AEBlockFilter.h
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1 //
2 // AEBlockFilter.h
3 // TheAmazingAudioEngine
4 //
5 // Created by Michael Tyson on 20/12/2012.
6 //
7 // This software is provided 'as-is', without any express or implied
8 // warranty. In no event will the authors be held liable for any damages
9 // arising from the use of this software.
10 //
11 // Permission is granted to anyone to use this software for any purpose,
12 // including commercial applications, and to alter it and redistribute it
13 // freely, subject to the following restrictions:
14 //
15 // 1. The origin of this software must not be misrepresented; you must not
16 // claim that you wrote the original software. If you use this software
17 // in a product, an acknowledgment in the product documentation would be
18 // appreciated but is not required.
19 //
20 // 2. Altered source versions must be plainly marked as such, and must not be
21 // misrepresented as being the original software.
22 //
23 // 3. This notice may not be removed or altered from any source distribution.
24 //
25 
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29 
30 #import <Foundation/Foundation.h>
31 #import "TheAmazingAudioEngine.h"
32 
51 typedef void (^AEBlockFilterBlock)(AEAudioFilterProducer producer,
52  void *producerToken,
53  const AudioTimeStamp *time,
54  UInt32 frames,
55  AudioBufferList *audio);
56 
60 @interface AEBlockFilter : NSObject <AEAudioFilter>
61 
67 + (AEBlockFilter*)filterWithBlock:(AEBlockFilterBlock)block;
68 
69 /*
70  * The audio format for this filter
71  */
72 @property (nonatomic, assign) AudioStreamBasicDescription audioDescription;
73 
74 @end
75 
76 #ifdef __cplusplus
77 }
78 #endif