[FFmpeg-trac] #1527(undetermined:new): AVRn (mjpeg) decodes incorrectly

[FFmpeg]

#1527: AVRn (mjpeg) decodes incorrectly
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 attached file decodes incorrectly compared to original codec

 {{{
 C:\>ffmpeg -i 24bpp.mov out.avi
 ffmpeg version N-42449-g9ca27df Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jul 12 2012 02:37:12 with gcc 4.5.0 20100414 (Fedora MinGW
 4.5.0-1.fc
 14)
   configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build
 --arch=
 x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686
 -pc-min
 gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-
 cpudetect
 --enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -
 lwinmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snap
 shots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/s
 napshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3
 --enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-
 libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-
 decoder=libvpx
   libavutil      51. 64.100 / 51. 64.100
   libavcodec     54. 34.100 / 54. 34.100
   libavformat    54. 16.104 / 54. 16.104
   libavdevice    54.  1.100 / 54.  1.100
   libavfilter     3.  2.100 /  3.  2.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [mjpeg @ 0x1df2320] EOI missing, emulating
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '24bpp.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
   Duration: 00:00:12.64, start: 0.000000, bitrate: 422 kb/s
     Stream #0:0(eng): Video: mjpeg (AVRn / 0x6E525641), yuvj422p, 320x272
 [SAR 7
 2:72 DAR 20:17], 417 kb/s, 8 fps, 8 tbr, 1000k tbn, 1000k tbc
     Metadata:
       handler_name    : Procedura obs│ugi skrˇtˇw danych Apple
 w:320 h:272 pixfmt:yuvj422p tb:1/1000000 fr:8/1 sar:1/1 sws_param:flags=2
 [auto-inserted scaler 0 @ 0x1e03ea0] w:320 h:272 fmt:yuvj422p sar:1/1 ->
 w:320 h
 :272 fmt:yuv420p sar:1/1 flags:0x4
 Output #0, avi, to 'out.avi':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     ISFT            : Lavf54.16.104
     Stream #0:0(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x272
 [SAR 1:
 1 DAR 20:17], q=2-31, 200 kb/s, 8 tbn, 8 tbc
     Metadata:
       handler_name    : Procedura obs│ugi skrˇtˇw danych Apple
 Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg -> mpeg4)
 Press [q] to stop, [?] for help
 [mjpeg @ 0x1df2320] EOI missing, emulating
     Last message repeated 54 times
 frame=   55 fps=0.0 q=9.5 size=     310kB time=00:00:06.87 bitrate=
 369.6kbits/s
 EOI missing, emulating
 [mjpeg @ 0x1df2320] EOI missing, emulating
     Last message repeated 45 times
 frame=  102 fps=0.0 q=6.2 Lsize=     462kB time=00:00:12.75 bitrate=
 296.9kbits/
 s
 video:454kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 1.775161%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1527>
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