Date: Sun, 25 Apr 1999 18:53:12 -0700 From: John-Mark Gurney <gurney_j@efn.org> To: multimedia@freebsd.org Cc: Amancio Hasty <hasty@rah.star-gate.com>, Steve Passe <fsmp@freebsd.org> Subject: brooktree driver problems?? Message-ID: <19990425185312.25505@hydrogen.nike.efn.org>
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--LboLdkugWU4S2B/J Content-Type: text/plain; charset=us-ascii well, I'm writing a util that will allow you to specify multiple files and capture video distributed over the files... this allows you to not have to strip your drives to get the performance necessary to capture 640x480@30fps... the first problem I came across was the driver sending my program around 280-380 signals per sec... this is definately NOT 30fps... I set the geometry using the METEORSETGEO ioctl to width 160, height 120, frame 1, and fmt METEOR_GEO_YUV_12... and similar things happen when I set the geo to 320x240... as I read the driver, this shouldn't happen, but it is... the second problem I have is that then I set the format to 640x480, it captures only at 24fps and it doesn't wake my program up until I deliver the intended signal myself... I know I am not missing signals as I have a VERY simple signal handler that will count if it gets called and I haven't processed the last one... I have attached the code that I am using to set up the brooktree driver.. I should note that this is on a 3.0-R system with v1.56 of brooktree.c (the one that came with 3.0-R)... I read the commit logs for brooktree.c and didn't see anything that would address the issues I have stated above... -- John-Mark Gurney Voice: +1 541 684 8449 Cu Networking P.O. Box 5693, 97405 "The soul contains in itself the event that shall presently befall it. The event is only the actualizing of its thought." -- Ralph Waldo Emerson --LboLdkugWU4S2B/J Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename="bktr.init" ccp.height = 160; ccp.width = 120; ccp.heightoff = 0; ccp.widthoff = 0; /* 12bpp / 8bits for YUV_12 */ ccp.framesize = ccp.height * ccp.width * 12 / 8; ccp.brightness = 0; ccp.contrast = 0; ccp.fmt = METEOR_GEO_YUV_12; ccp.dev = 0; ccp.devname = "/dev/bktr0"; if ((ccfd = open(ccp->devname, O_RDONLY, 0)) == -1) return "open capture card"; i = ccp->contrast; if (ioctl(ccfd, METEORSCONT, &i) == -1) return "METEORSCONT"; i = ccp->brightness; if (ioctl(ccfd, METEORSBRIG, &i) == -1) return "METEORSBRIG"; i = METEOR_FMT_NTSC; if (ioctl(ccfd, METEORSFMT, &i) == -1) return "METEORSFMT"; geo.rows = ccp->height; geo.columns = ccp->width; geo.oformat = ccp->fmt; geo.frames = 1; if (ioctl(ccfd, METEORSETGEO, &geo) == -1) return "METEORSETGEO"; i = ccp->dev; if (ioctl(ccfd, METEORSINPUT, &i) == -1) return "METEORSINPUT"; i = SIGUSR1; if (ioctl(ccfd, METEORSSIGNAL, &i) == -1) return "METEORSSIGNAL"; if ((mem = mmap(0, ccp->framesize, PROT_READ, MAP_SHARED, ccfd, 0)) == MAP_FAILED) return "mmap"; --LboLdkugWU4S2B/J-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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