Thu Jul 30 10:01:37 CEST 2009

test signals

OK.  It looks like the codec is actually doing something.  It gives
skipped frames probably because the input isn't different enough?
When I set Iframe interval to 1 it gives a sequence of Iframes.

So.. Let's look at what actually comes out. Concatenating 3 frames to
the file /tmp/mpeg gives:

tom@zzz:/opt/nfsroot/neuros/tmp$ file mpeg 
mpeg: MPEG sequence, v4, video

tom@zzz:/opt/nfsroot/neuros/tmp$ mplayer mpeg 
Playing mpeg.
libavformat file format detected.
[lavf] Video stream found, -vid 0
VIDEO:  [FMP4]  720x576  0bpp  30000.000 fps    0.0 kbps ( 0.0 kbyte/s)
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
Audio: no sound
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.25:1 - prescaling to correct movie aspect.
VO: [xv] 720x576 => 720x576 Planar YV12 
No pts value from demuxer to use for frame!
pts after filters MISSING
No pts value from demuxer to use for frame!,?% 0 0 
pts after filters MISSING
V:-9223372036854775808.0   0/  0 ??% ??% ??,?% 0 0 

Exiting... (End of file)

Dumping a bit more it seems to be able to play it.  Alright.  The rest
seems to be tweaking.  However it is much slower than I expected.