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To: Randall Hopper <rhh@ct.picker.com>
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Subject: Re: Fxtv 0.43 
In-reply-to: Your message of "Wed, 18 Jun 1997 21:38:47 EDT."
             <19970618213847.33721@ct.picker.com> 
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Date: Wed, 18 Jun 1997 19:58:05 -0700
From: Amancio Hasty <hasty@rah.star-gate.com>
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I haven't played with the new version however from the info at your web site,
fxtv is looking  outstanding!!

	Good Job!
	Amancio

>From The Desk Of Randall Hopper :
> URL: http://multiverse.com/~rhh/fxtv
> 
> Got some new toys put into this version.
> 
>     - Image Save-to-Disk - saves the last frozen image (TIFF) 
>     - Audio Save-to-disk (Raw, AU, AIFF, WAV, VOC, MPEG-2, MPEG-3)
>     - Video Save-to-disk (TIFF sequences and/or MPEG video stream)
>     - FPS control added
>     - Doesn't kill the CPU anymore.  Virtually no load for direct video
>       mode, and surprisingly little load even in ximage mode.
>     
> And a few things (see the ChangeLog for details).  Be sure to check out the
> sample clips, and keep in mind the 30fps clip was captured on an IDE disk
> if you can believe it, so you SCSI folks will be doing even higher res at
> the same rate.
> 
>      A few notes about the new features.  There are some new build- and
> run-time dependencies (libtiff, sox, mpeg_encode, etc.).  See the README
> for details on building, installing, and running this version and the
> utilities it calls.
> 
>      Also, 0.43 delivers on a slightly hacked version of the bt848 driver.
> FPS adjustment didn't work with previous versions, but with this version it
> at least works for single-field.  The Bt848's FPS control is used both for
> throttling the video stream while capturing to disk as well as for
> displaying continuous video on the screen.
> 
>      As always, feel free to add things into fxtv and mail new features/
> comments/bug reports/etc. anytime.  There's plenty of room for video
> capture optimization and support enhancements (what's there now is really
> just first-cut).  A few of the many things that still can be done to to
> beef it up include:
>  
>      - interleaved capturing to multiple disks 
>      - simultaneous audio and video capturing 
>      - capturing 24-bit instead of 16-bit if there's enough disk bandwidth 
>        available
>      - capturing YUV (instead of RGB and converting later), and
>      - making the "Optimize" algorithm more intelligent :-)
> 
> It'll also be worth trying capture to an LFS once John Dyson gets it put
> back together (seems like I read that he's working on it).  Should give
> better throughput.
> 
> Incidentally, I did try capturing to raw hard disk devices and found I got
> a higher consistent FPS throughput (i.e. no "hickups") writing to a UFS, so
> I didn't put in support for capturing to device files in 0.43.  Easy enough
> to hack in though if somebody wants to play with it.
> 
>      Have fun, and let me know how it goes!
> 
> Randall