[FFmpeg-user] ffvhuff -> rawvideo: all pixels have blue tint.

[James Board]

Hi.  I'm trying to convert an AVI file that is compressed with ffvhuff into another
AVI file that isn't compressed with ffvhuff (rawvideo).  The output file is
blue-shifted.  Everything looks blue.  Here is the ffmpeg command:


> ffmpeg -y -i IN.avi -c:v rawvideo OUT.avi
ffmpeg version N-54733-gab5f581 Copyright (c) 2000-2013 the FFmpeg developers
  built on Aug  5 2013 20:24:36 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
  configuration: --enable-libfreetype --enable-gpl --enable-libx264
  libavutil      52. 39.100 / 52. 39.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 80.101 /  3. 80.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Input #0, avi, from 'IN.avi':
  Metadata:
    encoder         : Lavf55.12.102
  Duration: 00:00:04.07, start: 0.000000, bitrate: 453949 kb/s
    Stream #0:0: Video: ffvhuff (FFVH / 0x48564646), yuv422p, 1920x1080, 29.97 tbr, 29.97 tbn, 29.97 tbc
Output #0, avi, to 'OUT420.avi':
  Metadata:
    ISFT            : Lavf55.12.102
    Stream #0:0: Video: rawvideo (Y42B / 0x42323459), yuv422p, 1920x1080, q=2-31, 200 kb/s, 29.97 tbn, 29.97 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (ffvhuff -> rawvideo)
Press [q] to stop, [?] for help
frame=  122 fps=0.0 q=0.0 Lsize=  494108kB time=00:00:04.07 bitrate=994350.7kbits/s
video:494100kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.001702%


Here is an ffprobe of the input file:
> ffprobe IN.avi
ffprobe version N-54733-gab5f581 Copyright (c) 2007-2013 the FFmpeg developers
  built on Aug  5 2013 20:24:36 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
  configuration: --enable-libfreetype --enable-gpl --enable-libx264
  libavutil      52. 39.100 / 52. 39.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 80.101 /  3. 80.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Input #0, avi, from 'IN.avi':
  Metadata:
    encoder         : Lavf55.12.102
  Duration: 00:00:04.07, start: 0.000000, bitrate: 453949 kb/s
    Stream #0:0: Video: ffvhuff (FFVH / 0x48564646), yuv422p, 1920x1080, 29.97 tbr, 29.97 tbn, 29.97 tbc

Here is an ffprobe of the output file:
> ffprobe OUT.avi
ffprobe version N-54733-gab5f581 Copyright (c) 2007-2013 the FFmpeg developers
  built on Aug  5 2013 20:24:36 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
  configuration: --enable-libfreetype --enable-gpl --enable-libx264
  libavutil      52. 39.100 / 52. 39.100
  libavcodec     55. 18.102 / 55. 18.102
  libavformat    55. 12.102 / 55. 12.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 80.101 /  3. 80.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
Input #0, avi, from 'OUT.avi':
  Metadata:
    encoder         : Lavf55.12.102
  Duration: 00:00:04.07, start: 0.000000, bitrate: 994350 kb/s
    Stream #0:0: Video: rawvideo (Y42B / 0x42323459), yuv422p, 1920x1080, 29.97 tbr, 29.97 tbn, 29.97 tbc




Does anyone know how I can do this correctly?