@class NSMutableArray, AVAssetWriterInput, NSDictionary, NSURL, NSError, NSObject, AVAudioFormat; @protocol OS_dispatch_queue, OS_dispatch_group; @interface RCAssetWriter : AVAssetWriter { id _formatDescription; AVAssetWriterInput *_input; int _sampleRate; NSObject<OS_dispatch_queue> *_bufferQueue; NSObject<OS_dispatch_group> *_bufferGroup; NSMutableArray *_buffers; NSError *_appendError; } @property (readonly, nonatomic) NSDictionary *settings; @property (readonly, nonatomic) AVAudioFormat *fileFormat; @property (readonly, nonatomic) AVAudioFormat *processingFormat; @property (readonly, nonatomic) NSURL *url; @property (readonly, nonatomic) long long frameCount; - (void)finishWritingAudioFile:(id /* block */)a0; - (BOOL)startWritingAudioFile:(id *)a0; - (BOOL)_appendBufferOnQueue:(id)a0 error:(id *)a1; - (void).cxx_destruct; - (BOOL)writeFromBuffer:(id)a0 error:(id *)a1; - (id)initForWriting:(id)a0 settings:(id)a1 error:(id *)a2; @end