TuSDKMediaTimeRange Class Reference Inherits from NSObject Conforms to NSCopying Declared in TuSDKMediaTimeRange.h Overview 特效时间轴 – initWithStart:end: 根据开始时间和结束时间初始化时间范围。 当开始时间大于结束时间时为倒序读取模式 - (instancetype)initWithStart:(CMTime)start end:(CMTime)end Parameters start 开始时间 end 结束时间 Return Value TuSDKMediaTimeRange Availability v3.0 Declared In TuSDKMediaTimeRange.h – initWithStart:duration: 根据开始时间和结束时间初始化时间范围。 当开始时间大于结束时间时为倒序读取模式 - (instancetype)initWithStart:(CMTime)start duration:(CMTime)duraiton Parameters start 开始时间 duration 持续时间 Return Value TuSDKMediaTimeRange Availability v3.0 Declared In TuSDKMediaTimeRange.h start 开始时间 @property (nonatomic) CMTime start Availability v3.0 Declared In TuSDKMediaTimeRange.h end 开始时间 @property (nonatomic) CMTime end Availability v3.0 Declared In TuSDKMediaTimeRange.h duration 持续时间 @property (nonatomic, readonly) CMTime duration Availability v3.0 Declared In TuSDKMediaTimeRange.h cmTimeRange CMTimeRange 值 @property (nonatomic, readonly) CMTimeRange cmTimeRange Availability v3.0 Declared In TuSDKMediaTimeRange.h isReverse 标识该时间区间是否为倒序 @property (nonatomic, readonly) BOOL isReverse Availability v3.0 Declared In TuSDKMediaTimeRange.h isValid 标识该时间区间是否有效 @property (nonatomic, readonly) BOOL isValid Availability v3.0 Declared In TuSDKMediaTimeRange.h