ffplay wmv3: gray output while seeking in the video

[ami_stuff]

I get gray output and "first frame is no keyframe" warning while seeking in the attached file with the mouse.

​http://www.datafilehost.com/d/6d2faf3f

C:\>ffplay 1226659340.wmv
ffplay version N-66438-g4f4f08e Copyright (c) 2003-2014 the FFmpeg developers
  built on Sep 24 2014 22:26:49 with gcc 4.9.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
 --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      54.  7.101 / 54.  7.101
  libavcodec     56.  1.101 / 56.  1.101
  libavformat    56.  5.100 / 56.  5.100
  libavdevice    56.  1.100 / 56.  1.100
  libavfilter     5.  1.102 /  5.  1.102
  libswscale      3.  1.100 /  3.  1.100
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  1.100 / 53.  1.100
[wmv3 @ 02f4b920] Extra data: 8 bits left, value: 0q=    0B f=0/0
Input #0, asf, from '1226659340.wmv':
  Metadata:
    Application     : Windows Movie Maker 2.1.4026.0
    WM/ParentalRating: Rap/Hip-Hop
    WMFSDKVersion   : 11.0.5721.5145
    WMFSDKNeeded    : 0.0.0.0000
    copyright       : Hip-Hop.pl
    title           : Planet L.U.C. ft. Fokus, Rahim, Nemy, Kirk
    artist          : Planet L.U.C. ft. Fokus, Rahim, Nemy, Kirk
    IsVBR           : 0
    DeviceConformanceTemplate: MP@ML
  Duration: 00:05:25.44, start: 0.000000, bitrate: 344 kb/s
    Stream #0:0(pol): Audio: wmav2 (a[1][0][0] / 0x0161), 32000 Hz, 2 channels,
fltp, 32 kb/s
    Stream #0:1(pol): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 428x240,
303 kb/s, SAR 160:160 DAR 107:60, 25 fps, 25 tbr, 1k tbn, 1k tbc
[wmv3 @ 02f4b920] Extra data: 8 bits left, value: 0q=    0B f=0/0
Seek to 52% ( 0:02:47) of total duration ( 0:05:25)       B f=0/0
[wmv3 @ 02f4b920] warning: first frame is no keyframe    0B f=0/0
Seek to 52% ( 0:02:47) of total duration ( 0:05:25)
[wmv3 @ 02f4b920] warning: first frame is no keyframe    0B f=0/0
 164.32 A-V: -2.640 fd=   0 aq=    5KB vq=   81KB sq=    0B f=0/0

[Carl Eugen Hoyos]

Not reproducible with ffmpeg, easily reproducible with mplayer -demuxer lavf -vc ffwmv3

[Carl Eugen Hoyos]

Fixed in 28206b75e81c7713476bf3736ccb6f620d96540d