An interface to control video and manage cameras during a video session. More...

#include <ZMVideoSDKVideoHelper.h>

Inherits NSObject.

Instance Methods
(ZMVideoSDKErrors)	- startVideo
	Call this method to start sending local video data from the camera.

(ZMVideoSDKErrors)	- stopVideo
	Call this method to stop sending local video data from the camera.

(BOOL)	- rotateMyVideo:
	Call this method to rotate the video when the device is rotated.

(BOOL)	- switchCamera
	Switch to the next available camera.

(BOOL)	- selectCamera:
	Switch to the camera passed in as cameraDevice.

(unsigned int)	- getNumberOfCameras
	Returns number of cameras available to share the video.

(NSArray< ZMVideoSDKCameraDevice * > *_Nullable)	- getCameraList
	Returns a collection of camera devices available to share the video as an object of ZMVideoSDKCameraDevice.

(ZMVideoSDKErrors)	- canControlCamera:deviceID:
	Check whether the current user has permission to control the camera.

(ZMVideoSDKErrors)	- turnCameraLeft:deviceID:
	Pan the camera to the left.

(ZMVideoSDKErrors)	- turnCameraRight:deviceID:
	Pan the camera to the right.

(ZMVideoSDKErrors)	- turnCameraUp:deviceID:
	Tilt the camera up.

(ZMVideoSDKErrors)	- turnCameraDown:deviceID:
	Tilt the camera down.

(ZMVideoSDKErrors)	- zoomCameraIn:deviceID:
	Zoom the camera in.

(ZMVideoSDKErrors)	- zoomCameraOut:deviceID:
	Zoom the camera out.

(ZMVideoSDKErrors)	- setVideoQualityPreference:
	Adjust user's video solution and frame-rate.

(BOOL)	- enableMultiStreamVideo:customDeviceName:
	Enable multiple stream video if you have multiple cameras, and other participants can see multiple videos of you.

(BOOL)	- disableMultiStreamVideo:
	Disable multiple stream video.

(BOOL)	- muteMultiStreamVideo:
	Turn off multiple stream video.

(BOOL)	- unmuteMultiStreamVideo:
	Turn on multiple stream video.

(NSString *_Nullable)	- getDeviceIDByMyPipe:
	Get the device ID associated with my multi-camera pipe.

(ZMVideoSDKErrors)	- startVideoPreview:deviceID:
	Subscribe preview video raw data with a callback.

(ZMVideoSDKErrors)	- startVideoPreview:deviceID:resolution:
	Subscribe to preview video raw data with a callback.

(ZMVideoSDKErrors)	- stopVideoPreview:
	UnSubscribe preview video raw data with the subscribed callback.

(ZMVideoSDKErrors)	- startVideoCanvasPreview:deviceID:
	Starts the preview video with a view.

(ZMVideoSDKErrors)	- stopVideoCanvasPreview:
	Stops the preview video.

(ZMVideoSDKErrors)	- addVirtualBackgroundItem:imageItem:
	Add virtual background object.

(ZMVideoSDKErrors)	- removeVirtualBackgroundItem:
	Remove virtual background object.

(NSArray< ZMVideoSDKVirtualBackgroundItem * > *_Nullable)	- getVirtualBackgroundItemList
	Returns a collection of virtual background item as an object of ZMVideoSDKVirtualBackgroundItem.

(ZMVideoSDKErrors)	- setVirtualBackgroundItem:
	Select virtual background item.

(ZMVideoSDKVirtualBackgroundItem *_Nullable)	- getSelectedVirtualBackgroundItem
	Get a selected virtual background item.

(BOOL)	- isOriginalAspectRatioEnabled
	Determine whether current aspect ratio is the original aspect ratio of video.

(BOOL)	- enableOriginalAspectRatio:
	Set the aspect ratio of the video sent out.

(ZMVideoSDKErrors)	- mirrorMyVideo:
	Mirrors the current user's video. Valid only for canvas.

(BOOL)	- isMyVideoMirrored
	Determine whether mirror my video is enabled.

(BOOL)	- isDeviceSupportAlphaChannelMode
	Determine if the current device supports alpha channel mode.

(BOOL)	- canEnableAlphaChannelMode
	Determine if alpha channel mode can be enabled.

(ZMVideoSDKErrors)	- enableAlphaChannelMode:
	Enable or disable alpha channel mode.

(BOOL)	- isAlphaChannelModeEnabled
	Determine if alpha channel mode is enabled.

(ZMVideoSDKErrors)	- spotLightVideo:
	Call this method to spotlight user's video.

(ZMVideoSDKErrors)	- unSpotLightVideo:
	Call this method to unSpotlight user's video.

