> Hi folks, I just got my Hauppage WinTV PVR-150 MCE card and got it working
> with the 0.10.1 driver. It was a bit fiddly but the docs are good. I can
> now cat mpegs out of /dev/video0 and play real-time mpegs with mplayer.
>
> Is it possible to grab single frames somehow? I know I could always
> extract the first I-frame from the mpeg stream, but that seems a bit
> indirect. Are there any alternatives?
Yes, but it is a bit fiddly: the video32 device is the raw video device
and it can be used to grab a single frame only. The format of that frame
is HM12 which is described in this document in the linux kernel:
Documentation/video4linux/cx2341x/README.hm12
Actually, it would be quite nice if someone would make a C/C++ utility
that would implement a simple snapshot application and save the resulting
image in a normal image format like png. I wouldn't mind including that
with the ivtv utilities.
Hans
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