[FFmpeg-trac] #511(undetermined:new): Intel JPEG library: flipped?

[FFmpeg]

#511: Intel JPEG library: flipped?
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  1          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 Since r20312, FFmpeg flips jpeg if the comment in the encoded stream
 contains "Intel(R) JPEG Library", see attached samples inteljpeg.avi
 (issue 1464) and midvidjpeg.avi (issue 1468).

 Attached Bad_1.jpg (Debian #625944) also contains the string, but should
 not be flipped.
 {{{
 $ ffmpeg -v 9 -loglevel 99 -i Bad_1.jpg
 ffmpeg version N-32933-g9b3df9b, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Sep 26 2011 01:22:40 with gcc 4.5.3
   configuration: --cc='/usr/local/gcc-4.5.3/bin/gcc -m32'
   libavutil    51. 17. 0 / 51. 17. 0
   libavcodec   53. 17. 0 / 53. 17. 0
   libavformat  53. 13. 0 / 53. 13. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 43. 5 /  2. 43. 5
   libswscale    2.  1. 0 /  2.  1. 0
 [mjpeg @ 0x8cbf0e0] Unsupported bit depth: 0
 [mjpeg @ 0x8cbf0e0] buffer too small, expanding to 10519 bytes
 [mjpeg @ 0x8cbf0e0] marker=d8 avail_size_in_buf=10519
 [mjpeg @ 0x8cbf0e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x8cbf0e0] marker=e0 avail_size_in_buf=10517
 [mjpeg @ 0x8cbf0e0] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x8cbf0e0] marker=fe avail_size_in_buf=10499
 [mjpeg @ 0x8cbf0e0] marker parser used 46 bytes (368 bits)
 [mjpeg @ 0x8cbf0e0] marker=db avail_size_in_buf=10451
 [mjpeg @ 0x8cbf0e0] index=0
 [mjpeg @ 0x8cbf0e0] qscale[0]: 3
 [mjpeg @ 0x8cbf0e0] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x8cbf0e0] marker=db avail_size_in_buf=10382
 [mjpeg @ 0x8cbf0e0] index=1
 [mjpeg @ 0x8cbf0e0] qscale[1]: 6
 [mjpeg @ 0x8cbf0e0] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x8cbf0e0] marker=c4 avail_size_in_buf=10313
 [mjpeg @ 0x8cbf0e0] class=0 index=0 nb_codes=12
 [mjpeg @ 0x8cbf0e0] class=1 index=0 nb_codes=251
 [mjpeg @ 0x8cbf0e0] class=0 index=1 nb_codes=12
 [mjpeg @ 0x8cbf0e0] class=1 index=1 nb_codes=251
 [mjpeg @ 0x8cbf0e0] marker parser used 418 bytes (3344 bits)
 [mjpeg @ 0x8cbf0e0] marker=c0 avail_size_in_buf=9893
 [mjpeg @ 0x8cbf0e0] sof0: picture: 300x300
 [mjpeg @ 0x8cbf0e0] component 0 2:2 id: 0 quant:0
 [mjpeg @ 0x8cbf0e0] component 1 1:1 id: 1 quant:1
 [mjpeg @ 0x8cbf0e0] component 2 1:1 id: 2 quant:1
 [mjpeg @ 0x8cbf0e0] pix fmt id 22111100
 [mjpeg @ 0x8cbf0e0] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x8cbf0e0] escaping removed 255 bytes
 [mjpeg @ 0x8cbf0e0] marker=da avail_size_in_buf=9874
 [mjpeg @ 0x8cbf0e0] component: 0
 [mjpeg @ 0x8cbf0e0] component: 1
 [mjpeg @ 0x8cbf0e0] component: 2
 [mjpeg @ 0x8cbf0e0] marker parser used 9618 bytes (76938 bits)
 [mjpeg @ 0x8cbf0e0] marker=d9 avail_size_in_buf=0
 [mjpeg @ 0x8cbf0e0] mjpeg decode frame unused 0 bytes
 Input #0, image2, from 'Bad_1.jpg':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0, 1, 1/25: Video: mjpeg, yuvj420p, 300x300 [SAR 1:1 DAR
 1:1], 1/25, 25 tbr, 25 tbn, 25 tbc
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/511>
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