h264 gray decoding failure

[Carl Eugen Hoyos]

Output has green macroblocks, not a regression.

$ ffmpeg -flags +gray -i fate-suite/h264/interlaced_crop.mp4 -qscale 2 out.avi
ffmpeg version N-60871-g2a3cb1c Copyright (c) 2000-2014 the FFmpeg developers
  built on Feb 24 2014 11:17:11 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gray
  libavutil      52. 66.100 / 52. 66.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 33.100 / 55. 33.100
  libavdevice    55. 10.100 / 55. 10.100
  libavfilter     4.  1.103 /  4.  1.103
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 18.100 /  0. 18.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fate-suite/h264/interlaced_crop.mp4':
  Metadata:
    major_brand     : avc1
    minor_version   : 0
    compatible_brands: isomavc1
    creation_time   : 2010-10-07 15:03:51
  Duration: 00:00:05.04, start: 0.000000, bitrate: 551 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 547 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2010-10-07 15:03:51
      handler_name    : GPAC ISO Video Handler
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, avi, to 'out.avi':
  Metadata:
    major_brand     : avc1
    minor_version   : 0
    compatible_brands: isomavc1
    ISFT            : Lavf55.33.100
    Stream #0:0(und): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc (default)
    Metadata:
      creation_time   : 2010-10-07 15:03:51
      handler_name    : GPAC ISO Video Handler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> mpeg4)
Press [q] to stop, [?] for help
frame=  126 fps=0.0 q=2.0 Lsize=    2926kB time=00:00:05.04 bitrate=4755.8kbits/s
video:2917kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.296020%

[Michael Niedermayer]

Fixed in 94f60b65446b37132d7bd644ab2c4627d9488295