Documentation for Intellect 4.11.0-4.11.3. Documentation for other versions of Intellect is available too.

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The CAM object corresponds to the Camera system object.

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

Format of event procedure for the Camera object:

OnEvent("CAM","_id_","_event_")

Description of events of the CAM object.

Events

Description

Comment

"ARM"

Camera is armed.

 

"ATTACH"

Connecting.

 

"BLINDING"

Camera is sealed.

 

"DETACH"

Break.

Event is generated while loss the input signal from camera on video capture device.

"DISARM"

Camera is disarmed.

 

"FILE_REC_ERROR"

Error of recording on disk.

Event is generated while error of video archive recording on disk is happened.

"MD_START"

Alarm.

 

"MD_STOP"

End of alarm.

 

"PRINT"

Print frame.

 

"REC"

Record on disk.

 

"REC_STOP"

Stop recording on disk.

 

"UNBLINDING"

Camera is opened.

 

"RECORDER_ON"

Record is enabled.

 

"RECORDER_OFF"

Record is disabled.

 

"DISC_MOUNT"

Disk is mounted.

 

"DISC_UNMOUNT"

Disk is unmounted.

 

"FINISHED_AVI_EXPORT"

Video export is completed

If the video export is failed the event has nonnull error_result parameter

Operator format to describe actions with the camera is:

DoReact("CAM","_id_","_command_" [,"_parameters_"]);

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

Command – command description

Parameters

Description of parameters

"SETUP" – sets (changes) parameters of camera

rec_priority<>

Record priority (from 0 to 3, 0 – standard, 3 – all recources).

compression<>

Compression ration (0 – no compression, 1- maximal quility, …, 5 – minimal quality).

sat_u<>

Value of colour (0 – min, 10 – max).

proc_time<>

Append period (0 – 30 sec).

manual<>

Control brightness and contrast settings (0 – manual; 1 – auto; 2 – auto, but close to values specified manually).

contrast<>

Contrast (0 – min, 10 – max).

md_size<>

Size of motion detection objects (1 -16).

md_mode<>

Mode of pause record (1 – enabled, 0 disabled).

audio_type<>

Type of sound accompaniment.

pre_rec_time<>

Time of pre-record  (0 – 20 sec).

bright<>

Brightness (0 – min, 10 – max).

audio_id<>

Number of microphone (empty parameter if there is no microphone).

rec_time<>

Record speed (1 – 30 fps, 0 – not used).

alarm_rec<>

Record of alarms (1 – enabled, 0 – disabled).

hot_rec_time<>

Time of hot record (0 – 30 sec).

hot_rec_period<>

Period of hot (0 – 20 sec).

mux<>

Number of channel (0 – 1 channel, 15 – 16 channel).

color<>

Colour (0 – black and white, 1 – multicolor).

activity<>

-

arch_days<>

Number of archive days.

blinding<>

Camera is sealed.

config_id<>

-

decoder<>

-

flags<>

Flags.

fps<>

Speed of record (0 – not used, 1 – 30 fps).

ifreq<>

Frequency of anchor frames in sequence (1 – each frame is anchor, 2 – 100 frame).

mask 0, mask1, mask2, mask3, mask4

Detection mask.

md_contrast<>

Sensibility of motion detection (0 – 15).

motion<>

Estimation of motion compressor (5 - 255).

name<>

Name of object.

password_crc<>

Password for video archive.

priority<>

Priority of record resource (0 – auto, 1 – manual).

resolution<>

Resolution (0 – standard CIF, 1 - high 2CIF, 2 –maximal 4CIF).

type<>

Type of object.

yuv<>

Colour schema of video signal coding (0 – YUV4:2:0, 1 -  YUV4:2:2).

"DELETE" – disables camera.

-

-

"START_VIDEO" – enables video flow for current camera.

slave_id<>

Name of computer to which camera is connected.

comress<>

Value of compression.

register_only<>

-

"STOP_VIDEO" – disables video flow for current camera.

slave_id<>

Name of computer to which camera is connected.

"REQUEST_MASK"

mask<>

Mask.

"MUX1", "MUX2", "MUX3" – display image of camera on 1, 2, 3 analog outputs.

-

-

"ACTIVATE" – display camera on monitor.

monitor<>

Number of monitor.

"ARM" – arm camera.

-

-

"DISARM" – disarm camera.

-

-

"REC" – start record from camera.

time<>

Time of record in seconds, if null than only one frame is recorded.

rollback<>

If one, than record is performed with rollback.

priority<>

Set priority of command to start record. See Appendix 1. Priorities of start and stop recording commands

stream_id<>

Set an identification number of stream for record. Stream ID is set as "n.m" where n is the Camera object ID, m is the number of the stream.

Note. If the specified stream is not in use for any purpose other than record by command (and custom on clients), make sure that the Lock disabling streams not in use checkbox is set checked for it – see the The Settings panel of the Camera object section of the Administrator's Guide.

