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  1. I'm trying to convert ATSC/A-52 Dobly AC3 to MP2 using ffmpeggui. I click convert and get this in the status:

    ffmpeg version 0.4.9-pre1, build 4723, Copyright (c) 2000-2004 Fabrice Bellard
    built on Oct 20 2004 18:37:34, gcc: 3.2.3 (mingw special 20030504-1)
    Input #0, ac3, from 'D:\DS\cl.ac3':
    Duration: N/A, bitrate: N/A
    Stream #0.0: Audio: 0x0000
    Output #0, mp2, to 'D:\DS\cl.mp2':
    Stream #0.0: Audio: mp2, 48000 Hz, stereo, 384 kb/s
    Stream mapping:
    Stream #0.0 -> #0.0
    Unsupported codec (id=11) for input stream #0.0

    I've installed the codec from https://www.videohelp.com/tools?tool=AC3_ACM_Decompressor but this doesn't fix anything. I can't use BeSweet either because everytime I try to transcode it always transcodes to 128Kbps. Any ideas?

    Many thanks.
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date
    Aug 2000
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    Sweden
    Search Comp PM
    try belight instead.
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  3. It still does the same. Transcodes as...

    [00:00:00:000] +-------- LAME -------
    [00:00:00:000] | Bitrate method : CBR
    [00:00:00:000] | MP3 bitrate : 128
    [00:00:00:000] | Channels Mode : Joint Stereo
    [00:00:00:000] | Error Protection: No
    [00:00:00:000] +---------------------
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  4. Member
    Join Date
    Dec 2004
    Location
    Australia
    Search Comp PM
    Neither ffmpeg or BeSweet use installed codecs. I really wouldn't recommend ffmpeg for mp2 conversion though as the mp2 encoder is not the best quality.

    You could try the last ffmpeg compile that I did though. Should accept AC3 as input just fine: http://www.aziendeassociate.it/cd//ffmpeg/ffmpeg.2005.01.11.7z
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