Date: Mon, 12 Jan 1998 12:06:38 +0000 From: Roger Hardiman <roger@cs.strath.ac.uk> To: multimedia@freebsd.org Subject: FXTV. Watching two programs at the same time with two BT848s Message-ID: <34BA074E.167E@cs.strath.ac.uk>
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I have 2 BT848 cards (a WinTV/PCI and a VideoLogic Captivator PCI). I want to watch two video inputs, one via each grabber. FXTV 0.46 is hard coded to open /dev/bktr0 for the video input. I have changed this to allow a new option, -deviceNumber which can be any integer. This defines the bktr device to open. eg fxtv -deviceNumber 0 & fxtv -deviceNumber 1 & The diffs for app_rsrc.h and tvcapture.c follow. If there are any problems, the entire source, including patch can be ftp'ed from vulture.dmem.strath.ac.uk in /pub/fxtv Roger Hardiman ---app_rsrc.h 40a41 > int device_number; 110a112,113 > #define RNdeviceNumber "deviceNumber" > #define RCdeviceNumber "DeviceNumber" 202a206 > { "-deviceNumber" , RNdeviceNumber , XrmoptionSepArg, NULL } , 270a275,277 > { RNdeviceNumber, RCdeviceNumber, XtRInt, sizeof(int), > XtOffsetOf(AppResources, device_number), XtRString, > "0" }, 446a454 > -deviceNumber <#> - bktr device number ; def=0 ---tv_capture.c is 1110c1110,1112 < c->fd = open( "/dev/bktr0", O_RDONLY ); --- > char device_string[12]; > sprintf(device_string,"/dev/bktr%d",App_res.device_number); > c->fd = open( device_string, O_RDONLY ); 1112,1113c1114,1115 < fprintf( stderr, "open(\"/dev/bktr0\") failed: %s\n", < strerror(errno) ); --- > fprintf( stderr, "open(\"%s\") failed: %s\n", > device_string,strerror(errno) ); 1116c1118,1120 < c->tfd = open( "/dev/tuner0", O_RDONLY ); --- > > sprintf(device_string,"/dev/tuner%d",App_res.device_number); > c->tfd = open( device_string , O_RDONLY ); 1118,1119c1122,1123 < fprintf( stderr, "open(\"/dev/tuner0\") failed: %s\n", < strerror(errno) ); --- > fprintf( stderr, "open(\"%s\") failed: %s\n", > device_string,strerror(errno) ); Roger Hardiman, | Department of Computer Science, PhD Research Student, | University of Strathclyde, roger@cs.strath.ac.uk | Glasgow, Scotland, UK http://www.cs.strath.ac.uk/~roger
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