Updated packages, rewrote player = gapless playback, faster loading

just_audio/macos/Classes/AudioSource.m

@@ -0,0 +1,37 @@
+#import "AudioSource.h"
+#import <AVFoundation/AVFoundation.h>
+
+@implementation AudioSource {
+    NSString *_sourceId;
+}
+
+- (instancetype)initWithId:(NSString *)sid {
+    self = [super init];
+    NSAssert(self, @"super init cannot be nil");
+    _sourceId = sid;
+    return self;
+}
+
+- (NSString *)sourceId {
+    return _sourceId;
+}
+
+- (int)buildSequence:(NSMutableArray *)sequence treeIndex:(int)treeIndex {
+    return 0;
+}
+
+- (void)findById:(NSString *)sourceId matches:(NSMutableArray<AudioSource *> *)matches {
+    if ([_sourceId isEqualToString:sourceId]) {
+        [matches addObject:self];
+    }
+}
+
+- (NSArray *)getShuffleOrder {
+    return @[];
+}
+
+- (int)shuffle:(int)treeIndex currentIndex:(int)currentIndex {
+    return 0;
+}
+
+@end