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I added some features into the AudioStreamer #19

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I added some features into the AudioStreamer #19

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13300a8
added local file stream support; added prebuffering and a new thread …
sprhawk Dec 10, 2011
4b8fe64
added local file streaming to SHOUTCAST; fixed set streamer = NULL if…
sprhawk Dec 10, 2011
8380446
added property ivar declaration to .h, which is required under MacOSX
sprhawk Dec 11, 2011
1a022c1
remove use of @autoreleasepool, which cause crash on 10.6
sprhawk Dec 12, 2011
e36e592
add synchronization to audio file stream
sprhawk Dec 12, 2011
6149218
fixed a weird bug, see the comment
sprhawk Dec 12, 2011
afe604d
fixed a dead-lock bug
sprhawk Dec 12, 2011
41a3b01
added synchronization to _bufferPushingThread
sprhawk Dec 13, 2011
cdb5126
added statement to pause when buffering
sprhawk Dec 14, 2011
4037fca
added a NSThread sleep for pre-buffering, see the comment
sprhawk Dec 14, 2011
969fc61
move NSThread sleep call position
sprhawk Dec 14, 2011
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23 changes: 20 additions & 3 deletions Classes/AudioStreamer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
// this copyright and permission notice. Attribution in compiled projects is
// appreciated but not required.
//
#define SHOUTCAST_METADATA
//#define SHOUTCAST_METADATA

#if TARGET_OS_IPHONE
#import <UIKit/UIKit.h>
Expand All @@ -20,12 +20,16 @@
#endif
#else
#import <Cocoa/Cocoa.h>
#endif TARGET_OS_IPHONE
#endif// TARGET_OS_IPHONE

#import <Foundation/Foundation.h>
#include <pthread.h>
#include <AudioToolbox/AudioToolbox.h>


#define USE_PREBUFFER 1


#define LOG_QUEUED_BUFFERS 0

#define kNumAQBufs 16 // Number of audio queue buffers we allocate.
Expand Down Expand Up @@ -98,7 +102,8 @@ typedef enum
AS_AUDIO_QUEUE_FLUSH_FAILED,
AS_AUDIO_STREAMER_FAILED,
AS_GET_AUDIO_TIME_FAILED,
AS_AUDIO_BUFFER_TOO_SMALL
AS_AUDIO_BUFFER_TOO_SMALL,
AS_AUDIO_MEMORY_ALLOC_FAILED,
} AudioStreamerErrorCode;

extern NSString * const ASStatusChangedNotification;
Expand Down Expand Up @@ -179,6 +184,16 @@ extern NSString * const ASUpdateMetadataNotification;
NSMutableString *metaDataString; // the metaDataString
#endif
BOOL vbr; // indicates VBR (or not) stream


#if defined (USE_PREBUFFER) && USE_PREBUFFER
NSLock * _bufferLock;
NSLock * _audioStreamLock;
NSMutableArray * _buffers;
NSThread * _bufferPushingThread;
BOOL _allBufferPushed;
BOOL _finishedBuffer;
#endif
}

@property AudioStreamerErrorCode errorCode;
Expand All @@ -194,6 +209,7 @@ extern NSString * const ASUpdateMetadataNotification;
@property (readonly) BOOL vbr;

- (id)initWithURL:(NSURL *)aURL;
//- (id)initWithURL:(NSURL *)aURL encryption:(EncryptionMethod)method crc32:(uLong)crc32;
- (void)start;
- (void)stop;
- (void)pause;
Expand All @@ -209,6 +225,7 @@ extern NSString * const ASUpdateMetadataNotification;
- (float)averagePowerForChannel:(NSUInteger)channelNumber;


- (void)setVolume:(float)vol;
@end


Expand Down
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