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/*
* Copyright (C) 2017 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.
*/
#pragma once
#if ENABLE(VIDEO_TRACK) && ENABLE(MEDIA_STREAM)
#include "AudioTrackPrivateMediaStream.h"
#include <AudioToolbox/AudioToolbox.h>
#include <CoreAudio/CoreAudioTypes.h>
namespace WebCore {
class AudioSampleDataSource;
class AudioSampleBufferList;
class CAAudioStreamDescription;
class AudioTrackPrivateMediaStreamCocoa final : public AudioTrackPrivateMediaStream, private RealtimeMediaSource::Observer {
WTF_MAKE_NONCOPYABLE(AudioTrackPrivateMediaStreamCocoa)
public:
static RefPtr<AudioTrackPrivateMediaStreamCocoa> create(MediaStreamTrackPrivate& streamTrack)
{
return adoptRef(*new AudioTrackPrivateMediaStreamCocoa(streamTrack));
}
void play();
void pause();
bool isPlaying() { return m_isPlaying; }
void setVolume(float);
float volume() const { return m_volume; }
void setMuted(bool muted) { m_muted = muted; }
bool muted() const { return m_muted; }
private:
AudioTrackPrivateMediaStreamCocoa(MediaStreamTrackPrivate&);
~AudioTrackPrivateMediaStreamCocoa();
// RealtimeMediaSource::Observer
void sourceStopped() final;
void audioSamplesAvailable(const MediaTime&, const PlatformAudioData&, const AudioStreamDescription&, size_t) final;
static OSStatus inputProc(void*, AudioUnitRenderActionFlags*, const AudioTimeStamp*, UInt32 inBusNumber, UInt32 numberOfFrames, AudioBufferList*);
OSStatus render(UInt32 sampleCount, AudioBufferList&, UInt32 inBusNumber, const AudioTimeStamp&, AudioUnitRenderActionFlags&);
AudioComponentInstance createAudioUnit(CAAudioStreamDescription&);
void cleanup();
void zeroBufferList(AudioBufferList&, size_t);
void playInternal();
#if !RELEASE_LOG_DISABLED
const char* logClassName() const final { return "AudioTrackPrivateMediaStreamCocoa"; }
#endif
// Audio thread members
AudioComponentInstance m_remoteIOUnit { nullptr };
std::unique_ptr<CAAudioStreamDescription> m_inputDescription;
std::unique_ptr<CAAudioStreamDescription> m_outputDescription;
bool m_isAudioUnitStarted { false };
bool m_hasStartedAutoplay { false };
// Cross thread members
RefPtr<AudioSampleDataSource> m_dataSource;
// Main thread writable members
float m_volume { 1 };
bool m_isPlaying { false };
bool m_autoPlay { false };
bool m_muted { false };
};
}
#endif // ENABLE(VIDEO_TRACK) && ENABLE(MEDIA_STREAM)