[ivtv-users] Dual HVR-1600, jumps every 67 frames with S-video input MPEG

[bill at drjproperties.com]

Thanks Andy!

> Thanks for the investigation.  BTW, what tools are you using to analyze
> the video?

Just frame by frame using MythTV's built in video edit function.

>
>> It affects both cards on S-video. Don't know if it applies to over the
>> air because I have no over the air inputs yet - will work on it
>> tomorrow. Can't tell if it is the card, or the software.

It only affects the S-video input.  It seems to affect it the same when
recording from S-video on both cards simultaneously.  No better, no worse.
 So 67 frames whether one or both are recording S-video.

It DOES NOT seem to exhibit the problem recording or viewing analog cable
on either card.  And if you record S-video on one card, and cable TV on
the other, the problem exists in the S-video recording and not in the
cable recording.

I plugged the s-video into a DVD-R unit and it shows smooth (just to rule
out the feed.)

Also, the problem is very apperant with a lot of motion, but most of the
recordings are speeches at podiums, so you don't really notice much. 
Audio is fine.

> Mplayer can do buffered playback, so presentation is smoother:
>
> $ mplayer /dev/video0 -cache 8192

When I pipe it directly into mplayer, it exhibits the same problem with
S-video.  Still fine with analog cable input.



> I know what has to be done.  I'm working the problem.  I'll announce
> when I have something worth testing.

Good man (or woman)!  I'll be glad to assist with testing beta drivers. 
The unit isn't in production yet, so I can mess with it and break it to my
heart's content - and nuke and reinstall if necessary.