Re: [gentoo-user] BTTV Mini-HOWTO -- how do I use multiple inputs?
On Mon, 28 Nov 2005 23:09:31 -0800 "Daevid Vincent" <[EMAIL PROTECTED]> wrote: > > > If I try to take a picture: > > > > > > /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 > > > /home/dae51d/public_html/nokia_cam.jpg > > > /usr/bin/v4lctl -c /dev/video1 snap jpeg 320x240 > > > /home/dae51d/public_html/ittybitty_cam.jpg > > > > > > Then the first one works fine, but the second one is failing with: > > > > > > v4l2: open /dev/video1: No such device > > > v4l2: open /dev/video1: No such device > > > v4l: open /dev/video1: No such device > > > no grabber device available > > > > yes, you probably have one bttv device with a number of inputs. you > > need to switch inputs. they are usually called TV, Composite, S-Video > > etc. If there is more than one composite they might be called > > Composite-1, Composite-2 etc > > > > On the other hand they may be audio inputs? 4 composite inputs is > > rather excessive I would have thought. > > The PCI card looks kind of like this one: > http://www.hauppauge.com/pages/products/data_impactvcb.html > But it has 3 RCA Inputs and and S-VIDEO input (see bottom of page) > > > By the way which package does v4lctl come in? > > # equery belongs v4lctl > [ Searching for file(s) v4lctl in *... ] > media-tv/xawtv-3.94-r1 (/usr/bin/v4lctl) > > > ok it is part of xawtv. just refreshing myself, you can see a list of > > available parameters with > > > > v4lctl -c /dev/video0 list > > attribute | type | current | default | comment > ---++-+-+--- > -- > norm | choice | PAL | PAL | PAL NTSC SECAM PAL-Nc PAL-M PAL-N > NTSC-JP PAL-60 > input | choice | Televis | Televis | Television Composite1 S-Video > Composite3 > audio mode | choice | mono| mono| mono stereo lang1 lang2 > bright | int| 32768 | 32768 | range is 0 => 65535 > contrast | int| 32768 | 32768 | range is 0 => 65535 > color | int| 32768 | 32768 | range is 0 => 65535 > hue| int| 32768 | 32768 | range is 0 => 65535 > mute | bool | off | off | > chroma agc | bool | off | off | > combfilter | bool | off | off | > automute | bool | on | off | > luma decim | bool | off | off | > agc crush | bool | on | off | > vcr hack | bool | off | off | > whitecrush | int| 207 | 207 | range is 0 => 255 > whitecrush | int| 127 | 127 | range is 0 => 255 > > So this doesn't mention anything about the inputs. Read again, it says you have inputs called "Television, Composite1, S-Video and Composite3". Do not confuse your video device with the card's input. You get one video device, and unless you have another v4l device present it certainly will be /dev/video0 You get a number of inputs to that device, which controls what is seen on /dev/video0. I note that on your device there are 4 physical composite inputs, but only two compsite inputs are exposed by the driver. This may be because no-one ever wrote the bttv driver expecting a card with 4 composite inputs, or it may be because the kernel has not recognised the card properly and has set up the driver wrong. Take a look at the kernel documentation in Documentation/videoforlinux, in particular CARDLSIST.bttv. If you can find your card number you can add it to your module loading line as is well documented for these cards. > > I would have thought they would be /dev/video0 ... Video2 > > Since the way that I take a snap with one camera attached to the card is > like this: > /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 > /home/dae51d/public_html/nokia_cam.jpg > > Notice the "-c /dev/video0" > > > -- > gentoo-user@gentoo.org mailing list > -- gentoo-user@gentoo.org mailing list
RE: [gentoo-user] BTTV Mini-HOWTO -- how do I use multiple inputs?
