Date: Thu, 6 Mar 2003 22:58:28 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: freebsd-multimedia@FreeBSD.ORG Subject: Full resolution DVR with make buildworld running Message-ID: <20030306225828.62bf131b.steve@sohara.org>
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Hi,
I was amazed that this worked as well as it did!
With a combination of a slightly modified nuppelvideo port, a
buffering script and mencoder it is possible to capture and compress
to AVI from a bktr tuner at full PAL resolution (768x576) *with make
buildworld running* on an AMD2000+ - and probably on much less powerful
hardware, certainly if you don't run make buildworld while recording :)
The test run dropped a few frames, which it seems can be avoided
if the make buildworld is run under nice :)
The bits to make it happen can be found on ftp.sohara.org in /pub:
nuppelvideo.1.1-1.2.patch
Patch for nuppelvideo port to enable using stdout.
nuppelvideo.tar.gz
Version of the Nuppelvideo port with this patch applied.
CDRW/bigbuf.pl
Big buffer pipe - uses files in /tmp.
test.avi
Sample 768x576 avi file recorded with make buildworld running!
Using this command line:
nuvrec -W 768 -H 576 -f 792 -t 1 - | bigbuf.pl | \
nice mencoder -oac mp3lame -lameopts br=128 -ovc lavc \
-lavcopts vcodec=mpeg4:vbitrate=2400:vhq - -o test.avi
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