/* * Copyright (C) 2020 Apple 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" #include "AudioOutputUnitAdaptor.h" #if ENABLE(WEB_AUDIO) namespace WebCore { AudioOutputUnitAdaptor::AudioOutputUnitAdaptor(AudioUnitRenderer& renderer) : m_outputUnit(0) , m_audioUnitRenderer(renderer) { } AudioOutputUnitAdaptor::~AudioOutputUnitAdaptor() { if (m_outputUnit) AudioComponentInstanceDispose(m_outputUnit); } OSStatus AudioOutputUnitAdaptor::start() { auto result = AudioOutputUnitStart(m_outputUnit); if (result != noErr) WTFLogAlways("ERROR: AudioOutputUnitStart() call failed with error code: %ld", static_cast<long>(result)); return result; } OSStatus AudioOutputUnitAdaptor::stop() { return AudioOutputUnitStop(m_outputUnit); } // DefaultOutputUnit callback OSStatus AudioOutputUnitAdaptor::inputProc(void* userData, AudioUnitRenderActionFlags*, const AudioTimeStamp* timeStamp, UInt32 /*busNumber*/, UInt32 numberOfFrames, AudioBufferList* ioData) { auto* adaptor = static_cast<AudioOutputUnitAdaptor*>(userData); double sampleTime = 0.; uint64_t hostTime = 0; if (timeStamp) { sampleTime = timeStamp->mSampleTime; hostTime = timeStamp->mHostTime; } return adaptor->m_audioUnitRenderer.render(sampleTime, hostTime, numberOfFrames, ioData); } } // namespace WebCore #endif // ENABLE(WEB_AUDIO)