[FFmpeg-user] Manually convert XYZ to YUV

[Carles Vila]

Hi I have been given an MP4 which has been extracted from DCP without
color-correction, so it still has the greenish look from the XYZ colorspace.
Is there any way to convert it and make it look approximately normal?
Thank you!
below are the specs of the source:

ffmpeg -i INPUT.mov
ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
  built with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2_1 --enable-shared
--enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables
--enable-avresample --cc=clang --host-cflags= --host-ldflags=
--enable-opencl --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc
--enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx
--enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus
--enable-libquvi --enable-libx265 --enable-libopenjpeg
--extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 '
--enable-nonfree --enable-vda
  libavutil      54. 27.100 / 54. 27.100
  libavcodec     56. 41.100 / 56. 41.100
  libavformat    56. 36.100 / 56. 36.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 16.101 /  5. 16.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'INPUT.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2016-11-22 16:28:35
  Duration: 00:00:53.63, start: 0.000000, bitrate: 3388 kb/s
    Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709), 2048x858, 3385 kb/s, 24 fps, 24 tbr, 24 tbn, 48 tbc (default)
    Metadata:
      creation_time   : 2016-11-22 16:28:35
      handler_name    : Gestor de datos de alias Apple
      encoder         : H.264
At least one output file must be specified