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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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24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 */ | 27 */ |
28 | 28 |
29 #ifndef AudioFIFO_h | 29 #ifndef AudioFIFO_h |
30 #define AudioFIFO_h | 30 #define AudioFIFO_h |
31 | 31 |
32 #include "platform/audio/AudioBus.h" | 32 #include "platform/audio/AudioBus.h" |
33 | 33 |
34 namespace WebCore { | 34 namespace blink { |
35 | 35 |
36 class AudioFIFO { | 36 class AudioFIFO { |
37 public: | 37 public: |
38 // Create a FIFO large enough to hold |fifoLength| frames of data of |number
OfChannels| channels. | 38 // Create a FIFO large enough to hold |fifoLength| frames of data of |number
OfChannels| channels. |
39 AudioFIFO(unsigned numberOfChannels, size_t fifoLength); | 39 AudioFIFO(unsigned numberOfChannels, size_t fifoLength); |
40 | 40 |
41 // Push the data from the bus into the FIFO. | 41 // Push the data from the bus into the FIFO. |
42 void push(const AudioBus*); | 42 void push(const AudioBus*); |
43 | 43 |
44 // Consume |framesToConsume| frames of data from the FIFO and put them in |d
estination|. The | 44 // Consume |framesToConsume| frames of data from the FIFO and put them in |d
estination|. The |
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63 // The number of actual elements in the FIFO | 63 // The number of actual elements in the FIFO |
64 size_t m_framesInFifo; | 64 size_t m_framesInFifo; |
65 | 65 |
66 // Where to start reading from the FIFO. | 66 // Where to start reading from the FIFO. |
67 size_t m_readIndex; | 67 size_t m_readIndex; |
68 | 68 |
69 // Where to start writing to the FIFO. | 69 // Where to start writing to the FIFO. |
70 size_t m_writeIndex; | 70 size_t m_writeIndex; |
71 }; | 71 }; |
72 | 72 |
73 } // namespace WebCore | 73 } // namespace blink |
74 | 74 |
75 #endif // AudioFIFO.h | 75 #endif // AudioFIFO.h |
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