| /* |
| * Copyright (C) 2016-2019 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. ``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 |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(MEDIA_STREAM) |
| |
| #include "BaseAudioSharedUnit.h" |
| #include <CoreAudio/CoreAudioTypes.h> |
| #include <wtf/RunLoop.h> |
| #include <wtf/Vector.h> |
| #include <wtf/WorkQueue.h> |
| |
| OBJC_CLASS AVAudioPCMBuffer; |
| typedef struct OpaqueCMClock* CMClockRef; |
| typedef const struct opaqueCMFormatDescription* CMFormatDescriptionRef; |
| |
| namespace WebCore { |
| |
| class WebAudioBufferList; |
| class WebAudioSourceProviderCocoa; |
| |
| class MockAudioSharedUnit final : public BaseAudioSharedUnit { |
| public: |
| WEBCORE_EXPORT static MockAudioSharedUnit& singleton(); |
| MockAudioSharedUnit(); |
| |
| void setDeviceID(const String& deviceID) { setCaptureDevice(String { deviceID }, 0); } |
| |
| private: |
| bool hasAudioUnit() const final; |
| void captureDeviceChanged() final; |
| OSStatus reconfigureAudioUnit() final; |
| void resetSampleRate() final; |
| |
| void cleanupAudioUnit() final; |
| OSStatus startInternal() final; |
| void stopInternal() final; |
| bool isProducingData() const final; |
| |
| void delaySamples(Seconds) final; |
| |
| CapabilityValueOrRange sampleRateCapacities() const final { return CapabilityValueOrRange(44100, 48000); } |
| |
| void tick(); |
| |
| void render(Seconds); |
| void emitSampleBuffers(uint32_t frameCount); |
| void reconfigure(); |
| |
| static Seconds renderInterval() { return 60_ms; } |
| |
| std::unique_ptr<WebAudioBufferList> m_audioBufferList; |
| |
| uint32_t m_maximiumFrameCount; |
| uint64_t m_samplesEmitted { 0 }; |
| uint64_t m_samplesRendered { 0 }; |
| |
| RetainPtr<CMFormatDescriptionRef> m_formatDescription; |
| AudioStreamBasicDescription m_streamFormat; |
| |
| Vector<float> m_bipBopBuffer; |
| bool m_hasAudioUnit { false }; |
| |
| RunLoop::Timer<MockAudioSharedUnit> m_timer; |
| MonotonicTime m_lastRenderTime { MonotonicTime::nan() }; |
| MonotonicTime m_delayUntil; |
| |
| Ref<WorkQueue> m_workQueue; |
| unsigned m_channelCount { 2 }; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(MEDIA_STREAM) |
| |