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  1. Member
    Join Date
    Dec 2004
    Location
    Atlanta, Georgia USA
    Search Comp PM
    Hello All!

    I am having a problem decoding AC3 streams created by MTR rips. Yes, I am a legal owner of the DVD in question. This happens regardless of what the target file is (AAC/MP3/MP2). Anyway, when I try to encode any AC3 stream ripped via MTR in ffmpegX 0.0.9u, I get errors indicating that it could not decode the stream. This was not a problem in previous versions of ffmpegx.

    The really weird part is that ffmpegx 0.0.9u **CAN** decode AC3 streams from HDTV recorded from my EyeTV500.

    So what's going on?

    -STS

  2. Could you post the exact message from the process output?

  3. Member
    Join Date
    Dec 2004
    Location
    Atlanta, Georgia USA
    Search Comp PM
    Major,

    I will over lunch today, I can generate the message very quickly by selecing an audio only conversion.

    -STS

  4. Member
    Join Date
    Dec 2004
    Location
    Atlanta, Georgia USA
    Search Comp PM
    Major,

    Here is the terminal output:

    Encoding started on Tue Dec 6 12:31:52 EST 2005
    ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
    Mac OSX static build for ffmpegX
    configuration: --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264
    built on Dec 1 2005 03:50:24, gcc: 3.3 20030304 (Apple Computer, Inc. build 1666)
    Input #0, mpeg, from '/Volumes/Video/DVD Title 1 (Ch1 - Ch1)/DVD.VOB':
    Duration: 00:04:09.3, start: 12.578500, bitrate: 6067 kb/s
    Stream #0.0[0x1e0], 29.97 fps: Video: mpeg2video, yuv420p, 720x480, 9800 kb/s
    Stream #0.1[0x20]: Subtitle: dvdsub
    Stream #0.2[0x21]: Subtitle: dvdsub
    Stream #0.3[0x22]: Subtitle: dvdsub
    Stream #0.4[0x23]: Subtitle: dvdsub
    Stream #0.5[0x80]: Audio: ac3, 48000 Hz, 5:1, 448 kb/s
    Stream #0.6[0x81]: Audio: ac3, 48000 Hz, stereo, 192 kb/s
    Stream #0.7[0x82]: Audio: ac3, 48000 Hz, stereo, 192 kb/s
    Codec type mismatch for mapping #0.1 -> #0.0


    If this error is related to a poor method of ripping from MTR, please let me know, but I didn't have this problem in the s or t revs of ffmpegX.

    -STS

  5. Member
    Join Date
    Dec 2004
    Location
    Atlanta, Georgia USA
    Search Comp PM
    For comparision, this is the output when the same task is attempted with an EyeTV500 HDTV/AC3 file:

    Encoding started on Tue Dec 6 12:36:06 EST 2005
    ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
    Mac OSX static build for ffmpegX
    configuration: --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264
    built on Dec 1 2005 03:50:24, gcc: 3.3 20030304 (Apple Computer, Inc. build 1666)
    Input #0, mpegts, from '/Volumes/Video/EyeTV Archive/0000000008eb62e1/0000000009436a12.mpg':
    Duration: 00:04:00.7, start: 29853.177344, bitrate: 12442 kb/s
    Stream #0.0[0x31], 59.94 fps: Video: mpeg2video, yuv420p, 1280x720, 38810 kb/s
    Stream #0.1[0x34](eng): Audio: ac3, 48000 Hz, 5:1, 384 kb/s
    Output #0, mp2, to '/Volumes/Video/EyeTV Archive/0000000008eb62e1/0000000009436a12.mpg.ff.mp2':
    Stream #0.0: Audio: mp2, 48000 Hz, stereo, 224 kb/s
    Stream mapping:
    Stream #0.1 -> #0.0 [sync #0.0]
    Press [q] to stop encoding
    size= 6581kB time=240.7 bitrate= 224.0kbits/s

  6. Member
    Join Date
    Dec 2004
    Location
    Atlanta, Georgia USA
    Search Comp PM
    NEVER MIND, I figured it out.

    I have to manually select the audio track on the audio page.

    Thanks anyway!

    -STS




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