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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, 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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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55 // setBuffer() is called on the main thread. This is the buffer we use for
playback. | 55 // setBuffer() is called on the main thread. This is the buffer we use for
playback. |
56 // returns true on success. | 56 // returns true on success. |
57 bool setBuffer(AudioBuffer*); | 57 bool setBuffer(AudioBuffer*); |
58 AudioBuffer* buffer() { return m_buffer.get(); } | 58 AudioBuffer* buffer() { return m_buffer.get(); } |
59 | 59 |
60 // numberOfChannels() returns the number of output channels. This value equ
als the number of channels from the buffer. | 60 // numberOfChannels() returns the number of output channels. This value equ
als the number of channels from the buffer. |
61 // If a new buffer is set with a different number of channels, then this val
ue will dynamically change. | 61 // If a new buffer is set with a different number of channels, then this val
ue will dynamically change. |
62 unsigned numberOfChannels(); | 62 unsigned numberOfChannels(); |
63 | 63 |
64 // Play-state | 64 // Play-state |
65 void startGrain(double when, double grainOffset); | 65 void start(double when = 0); |
66 void startGrain(double when, double grainOffset, double grainDuration); | 66 void start(double when, double grainOffset, double grainDuration = 0); |
67 | 67 |
68 void noteGrainOn(double when, double grainOffset, double grainDuration); | 68 void noteGrainOn(double when, double grainOffset, double grainDuration); |
69 | 69 |
70 // Note: the attribute was originally exposed as .looping, but to be more co
nsistent in naming with <audio> | 70 // Note: the attribute was originally exposed as .looping, but to be more co
nsistent in naming with <audio> |
71 // and with how it's described in the specification, the proper attribute na
me is .loop | 71 // and with how it's described in the specification, the proper attribute na
me is .loop |
72 // The old attribute is kept for backwards compatibility. | 72 // The old attribute is kept for backwards compatibility. |
73 bool loop() const { return m_isLooping; } | 73 bool loop() const { return m_isLooping; } |
74 void setLoop(bool looping) { m_isLooping = looping; } | 74 void setLoop(bool looping) { m_isLooping = looping; } |
75 | 75 |
76 // Loop times in seconds. | 76 // Loop times in seconds. |
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139 // the pitch rate. We manually manage ref-counting because we want to use Re
fTypeConnection. | 139 // the pitch rate. We manually manage ref-counting because we want to use Re
fTypeConnection. |
140 PannerNode* m_pannerNode; | 140 PannerNode* m_pannerNode; |
141 | 141 |
142 // This synchronizes process() with setBuffer() which can cause dynamic chan
nel count changes. | 142 // This synchronizes process() with setBuffer() which can cause dynamic chan
nel count changes. |
143 mutable Mutex m_processLock; | 143 mutable Mutex m_processLock; |
144 }; | 144 }; |
145 | 145 |
146 } // namespace WebCore | 146 } // namespace WebCore |
147 | 147 |
148 #endif // AudioBufferSourceNode_h | 148 #endif // AudioBufferSourceNode_h |
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