Date: Tue, 18 Feb 1997 19:22:59 -0500 From: Randall Hopper <rhh@ct.picker.com> To: Jamie Bowden <jamie@inna.net> Cc: multimedia@FreeBSD.org Subject: Re: bt848 Message-ID: <19970218192259.57917@ct.picker.com> In-Reply-To: <199702182323.PAA00498@rah.star-gate.com>; from Amancio Hasty on Feb 02, 1997 at 03:23:50PM References: <Pine.BSF.3.91.970218180813.274E-100000@dolphin.inna.net> <199702182323.PAA00498@rah.star-gate.com>
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You may want to look at both STB board and the WinCast/TV and WinCast/TVdbx boards. From what I've seen/heard, Hauppauge has better tech support and more stable drivers than STB, which is why I went with them. Also, one thing to be aware of when scanning the Hauppauge promo info on their web site: http://www.hauppauge.com/hcw/index.htm http://206.149.250.27/index.htm What they refer to as Overlay mode is different than what Amancio's referring to. When doing video-in-window, their MSW95 drivers always do PCI-to-PCI transfer over the bus. Their "Overlay Mode" refers to transferring YUV to the video card and letting the video card do any scaling/quantization (thus scaling is only limitied by the video card). Their "Primary Surface Mode" on the other hand refers to transferring raw pixel data to the video card in its frame buffer's formats, doing any necessary scaling and quantization on the WinCast card (which the Bt848 limits to 640x480 for NTSC). Their Overlay Mode requires a video card that supports a YUV port and they say this eats about half a meg of memory on the video card to store YUV frames as they come in. I get very good results running Primary Surface with my Hercules card. Randall Hopper Amancio Hasty: |I would also check out Hauppage's WinCast Tv which also has a tuner which |is currently not supported however various hackers have expressed keen |interest in supporting . | |A couple of things about the Win95 Bt848 drivers, they differ first of. |You really want one which can provide "overlay" that is PCI to PCI |transfer and also support for different video formats. The Intel |Smart Video Recorder III driver is very limited: |o no "overlay" capability |o supports only YUV9 and RGB24
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