xpm: fails to decode

[ami_stuff]

attached files fails to decode

C:\>ffmpeg -i 24bpp.xpm out.bmp
ffmpeg version 3.2.git Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.6.2 (GCC)
  configuration: --disable-pthreads --disable-ffprobe --enable-gpl
  libavutil      55. 48.100 / 55. 48.100
  libavcodec     57. 83.100 / 57. 83.100
  libavformat    57. 66.104 / 57. 66.104
  libavdevice    57.  3.100 / 57.  3.100
  libavfilter     6. 76.100 /  6. 76.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
[xpm @ 067ad880] Warning: not compiled with thread support, using thread emulati
on
Input #0, xpm_pipe, from '24bpp.xpm':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: xpm, bgra, 1024x768, 25 tbr, 25 tbn, 25 tbc
[xpm @ 06b38520] Warning: not compiled with thread support, using thread emulati
on
Stream mapping:
  Stream #0:0 -> #0:0 (xpm (native) -> bmp (native))
Press [q] to stop, [?] for help
Error while decoding stream #0:0: Invalid data found when processing input
Finishing stream 0:0 without any data written to it.
[bmp @ 067a79a0] Warning: not compiled with thread support, using thread emulati
on
Output #0, image2, to 'out.bmp':
  Metadata:
    encoder         : Lavf57.66.104
    Stream #0:0: Video: bmp, bgra, 1024x768, q=2-31, 200 kb/s, 25 fps, 25 tbn, 2
5 tbc
    Metadata:
      encoder         : Lavc57.83.100 bmp
frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=N/A
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing ove
rhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters i
f used)
Conversion failed!

[ami_stuff]

"24bpp.xpm" is actually 8bpp as well

[Carl Eugen Hoyos]

Should be fixed in fe300b2ab5d137bfd012060ff7ae50321ae8ac12