"REC_STOP" – stop record from camera.

priority<>

Set priority of command to stop record. See Appendix 1. Priorities of start and stop recording commands

"SET_MASK" – set mask.

mask<>

Mask.

"ADD_SUBTITLES" – add titles.

command<>

Test of imposed titles.

title_id<>

ID of Captioner object which is used to impose.

page<>

Parameter allows record titles to the titles database to provide search by titles. Available values: BEGIN (start of record in database), END (end of record in database).

"SIP_CONNECT"  - Sip connected

-

-

"SIP_DISCONNECT" – Sip disconnected

-

-

"SET_IPINT_PARAM" – Set (change) parameters of IP-device. Reaction allows changing of IP-device settings not entering its web-interface.

Note. For reaction operation it is required to enable the mode of multi-flow video signal - see. Administrator's Guide, section Configuration of multistream video, and Appendix 2. Defining param_id and param_value values for SET_IPINT_PARAM reaction

param_id<>

Name of parameter. Set of parameters for each camera is individual - see Appendix 2. Defining param_id and param_value values for SET_IPINT_PARAM reaction

param_value<>

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

vstream_id<>

Number of video flow (optional parameter). Is given by “Number of camera”.”Number of flow”, for example 1.1, 1.2.

GET_FRAME – get frame from camera even if it is not displayed in the Video surveillance monitor.

path<>

Path to save frame. If there is no parameter than the FRAME_SENT event with the data parameter will be formed in the system. Processing of this event is described in the section The SaveToFile method of the Programming Guide (JScript).

 

Properties of the CAM object are shown in the table.

Properties of the CAMobject

Description of properties

ID<>

Object ID.

PARENT_ID<>

Parent object ID.

TELEMETRY_ID<>

Telemetry module ID (ID of ptz)

REGION_ID<>

Region ID

 

Examples of using events and reactions of the Camera object:

  1. Switch camera to the colored mode and start record from it while arming the first camera.

    OnEvent("CAM","1","ARM") //first video camera is armed
{
    DoReact("CAM","1","SETUP","color<1>"); // set colored mode of video camera
    DoReact("CAM","1","REC"); //record from the first camera
}

  2. Arm the first video camera while disabling the fifth video camera.

    OnEvent("CAM","5","DETACH") // fifth video camera is disabled
{
    DoReact("CAM","1","ARM"); //first video camera is armed
}

  3. Use half of resources while recording from the first camera (i.e. if 4 video cameras are connected through the first video capture device than the first camera will record with speed 6 fps, and other three cameras – with speed 2-2,5 fps) if it is in alarm state.

    OnEvent("CAM","1","MD_START") //first video camera is in alarm state
{
    DoReact("CAM","1","SETUP","rec_priority<2>"); // use half of resources while recording
}

  4. Set maximal compression synchronously with the fourth microphone of audio card on the first video camera while recording from the first video camera on disk.

    OnEvent("CAM","1","REC") //first video camera recording on disk
{
    DoReact("CAM","1", "SETUP", "compression<5>, audio_type<OLXA_LINE>, audio_id<4>"); //first video camera, maximal compression, synchronously with forth microphone of audio card.

  5. Start record from the first camera with minimal quality in black and white mode when it stopped to be in alarm.

    OnEvent("CAM","1","MD_STOP") // first camera stopped to be in alarm state
{
    value = 5;
    DoReact("CAM", "1", "SETUP", "compression<" + value + ">,сolor<0>");
    //start record from the first video camera with minimal quality in black and white mode.
}

  6. Start record from the first camera in the “rollback” mode when it disarmed.

    OnEvent("CAM","1","DISARM")  //first video camera is disarmed
{
    DoReact("CAM","1","REC","rollback<1>");  // Start record from the first video camera in the "rollback" mode
}

  7. Set new parameters of video signal while connecting the first video camera.

    OnEvent("CAM","1","ATTACH") //first video camera is connected
{
    VIDEO_CANAL_ID = GETOBJECTPARAM("CAM","1","PARENT_ID"); // define ID of video channel to which the first camera belongs
    DoReact("GRABBER",VIDEO_CANAL_ID,"SETUP","chan<0>,mode<0>,resolution<1>,format<pal>"); //set new parameters of video channel.
}

  8. Start autopanning on Camera 1 when Macro 2 is run.

    OnEvent ("MACRO","2","RUN")
{
    DoReact("CAM","1","CRUISE_START","cruise_id<1>,action<CRUISE_START>,cam_id<1>");
}

Check function of CAM object state:

CheckState("CAM","number","state")

The CAM object can be in the following states.

State of «CAM» object

Description

"ALARMED"

Camera is in alarm mode.

"DISARM_DETACHED"

No signal from camera.

"DETACHED"

No signal from camera.

"ARMED"

Camera is armed.

"DISARMED"

Camera is disarmed.

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