> > If I try to take a picture: > > > > /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 > > /home/dae51d/public_html/nokia_cam.jpg > > /usr/bin/v4lctl -c /dev/video1 snap jpeg 320x240 > > /home/dae51d/public_html/ittybitty_cam.jpg > > > > Then the first one works fine, but the second one is failing with: > > > > v4l2: open /dev/video1: No such device > > v4l2: open /dev/video1: No such device > > v4l: open /dev/video1: No such device > > no grabber device available > > yes, you probably have one bttv device with a number of inputs. you > need to switch inputs. they are usually called TV, Composite, S-Video > etc. If there is more than one composite they might be called > Composite-1, Composite-2 etc > > On the other hand they may be audio inputs? 4 composite inputs is > rather excessive I would have thought. The PCI card looks kind of like this one: http://www.hauppauge.com/pages/products/data_impactvcb.html But it has 3 RCA Inputs and and S-VIDEO input (see bottom of page) > By the way which package does v4lctl come in? # equery belongs v4lctl [ Searching for file(s) v4lctl in *... ] media-tv/xawtv-3.94-r1 (/usr/bin/v4lctl) > ok it is part of xawtv. just refreshing myself, you can see a list of > available parameters with > > v4lctl -c /dev/video0 list attribute | type | current | default | comment ---++-+-+--- -- norm | choice | PAL | PAL | PAL NTSC SECAM PAL-Nc PAL-M PAL-N NTSC-JP PAL-60 input | choice | Televis | Televis | Television Composite1 S-Video Composite3 audio mode | choice | mono| mono| mono stereo lang1 lang2 bright | int| 32768 | 32768 | range is 0 => 65535 contrast | int| 32768 | 32768 | range is 0 => 65535 color | int| 32768 | 32768 | range is 0 => 65535 hue| int| 32768 | 32768 | range is 0 => 65535 mute | bool | off | off | chroma agc | bool | off | off | combfilter | bool | off | off | automute | bool | on | off | luma decim | bool | off | off | agc crush | bool | on | off | vcr hack | bool | off | off | whitecrush | int| 207 | 207 | range is 0 => 255 whitecrush | int| 127 | 127 | range is 0 => 255 So this doesn't mention anything about the inputs. I would have thought they would be /dev/video0 ... Video2 Since the way that I take a snap with one camera attached to the card is like this: /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 /home/dae51d/public_html/nokia_cam.jpg Notice the "-c /dev/video0" -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] BTTV Mini-HOWTO -- how do I use multiple inputs?
On Mon, 28 Nov 2005 23:17:37 +1300 Nick Rout <[EMAIL PROTECTED]> wrote: > yes, you probably have one bttv device with a number of inputs. you > need to switch inputs. they are usually called TV, Composite, S-Video > etc. If there is more than one composite they might be called > Composite-1, Composite-2 etc > > On the other hand they may be audio inputs? 4 composite inputs is > rather excessive I would have thought. > > By the way which package does v4lctl come in? ok it is part of xawtv. just refreshing myself, you can see a list of available parameters with v4lctl -c /dev/video0 list -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] BTTV Mini-HOWTO -- how do I use multiple inputs?
On Sun, 27 Nov 2005 20:54:02 -0800 "Daevid Vincent" <[EMAIL PROTECTED]> wrote: > Followed the howto here: > http://www.faqs.org/docs/Linux-mini/BTTV.html > (which by the way is 5 years old) > > I have an old hauppauge bt878 card with 4 inputs on it. > > I have the video1 working fine, but how do I enable the other inputs? > They're all the same RCA kind. > > I ran the MAKEDEV script, but it didn't seem to make all the video* and vbi* > nodes other than the first one... > > I manually created the rest using the HOWTO as an example: > I don't know anything about nodes and all this stuff, so I guessed that the > 'c' number is the same as the ones that were created, and the number next to > that increments from the one created. > > daevid bin # ll /dev/video* > lr-xr-xr-x 1 root root 11 Nov 27 19:42 /dev/video -> /dev/video0 > lr-xr-xr-x 1 root root 10 Nov 27 19:46 /dev/video0 -> v4l/video0 > lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video1 -> v4l/video1 > lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video2 -> v4l/video2 > lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video3 -> v4l/video3 > daevid bin # ll /dev/vbi* > lr-xr-xr-x 1 root root 9 Nov 27 19:42 /dev/vbi -> /dev/vbi0 > lr-xr-xr-x 1 root root 8 Nov 27 19:46 /dev/vbi0 -> v4l/vbi0 > lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi1 -> v4l/vbi1 > lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi2 -> v4l/vbi2 > lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi3 -> v4l/vbi3 > daevid bin # ll /dev/v4l/* > crw-rw-rw- 1 root video 81, 224 Dec 31 1969 /dev/v4l/vbi0 > crw-rw-rw- 1 root video 81, 225 Nov 27 20:35 /dev/v4l/vbi1 > crw-rw-rw- 1 root video 81, 226 Nov 27 20:35 /dev/v4l/vbi2 > crw-rw-rw- 1 root video 81, 227 Nov 27 20:35 /dev/v4l/vbi3 > crw-rw-rw- 1 root video 81, 0 Dec 31 1969 /dev/v4l/video0 > crw-rw-rw- 1 root video 81, 1 Nov 27 20:35 /dev/v4l/video1 > crw-rw-rw- 1 root video 81, 2 Nov 27 20:35 /dev/v4l/video2 > crw-rw-rw- 1 root video 81, 3 Nov 27 20:35 /dev/v4l/video3 > > > If I try to take a picture: > > /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 > /home/dae51d/public_html/nokia_cam.jpg > /usr/bin/v4lctl -c /dev/video1 snap jpeg 320x240 > /home/dae51d/public_html/ittybitty_cam.jpg > > Then the first one works fine, but the second one is failing with: > > v4l2: open /dev/video1: No such device > v4l2: open /dev/video1: No such device > v4l: open /dev/video1: No such device > no grabber device available yes, you probably have one bttv device with a number of inputs. you need to switch inputs. they are usually called TV, Composite, S-Video etc. If there is more than one composite they might be called Composite-1, Composite-2 etc On the other hand they may be audio inputs? 4 composite inputs is rather excessive I would have thought. By the way which package does v4lctl come in? > > -- > gentoo-user@gentoo.org mailing list > -- gentoo-user@gentoo.org mailing list
[gentoo-user] BTTV Mini-HOWTO -- how do I use multiple inputs?
Followed the howto here: http://www.faqs.org/docs/Linux-mini/BTTV.html (which by the way is 5 years old) I have an old hauppauge bt878 card with 4 inputs on it. I have the video1 working fine, but how do I enable the other inputs? They're all the same RCA kind. I ran the MAKEDEV script, but it didn't seem to make all the video* and vbi* nodes other than the first one... I manually created the rest using the HOWTO as an example: I don't know anything about nodes and all this stuff, so I guessed that the 'c' number is the same as the ones that were created, and the number next to that increments from the one created. daevid bin # ll /dev/video* lr-xr-xr-x 1 root root 11 Nov 27 19:42 /dev/video -> /dev/video0 lr-xr-xr-x 1 root root 10 Nov 27 19:46 /dev/video0 -> v4l/video0 lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video1 -> v4l/video1 lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video2 -> v4l/video2 lr-xr-xr-x 1 root root 10 Nov 27 20:36 /dev/video3 -> v4l/video3 daevid bin # ll /dev/vbi* lr-xr-xr-x 1 root root 9 Nov 27 19:42 /dev/vbi -> /dev/vbi0 lr-xr-xr-x 1 root root 8 Nov 27 19:46 /dev/vbi0 -> v4l/vbi0 lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi1 -> v4l/vbi1 lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi2 -> v4l/vbi2 lr-xr-xr-x 1 root root 8 Nov 27 20:37 /dev/vbi3 -> v4l/vbi3 daevid bin # ll /dev/v4l/* crw-rw-rw- 1 root video 81, 224 Dec 31 1969 /dev/v4l/vbi0 crw-rw-rw- 1 root video 81, 225 Nov 27 20:35 /dev/v4l/vbi1 crw-rw-rw- 1 root video 81, 226 Nov 27 20:35 /dev/v4l/vbi2 crw-rw-rw- 1 root video 81, 227 Nov 27 20:35 /dev/v4l/vbi3 crw-rw-rw- 1 root video 81, 0 Dec 31 1969 /dev/v4l/video0 crw-rw-rw- 1 root video 81, 1 Nov 27 20:35 /dev/v4l/video1 crw-rw-rw- 1 root video 81, 2 Nov 27 20:35 /dev/v4l/video2 crw-rw-rw- 1 root video 81, 3 Nov 27 20:35 /dev/v4l/video3 If I try to take a picture: /usr/bin/v4lctl -c /dev/video0 snap jpeg 320x240 /home/dae51d/public_html/nokia_cam.jpg /usr/bin/v4lctl -c /dev/video1 snap jpeg 320x240 /home/dae51d/public_html/ittybitty_cam.jpg Then the first one works fine, but the second one is failing with: v4l2: open /dev/video1: No such device v4l2: open /dev/video1: No such device v4l: open /dev/video1: No such device no grabber device available -- gentoo-user@gentoo.org mailing list
