Date: Tue, 13 Jul 2004 11:34:58 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: Alexander Nedotsukov <bland@FreeBSD.org> Cc: freebsd-firewire@FreeBSD.org Subject: Re: Block noise? when trying to send dv stream to video camera Message-ID: <874qocr5wt.wl@tora.nunu.org> In-Reply-To: <40F3474F.8060809@FreeBSD.org> References: <40E4C710.1040702@FreeBSD.org> <87d63bswig.wl@tora.nunu.org> <40F3474F.8060809@FreeBSD.org>
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For DV, you need to keep about 3MB/s disk I/O all the time. You may need a dedicated HD drive for a DV file. Though it's best to have some feedback mechanism to adjust timestamps, I have no plan to do so now. Latest TI's 1394b chip seems to have some extension for hardware timestamping for DV packets. I don't know details. /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html At Tue, 13 Jul 2004 11:22:07 +0900, Alexander Nedotsukov wrote: > > Hi. It's me again. > Is someone still care about broken dv upload on -CURRENT here is a small > addition to all I said before under the topic. Yestarday I was requeired > to boot up from 5.2.1 live cd and someting :-) pushed me to try > fwcontrol -S. All I can say it just works. Same machine, same dv file, > same video camera. > All the best, > Alexander. >
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