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author | Andras Becsi <andras.becsi@digia.com> | 2014-03-18 13:16:26 +0100 |
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committer | Frederik Gladhorn <frederik.gladhorn@digia.com> | 2014-03-20 15:55:39 +0100 |
commit | 3f0f86b0caed75241fa71c95a5d73bc0164348c5 (patch) | |
tree | 92b9fb00f2e9e90b0be2262093876d4f43b6cd13 /chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp | |
parent | e90d7c4b152c56919d963987e2503f9909a666d2 (diff) | |
download | qtwebengine-chromium-3f0f86b0caed75241fa71c95a5d73bc0164348c5.tar.gz |
Update to new stable branch 1750
This also includes an updated ninja and chromium dependencies
needed on Windows.
Change-Id: Icd597d80ed3fa4425933c9f1334c3c2e31291c42
Reviewed-by: Zoltan Arvai <zarvai@inf.u-szeged.hu>
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Diffstat (limited to 'chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp')
-rw-r--r-- | chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp b/chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp deleted file mode 100644 index a76753e4f43..00000000000 --- a/chromium/third_party/WebKit/Source/core/platform/audio/AudioUtilities.cpp +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright (C) 2010, Google Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "config.h" - -#if ENABLE(WEB_AUDIO) - -#include "core/platform/audio/AudioUtilities.h" -#include "wtf/Assertions.h" -#include "wtf/MathExtras.h" - -namespace WebCore { - -namespace AudioUtilities { - -float decibelsToLinear(float decibels) -{ - return powf(10, 0.05f * decibels); -} - -float linearToDecibels(float linear) -{ - // It's not possible to calculate decibels for a zero linear value since it would be -Inf. - // -1000.0 dB represents a very tiny linear value in case we ever reach this case. - ASSERT(linear); - if (!linear) - return -1000; - - return 20 * log10f(linear); -} - -double discreteTimeConstantForSampleRate(double timeConstant, double sampleRate) -{ - return 1 - exp(-1 / (sampleRate * timeConstant)); -} - -size_t timeToSampleFrame(double time, double sampleRate) -{ - return static_cast<size_t>(round(time * sampleRate)); -} -} // AudioUtilites - -} // WebCore - -#endif // ENABLE(WEB_AUDIO) |