Aaron Simmons <[email protected]> added the comment:
Also, trying to preserve the codec (rather than auto-converting to mp3) fails:
asimmons-mac:ffmpeg-trunk asimmons$ ./ffmpeg -i
~/Documents/audio-only-nellymoser.flv -vn -y -acodec nellymoser
~/Desktop/sounds/test.swf
FFmpeg version SVN-r19521, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --enable-libspeex --enable-libmp3lame
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.32. 0 / 52.32. 0
libavformat 52.36. 0 / 52.36. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
built on Jul 27 2009 12:48:52, gcc: 4.0.1 (Apple Inc. build 5493)
[flv @ 0x1002600]Could not find codec parameters (Video: 0x0000)
Input #0, flv, from '/Users/asimmons/Documents/audio-only-nellymoser.flv':
Duration: 00:00:04.96, start: 0.000000, bitrate: N/A
Stream #0.0: Video: 0x0000, 1k tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: nellymoser, 22050 Hz, 1 channels, s16
[swf @ 0x1004800]SWF muxer only supports MP3
Output #0, swf, to '/Users/asimmons/Desktop/sounds/test.swf':
Stream #0.0: Audio: nellymoser, 22050 Hz, 1 channels, s16, 64 kb/s
Stream mapping:
Stream #0.1 -> #0.0
Could not write header for output file #0 (incorrect codec parameters ?)
========================================
asimmons-mac:ffmpeg-trunk asimmons$ ./ffmpeg -i
~/Documents/audio-only-speex.flv -vn -y -acodec libspeex
~/Desktop/sounds/test.swf
FFmpeg version SVN-r19521, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --enable-libspeex --enable-libmp3lame
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.32. 0 / 52.32. 0
libavformat 52.36. 0 / 52.36. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
built on Jul 27 2009 12:48:52, gcc: 4.0.1 (Apple Inc. build 5493)
[flv @ 0x1002600]Could not find codec parameters (Video: 0x0000)
Input #0, flv, from '/Users/asimmons/Documents/audio-only-speex.flv':
Duration: 00:00:03.05, start: 0.000000, bitrate: N/A
Stream #0.0: Video: 0x0000, 1k tbr, 1k tbn, 1k tbc
Stream #0.1: Audio: libspeex, 16000 Hz, 1 channels, s16
Unknown encoder 'libspeex'
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FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/roundup/ffmpeg/issue1293>
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