mjpeg: Weird colorspace

[rr-]

Summary of the bug:

The JPEG file is rendered, but has weird colors (only chroma and no luma), and has weird aspect ratio.
Firefox seems to decode the image correctly.

How to reproduce:

% ffmpeg 1383926217187.jpg

ffplay version 3.2.4 Copyright (c) 2003-2017 the FFmpeg developers
  built with gcc 6.3.1 (GCC) 20170109
  configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-netcdf --enable-shared --enable-version3 --enable-x11grab
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0   
[mjpeg @ 0x7f21540023a0] mjpeg: error, decode_app parser read over the end
Input #0, image2, from '/home/rr-/clutter/bad images/bad-colorspace/1383926217187.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 21983 kb/s
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x720 [SAR 106:255 DAR 1696:2295], 25 tbr, 25 tbn, 25 tbc
[mjpeg @ 0x7f2154002a20] mjpeg: error, decode_app parser read over the end
[swscaler @ 0x7f214817ec60] deprecated pixel format used, make sure you did set range correctly

[Leo Izen]

I can reproduce this in 3.2.4 but not git master. I think this bug has been fixed - try again from git master?

[Leo Izen]

Top is produced by ffmpeg 3.2.4, bottom is produced by git master

[rr-]

git master confirmed to render the images correctly. Thanks.

[Carl Eugen Hoyos]

This sample was already part of ticket #6055.