PTZ and Control Messages

• Initial Implementation: NewTek

• Location: Sent via SDK API calls, received as Metadata frames

<ntk_ptz_zoom> Element

Set zoom to an absolute value: NDIlib_recv_ptz_zoom()

<ntk_ptz_zoom zoom="0.185000"/>

<ntk_ptz_zoom> Attributes

Attribute	Description
zoom	Absolute value for zoom: 0.0 (zoomed in) to 1.0 (zoomed out)

<ntk_ptz_zoom_speed> Element

Zoom at a particular speed: NDIlib_recv_ptz_zoom_speed()

<ntk_ptz_zoom_speed zoom_speed="0.005000"/>

<ntk_ptz_zoom_speed> Attributes

Attribute	Description
zoom_speed	Zoom speed: -1.0 (zoom outwards) to +1.0 (zoom inwards)

<ntk_ptz_pan_tilt> Element

Set the pan and tilt to an absolute value: NDIlib_recv_ptz_pan_tilt()

<ntk_ptz_pan_tilt pan="0.015000" tilt="-0.015000"/>

<ntk_ptz_pan_tilt> Attributes

Attribute	Description
pan	Pan location: -1.0 (left) to 0.0 (centered) to +1.0 (right)
tilt	Tilt location: -1.0 (bottom) to 0.0 (centered) to +1.0 (top)

<ntk_ptz_pan_tilt_speed> Element

Pan and tilt at a particular speed: NDIlib_recv_ptz_pan_tilt_speed()

<ntk_ptz_pan_tilt_speed pan_speed="0.015000" tilt_speed="-0.015000"/>

<ntk_ptz_pan_tilt_speed> Attributes

Attribute	Description
pan_speed	Pan speed: -1.0 (pan right) to 0.0 (stopped) to +1.0 (pan left)
tilt_speed	Tilt speed: -1.0 (tilt down) to 0.0 (stopped) to +1.0 (tilt up)

<ntk_ptz_focus> Element

Set focus mode and distance:

• NDIlib_recv_ptz_auto_focus()

• NDIlib_recv_ptz_focus()

• NDIlib_recv_ptz_focus_speed()

<ntk_ptz_focus mode="auto"/>
<ntk_ptz_focus mode="manual" distance="0.485000"/>

<ntk_ptz_focus> Attributes

Attribute	Description
mode	Sets focus mode: "manual" or "auto"
distance	Focus distance: 0.0 (infinity) to 1.0 (focused as close as possible). Optional, only valid when mode="manual"

<ntk_ptz_recall_preset> Element

Recall settings from a particular preset: NDIlib_recv_ptz_recall_preset()

<ntk_ptz_recall_preset index="1"/>
<ntk_ptz_recall_preset index="2" speed="0.5"/>

<ntk_ptz_recall_preset> Attributes

Attribute	Description
index	The preset index to recall: 0 to 99
speed	How fast to move to the new preset: 0.0 (slowest) to 1.0 (fastest). Optional, should default to 1.0 (fastest) if not specified

<ntk_ptz_store_preset> Element

Store current settings to a particular preset: NDIlib_recv_ptz_store_preset()

<ntk_ptz_store_preset index="2"/>

<ntk_ptz_store_preset> Attributes

Attribute	Description
index	The preset index to store: 0 to 99

<ntk_ptz_white_balance> Element

Sets the white balance:

• NDIlib_recv_ptz_white_balance_auto()

• NDIlib_recv_ptz_white_balance_indoor()

• NDIlib_recv_ptz_white_balance_outdoor()

• NDIlib_recv_ptz_white_balance_oneshot()

• NDIlib_recv_ptz_white_balance_manual()

<ntk_ptz_white_balance mode="auto"/>
<ntk_ptz_white_balance mode="manual" red="0.5" blue="0.5"/>

<ntk_ptz_white_balance> Attributes

Attribute	Description
mode	White balance mode:auto, indoor, outdoor, one_shot, or manual one_shot (one_push?) locks the current white balance setting
red	Manual red value: 0.0 (not red) to 1.0 (very red). Only present when mode="manual"
blue	Manual blue value: 0.0 (not blue) to 1.0 (very blue). Only present when mode="manual"

<ntk_ptz_exposure> Element

Sets the exposure settings:

• NDIlib_recv_ptz_exposure_auto()

• NDIlib_recv_ptz_exposure_manual()

• NDIlib_recv_ptz_exposure_manual_v2()

<ntk_ptz_exposure mode="auto"/>
<ntk_ptz_exposure mode="manual" value="0.5"/>
<ntk_ptz_exposure mode="manual" value="0.5" gain="0.75" shutter="0.8"/>

<ntk_ptz_exposure> Attributes

Attribute	Description
mode	Exposure mode: auto or manual
value	Iris setting: 0.0 (dark) to 1.0 (light). Only valid when mode="manual"
gain	Gain setting: 0.0 (dark) to 1.0 (light). Only valid when mode="manual"
shutter	Shutter speed: 0.0 (slow) to 1.0 (fast). Only valid when mode="manual"