just_audio/darwin/Classes/LoopingAudioSource.m

54 lines
1.8 KiB
Objective-C

#import "AudioSource.h"
#import "LoopingAudioSource.h"
#import <AVFoundation/AVFoundation.h>
@implementation LoopingAudioSource {
// An array of duplicates
NSArray<AudioSource *> *_audioSources; // <AudioSource *>
}
- (instancetype)initWithId:(NSString *)sid audioSources:(NSArray<AudioSource *> *)audioSources {
self = [super initWithId:sid];
NSAssert(self, @"super init cannot be nil");
_audioSources = audioSources;
return self;
}
- (int)buildSequence:(NSMutableArray *)sequence treeIndex:(int)treeIndex {
for (int i = 0; i < [_audioSources count]; i++) {
treeIndex = [_audioSources[i] buildSequence:sequence treeIndex:treeIndex];
}
return treeIndex;
}
- (void)findById:(NSString *)sourceId matches:(NSMutableArray<AudioSource *> *)matches {
[super findById:sourceId matches:matches];
for (int i = 0; i < [_audioSources count]; i++) {
[_audioSources[i] findById:sourceId matches:matches];
}
}
- (NSArray *)getShuffleOrder {
NSMutableArray *order = [NSMutableArray new];
int offset = (int)[order count];
for (int i = 0; i < [_audioSources count]; i++) {
AudioSource *audioSource = _audioSources[i];
NSArray *childShuffleOrder = [audioSource getShuffleOrder];
for (int j = 0; j < [childShuffleOrder count]; j++) {
[order addObject:@([childShuffleOrder[j] integerValue] + offset)];
}
offset += [childShuffleOrder count];
}
return order;
}
- (int)shuffle:(int)treeIndex currentIndex:(int)currentIndex {
// TODO: This should probably shuffle the same way on all duplicates.
for (int i = 0; i < [_audioSources count]; i++) {
treeIndex = [_audioSources[i] shuffle:treeIndex currentIndex:currentIndex];
}
return treeIndex;
}
@end