I made a V4L screen capture utility for my website a few years ago. Though it may have dependencies, it shouldn't be difficult to convert it to a command line utility and reduce it to monolithic binary (without the dependencies). I'll share the code as soon as I can, though I've got a tight schedule right now, don't hesitate to remind me. My home internet service is down, and service tech is supposed to look into it friday afternoon, but I won't have time to look for the code until this weekend sometime.
----- Original Message ----- From: Hans Verkuil <[EMAIL PROTECTED]> Date: Thursday, April 19, 2007 3:06 am Subject: Re: [ivtv-users] single frame capture? To: User discussion about IVTV <[email protected]> > > 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 > deviceand 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 > resultingimage in a normal image format like png. I wouldn't mind > including that > with the ivtv utilities. > > Hans > > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
