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The Grabber object corresponds to the Video Capture Devicecapture device system object.

The Grabber object sends events presented in the table. Procedure is started when the corresponding event appears.

Format of events procedure for the video capture device:

Code Block
OnEvent("GRABBER","_id_","_event_")

occurs.

Description of events of the the Grabber object.

Event

Events	Description

"

+12V

"

Voltage error +12V

.

"

+3.3V

"

Voltage error +3.3V

.

"

+5V

"

Voltage error +5V

.

"

-12V

"

Voltage error -12V

.

"

-5V

"

Voltage error -5V

.

"

CPU_FAN

"

Number of

ventilator

fan rotations

.

"

CPU_TEMP

"

Temperature of processor

.

"

SYS_TEMP

"

Temperature of MB chipset

.

"

UPS_COMMLOST

"

Connection lost

.

"

UPS_FATAL_ERROR

"

Error of connection

.

"

UPS_LOWBATT

"

Battery low

.

"

UPS_ONBATT

"

Switch to battery supply

.

"

UPS_ONLINE

"

Restoring the main supply

.

"

UPS_REPLACEBATT

"

Battery changing is required

.

"

UPS_SHUTTING

"

Shutdown

.

"

VCORE

"

Voltage of processor core

.

"

AUDIO_SIG_LOST

"

Sound lost

"

CONNECT_FAIL

"

Connection error

"

CONNECT_OK

"

Connected

"

NETWORK_FAILURE

"

Connection lost

"

STATE_CONNECTED

"

Connection restored

Operator format to describe actions with the video capture device is:

...

List of commands and parameters for the the Grabber object is presented in the following table:

Command

–

—command description	Parameters	Description of parameters
"SETUP"

–

—sets parameters of video capture device

.

	chan<>	Number of PCI slot (0,1,2,…,32).
	mode<>	Speed of grabber/digitising (0

–

—maximal, 1

–

—average, 2

–

—minimal)

.


resolution<>	Resolution (

0–

0—standard, frame quarter (384x288); 1

–

—high, half-frame (768x288); 2

– maximal

—maximum, frame (768x576))

.


format<>	Format of video signal (PAL, NTSC)

.


drives<>	Disks for video archive record (DRIVE1:\, DRIVE2:\ … DRIVEN:\)

.


cams<>	Number of connected video cameras
auth<>	Authorization data
ip<>	IP

-

address of network video input

network

card
name<>	Name of object

.


flags <>	Flags

.


ip_port<>	IP

-

port

.


password<>	Password

.


type<>	Type of digitising

.


username<>	Login

.


watchdog<>	WatchDog shutdown (0

–disabled

—disabled, 1

–

—enabled)

.

"SET_DRIVES"

–

—sets disks for video archive record

.

drives<>

Disks for video archive record

.

"MUX1_OFF"

–

—disables video output through the analog output 1

.

	-	-
"MUX2_OFF"

-

—disables video output through the analog output 2

.

	-	-
"MUX3_OFF"

-

—disables video output through the analog output 3

.

	-	-
"SET_IPINT_PARAM"

– Sets

—sets (

change

changes) parameters of an IP

-

device. Reaction allows changing of IP

-

device settings

not entering

wothout doing into its web

-

interface.

Note. For the reaction

operation it is required to enable the mode of multi-flow video signal - see. Administrator's Guide, section

to operate you must enable the multistream video—Configuration of multistream video, and Appendix 2. Defining the param_id and param_value values for the SET_IPINT_PARAM reaction

param_id<>

Name of parameter. Set of parameters for each camera is individual

- see

—see Appendix 2. Defining the param_id and param_value values for the SET_IPINT_PARAM reaction
param_value<>	Value of parameter. Set of parameters for each camera is individual

- see

—see Appendix 2. Defining the param_id and param_value values for the SET_IPINT_PARAM reaction
cam_id<>	Camera ID in

the

Axxon PSIM

software package.


vstream_id<>	Number of video

-flow

stream (optional parameter).

Is given by

It looks like “Number of camera”.”Number of

flow”

stream”, for example, 1.1, 1.2

.

"START"

–

—start playing video file in a virtual video capture device

.

	-	-
"STOP"

– stop

—stop playing video file in a virtual video capture device

.

	-	-
"ENABLE"

–

—enable object (

uncheck

clear the Disable

box

checkbox in the object settings panel)

recursive<>

Possible parameter values:

0 –

0—enable only Video capture device

1 –

1—enable the Video capture device and all Camera objects created

under

on the basis of it

"DISABLE"

– disable

—disable object (

check

clear the Disable

box

checkbox in the object settings panel)

recursive<>

Possible parameter values:

0 –

0—disable only Video capture device

1 –

1—disable the Video capture device and all Camera objects created

under

on the basis of it

Properties of the GRABBER object are shown in the table.

Properties of the GRABBER object	Description of properties
ID<>	Object ID.
PARENT_ID<>	Number of video capture device.

Examples of using events and reactions of the Video capture Device object:

It is required to set the first channel for the first video capture device, maximal speed of digitizing, resolution is half-frame and PAL format while starting the first macro.

Code Block

OnEvent("MACRO","1","RUN") // start macro 1
{
 DoReact("GRABBER","1", "SETUP", "chan<1>,mode<0>,resolution<1>,format<PAL>");
 //set channel 1 for the first video capture device, speed of digitizing is maximal, resolution is half-frame, format is PAL
}

Info

title	Note.

Description of the MACRO object is follows (see the MACRO section).

Set disks D:\ and F:\ for video archive record while starting the third macro.

Code Block
OnEvent("MACRO","3","RUN") //start macro 3 { DoReact("GRABBER","1","SET_DRIVES","drives<D:\,F:\>"); //record the video archive on disks D:\ and F:\ }

It is required to display the first video camera on the first analog output and disable first analog outputs of the first and second cards while error of connection to the second video capture device.

Code Block

OnEvent("GRABBER","2"," UPS_FATAL_ERROR") //error of connection to the video capture device 2
{
 DoReact("CAM","1","MUX1"); //display video camera 1 on the 1-st analog output of card
 Wait(5);
 DoReact("GRABBER","1","MUX1_OFF"); //disable 1-st analog output of the first card
 DoReact("GRABBER","2","MUX1_OFF"); //disable 1-st analog output of the second card
}

Info

title	Note.

If analog outputs of two or more cards are connected in parallel and video camera 1 belongs to the first grabber and video camera2 belongs to the second grabber than while triggering the «DoReact("CAM","1","MUX1");» command it is required to trigger the «DoReact("GRABBER","2","MUX1_OFF");» command at first, and correspondingly while triggering the «DoReact("CAM","2","MUX1");» command it is required to trigger the «DoReact("GRABBER","1","MUX1_OFF");» command at first. Otherwise signal overlaying will happened.

...

title	Note.

...

of

...

video capture device

...

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