[FFmpeg-trac] #1438(undetermined:new): problems with using -ss option when transcoding from *.vob to *.avi

[FFmpeg]

#1438: problems with using -ss option when transcoding from *.vob to *.avi
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  superandrzej                       |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  normal       |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by superandrzej):

 -> ffmpeg -ss 0:17:47 -t 01:28:48.4 -i '/A/film.vob' '/A/film.avi'
 ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jun 10 2012 23:15:05 with gcc 4.6.2
   configuration: --cpu=i686 --prefix=/usr --disable-static --enable-shared
 --enable-gpl --enable-version3 --disable-ffserver --enable-x11grab
 --disable-network --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libmp3lame --enable-libtheora
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [mpeg @ 0x9b333c0] max_analyze_duration 5000000 reached at 5000000
 Input #0, mpeg, from '/A/film.vob':
   Duration: 00:00:21.02, start: 0.287267, bitrate: -2147483 kb/s
     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR
 64:45 DAR 16:9], 9800 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x20]: Subtitle: dvd_subtitle
     Stream #0:2[0x21]: Subtitle: dvd_subtitle
     Stream #0:3[0x22]: Subtitle: dvd_subtitle
     Stream #0:4[0x23]: Subtitle: dvd_subtitle
     Stream #0:5[0x24]: Subtitle: dvd_subtitle
     Stream #0:6[0x25]: Subtitle: dvd_subtitle
     Stream #0:7[0x26]: Subtitle: dvd_subtitle
     Stream #0:8[0x27]: Subtitle: dvd_subtitle
     Stream #0:9[0x80]: Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s
     Stream #0:10[0x81]: Audio: ac3, 48000 Hz, 5.1(side), s16, 384 kb/s
     Stream #0:11[0x82]: Audio: ac3, 48000 Hz, 5.1(side), s16, 384 kb/s
     Stream #0:12[0x83]: Audio: ac3, 48000 Hz, 5.1(side), s16, 384 kb/s
     Stream #0:13[0x84]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
     Stream #0:14[0x28]: Subtitle: dvd_subtitle
     Stream #0:15[0x29]: Subtitle: dvd_subtitle
     Stream #0:16[0x2a]: Subtitle: dvd_subtitle
 [buffer @ 0x9b68e20] w:720 h:576 pixfmt:yuv420p tb:1/90000 sar:64/45
 sws_param:flags=2
 [buffersink @ 0xa01ac60] No opaque field provided
 [aformat @ 0x9b4e860] auto-inserting filter 'auto-inserted resampler 0'
 between the filter 'src' and the filter 'aformat'
 [aresample @ 0x9b4e6a0] chl:5.1(side) fmt:s16 r:48000Hz -> chl:stereo
 fmt:s16 r:48000Hz
 Output #0, avi, to '/A/film.avi':
   Metadata:
     ISFT            : Lavf54.6.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x576 [SAR
 64:45 DAR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc
     Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video -> mpeg4)
   Stream #0:9 -> #0:1 (ac3 -> libmp3lame)
 Press [q] to stop, [?] for help
 [ac3 @ 0x9be75a0] frame sync error
 Error while decoding stream #0:9
 [mpeg @ 0x9b333c0] Adjusting PTS forward
     Last message repeated 27 times
 frame=    0 fps=0.0 q=0.0 Lsize=      27kB time=00:-17:-25.-89 bitrate=
 -0.2kbits/s dup=0 drop=7
 video:0kB audio:16kB global headers:0kB muxing overhead 65.411932%

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1438#comment:2>
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