vlinfo(1)vlinfo(1)NAMEvlinfo - Video Library path, node and control info tool
SYNOPSISvlinfo [-l] [-b] [-n <node name>] [-c <control name>]
PARAMETERS-l List voluminous info about all controls on all nodes.
-b List the info in brief format. (Implies -l ).
-n <node name>
Uses case-insensitve search on first part of node names to specify
which nodes to list information about.
-c <control name>
Uses case-insensitve search on first part of control names to
specify which controls to list information about. (Used with the
'-l' option).
DESCRIPTIONvlinfo simply connects to the video daemon on the default server and
prints out info about the devices on the server.
% vlinfo
name of server:
number of devices on server: 2
device: vino 0
extensions = EXT_camera
nodes = 5
VINO Device, type = Device, kind = 0, number = 0
Digital Source, type = Source, kind = Video, number = 0
Analog Source, type = Source, kind = Video, number = 1
Memory Drain 0, type = Drain, kind = Memory, number = 0
Memory Drain 1, type = Drain, kind = Memory, number = 1
device: ev1 1
extensions =
nodes = 14
Device Controls, type = Device, kind = 0, number = 0
Analog Video Input, type = Source, kind = Video, number = 0
Analog Video Output, type = Drain, kind = Video, number = 0
Digital Video Source 1, type = Source, kind = Video, number = 1
Digital Video Source 2, type = Source, kind = Video, number = 2
Digital Video, type = Drain, kind = Video, number = 1
Memory Source, type = Source, kind = Memory, number = 0
Memory Drain, type = Drain, kind = Memory, number = 0
Screen Source A, type = Source, kind = Screen, number = 0
Screen Source B, type = Source, kind = Screen, number = 1
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vlinfo(1)vlinfo(1)
Screen Drain A, type = Drain, kind = Screen, number = 0
Screen Drain B, type = Drain, kind = Screen, number = 1
Screen Drain C, type = Drain, kind = Screen, number = 2
Blend/Wipe Node, type = Internal, kind = Blender, number = 0
The example above shows that on the default server there are 2 devices.
Device 0, a VINO video board, has 5 nodes: 2 sources, 2 drains and 1
device node. This device supports the EXT_camera VL extension. Device
1, an EV1 video board, has 14 nodes: 6 sources, 6 drains, 1 device node
and 1 internal node. This device supports no VL extensions. This
information can be used in the vlGetNode function to choose a specific
node to be added to a path.
If -l is specified, the application lists all the controls available on
the system's video devices.
Each control's name, type, class, group, related node, value type, value
count, and associated range is listed. The listing is shortened when the
-b option is used.
With the -n and -c options you can select which nodes and/or controls you
want to list:
vlinfo-b -n memory -c packing
SEE ALSOvlcmd(1), vlGetNode(3v)
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