Hello,
I have a issue, it happens with
FC6 2.6.18-2868 and ivtv 8.2 and it also happens with
FC6 2.6.19-2895 and ivtv 9.1 and ivtv svn 0.9 (as of 1/20/2007).
It may be described as flickering but it kind of looks like there
is data coming from frames in the future/past, the artifacts
shows only on every other line, but does not belong in the image
for 30+ more frames later. I see the image of an open door on
frame 5, but that actually does not come along until frame
47. It looks like there is some sort of memory overwriting
going on. Using mplayer directly on the /dev/video0 device
has the same artifacts in it, so it appears to be something
in the kernel itself with the issue.
It does not happen on the same machine with kernel.org 2.6.13.1 and
0.3.7b (old) (with the same userspace).
I have used both of these firmware versions:
kernel: ivtv0: Encoder revision: 0x02050032
kernel: ivtv0: Encoder revision: 0x02060039
The first one is what is being used with 2.6.13.1 and working,
it fails with both newer versions. The second version
was only tested with newer versions but still fails.
Changing the setting below does not change the results.
v4l2-ctl -c temporal_filter=8
v4l2-ctl -c temporal_filter=0
The machine doing the mythtv display is the same in both
cases, with only the backend machines kernel and ivtv
being changed (mythtv setup is unchanged and both the
backend and frontend). Viewing the recording on a
external piece of hardware (mvpmc) has similar artifacts
in it. Viewing with mplayer produces the same
artifacts.
I am not subscribed to this list please CC:
Roger rahmrh at wildblue.net
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