AVVideo Class Reference

AVFoundation video capture controller used by the macOS backend. More...

#include <src/platform/macos/av_video.h>

Inheritance diagram for AVVideo:

Collaboration diagram for AVVideo:

Instance Methods
(dispatch_semaphore_t)	- capture:
	Run the capture loop for this backend.
(id)	- initWithDisplay:frameRate:
	Initialize AVFoundation capture for a display and frame rate.
(void)	- setFrameWidth:frameHeight:
	Set frame width frame height.

Protected Types
typedef bool(^)	FrameCallbackBlock(CMSampleBufferRef)
	Objective-C block invoked for each captured sample buffer.

Properties
NSMapTable< AVCaptureConnection *, FrameCallbackBlock > *	captureCallbacks
	Capture callbacks property.
NSMapTable< AVCaptureConnection *, dispatch_semaphore_t > *	captureSignals
	Capture signals property.
CGDirectDisplayID	displayID
	Display ID property.
int	frameHeight
	Frame height property.
int	frameWidth
	Frame width property.
CMTime	minFrameDuration
	Min frame duration property.
OSType	pixelFormat
	Pixel format property.
AVCaptureSession *	session
	Capture session that owns the active AVFoundation inputs and outputs.
NSMapTable< AVCaptureConnection *, AVCaptureVideoDataOutput * > *	videoOutputs
	Video outputs property.

Detailed Description

AVFoundation video capture controller used by the macOS backend.

Method Documentation

capture:

- (dispatch_semaphore_t) capture:

(FrameCallbackBlock)

frameCallback

Run the capture loop for this backend.

Parameters

frameCallback

Frame callback.

Returns

Capture status reported to the streaming pipeline.

initWithDisplay:frameRate:

- (id) initWithDisplay:		(CGDirectDisplayID)	displayID
frameRate:		(int)	frameRate

Initialize AVFoundation capture for a display and frame rate.

Parameters

displayID	Display ID.
frameRate	Frame rate.

Returns

Initialized AVVideo instance, or nil on failure.

setFrameWidth:frameHeight:

- (void) setFrameWidth:		(int)	frameWidth
frameHeight:		(int)	frameHeight

Set frame width frame height.

Parameters

frameWidth	Frame width.
frameHeight	Frame height.

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

• src/platform/macos/av_video.h
• src/platform/macos/av_video.m