(ZMVideoSDKErrors)	- unSpotlightAllVideos
	Call this method to set all user's video unSpotlight.

(NSArray< ZMVideoSDKUser * > *_Nullable)	- getSpotlightedVideoUserList
	Enable or disable alpha channel mode.

Detailed Description

An interface to control video and manage cameras during a video session.

Definition at line 100 of file ZMVideoSDKVideoHelper.h.

Method Documentation

◆ addVirtualBackgroundItem:imageItem:

- (ZMVideoSDKErrors) addVirtualBackgroundItem:		(NSString *)	imagePath
imageItem:		(ZMVideoSDKVirtualBackgroundItem _Nullable _Nonnull)	imageItem

Add virtual background object.

Parameters

imagePath	The path of image.
imageItem	An object of ZMVideoSDKVirtualBackgroundItem. Once the function is called successfully, this parameter will store the pointer to the ZMVideoSDKVirtualBackgroundItem*.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ canControlCamera:deviceID:

- (ZMVideoSDKErrors) canControlCamera:		(BOOL *)	canControl
deviceID:		(nullable NSString *)	deviceID

Check whether the current user has permission to control the camera.

Parameters

canControl	The output parameter. YES means can control local camera, otherwise not.
deviceID	The camera device ID to check. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ canEnableAlphaChannelMode

- (BOOL) canEnableAlphaChannelMode

Determine if alpha channel mode can be enabled.

Returns: YES means it can be enabled. Otherwise NO.

◆ disableMultiStreamVideo:

- (BOOL) disableMultiStreamVideo: (NSString *) cameraDeviceID

Disable multiple stream video.

Parameters

cameraDeviceID The camera id which you want to disable.

Returns: If the function succeeds, it will return YES, otherwise returns NO.

◆ enableAlphaChannelMode:

- (ZMVideoSDKErrors) enableAlphaChannelMode: (BOOL) enabled

Enable or disable alpha channel mode.

Parameters

enabled YES indicates to enable alpha channel mode. Otherwise, disable it.

Returns: If the function succeeds, the return value is ZMVideoSDKErrors_Success.

◆ enableMultiStreamVideo:customDeviceName:

- (BOOL) enableMultiStreamVideo:		(NSString *)	cameraDeviceID
customDeviceName:		(nullable NSString *)	customDeviceName

Enable multiple stream video if you have multiple cameras, and other participants can see multiple videos of you.

Parameters

cameraDeviceID	The camera ID for the camera to enable.
customDeviceName	The custom device name of the camera. If this parameter is not passed, a default name will be generated.

Returns: If the function succeeds, it will return YES, otherwise returns NO.

◆ enableOriginalAspectRatio:

- (BOOL) enableOriginalAspectRatio: (BOOL) bEnabled

Set the aspect ratio of the video sent out.

Parameters

bEnabled NO means the aspect ratio is 16:9, YES means that using the original aspect ratio of video.

Returns: If the function succeeds, it will return YES.

Note: If session is using video source and data_mode is not VideoSourceDataMode_None, default always use original aspect ration of video.

◆ getCameraList

- (NSArray< ZMVideoSDKCameraDevice * > *_Nullable) getCameraList

Returns a collection of camera devices available to share the video as an object of ZMVideoSDKCameraDevice.

Returns: Camera devices list.

◆ getDeviceIDByMyPipe:

- (NSString *_Nullable) getDeviceIDByMyPipe: (ZMVideoSDKRawDataPipe *) pipe

Get the device ID associated with my multi-camera pipe.

Parameters

pipe	My multi-camera pipe.

Returns: The video device ID if successful. Otherwise returns nil.

◆ getNumberOfCameras

- (unsigned int) getNumberOfCameras

Returns number of cameras available to share the video.

Returns: The count of cameras.

◆ getSelectedVirtualBackgroundItem

- (ZMVideoSDKVirtualBackgroundItem *_Nullable) getSelectedVirtualBackgroundItem

Get a selected virtual background item.

Returns: If the function succeeds, it will return the object of ZMVideoSDKVirtualBackgroundItem.

◆ getSpotlightedVideoUserList

- (NSArray< ZMVideoSDKUser * > *_Nullable) getSpotlightedVideoUserList

Enable or disable alpha channel mode.

Returns: If the function succeeds, the return value is ZMVideoSDKUser object list.

◆ getVirtualBackgroundItemList

- (NSArray< ZMVideoSDKVirtualBackgroundItem * > *_Nullable) getVirtualBackgroundItemList

Returns a collection of virtual background item as an object of ZMVideoSDKVirtualBackgroundItem.

Returns: If the function succeeds, it will return a list of virtual background items.

