Date: Thu, 22 Aug 1996 08:09:39 -0500 From: "Eric L. Hernes" <erich@lodgenet.com> To: nirva@ishiboo.com Cc: freebsd-multimedia@freebsd.org Subject: Re: Matrox Meteor errors Message-ID: <199608221309.IAA05381@jake.lodgenet.com> In-Reply-To: Your message of "Wed, 21 Aug 1996 23:14:08 MDT." <19960822051408.21551.qmail@dot.ishiboo.com>
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nirva@ishiboo.com writes: > >meteor0: capture error: even FIFO overflow. >meteor0: capture error: even FIFO overflow. > I've seen 'em too, Jim or Mark can probably explain them. > >Also, I'm having frame rate problems... what is the max frame >rate anyone has gotten out there? At 640x480, its being too >slow for confort, and at 520x390 its being pretty bad too, >I'll write up stuff soon to get exact numbers. The problem >exists with or without my image processing stuff. I think I've heard Jim get 30 fps @ 640x480. I've gotten 30 fps @ 352x240, but only 'til I run out of ram. I'm trying to save to disk, not display. > >My system is a PPro200 with a Intel Venus motherboard. The X >server is Xinside 1.3, using a Matrox Millienium 4 meg (soon >to be 8). xdpyinfo and dmesg results are at the end of this >message. I'm running a dual P90, neptune chipset, which has PCI problems; plus the PCI bus is only running at 30 Mhz, so a person could probably get a wee bit more out of it by running at 33 Mhz. > >Any help would be appreciated, I can also distribute copies >of my app, but at the moemnt it is hardcoded for my needs, >16bpp display, Truecolor visual, and 24bpp input. > >Any clues to the problem, advice, samples of work, or >explainations are appreciated. > I started with the `test-n.c' from the examples. My program mmap's a region large enough for however many frames I want (200-400) and bcopys to it. I've played with a larger circular buffer, up to 2101 pages. It didn't seem to make much difference. When I run out of ram, it slows to about 10 fps. > >--------------------------------------------------------------------------- >Danny Dulai Feet. Pumice. Lotion. >http://www.ishiboo.com/~nirva/ nirva@ishiboo.com >--------------------------------------------------------------------------- eric. -- erich@lodgenet.com http://rrnet.com/~erich erich@rrnet.com
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