ffplay

  libavutil version: 49.0.1

  libavcodec version: 51.20.0

  libavformat version: 50.6.0

  built on Oct 21 2006 19:58:28, gcc: 3.2.3 (mingw special 20030504-1)

Input #0, asf, from '\\Lab\desktop\Harry Potter and the Chamber of


  Duration: 00:00:30.7, start: 0.000000, bitrate: 14878 kb/s

  Stream #0.0: Invalid Codec type -1

  Stream #0.1: Audio: 0x0000, 48000 Hz, stereo

  Stream #0.2: Video: mpeg2video, yuv420p, 1280x720, 13430 kb/s, 59.94

Output #0, avi, to 'test.avi':

  Stream #0.0: Video: xvid, yuv420p, 1280x720, q=2-31, 200 kb/s, 59.94

  Stream #0.1: Audio: mp3, 48000 Hz, stereo, 128 kb/s

Stream mapping:

  Stream #0.2 -> #0.0

  Stream #0.1 -> #0.1

Unsupported codec (id=0) for input stream #0.1


Thank you for any help you can provide.  If there is any information I can
give to help solve this problem, please let me know.


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