Hi,
I have a Tevion MD 9717 I'm trying to get to work for about one year
now (well, every now and then ;-), with more or less acceptable results.
With version 0.2.8 of the driver I was able to digitise movies from my
camcorder (some older Sony Hi8 model) using mencoder, but only when
using resolutions not higher than 320x288. With higher resolutions its
gets harder to reach the required framerate of 25fps (but after a time
it reaches it even with dvd- resolution). But the worst problem is that
distortions appear when something moves a bit faster in the picture.
Here
http://home.pages.at/orei/0.jpg
you can see how the picture looks like shortly after recording begins.
The system hasnt settled yet and the framerate hasnt been reached.
Here
http://home.pages.at/orei/397.jpg
you can see how the picture looks after the framerate is stable at
25fps. There is me (well, part of) moving my hand through the picture.
Here is where the problems begin:
http://home.pages.at/orei/398.jpg
While my hand moves down through the picture suddenly random grey (?)
horizontal lines appear in the area of movement. They move around
randomly for some frames and suddenly disappear again when the movement
is gone.
I'm running a Redhat 8.0 system. Kernel is 2.4.20 + v4l2 patches. The
driver is inserted with
/sbin/modprobe saa7134 card=6
Further I'm using MEncoder dev-CVS-030623-06:00-3.2 with the following
command line for recording:
mencoder tv:// -tv
driver=v4l:input=3:width=720:height=576:fps=25:norm=PAL:forceaudio:adevice=/dev/audio:amode=1
-lavcopts vcodec=mpeg4:vbitrate=2000 -ovc lavc -oac pcm -o test.avi
The processor load (Duron 800) is always at around 60%.
The same problem appears with xawtv (version 3.82) when just monitoring
the composite input.
What could that be? There shouldnt be any 'dynamic compression' in the
chipset so that movement could saturate the PCI bus, right?
clueless
Ole
