bik: autoexit does not work

[ami_stuff]

​http://samples.mplayerhq.hu/game-formats/bink/logo_legal.bik

C:\>ffplay -autoexit logo_legal.bik
ffplay version N-46726-g2f74f8d Copyright (c) 2003-2012 the FFmpeg developers
  built on Nov 13 2012 19:29:51 with gcc 4.7.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt
ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass -
-enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enab
le-libgsm --enable-libmp3lame --enable-libnut --enable-libopenjpeg --enable-libo
pus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo
ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
ble-zlib
  libavutil      52.  6.100 / 52.  6.100
  libavcodec     54. 71.100 / 54. 71.100
  libavformat    54. 36.100 / 54. 36.100
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 23.100 /  3. 23.100
  libswscale      2.  1.102 /  2.  1.102
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, bink, from 'logo_legal.bik':
  Duration: 00:00:05.00, start: 0.000000, bitrate: 633 kb/s
    Stream #0:0: Video: binkvideo (BIKi / 0x694B4942), yuv420p, 640x480, 30 tbr,
 30 tbn, 30 tbc
Frame changed from size:0x0 to size:640x480
   7.64 A-V:  0.000 fd=   1 aq=    0KB vq=    0KB sq=    0B f=0/0

[Carl Eugen Hoyos]

Fixed by Peter Ross.