AVE::VideoCaptureDeviceBase Class Reference

#include <video_capture.h>

Inheritance diagram for AVE::VideoCaptureDeviceBase:

Classes
class	Client

Public Member Functions
virtual void	AllocateAndStart (Client *client)=0
	初始化采集使用的资源，例如启动线程，保存SDK传递的回调 More...
virtual void	StopAndDeAllocate ()=0
	停止并且释放采集占用的资源，同时调用client的Destroy方法，这里的client指的是AllocateAndStart传递的client More...
virtual int	StartCapture ()=0
	启动采集，采集的数据通过client对象的OnIncomingCapturedData通知SDK More...
virtual int	StopCapture ()=0
	停止采集 More...
virtual VideoPixelBufferType	SupportBufferType ()=0
	获取采集callback的类型 More...
virtual void *	GetInterface ()=0
	检查是否支持SupportsVideoCapture接口 More...

Member Function Documentation

AllocateAndStart()

virtual void AVE::VideoCaptureDeviceBase::AllocateAndStart ( Client *  client )

pure virtual

初始化采集使用的资源，例如启动线程，保存SDK传递的回调

Parameters

client

SDK实现回调的对象，一定要保存

Note

SDK 第一次调用StartPublish或PlayStream时调用，

接口调用顺序:1、VideoCaptureFactory::Create 2、VideoCaptureDevice::AllocateAndStart

一定要实现

Implemented in AVE::VideoCaptureDevice.

GetInterface()

virtual void * AVE::VideoCaptureDeviceBase::GetInterface ( )

pure virtual

检查是否支持SupportsVideoCapture接口

Note

SDK会在VideoCaptureFactory::Create后调用此方法，如果返回不会空，SDK会按照SupportsVideoCapture

透传SDK的调用

一定要实现

Implemented in AVE::VideoCaptureDevice.

StartCapture()

virtual int AVE::VideoCaptureDeviceBase::StartCapture ( )

pure virtual

启动采集，采集的数据通过client对象的OnIncomingCapturedData通知SDK

Note

SDK StartPublish异步调用

SDK回调StartCapture后开始推数据才有效，否则数据会被丢弃

一定要实现，不要做丢帧逻辑，SDK内部已经包含了丢帧策略

StopAndDeAllocate()

virtual void AVE::VideoCaptureDeviceBase::StopAndDeAllocate ( )

pure virtual

停止并且释放采集占用的资源，同时调用client的Destroy方法，这里的client指的是AllocateAndStart传递的client

Note

SDK LogoutChannel时调用，如果是异步实现，实现者必须保证AllocateAndStart()和StopAndDeAllocate()在同一个线程执行

接口调用顺序:1、VideoCaptureDevice::StopAndDeAllocate 2、VideoCaptureFactory::Destroy

一定要实现

StopCapture()

virtual int AVE::VideoCaptureDeviceBase::StopCapture ( )

pure virtual

停止采集

Note

SDK StopPublish异步调用

SDK回调StopCapture后，不再接收任何采集数据

一定要实现

SupportBufferType()

virtual VideoPixelBufferType AVE::VideoCaptureDeviceBase::SupportBufferType ( )

pure virtual

获取采集callback的类型

Note

SDK会在AllocateAndStart前先调用此接口实例化对应的client，再调用AllocateAndStart

一定要实现

Implemented in AVE::VideoCaptureDevice.

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The documentation for this class was generated from the following file:

• video_capture.h