81 lines
3.0 KiB
C++
81 lines
3.0 KiB
C++
/*
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* Copyright (C) 2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "MockAudioDestinationCocoa.h"
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#if ENABLE(WEB_AUDIO)
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#include "CAAudioStreamDescription.h"
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#include "WebAudioBufferList.h"
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namespace WebCore {
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const int kRenderBufferSize = 128;
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MockAudioDestinationCocoa::MockAudioDestinationCocoa(AudioIOCallback& callback, float sampleRate)
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: AudioDestinationCocoa(callback, 2, sampleRate)
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, m_workQueue(WorkQueue::create("MockAudioDestinationCocoa Render Queue"))
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, m_timer(RunLoop::current(), this, &MockAudioDestinationCocoa::tick)
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{
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}
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MockAudioDestinationCocoa::~MockAudioDestinationCocoa() = default;
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void MockAudioDestinationCocoa::startRendering(CompletionHandler<void(bool)>&& completionHandler)
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{
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m_timer.startRepeating(Seconds { m_numberOfFramesToProcess / sampleRate() });
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setIsPlaying(true);
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callOnMainThread([completionHandler = WTFMove(completionHandler)]() mutable {
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completionHandler(true);
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});
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}
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void MockAudioDestinationCocoa::stopRendering(CompletionHandler<void(bool)>&& completionHandler)
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{
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m_timer.stop();
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setIsPlaying(false);
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callOnMainThread([completionHandler = WTFMove(completionHandler)]() mutable {
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completionHandler(true);
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});
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}
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void MockAudioDestinationCocoa::tick()
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{
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m_workQueue->dispatch([this, protectedThis = makeRef(*this), sampleRate = sampleRate(), numberOfFramesToProcess = m_numberOfFramesToProcess] {
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AudioStreamBasicDescription streamFormat;
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getAudioStreamBasicDescription(streamFormat);
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WebAudioBufferList webAudioBufferList { streamFormat, numberOfFramesToProcess };
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render(0., 0, numberOfFramesToProcess, webAudioBufferList.list());
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});
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}
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} // namespace WebCore
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#endif // ENABLE(WEB_AUDIO)
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