/*

 Copyright (C) 2017 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Custom video composition instruction class implementing AVVideoCompositionInstruction protocol.

 */

#import <Foundation/Foundation.h>

#import <AVFoundation/AVFoundation.h>

@interface APLCustomVideoCompositionInstruction : NSObject <AVVideoCompositionInstruction>

@property CMPersistentTrackID foregroundTrackID;

@property CMPersistentTrackID backgroundTrackID;

- (id)initPassThroughTrackID:(CMPersistentTrackID)passthroughTrackID forTimeRange:(CMTimeRange)timeRange;

- (id)initTransitionWithSourceTrackIDs:(NSArray*)sourceTrackIDs forTimeRange:(CMTimeRange)timeRange;

@end