OLD | NEW |
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 |
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
42 | 42 |
43 namespace WebCore { | 43 namespace WebCore { |
44 | 44 |
45 const double DefaultGrainDuration = 0.020; // 20ms | 45 const double DefaultGrainDuration = 0.020; // 20ms |
46 | 46 |
47 // Arbitrary upper limit on playback rate. | 47 // Arbitrary upper limit on playback rate. |
48 // Higher than expected rates can be useful when playing back oversampled buffer
s | 48 // Higher than expected rates can be useful when playing back oversampled buffer
s |
49 // to minimize linear interpolation aliasing. | 49 // to minimize linear interpolation aliasing. |
50 const double MaxRate = 1024; | 50 const double MaxRate = 1024; |
51 | 51 |
52 PassRefPtr<AudioBufferSourceNode> AudioBufferSourceNode::create(AudioContext* co
ntext, float sampleRate) | 52 PassRefPtrWillBeRawPtr<AudioBufferSourceNode> AudioBufferSourceNode::create(Audi
oContext* context, float sampleRate) |
53 { | 53 { |
54 return adoptRef(new AudioBufferSourceNode(context, sampleRate)); | 54 return adoptRefWillBeNoop(new AudioBufferSourceNode(context, sampleRate)); |
55 } | 55 } |
56 | 56 |
57 AudioBufferSourceNode::AudioBufferSourceNode(AudioContext* context, float sample
Rate) | 57 AudioBufferSourceNode::AudioBufferSourceNode(AudioContext* context, float sample
Rate) |
58 : AudioScheduledSourceNode(context, sampleRate) | 58 : AudioScheduledSourceNode(context, sampleRate) |
59 , m_buffer(nullptr) | 59 , m_buffer(nullptr) |
60 , m_isLooping(false) | 60 , m_isLooping(false) |
61 , m_loopStart(0) | 61 , m_loopStart(0) |
62 , m_loopEnd(0) | 62 , m_loopEnd(0) |
63 , m_virtualReadIndex(0) | 63 , m_virtualReadIndex(0) |
64 , m_isGrain(false) | 64 , m_isGrain(false) |
(...skipping 403 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
468 } | 468 } |
469 } | 469 } |
470 | 470 |
471 void AudioBufferSourceNode::finish() | 471 void AudioBufferSourceNode::finish() |
472 { | 472 { |
473 clearPannerNode(); | 473 clearPannerNode(); |
474 ASSERT(!m_pannerNode); | 474 ASSERT(!m_pannerNode); |
475 AudioScheduledSourceNode::finish(); | 475 AudioScheduledSourceNode::finish(); |
476 } | 476 } |
477 | 477 |
| 478 void AudioBufferSourceNode::trace(Visitor* visitor) |
| 479 { |
| 480 visitor->trace(m_buffer); |
| 481 visitor->trace(m_playbackRate); |
| 482 AudioScheduledSourceNode::trace(visitor); |
| 483 } |
| 484 |
478 } // namespace WebCore | 485 } // namespace WebCore |
479 | 486 |
480 #endif // ENABLE(WEB_AUDIO) | 487 #endif // ENABLE(WEB_AUDIO) |
OLD | NEW |