SndStreamManager.h

//
//  $Id: SndStreamManager.h 3449 2009-04-04 16:52:47Z leighsmith $
//
//  Description:
//    See headerdoc description below.
//
//  Original Author: SKoT McDonald, <skot@tomandandy.com>
//
//  Copyright (c) 2001, The MusicKit Project.  All rights reserved.
//
//  Permission is granted to use and modify this code for commercial and 
//  non-commercial purposes so long as the author attribution and copyright 
//  messages remain intact and accompany all relevant code.
//

#ifndef __SNDSTREAMMANAGER_H__
#define __SNDSTREAMMANAGER_H__

#import <Foundation/Foundation.h>
#import "SndFormat.h"

@class SndAudioBuffer;
@class SndStreamClient;
@class SndStreamMixer;

#ifdef __MINGW32__
#import "SndConditionLock.h"
#define NSConditionLock SndConditionLock
#endif

@protocol SndDelegateMessagePassing
- (void) _sendDelegateInvocation:(in unsigned long) mesg;
@end 

@interface SndStreamManager : NSObject <SndDelegateMessagePassing>
{ 
    SndStreamMixer *mixer;
    BOOL            active;
    BOOL            bg_active;
    SndFormat       format;
    double          nowTime;
    char            bg_sem;
    char            bgdm_sem;
    NSConditionLock *bg_threadLock;
    NSConditionLock *bgdm_threadLock;
    NSLock          *delegateMessageArrayLock;
    NSMutableArray  *delegateMessageArray;
    NSConnection    *threadConnection;

    BOOL             bDelegateMessagingEnabled;
    BOOL             isStopping;
}

+ (void) initialize;

+ (SndStreamManager *) defaultStreamManager;

+ (NSArray *) getDriverNames;

- (NSString *) description;

- (void) startStreaming;

- (void) stopStreaming;

- (void) streamStartStopThread;

- (void) delegateMessageThread: (NSArray *) ports;

- (BOOL) addClient: (SndStreamClient *) client;

- (BOOL) removeClient: (SndStreamClient *) client;

- (void) processStreamAtTime: (double) sampleCount
                       input: (SndAudioBuffer *) inB
                      output: (SndAudioBuffer *) outB;

- setFormat: (SndFormat) newFormat;

- (SndFormat) format;

- (double) nowTime;

- (SndStreamMixer *) mixer;

- (BOOL) isActive;

- (double) samplingRate;

- (void) resetTime: (double) originTimeInSeconds;

- (void) sendMessageInMainThreadToTarget: (id) target sel: (SEL) sel arg1: (id) arg1 arg2: (id) arg2;

@end


#endif

---