Date: Tue, 19 Mar 2002 09:26:41 -0500 From: Jason Andresen <jandrese@mitre.org> To: "Steve O'Hara-Smith" <steve@sohara.org> Cc: freebsd-multimedia@freebsd.org Subject: Re: Some video Capture questions (Was: Some audio capture questions) Message-ID: <3C974AA1.DF0A56B5@mitre.org> References: <20020315074048.A12682@hostwiththemost> <15506.40571.544247.899130@guru.mired.org> <20020316084125.3b2b0874.steve@sohara.org> <15507.9577.337812.353727@guru.mired.org> <20020316145438.7695fac0.steve@sohara.org> <3C960009.FDCF003A@mitre.org> <20020318192731.179b7400.steve@sohara.org>
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Steve O'Hara-Smith wrote: > > On Mon, 18 Mar 2002 09:56:09 -0500 > Jason Andresen <jandrese@mitre.org> wrote: > > JA> Steve O'Hara-Smith wrote: > > JA> Actually, I'm able to encode at full resolution on an AthlonXP 1700 > JA> using > JA> Charles Henrich's (henrich@sigbus.com) mencoder hacks and a BT878 card. > JA> It's certainly feasable with modern hardware to encode good quality > JA> video at full frame rate. > > Whoa there - this is interesting! > > I am having no end of trouble with those same hacks on my Athlon 1200, > I have exchanged many emails with Charles Henrich and I think we are both > currently baffled. It seems to be thrashing very badly somewhere and produces > awful results (at half resolution). You seem to have it working properly, I > would like to explore the differences. I started from mp0305cv.tgz and > xvid_snapshot_21_01_2002.tar.gz, are these the same ones you have ? Oh, I just remembered. XVid compiles by default with none of the optimizations turned on (like the custom assembly and even -O). I didn't notice that the first time and got really awful performace out of it (couldn't encode half frames at realtime!). Once I beat the makefile a bit and made it compile with the custom assembly and with the optimization flags turned on I managed to get good performance out of it. -- \ |_ _|__ __|_ \ __| Jason Andresen jandrese@mitre.org |\/ | | | / _| Network and Distributed Systems Engineer _| _|___| _| _|_\___| Office: 703-883-7755 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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