◆ isAlphaChannelModeEnabled

- (BOOL) isAlphaChannelModeEnabled

Determine if alpha channel mode is enabled.

Returns: YES indicates is in alpha channel mode. Otherwise NO.

◆ isDeviceSupportAlphaChannelMode

- (BOOL) isDeviceSupportAlphaChannelMode

Determine if the current device supports alpha channel mode.

Returns: YES indicates that the current device supports alpha channel mode, Otherwise it does not.

◆ isMyVideoMirrored

- (BOOL) isMyVideoMirrored

Determine whether mirror my video is enabled.

Returns: YES if mirror my video is enabled, otherwise NO.

◆ isOriginalAspectRatioEnabled

- (BOOL) isOriginalAspectRatioEnabled

Determine whether current aspect ratio is the original aspect ratio of video.

Returns: YES if is original aspect ratio, otherwise NO.

◆ mirrorMyVideo:

- (ZMVideoSDKErrors) mirrorMyVideo: (BOOL) bEnabled

Mirrors the current user's video. Valid only for canvas.

Parameters

bEnabled YES to enable mirror my video.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ muteMultiStreamVideo:

- (BOOL) muteMultiStreamVideo: (NSString *) cameraDeviceID

Turn off multiple stream video.

Parameters

cameraDeviceID The camera ID which is running as multiple camera.

Returns: If the function succeeds, it will return YES, otherwise returns NO.

◆ removeVirtualBackgroundItem:

- (ZMVideoSDKErrors) removeVirtualBackgroundItem: (ZMVideoSDKVirtualBackgroundItem *) imageItem

Remove virtual background object.

Parameters

imageItem The ZMVideoSDKVirtualBackgroundItem object to be removed.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ rotateMyVideo:

- (BOOL) rotateMyVideo: (ZMVideoRotation) rotation

Call this method to rotate the video when the device is rotated.

Parameters

rotation It is emum.

Returns: YES means the function is success, otherwise not.

◆ selectCamera:

- (BOOL) selectCamera: (NSString *) cameraDeviceID

Switch to the camera passed in as cameraDevice.

Parameters

cameraDeviceID The id of camera.

Returns: YES means the function is success, otherwise not.

◆ setVideoQualityPreference:

- (ZMVideoSDKErrors) setVideoQualityPreference: (ZMVideoSDKPreferenceSetting *) preferenceSetting

Adjust user's video solution and frame-rate.

Parameters

preferenceSetting An instance of ZMVideoSDKPreferenceSetting.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ setVirtualBackgroundItem:

- (ZMVideoSDKErrors) setVirtualBackgroundItem: (ZMVideoSDKVirtualBackgroundItem *) imageItem

Select virtual background item.

Parameters

imageItem The ZMVideoSDKVirtualBackgroundItem object to select.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ spotLightVideo:

- (ZMVideoSDKErrors) spotLightVideo: (ZMVideoSDKUser *) user

Call this method to spotlight user's video.

Parameters

user	Which you want to spotlight video.

Returns: If the function succeeds, the return value is ZMVideoSDKErrors_Success.

◆ startVideo

- (ZMVideoSDKErrors) startVideo

Call this method to start sending local video data from the camera.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ startVideoCanvasPreview:deviceID:

- (ZMVideoSDKErrors) startVideoCanvasPreview:		(NSView *)	view
deviceID:		(NSString *_Nullable)	cameraDeviceID

Starts the preview video with a view.

Parameters

view	The view to preview video.
cameraDeviceID	The camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ startVideoPreview:deviceID:

- (ZMVideoSDKErrors) startVideoPreview:		(id< ZMVideoSDKRawDataPipeDelegate >)	listener
deviceID:		(NSString *_Nullable)	cameraDeviceID

Subscribe preview video raw data with a callback.

Parameters

listener	The callback sink object.
cameraDeviceID	The camera id.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

Deprecated: Use resolution: instead.

◆ startVideoPreview:deviceID:resolution:

- (ZMVideoSDKErrors) startVideoPreview:	(id< ZMVideoSDKRawDataPipeDelegate >)	listener
deviceID:	(NSString *_Nullable)	cameraDeviceID
resolution:	(ZMVideoSDKResolution)	resolution

Subscribe to preview video raw data with a callback.

Parameters

listener	The callback object.
cameraDeviceID	Camera device ID.
resolution	Specify the resolution at which to open the camera.

Returns: If the function succeeds, the return value is ZMVideoSDKErrors_Success.

◆ stopVideo

- (ZMVideoSDKErrors) stopVideo

Call this method to stop sending local video data from the camera.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ stopVideoCanvasPreview:

- (ZMVideoSDKErrors) stopVideoCanvasPreview: (NSView *) view

Stops the preview video.

