title: FFmpeg: A few errors including invalid frame size and incomplete frame
body: <p>I use this ffmpeg command to take clips from a large VOB files that is on a DVD:</p>
  
  <pre><code>ffmpeg.exe -i E:\VTS_02_2.vob -ss 00:00:57 -t 00:16:15 vids\VTS_02_2.vob
  </code></pre>
  
  <p>It worked first for a VOB file but then I got these errors:</p>
  
  <pre><code>c:\ffmpeg&gt;ffmpeg.exe -i E:\VTS_02_2.vob -ss 00:00:57 -t 00:16:15 vids\VTS_02_2.vob
  FFmpeg version SVN-r15625, Copyright (c) 2000-2008 Fabrice Bellard, et al.
    configuration: --enable-memalign-hack --enable-postproc --enable-swscale --enable-g
  l --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libv
  rbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-ffserver --disabl
  -vhook --enable-avisynth --enable-pthreads
    libavutil     49.12. 0 / 49.12. 0
    libavcodec    52. 0. 0 / 52. 0. 0
    libavformat   52.22. 1 / 52.22. 1
    libavdevice   52. 1. 0 / 52. 1. 0
    libswscale     0. 6. 1 /  0. 6. 1
    libpostproc   51. 2. 0 / 51. 2. 0
    built on Oct 16 2008 05:40:02, gcc: 4.2.4 (TDM-1 for MinGW)
  Input #0, mpeg, from 'E:\VTS_02_2.vob':
    Duration: 00:17:11.61, start: 1031.828511, bitrate: 8326 kb/s
      Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 9640
  kb/s, 25.00 tb(r)
      Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
  File 'vids\VTS_02_2.vob' already exists. Overwrite ? [y/N] y
  Output #0, svcd, to 'vids\VTS_02_2.vob':
      Stream #0.0: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], q=2-31, 200
  kb/s, 25.00 tb(c)
      Stream #0.1: Audio: mp2, 48000 Hz, stereo, s16, 64 kb/s
  Stream mapping:
    Stream #0.0 -&gt; #0.0
    Stream #0.1 -&gt; #0.1
  Press [q] to stop encoding
  [ac3 @ 026D3990]frame sync error
  Error while decoding stream #0.1
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  [mpeg2video @ 0141B780]ac-tex damaged at 40 2
  [mpeg2video @ 0141B780]invalid mb type in B Frame at 3 12
  [mpeg2video @ 0141B780]00 motion_type at 15 16
  [mpeg2video @ 0141B780]mb incr damaged
  [mpeg2video @ 0141B780]00 motion_type at 2 21
  [mpeg2video @ 0141B780]00 motion_type at 44 22
  [mpeg2video @ 0141B780]ac-tex damaged at 43 24
  [mpeg2video @ 0141B780]Warning MVs not available
  [mpeg2video @ 0141B780]concealing 765 DC, 765 AC, 765 MV errors
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  [mpeg2video @ 0141B780]ac-tex damaged at 5 9
  [mpeg2video @ 0141B780]00 motion_type at 21 13
  [mpeg2video @ 0141B780]ac-tex damaged at 1 20
  [mpeg2video @ 0141B780]mb incr damaged
  [mpeg2video @ 0141B780]00 motion_type at 30 30
  [mpeg2video @ 0141B780]Warning MVs not available
  [mpeg2video @ 0141B780]concealing 450 DC, 450 AC, 450 MV errors
  [ac3 @ 026D3990]frame CRC mismatch
  [ac3 @ 026D3990]incomplete frame
  [ac3 @ 026D3990]invalid frame size
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  [mpeg2video @ 0141B780]00 motion_type at 38 15
  [mpeg2video @ 0141B780]00 motion_type at 30 34
  [mpeg2video @ 0141B780]Warning MVs not available
  [mpeg2video @ 0141B780]concealing 254 DC, 254 AC, 254 MV errors
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  [mpeg2video @ 0141B780]ac-tex damaged at 7 6
  [mpeg2video @ 0141B780]concealing 1350 DC, 1350 AC, 1350 MV errors
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  [ac3 @ 026D3990]incomplete frame
  [ac3 @ 026D3990]invalid frame size
  frame=    0 fps=  0 q=0.0 size=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  frame=    0 fps=  0 q=0.0 Lsize=       0kB time=10000000000.00 bitrate=   0.0kbits/s
  
  video:0kB audio:0kB global headers:0kB muxing overhead -1.#IND00%
  </code></pre>
  
  <p><strong>Is there a way to force ffmpeg to just give me an output?</strong></p>