Date: Wed, 14 May 1997 20:52:31 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: Brad Parker <brad@parker.boston.ma.us> Cc: multimedia@FreeBSD.ORG Subject: Re: questions about current bt848 code Message-ID: <199705150352.UAA23946@rah.star-gate.com> In-Reply-To: Your message of "Wed, 14 May 1997 21:09:35 EDT." <199705150109.VAA29229@sparc>
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>From The Desk Of Brad Parker : > > I have a couple of questions about the current freebsd bt848 driver > > - why is BROOKTREE_PAGES so large? it seems like it should be, worst > case, pal rgb (768*576*4)/4096 = 432. NTSC looks like > (640*480*4)/4096=300 You can fine tune that value it was left large for the possibility of multiple frame captures which the card can do. > the "217*4" does not make sense to me... (I get the 217 - for 16 bit) > > - is bktr_read missing a call to "start_capture"? the "examples/single.c" > program I have from my meteor days hangs in the read of a single frame... Just debug , I have not had a chance to check bktr_read . Most of us use the ioctl interface. download dtv from ftp site for sample code if you like. Also you should be able to get vic going with very little problems Just use grabber-meteor.cc and change the reference to meteor0 to bktr0 or whatever bt848 device you have created. Regards, Amancio
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