TVISampleBufferVideoView Class Reference

Inherits from	UIView
Conforms to	TVIVideoRenderer
Declared in	TVISampleBufferVideoView.h

Overview

A TVISampleBufferVideoView draws video frames from a TVIVideoTrack. TVISampleBufferVideoView should only be used on the application’s main thread. Subclassing TVISampleBufferVideoView is not supported. UIViewContentModeScaleToFill, UIViewContentModeScaleAspectFill and UIViewContentModeScaleAspectFit are the supported content modes.

When TVISampleBufferVideoView is contained within a UIWindowScene on iOS 13.0+, it registers for lifecycle notifications from the scene. When the view is used on earlier versions of iOS or added to a UIWindow without a UIWindowScene, it registers for UIApplication lifecycle notifications instead.

`– initWithFrame:delegate:`

Creates a video view with a frame and delegate.

- (null_unspecified instancetype)initWithFrame:(CGRect)frame delegate:(nullable id<TVISampleBufferVideoViewDelegate>)delegate

Parameters

`frame`	The frame rectangle for the view.
`delegate`	An object implementing the `TVISampleBufferVideoViewDelegate` protocol (often a UIViewController).

Return Value

A renderer.

Declared In

TVISampleBufferVideoView.h

`delegate`

A delegate which receives callbacks when important view rendering events occur.

@property (nonatomic, weak, nullable) id<TVISampleBufferVideoViewDelegate> delegate

Discussion

Note: The delegate is always called on the main thread in order to synchronize with UIKit.

Declared In

TVISampleBufferVideoView.h

`videoDimensions`

The dimensions of incoming video frames (without rotations applied). Use this to layout TVISampleBufferVideoView.

@property (nonatomic, assign, readonly) CMVideoDimensions videoDimensions

Declared In

TVISampleBufferVideoView.h

`hasVideoData`

Indicates that at least one frame of video data has been received.

@property (nonatomic, assign, readonly) BOOL hasVideoData

Declared In

TVISampleBufferVideoView.h

`mirror`

Determines whether the view should be mirrored.

@property (nonatomic, assign, getter=shouldMirror) BOOL mirror

Discussion

This is useful when rendering the local feed from the front camera. The default is NO.

Declared In

TVISampleBufferVideoView.h