TuSDKVideoImageExtractor Class Reference

Inherits from NSObject
Declared in TuSDKVideoImageExtractor.h

Overview

视频缩略图提取器

+ createExtractor

创建 TuSDKVideoImageExtractor

+ (TuSDKVideoImageExtractor *_Nonnull)createExtractor

Return Value

TuSDKVideoImageExtractor

Declared In

TuSDKVideoImageExtractor.h

  videoAsset

视频资源

@property (nonatomic, strong, nullable) AVAsset *videoAsset

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

  videoAssets

一组视频资源

@property (nonatomic, strong, nullable) NSArray<AVAsset*> *videoAssets

Availability

v3.1.0

Declared In

TuSDKVideoImageExtractor.h

  videoPath

输入的视频地址

@property (nonatomic, copy, nullable) NSURL *videoPath

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

  videoComposition

指定视频轨道图像提取指令，仅为单个视频时有效

@property (nonatomic, copy, nullable) AVVideoComposition *videoComposition

Availability

v3.0.1

Declared In

TuSDKVideoImageExtractor.h

  extractFrameCount

提取的视频帧数，自动根据视频长度均匀获取 (mExtractFrameCount 和 mExtractFrameInterval 都设置时 优先使用mExtractFrameCount)

@property (nonatomic, assign) NSUInteger extractFrameCount

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

  extractFrameTimeInterval

提取帧的时间间隔 (单位：s) 张数不固定

@property (nonatomic, assign) CGFloat extractFrameTimeInterval

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

  outputMaxImageSize

输出的图片尺寸，不设置则按视频宽高比例计算 注意：要得到清晰图像，需要宽高分别乘以 [UIScreen mainScreen].scale。

@property (nonatomic, assign) CGSize outputMaxImageSize

Declared In

TuSDKVideoImageExtractor.h

  isAccurate

是否需要精确时间帧获取图片, 默认NO

@property (nonatomic, assign) BOOL isAccurate

Availability

2.2.0

Declared In

TuSDKVideoImageExtractor.h

– extractImageList

同步提取视频帧

- (NSArray<UIImage*> *_Nullable)extractImageList

Return Value

视频帧数据列表

Declared In

TuSDKVideoImageExtractor.h

– asyncExtractImageList:

异步获取视频缩略图

- (void)asyncExtractImageList:(TuSDKVideoImageExtractorBlock _Nonnull)handler

Parameters

handler

所有缩略图获取完成后处理器

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

– asyncExtractImageWithHandler:

异步获取视频缩略图

- (void)asyncExtractImageWithHandler:(TuSDKVideoImageExtractorStepImageBlock _Nonnull)handler

Parameters

handler

获取到每帧缩略图时的处理回调

Availability

v1.0.0

Declared In

TuSDKVideoImageExtractor.h

– frameImageAtTime:

同步获取指定时间的视频帧

- (UIImage *_Nullable)frameImageAtTime:(CMTime)time

Parameters

time

帧所在时间

Return Value

视频帧

Declared In

TuSDKVideoImageExtractor.h