Source/WebCore/platform/mediastream/mac/MockRealtimeAudioSourceMac.h

/*
 * Copyright (C) 2016-2018 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.
 * 3. Neither the name of Ericsson nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER 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,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#if ENABLE(MEDIA_STREAM)

#include "MockRealtimeAudioSource.h"
#include <CoreAudio/CoreAudioTypes.h>
#include <wtf/Vector.h>

OBJC_CLASS AVAudioPCMBuffer;
typedef struct OpaqueCMClock* CMClockRef;
typedef const struct opaqueCMFormatDescription* CMFormatDescriptionRef;

namespace WebCore {

class WebAudioBufferList;
class WebAudioSourceProviderAVFObjC;

class MockRealtimeAudioSourceMac final : public MockRealtimeAudioSource {
private:
    friend class MockRealtimeAudioSource;
    MockRealtimeAudioSourceMac(String&& deviceID, String&& name, String&& hashSalt);

    void settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag>) final;
    Optional<Vector<int>> discreteSampleRates() const final { return { { 44100, 48000 } }; }

    void emitSampleBuffers(uint32_t);
    void render(Seconds) final;
    void reconfigure();

    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;
};

} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)