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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 |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE | 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE |
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
23 * DAMAGE. | 23 * DAMAGE. |
24 */ | 24 */ |
25 | 25 |
| 26 #include "modules/webaudio/AudioBufferSourceNode.h" |
| 27 #include <algorithm> |
26 #include "bindings/core/v8/ExceptionMessages.h" | 28 #include "bindings/core/v8/ExceptionMessages.h" |
27 #include "bindings/core/v8/ExceptionState.h" | 29 #include "bindings/core/v8/ExceptionState.h" |
28 #include "core/dom/ExceptionCode.h" | 30 #include "core/dom/ExceptionCode.h" |
29 #include "core/frame/UseCounter.h" | 31 #include "core/frame/UseCounter.h" |
30 #include "modules/webaudio/AudioBufferSourceNode.h" | |
31 #include "modules/webaudio/AudioBufferSourceOptions.h" | 32 #include "modules/webaudio/AudioBufferSourceOptions.h" |
32 #include "modules/webaudio/AudioNodeOutput.h" | 33 #include "modules/webaudio/AudioNodeOutput.h" |
33 #include "modules/webaudio/BaseAudioContext.h" | 34 #include "modules/webaudio/BaseAudioContext.h" |
34 #include "platform/audio/AudioUtilities.h" | 35 #include "platform/audio/AudioUtilities.h" |
35 #include "wtf/MathExtras.h" | 36 #include "wtf/MathExtras.h" |
36 #include "wtf/PtrUtil.h" | 37 #include "wtf/PtrUtil.h" |
37 #include <algorithm> | |
38 | 38 |
39 namespace blink { | 39 namespace blink { |
40 | 40 |
41 const double DefaultGrainDuration = 0.020; // 20ms | 41 const double DefaultGrainDuration = 0.020; // 20ms |
42 | 42 |
43 // Arbitrary upper limit on playback rate. | 43 // Arbitrary upper limit on playback rate. |
44 // Higher than expected rates can be useful when playing back oversampled | 44 // Higher than expected rates can be useful when playing back oversampled |
45 // buffers to minimize linear interpolation aliasing. | 45 // buffers to minimize linear interpolation aliasing. |
46 const double MaxRate = 1024; | 46 const double MaxRate = 1024; |
47 | 47 |
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755 | 755 |
756 void AudioBufferSourceNode::start(double when, | 756 void AudioBufferSourceNode::start(double when, |
757 double grainOffset, | 757 double grainOffset, |
758 double grainDuration, | 758 double grainDuration, |
759 ExceptionState& exceptionState) { | 759 ExceptionState& exceptionState) { |
760 audioBufferSourceHandler().start(when, grainOffset, grainDuration, | 760 audioBufferSourceHandler().start(when, grainOffset, grainDuration, |
761 exceptionState); | 761 exceptionState); |
762 } | 762 } |
763 | 763 |
764 } // namespace blink | 764 } // namespace blink |
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