Date: Sun, 25 Aug 1996 01:48:27 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: nirva@ishiboo.com Cc: freebsd-multimedia@FreeBSD.org Subject: Re: Meteor Frame Rate Message-ID: <199608250848.BAA06931@rah.star-gate.com> In-Reply-To: Your message of "Thu, 22 Aug 1996 21:55:04 MDT." <19960823035504.3801.qmail@dot.ishiboo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
My ISDN Line is down and when it comes back up next week we can revisit tv, memory bandwith issues, cpu , cpu chipsets , memory type, etc... The bottom line is that the Meteor is capable of 640x480 30fps however this is only in PCI to PCI mode at least with my P100 , Triton and 70ns memory. The limitation is mostly the memory bandwith on the PCs. Amancio >From The Desk Of nirva@ishiboo.com : > I posted about a few problems yesterday, I didn't have frame > rates handy. > > I got 320x240x16bpp input and 320x240x16bpp output at 15fps > using MIT SHM. > > I removed the display (XShmPutImage()) and the frame rate > didnt change at all. However, removing the Meteor ioctl() to > put it into continuous sync mode did pump up the frame rate > from 300fps to 500fps, with great delay to the rest of my > machine. > > So, I guess the bottleneck is the Meteor. The specs on the card > say it is capable of faster. So am I doing something totally > stupid or is there a trick to making it 8 times faster? (640x480x24bpp@30fps) > > My hiwat is set to my framecount-1 and the lowat is framecount-2. > > Going from 4 to 8 to 16 frames makes no difference. > > Also, I'v heard of a program by Amancio Hasty called tv, where > would I get this? I tried to look on rah.star-gate.com but I > can't reach the machine ever. > > --------------------------------------------------------------------------- > Danny Dulai Feet. Pumice. Lotion. > http://www.ishiboo.com/~nirva/ nirva@ishiboo.com > ---------------------------------------------------------------------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199608250848.BAA06931>