[FFmpeg-trac] #3402(avcodec:new): dpx parser is more strict than the dpx decoder

[FFmpeg]

#3402: dpx parser is more strict than the dpx decoder
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               Reporter:  cehoyos     |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avcodec
                Version:  git-master  |               Keywords:  dpx
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
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 http://thread.gmane.org/gmane.comp.video.ffmpeg.libav.user/12337/focus=12504
 The dpx sample fate-suite/dpx/lighthouse_rgb48.dpx has an incorrect
 filesize written in the header, works fine with the lavc decoder, the lavc
 parser cuts the file.
 {{{
 $ cat fate-suite/dpx/lighthouse_rgb48.dpx | ./ffmpeg -f image2pipe -vcodec
 dpx -i - out.png
 ffmpeg version N-60762-g3edc3b1 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Feb 20 2014 09:30:22 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 65.100 / 52. 65.100
   libavcodec     55. 52.102 / 55. 52.102
   libavformat    55. 33.100 / 55. 33.100
   libavdevice    55. 10.100 / 55. 10.100
   libavfilter     4.  1.103 /  4.  1.103
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [dpx @ 0x2ad3b20] Overread buffer. Invalid header?
 Input #0, image2pipe, from 'pipe:':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: dpx, rgb48be, 768x512, 25 tbr, 25 tbn, 25 tbc
 Output #0, image2, to 'out.png':
   Metadata:
     encoder         : Lavf55.33.100
     Stream #0:0: Video: png, rgb48be, 768x512, q=2-31, 200 kb/s, 90k tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (dpx -> png)
 [dpx @ 0x2ad3b20] Overread buffer. Invalid header?
 Error while decoding stream #0:0: Invalid data found when processing input
 pipe:: Input/output error
 frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A
 video:0kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead
 -inf%
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3402>
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