Date: Mon, 20 Apr 1998 04:00:19 +0000 From: "Mark T. Ganzer" <ganzer@spawar.navy.mil> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: multimedia@FreeBSD.ORG Subject: High bandwidth use w/ VIC and BT848? Message-ID: <353AC853.E1A3751C@spawar.navy.mil>
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We make extensive use of MBONE at work, and I recently switched from using an SGI R5000 Indy to a FreeBSD machine for the MBONE "terminal" in my office. I had them both running side-by-side for a week or for test purposes, and found out that for a given frame rate, the FreeBSD/BT848 combo is using double the bandwidth of the SGI Indy. I also confirmed this by testing the FreeBSD/BT848 system against a Sun Ultra1-170/SunVideo combo. It seems like VIC on the FeeeBSD is not compressing the video stream as efficiently as the SGI or the Sun, and was wondering what the cause could be? Details of the FreeBSD system I am using: Pentium 90 system w/ 180Mhz OverDrive CPU, 96 Mbytes memory (basically an old spare PC we had around) Hauppage Wincast TV FreeBSD 2.2.6-RELEASE MASH 5.0a10 version of VIC (tried the version in 2.2.6-RELEASE as well with no apparent difference) In looking back at some previous correspondance we had regarding the Matrox Meteor vs. BT848, you mentioned "noisy capture". Could this be what I am seeing with my system? I will probably be putting a faster Motherboard in the system, but I really don't think that is the problem. I also have another WinTV card I can try. -- - Mark T. Ganzer Space & Naval Warfare Systems Center, San Diego ganzer@spawar.navy.mil To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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