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1 /* | 1 /* |
2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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29 #ifndef AudioIOCallback_h | 29 #ifndef AudioIOCallback_h |
30 #define AudioIOCallback_h | 30 #define AudioIOCallback_h |
31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 class AudioBus; | 34 class AudioBus; |
35 | 35 |
36 // Abstract base-class for isochronous audio I/O client. | 36 // Abstract base-class for isochronous audio I/O client. |
37 class AudioIOCallback { | 37 class AudioIOCallback { |
38 public: | 38 public: |
39 // render() is called periodically to get the next render quantum of audio int
o destinationBus. | 39 // render() is called periodically to get the next render quantum of audio |
40 // Optional audio input is given in sourceBus (if it's not 0). | 40 // into destinationBus. Optional audio input is given in sourceBus (if it's |
| 41 // not 0). |
41 virtual void render(AudioBus* sourceBus, | 42 virtual void render(AudioBus* sourceBus, |
42 AudioBus* destinationBus, | 43 AudioBus* destinationBus, |
43 size_t framesToProcess) = 0; | 44 size_t framesToProcess) = 0; |
44 | 45 |
45 virtual ~AudioIOCallback() {} | 46 virtual ~AudioIOCallback() {} |
46 }; | 47 }; |
47 | 48 |
48 } // namespace blink | 49 } // namespace blink |
49 | 50 |
50 #endif // AudioIOCallback_h | 51 #endif // AudioIOCallback_h |
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