[FFmpeg-trac] #889(undetermined:new): ljpeg: lossless predictor

[FFmpeg]

#889: ljpeg: lossless predictor
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 when the file have lossless predictor set to 0, ffmpeg decodes it
 incorrectly (8/12/16/24/48bpp)

 there is also a problem with lossless predictor 7 with 12bpp file

 {{{
 C:\>ffmpeg -i 12_lossless_predictor_7.jpg
 ffmpeg version N-36492-g7f83db3, Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jan  5 2012 01:57:12 with gcc 4.6.2
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libope
 ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --en
 able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger -
 -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil      51. 34.100 / 51. 34.100
   libavcodec     53. 53.100 / 53. 53.100
   libavformat    53. 29.100 / 53. 29.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 57.101 /  2. 57.101
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  5.100 /  0.  5.100
   libpostproc    51.  2.100 / 51.  2.100
 Input #0, image2, from '12_lossless_predictor_7.jpg':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: mjpeg, gray16le, 1024x768 [SAR 96:96 DAR 4:3], 25
 tbr, 2
 5 tbn, 25 tbc
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/889>
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