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Side by Side Diff: third_party/WebKit/Source/platform/audio/AudioBus.cpp

Issue 2547053003: s/ passed(...) / WTF::passed(...) / to avoid future ambiguity w/ base::Passed. (Closed)
Patch Set: Rebasing... Created 4 years ago
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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 * 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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54 54
55 return adoptRef(new AudioBus(numberOfChannels, length, allocate)); 55 return adoptRef(new AudioBus(numberOfChannels, length, allocate));
56 } 56 }
57 57
58 AudioBus::AudioBus(unsigned numberOfChannels, size_t length, bool allocate) 58 AudioBus::AudioBus(unsigned numberOfChannels, size_t length, bool allocate)
59 : m_length(length), m_busGain(1), m_isFirstTime(true), m_sampleRate(0) { 59 : m_length(length), m_busGain(1), m_isFirstTime(true), m_sampleRate(0) {
60 m_channels.reserveInitialCapacity(numberOfChannels); 60 m_channels.reserveInitialCapacity(numberOfChannels);
61 61
62 for (unsigned i = 0; i < numberOfChannels; ++i) { 62 for (unsigned i = 0; i < numberOfChannels; ++i) {
63 std::unique_ptr<AudioChannel> channel = 63 std::unique_ptr<AudioChannel> channel =
64 allocate ? wrapUnique(new AudioChannel(length)) 64 allocate ? WTF::wrapUnique(new AudioChannel(length))
65 : wrapUnique(new AudioChannel(0, length)); 65 : WTF::wrapUnique(new AudioChannel(0, length));
66 m_channels.append(std::move(channel)); 66 m_channels.append(std::move(channel));
67 } 67 }
68 68
69 m_layout = LayoutCanonical; // for now this is the only layout we define 69 m_layout = LayoutCanonical; // for now this is the only layout we define
70 } 70 }
71 71
72 void AudioBus::setChannelMemory(unsigned channelIndex, 72 void AudioBus::setChannelMemory(unsigned channelIndex,
73 float* storage, 73 float* storage,
74 size_t length) { 74 size_t length) {
75 if (channelIndex < m_channels.size()) { 75 if (channelIndex < m_channels.size()) {
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517 517
518 // Number of frames to de-zipper before we are close enough to the target 518 // Number of frames to de-zipper before we are close enough to the target
519 // gain. 519 // gain.
520 // FIXME: framesToDezipper could be smaller when target gain is close enough 520 // FIXME: framesToDezipper could be smaller when target gain is close enough
521 // within this process loop. 521 // within this process loop.
522 unsigned framesToDezipper = (gainDiff < epsilon) ? 0 : framesToProcess; 522 unsigned framesToDezipper = (gainDiff < epsilon) ? 0 : framesToProcess;
523 523
524 if (framesToDezipper) { 524 if (framesToDezipper) {
525 if (!m_dezipperGainValues.get() || 525 if (!m_dezipperGainValues.get() ||
526 m_dezipperGainValues->size() < framesToDezipper) 526 m_dezipperGainValues->size() < framesToDezipper)
527 m_dezipperGainValues = makeUnique<AudioFloatArray>(framesToDezipper); 527 m_dezipperGainValues = WTF::makeUnique<AudioFloatArray>(framesToDezipper);
528 528
529 float* gainValues = m_dezipperGainValues->data(); 529 float* gainValues = m_dezipperGainValues->data();
530 for (unsigned i = 0; i < framesToDezipper; ++i) { 530 for (unsigned i = 0; i < framesToDezipper; ++i) {
531 gain += (totalDesiredGain - gain) * DezipperRate; 531 gain += (totalDesiredGain - gain) * DezipperRate;
532 532
533 // FIXME: If we are clever enough in calculating the framesToDezipper 533 // FIXME: If we are clever enough in calculating the framesToDezipper
534 // value, we can probably get rid of this 534 // value, we can probably get rid of this
535 // DenormalDisabler::flushDenormalFloatToZero() call. 535 // DenormalDisabler::flushDenormalFloatToZero() call.
536 gain = DenormalDisabler::flushDenormalFloatToZero(gain); 536 gain = DenormalDisabler::flushDenormalFloatToZero(gain);
537 *gainValues++ = gain; 537 *gainValues++ = gain;
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758 // If the bus needs no conversion then return as is. 758 // If the bus needs no conversion then return as is.
759 if ((!mixToMono || audioBus->numberOfChannels() == 1) && 759 if ((!mixToMono || audioBus->numberOfChannels() == 1) &&
760 audioBus->sampleRate() == sampleRate) 760 audioBus->sampleRate() == sampleRate)
761 return audioBus; 761 return audioBus;
762 762
763 return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono, 763 return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono,
764 sampleRate); 764 sampleRate);
765 } 765 }
766 766
767 } // namespace blink 767 } // namespace blink
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