Date: Wed, 22 Oct 2003 07:48:54 +0200 From: Steve O'Hara-Smith <steve@sohara.org> To: stan <stanb@panix.com> Cc: freebsd-multimedia@freebsd.org Subject: Re: FW: still image capture from video stream Message-ID: <20031022074854.0aae52e3.steve@sohara.org> In-Reply-To: <20031021193549.GC21626@teddy.fas.com> References: <20031021193549.GC21626@teddy.fas.com>
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On Tue, 21 Oct 2003 15:35:49 -0400
stan <stanb@panix.com> wrote:
S> I'm thinking I can do this with a video capture borad, right? Which
S> ones are well supported under FreeBSD? I don't need ultra high
Almost any BT8[47][89] based card, and almost nothing else.
There's a very simple program to capture a jpeg from the bktr
interface called bktr2jpeg that should do the job - a search should find
the code quickly enough (it's a single C file very simple code, the
meteor man page has enough information to rewrite it).
You could also set ffmpeg to run at 4 frames per second and emit
an MJPEG, AVI or MPEG stream.
S> resolutin, as a matter of fact, gien the number of images that I'll be
S> accumulating (4/per second * 60 seconds * 60 minutes * 24 hours *
S> number of days I need to keep) small image size is very important.
You can set that down to quarter resolution (160x120 for NTSC).
S> So, how about some pointers to docs on this? And some advice on
S> hardware would be welcome also.
man bktr
man meteor
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