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POFFMPEG - zero file size when sound enabled
 

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  1. POFFMPEG - zero file size when sound enabled
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    <p>I'm having a few problems converting video files from the command line using FFMPEG. I'm using a CentOS server, but unfortunately I don't have shell access.</p> <p>When I suppress sound using the following command, everything works perfectly (except of course, there's no sound!)</p> <pre><code>ffmpeg -i $infile -an test.flv </code></pre> <p>However, when I try to enable sound in <em>any</em> way at all, the file being outputted has a file size of zero kb.</p> <p>FFMPEG is compiled with support for libmp3lame and libfaac, and the necessary codecs are installed. Here is the configuration of FFMPEG on the server:</p> <blockquote> <p>FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al. configuration: --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-libogg --enable-libtheora --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-pthreads --enable-gpl --disable-strip</p> </blockquote> <p>Here is a very small sample of some of the commands I've tried that result in a 0Kb file size:</p> <pre><code>ffmpeg -i $infile test.flv ffmpeg -i $infile -vcodec copy -acodec ac3 test.flv ffmpeg -vcodec copy -acodec copy -i $infile -vcodec copy -acodec mp3 test.flv ffmpeg -vcodec copy -acodec copy -i $infile -vcodec copy -acodec copy $outfile ffmpeg -vcodec copy -acodec copy -i $infile -vcodec copy -acodec aac $outfile </code></pre> <p>If anyone could provide any hints on what's going on here, I'd really appreciate it!</p> <p><strong>EDIT</strong> - here is the result when I redirect stderr to a file</p> <p>FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al. configuration: --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man --incdir=/usr/include/ffmpeg --enable-libmp3lame --enable-libogg --enable-libvorbis --enable-libogg --enable-libtheora --enable-libfaad --enable-libfaac --enable-libgsm --enable-xvid --enable-x264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-pthreads --enable-gpl --disable-strip libavutil version: 49.4.0 libavcodec version: 51.40.4 libavformat version: 51.12.1 built on Jun 4 2007 11:02:12, gcc: 4.1.1 20070105 (Red Hat 4.1.1-52) </p> <p>Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/path/to/7b4e37e703ce0a104f027cb9125b1a19.mp4': Duration: 00:00:32.4, start: 0.000000, bitrate: 122 kb/s Stream #0.0(jpn): Video: h263, yuv420p, 176x144, 29.97 fps(r) Stream #0.1(jpn): Audio: samr / 0x726D6173, 8000 Hz, mono </p> <p>Output #0, flv, to '/path/to/test.flv': Stream #0.0: Video: flv, yuv420p, 176x144, q=2-31, 200 kb/s, 29.97 fps(c) Stream #0.1: Audio: mp3, 8000 Hz, mono, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 </p> <p>Unsupported codec (id=73728) for input stream #0.1</p>
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