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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