[FFmpeg-user] -vcodec copy problems: Why does FFMPEG hate me?

Carl Eugen Hoyos cehoyos at ag.or.at
Thu Nov 8 23:23:58 CET 2012


Phil McCarty <phil <at> tracktrack.it> writes:

> Oh, sure here's a small sample, rather than deluge 
> you with the giant file. (and thank you) 
> 
> http://philmccarty.com/sample.mov

(Given that this file is very, very 
different from the one you used in 
your original post, it may have been 
better to "deluge" me.)

Works fine here with current git head:
$ md5sum sample.mov
e7af178470ed7a07ddf9f346dc1a41f4  sample.mov
$ ffmpeg -i sample.mov -vcodec copy -an out.mov
ffmpeg version N-46528-g5ff43ec Copyright (c) 2000-2012 the FFmpeg developers
  built on Nov  8 2012 19:27:34 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --disable-indev=jack
  libavutil      52.  5.100 / 52.  5.100
  libavcodec     54. 71.100 / 54. 71.100
  libavformat    54. 36.100 / 54. 36.100
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 21.106 /  3. 21.106
  libswscale      2.  1.102 /  2.  1.102
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sample.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    creation_time   : 1970-01-01 00:00:00
    encoder         : Lavf52.78.5
  Duration: 00:00:15.02, start: 0.000000, bitrate: 389 kb/s
    Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D),
yuv420p, 854x364 [SAR 1:1 DAR 61:26], 326 kb/s, 23.98 fps, 23.98 tbr, 2997 tbn,
2997 tbc
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : DataHandler
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 
59 kb/s
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : DataHandler
Output #0, mov, to 'out.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf54.36.100
    Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 854x364 [SAR
1:1 DAR 61:26], q=2-31, 326 kb/s, 23.98 fps, 11988 tbn, 2997 tbc
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : DataHandler
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
frame=  358 fps=0.0 q=-1.0 Lsize=     597kB time=00:00:14.89 
bitrate= 328.5kbits/s
video:595kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.390422%

out.mov plays fine.

Please do not top-post here, Carl Eugen

PS: Never try to compress compressed files, that 
does not help with downloading time, but requires an 
additional step before testing is possible.



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