[libav-bugs] [Bug 516] dvdsub muxing/demuxing does not work

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Thu May 16 23:01:16 CEST 2013


https://bugzilla.libav.org/show_bug.cgi?id=516

lu_zero at gentoo.org <lu_zero at gentoo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lu_zero at gentoo.org
            Summary|"avconv -i f.mpg -codec     |dvdsub muxing/demuxing does
                   |copy f.mkv" fails, even     |not work
                   |with "-fflags genpts"       |

--- Comment #1 from lu_zero at gentoo.org <lu_zero at gentoo.org> 2013-05-16 23:01:16 CEST ---
Looks like the problem is in the dvdsub demuxing/muxing.

avconv -i libav_codec_copy_bug_sample.mpg -c:v copy -c:a copy out.mkv
avconv version 9.5, Copyright (c) 2000-2013 the Libav developers
  built on Apr 27 2013 17:30:21 with gcc 4.7.2 (Gentoo 4.7.2-r1 p1.5,
pie-0.5.5)
Input #0, mpeg, from 'libav_codec_copy_bug_sample.mpg':
  Duration: 00:00:39.58, start: 0.280633, bitrate: 7725 kb/s
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR
4:3], 9800 kb/s, 24.08 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Stream #0.2[0x20]: Subtitle: dvdsub
File 'out.mkv' already exists. Overwrite ? [y/N] y
Output #0, matroska, to 'out.mkv':
    Stream #0.0: Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31,
9800 kb/s, 90k tbn, 90k tbc
    Stream #0.1: Audio: ac3, 48000 Hz, stereo, 192 kb/s
    Stream #0.2: Subtitle: ass, 200 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #0:2 -> #0:2 (dvdsub -> ass)
Error while opening encoder for output stream #0:2 - maybe incorrect parameters
such as bit_rate, rate, width or height

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