[FFmpeg-trac] #362(avcodec:new): Interlaced mjpeg fails to decode

[FFmpeg]

#362: Interlaced mjpeg fails to decode
-------------------------+---------------------
  Reporter:  cehoyos     |      Owner:
      Type:  defect      |     Status:  new
  Priority:  normal      |  Component:  avcodec
   Version:  git-master  |   Keywords:
Blocked By:              |   Blocking:
Reproduced:  1           |   Analyzed:  0
-------------------------+---------------------
 Attached file plays fine with mplayer -vc m3jpeg (24 frames), ffmpeg fails
 to decode most of the frames.
 {{{
 ffmpeg -i test.avi -an -qscale 2 out.avi
 ffmpeg version N-31630-g88084ee, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Jul 25 2011 00:08:39 with gcc 4.5.3
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
   libavutil    51. 11. 0 / 51. 11. 0
   libavcodec   53.  9. 0 / 53.  9. 0
   libavformat  53.  6. 0 / 53.  6. 0
   libavdevice  53.  2. 0 / 53.  2. 0
   libavfilter   2. 27. 3 /  2. 27. 3
   libswscale    2.  0. 0 /  2.  0. 0
 Input #0, avi, from 'test.avi':
   Duration: 00:00:09.60, start: 0.000000, bitrate: 2126 kb/s
     Stream #0.0: Video: mjpeg, yuvj422p, 608x464, 29.97 fps, 29.97 tbr,
 29.97 tbn, 29.97 tbc
     Stream #0.1: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s
 Incompatible pixel format 'yuvj422p' for codec 'mpeg4', auto-selecting
 format 'yuv420p'
 [buffer @ 0x128a7c0] w:608 h:464 pixfmt:yuvj422p tb:1/1000000 sar:0/1
 sws_param:
 [buffersink @ 0x12843c0] auto-inserting filter 'auto-inserted scaler 0'
 between the filter 'src' and the filter 'out'
 [scale @ 0x1285d00] w:608 h:464 fmt:yuvj422p -> w:608 h:464 fmt:yuv420p
 flags:0x4
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf53.6.0
     Stream #0.0: Video: mpeg4, yuv420p, 608x464, q=2-31, 200 kb/s, 29.97
 tbn, 29.97 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press [q] to stop, [?] for help
 [mjpeg @ 0x1284440] EOI missing, emulating
     Last message repeated 3 times
 frame=    4 fps=  0 q=2.0 Lsize=     154kB time=00:00:00.76
 bitrate=1643.8kbits/s
 video:148kB audio:0kB global headers:0kB muxing overhead 4.115993%
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/362>
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