Parameters

view	The view to preview video.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ stopVideoPreview:

- (ZMVideoSDKErrors) stopVideoPreview: (id< ZMVideoSDKRawDataPipeDelegate >) listener

UnSubscribe preview video raw data with the subscribed callback.

Parameters

listener The callback sink object.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ switchCamera

- (BOOL) switchCamera

Switch to the next available camera.

Returns: YES means the function is success, otherwise not.

◆ turnCameraDown:deviceID:

- (ZMVideoSDKErrors) turnCameraDown:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Tilt the camera down.

Parameters

range	Rotation range, 10 <= range <= 100.
deviceID	The camera device ID to rotate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ turnCameraLeft:deviceID:

- (ZMVideoSDKErrors) turnCameraLeft:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Pan the camera to the left.

Parameters

range	Rotation range, 10 <= range <= 100.
deviceID	The camera device ID to rotate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ turnCameraRight:deviceID:

- (ZMVideoSDKErrors) turnCameraRight:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Pan the camera to the right.

Parameters

range	Rotation range, 10 <= range <= 100.
deviceID	The camera device ID to rotate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ turnCameraUp:deviceID:

- (ZMVideoSDKErrors) turnCameraUp:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Tilt the camera up.

Parameters

range	Rotation range, 10 <= range <= 100.
deviceID	The camera device ID to rotate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ unmuteMultiStreamVideo:

- (BOOL) unmuteMultiStreamVideo: (NSString *) cameraDeviceID

Turn on multiple stream video.

Parameters

cameraDeviceID The camera ID which is running as multiple camera.

Returns: If the function succeeds, it will return YES, otherwise returns NO.

◆ unSpotlightAllVideos

- (ZMVideoSDKErrors) unSpotlightAllVideos

Call this method to set all user's video unSpotlight.

Returns: If the function succeeds, the return value is ZMVideoSDKErrors_Success.

◆ unSpotLightVideo:

- (ZMVideoSDKErrors) unSpotLightVideo: (ZMVideoSDKUser *) user

Call this method to unSpotlight user's video.

Parameters

user	Which you want to unSpotlight video.

Returns: If the function succeeds, the return value is ZMVideoSDKErrors_Success.

◆ zoomCameraIn:deviceID:

- (ZMVideoSDKErrors) zoomCameraIn:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Zoom the camera in.

Parameters

range	Zoom range, 10 <= range <= 100.
deviceID	The camera device ID to operate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

◆ zoomCameraOut:deviceID:

- (ZMVideoSDKErrors) zoomCameraOut:		(unsigned int)	range
deviceID:		(nullable NSString *)	deviceID

Zoom the camera out.

Parameters

range	Zoom range, 10 <= range <= 100.
deviceID	The camera device ID to operate. The default is the main camera ID.

Returns: If the function succeeds, it will return ZMVideoSDKErrors_Success.

Instance Methods

Detailed Description

Method Documentation

◆ addVirtualBackgroundItem:imageItem:

◆ canControlCamera:deviceID:

◆ canEnableAlphaChannelMode

◆ disableMultiStreamVideo:

◆ enableAlphaChannelMode:

◆ enableMultiStreamVideo:customDeviceName:

◆ enableOriginalAspectRatio:

◆ getCameraList

◆ getDeviceIDByMyPipe:

◆ getNumberOfCameras

◆ getSelectedVirtualBackgroundItem

◆ getSpotlightedVideoUserList

◆ getVirtualBackgroundItemList

◆ isAlphaChannelModeEnabled

◆ isDeviceSupportAlphaChannelMode

◆ isMyVideoMirrored

◆ isOriginalAspectRatioEnabled

◆ mirrorMyVideo:

◆ muteMultiStreamVideo:

◆ removeVirtualBackgroundItem:

◆ rotateMyVideo:

◆ selectCamera:

◆ setVideoQualityPreference:

◆ setVirtualBackgroundItem:

◆ spotLightVideo:

◆ startVideo

◆ startVideoCanvasPreview:deviceID:

◆ startVideoPreview:deviceID:

◆ startVideoPreview:deviceID:resolution:

◆ stopVideo

◆ stopVideoCanvasPreview:

◆ stopVideoPreview:

◆ switchCamera

◆ turnCameraDown:deviceID:

◆ turnCameraLeft:deviceID:

◆ turnCameraRight:deviceID:

◆ turnCameraUp:deviceID:

◆ unmuteMultiStreamVideo:

◆ unSpotlightAllVideos

◆ unSpotLightVideo:

◆ zoomCameraIn:deviceID:

◆ zoomCameraOut:deviceID: