Date: Sat, 13 Sep 1997 18:53:48 -0400 From: Randall Hopper <rhh@ct.picker.com> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: multimedia@freebsd.org Subject: Re: [video] fxtv feedback Message-ID: <19970913185348.15487@ct.picker.com> In-Reply-To: <199709132151.OAA00472@rah.star-gate.com>; from Amancio Hasty on Sat, Sep 13, 1997 at 02:51:45PM -0700 References: <19970913161012.57800@ct.picker.com> <199709132151.OAA00472@rah.star-gate.com>
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Amancio Hasty: |Randall Hopper: |> Amancio Hasty: |> |1. Try to use yuv for mpeg encoding it should speed up video capture and |> | mpeg encoding also it should not be hard to implement given |> | all the work that has gone into fxtv to support video capture. |> |> Had this on the list from your previous request. Don't have it very high |> though since RGB does everything I need. Wouldn't really save capture |> bandwidth since, if you're running in 15- or 16-bit, RGB16 capture is being |> used. Probably would speed up image save and encoding though; don't have a |> feel for how much since I've never tried it. It's on the list. | |You save about 1/3 in bandwith and I have on my list of things |to do to have the X server support yuv directly which will be |nice for scaling to 1024x768. Really? Ok. Guess I need to read up on YUV somewhere. From scanning the driver source, I got the impression that the supported YUV fmts were 2 bytes per pixel, inferring from that that it would occupy the same raw capture bandwidth as RGB16. Guess I misinterpreted. Say, on your list of things to do, (it may be there already, but if not), can you put FPS fix for the driver up above YUV X server extensions. Then I can move fxtv up from my tweaked 4/97 rev to the latest version. Just can't give up that video capture, even if it does only work for single-field. :-) |I like the contents of your desktop it gives me the feeling of |serious programming going on over there 8) OH yeah. ;) Later-- Randall
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