agora::rtc::INGVideoDeviceManager Class Reference

#include <NGIAgoraVideoDeviceManager.h>

Inheritance diagram for agora::rtc::INGVideoDeviceManager:

Public Member Functions
virtual int	registerObserver (IVideoDeviceManagerObserver *observer, void(*safeDeleter)(IVideoDeviceManagerObserver *)=NULL, aosl_ref_t ares=AOSL_REF_INVALID)=0
virtual int	unregisterObserver (IVideoDeviceManagerObserver *observer)=0
virtual int	getNumberOfDevices ()=0
virtual int	getNumberOfCapabilities (const char *deviceId)=0
virtual int	getCapability (const char *deviceId, const uint32_t capabilityIndex, VideoFormat &capability)=0
virtual int	getDeviceInfo (int index, VideoDeviceInfo &deviceInfo)=0
Public Member Functions inherited from agora::RefCountInterface
virtual void	AddRef () const =0
virtual RefCountReleaseStatus	Release () const =0
virtual bool	HasOneRef () const =0

Detailed Description

The INGVideoDeviceManager class.

Member Function Documentation

registerObserver()

virtual int agora::rtc::INGVideoDeviceManager::registerObserver ( IVideoDeviceManagerObserver *  observer, void(*)(IVideoDeviceManagerObserver *)  safeDeleter = NULL, aosl_ref_t  ares = AOSL_REF_INVALID  )

pure virtual

Registers an IVideoDeviceManagerObserver object.

You need to implement the IAudioDeviceManageObserver class in this method, and register callbacks according to your scenario.

Parameters

observer

A pointer to the IVideoDeviceManagerObserver class.

Returns

• 0: Success.
• < 0: Failure.

unregisterObserver()

virtual int agora::rtc::INGVideoDeviceManager::unregisterObserver ( IVideoDeviceManagerObserver *  observer )

pure virtual

Releases the IVideoDeviceManagerObserver object.

Parameters

observer

The pointer to the IVideoDeviceManagerObserver class registered using registerObserver.

Returns

• 0: Success.
• < 0: Failure.

getNumberOfDevices()

virtual int agora::rtc::INGVideoDeviceManager::getNumberOfDevices ( )

pure virtual

Gets the number of video devices.

Returns

• The number of video devices.

getNumberOfCapabilities()

virtual int agora::rtc::INGVideoDeviceManager::getNumberOfCapabilities ( const char *  deviceId )

pure virtual

Gets the number of capabilities.

Parameters

deviceId

The device ID.

Returns

• The number of capabilities.

getCapability()

virtual int agora::rtc::INGVideoDeviceManager::getCapability ( const char *  deviceId, const uint32_t  capabilityIndex, VideoFormat &  capability  )

pure virtual

Gets the capability of a specified device.

Parameters

deviceId	The device ID.
capabilityIndex	The capability index of the device.
capability	The reference to the video capability. See VideoFormat.

Returns

• The capability of the device.

getDeviceInfo()

virtual int agora::rtc::INGVideoDeviceManager::getDeviceInfo ( int  index, VideoDeviceInfo &  deviceInfo  )

pure virtual

Gets the device information.

Parameters

index	The index of the device.
deviceInfo	The device information.

Returns

• 0: Success.
• < 0: Failure.