Dr. Michael J. Chudobiak wrote:
Can someone give me some guidance on viewing the output of CCD
surveillance/astronomy cameras?
I have a low-light PC164C-EX black and white "high resolution" CCD
camera that I would like to use with a bt878-based PV-143PA 4-port
capture card. More info here:
http://www.supercircuits.com/index.asp?PageAction=VIEWPROD&ProdID=4167
http://www.bluecherry.net/store/catalog/index.php?main_page=product_info&cPath=33_44&products_id=130
How can I use mplayer or something similar to view the composite video
output of this camera? Do I need special modprobe.conf entries? I've
tried commands like:
mplayer -tv driver=v4l:norm=ntsc:input=3:width=352:height=240 -double
-vo sdl tv://
but all I get is static. (input=3 is correct, and all other choices give
a screen of mostly blue).
Some diagnostics:
[root@server2 ~]# dmesg | grep bttv
bttv: driver version 0.9.15 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:00:04.0, irq: 201, latency: 32, mmio:
0xfeb01000
bttv0: detected: Provideo PV143A [card=105], PCI subsystem ID is aa00:1430
bttv0: using: ProVideo PV143 [card=105,autodetected]
bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init]
bttv0: using tuner=-1
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
bttv0: i2c: checking for TDA9887 @ 0x86... not found
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok
[root@server2 etc]# ll -a /dev/video0
crw-rw---- 1 root root 81, 0 Jul 22 16:28 /dev/video0
[root@server2 ~]# lspci | grep 878
00:04.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 11)
00:04.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture
(rev 11)
[root@server2 ~]# mplayer -tv
driver=v4l:norm=ntsc:input=3:width=352:height=240 -double -vo sdl tv://
MPlayer 1.0pre7-4.0.0 (C) 2000-2005 MPlayer Team
......[snip].....
Selected device: BT878 video (ProVideo PV143)
Capabilites: capture tuner overlay clipping scales
Device type: 171
Supported sizes: 48x32 => 768x480
Inputs: 4
0: Composite0: audio camera (tuner:0, norm:ntsc)
1: Composite1: audio camera (tuner:0, norm:ntsc)
2: Composite2: audio camera (tuner:0, norm:ntsc)
3: Composite3: audio camera (tuner:0, norm:ntsc)
Using input 'Composite3'
Selected input hasn't got a tuner!
SDL: Using driver: x11
Xlib: extension "XFree86-VidModeExtension" missing on display ":1.0".
vo: X11 running at 1024x768 with depth 16 and 16 bpp (":1.0" => local
display)
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 352 x 240 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [sdl] 352x240 => 352x240 Planar YV12
Selected video codec: [rawyv12] vfm:raw (RAW YV12)
==========================================================================
Any suggestions would be appreciated!
- Mike
A really late reply, but I am trying to get through all this mail after
a holiday. I am not a big expert at this but I don't see anything wrong,
looks like the card is detected properly and that is normally the
biggest problem. maybe try using xawtv to view the feed, I find it
easier than mplayer. Dag Wieers had packages for xawtv for FC3 otherwise
check rpm.pbone.net and you should find sthng
Serge
