AVG_SHOWCAMERA(1) User Commands AVG_SHOWCAMERA(1)NAME
avg_showcamera - camera discovery and display tool
avg_showcamera -t DRIVER [OPTION]...
Query and list attached cameras, reset firewire bus, show video stream.
OPTIONS -h, --help
Show a brief description of the options.
Dump a list of available cameras to the console.
Reset the firewire bus and free allocated bandwidth.
-t, --driver DRIVER
One of the camera subsystems supported by libavg (supported: firewire, video4linux, directshow).
-d, --device DEVICE
Camera device identifier (depending on the driver, a GUID or device path is expected).
-u, --unit UNIT
Unit number. Used for cameras or other capture devices which deliver several images (e.g. stereo cameras or TV capture cards).
-w, --width WIDTH
Camera image width.
-e, --height HEIGHT
Camera image height.
-p, --pixelformat PIXELFORMAT
Camera pixel format (one of: I8, I16, YUV411, YUV422, YUYV422, RGB, BGR, BAYER8).
-f, --framerate FRAMERATE
Frames per second.
Set firewire bus speed to s800 (if supported).
Don't show any info overlayed on the screen.
Ulrich von Zadow <firstname.lastname@example.org>
libavg 1.7.0 November 2011 AVG_SHOWCAMERA(1)
Check Out this Related Man Page
FIREWIRE(4) BSD Kernel Interfaces Manual FIREWIRE(4)NAME
firewire -- IEEE1394 High-performance Serial Bus
To compile this driver into the kernel, place the following line in your kernel configuration file:
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
FreeBSD provides machine-independent bus support and raw drivers for firewire interfaces.
The firewire driver consists of two layers: the controller and the bus layer. The controller attaches to a physical bus (like pci(4)). The
firewire bus attaches to the controller. Additional drivers can be attached to the bus.
Up to 63 devices, including the host itself, can be attached to a firewire bus. The root node is dynamically assigned with a PHY device
function. Also, the other firewire bus specific parameters, e.g., node ID, cycle master, isochronous resource manager and bus manager, are
dynamically assigned, after bus reset is initiated. On the firewire bus, every device is identified by an EUI 64 address.
SEE ALSO fwe(4), fwip(4), fwohci(4), pci(4), sbp(4), eui64(5), fwcontrol(8), kldload(8), sysctl(8)HISTORY
The firewire driver first appeared in FreeBSD 5.0.
The firewire driver was written by Katsushi Kobayashi and Hidetoshi Shimokawa for the FreeBSD project.
See fwohci(4) for security notes.
BSD April 1, 2006 BSD
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