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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 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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| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 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 #include "config.h" | 29 #include "config.h" |
| 30 | 30 |
| 31 #if ENABLE(WEB_AUDIO) | 31 #if ENABLE(WEB_AUDIO) |
| 32 | 32 |
| 33 #include "DynamicsCompressorKernel.h" | 33 #include "core/platform/audio/DynamicsCompressorKernel.h" |
| 34 | 34 |
| 35 #include "AudioUtilities.h" | |
| 36 #include "DenormalDisabler.h" | |
| 37 #include <algorithm> | 35 #include <algorithm> |
| 36 #include "core/platform/audio/AudioUtilities.h" |
| 37 #include "core/platform/audio/DenormalDisabler.h" |
| 38 #include <wtf/MathExtras.h> | 38 #include <wtf/MathExtras.h> |
| 39 | 39 |
| 40 using namespace std; | 40 using namespace std; |
| 41 | 41 |
| 42 namespace WebCore { | 42 namespace WebCore { |
| 43 | 43 |
| 44 using namespace AudioUtilities; | 44 using namespace AudioUtilities; |
| 45 | 45 |
| 46 // Metering hits peaks instantly, but releases this fast (in seconds). | 46 // Metering hits peaks instantly, but releases this fast (in seconds). |
| 47 const float meteringReleaseTimeConstant = 0.325f; | 47 const float meteringReleaseTimeConstant = 0.325f; |
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| 470 | 470 |
| 471 m_preDelayReadIndex = 0; | 471 m_preDelayReadIndex = 0; |
| 472 m_preDelayWriteIndex = DefaultPreDelayFrames; | 472 m_preDelayWriteIndex = DefaultPreDelayFrames; |
| 473 | 473 |
| 474 m_maxAttackCompressionDiffDb = -1; // uninitialized state | 474 m_maxAttackCompressionDiffDb = -1; // uninitialized state |
| 475 } | 475 } |
| 476 | 476 |
| 477 } // namespace WebCore | 477 } // namespace WebCore |
| 478 | 478 |
| 479 #endif // ENABLE(WEB_AUDIO) | 479 #endif // ENABLE(WEB_AUDIO) |
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