[FFmpeg-trac] #1992(undetermined:new): Create thumbnail error

[FFmpeg]

#1992: Create thumbnail error
-------------------------------------+-------------------------------------
             Reporter:  bfi          |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 I have a bunch of flvs that I scale and convert to mp4, then create a
 thumbnail. All the mp4s are created fine, but 9 thumbnails out of 22 fail.
 All flvs are encoded the same, but are of different sizes.

 How to reproduce:
 {{{
 % ffmpeg -i 78d04424cb944fe6bf8a42d88004d7f7.mp4 -vf thumbnail -frames:v 6
 78d04424cb944fe6bf8a42d88004d7f7.png

 ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Nov 25 2012 12:21:26 with gcc 4.7.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-pthreads
 --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-
 frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-
 amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-
 libnut --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
 libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo
 --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-
 libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
   libavutil      52.  9.100 / 52.  9.100
   libavcodec     54. 77.100 / 54. 77.100
   libavformat    54. 37.100 / 54. 37.100
   libavdevice    54.  3.100 / 54.  3.100
   libavfilter     3. 23.102 /  3. 23.102
   libswscale      2.  1.102 /  2.  1.102
   libswresample   0. 17.101 /  0. 17.101
   libpostproc    52.  2.100 / 52.  2.100
   Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 '78d04424cb944fe6bf8a42d88004d7f7.mp4':
   Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf54.37.100
   Duration: 00:00:01.44, start: 0.000000, bitrate: 198 kb/s
   Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 404x320, 191 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
   Metadata:
   handler_name    : VideoHandler
   Output #0, image2, to '78d04424cb944fe6bf8a42d88004d7f7.png':
   Metadata:
   major_brand     : isom
   minor_version   : 512
   compatible_brands: isomiso2avc1mp41
   encoder         : Lavf54.37.100
   Stream #0:0(und): Video: png, rgb24, 404x320, q=2-31, 200 kb/s, 90k tbn,
 25 tbc
   Metadata:
   handler_name    : VideoHandler
   Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> png)
   Press [q] to stop, [?] for help
   frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=
 0.0kbits/s
   video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead nan%
   Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1992>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker