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/*
* 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.
*/
#pragma once
#if ENABLE(MEDIA_STREAM)
#include <wtf/Function.h>
#include <wtf/LoggerHelper.h>
namespace WTF {
class MediaTime;
}
namespace WebCore {
class AudioStreamDescription;
class LibWebRTCAudioModule;
class PlatformAudioData;
class WEBCORE_EXPORT AudioMediaStreamTrackRenderer : public LoggerHelper {
WTF_MAKE_FAST_ALLOCATED;
public:
struct Init {
Function<void()>&& crashCallback;
#if USE(LIBWEBRTC)
RefPtr<LibWebRTCAudioModule> audioModule;
#endif
#if !RELEASE_LOG_DISABLED
const Logger& logger;
const void* logIdentifier;
#endif
};
static std::unique_ptr<AudioMediaStreamTrackRenderer> create(Init&&);
virtual ~AudioMediaStreamTrackRenderer() = default;
virtual void start(CompletionHandler<void()>&&) = 0;
virtual void stop() = 0;
virtual void clear() = 0;
// May be called on a background thread. It should only be called after start/before stop is called.
virtual void pushSamples(const WTF::MediaTime&, const PlatformAudioData&, const AudioStreamDescription&, size_t) = 0;
virtual void setVolume(float);
float volume() const;
virtual void setAudioOutputDevice(const String&);
protected:
explicit AudioMediaStreamTrackRenderer(Init&&);
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final;
const void* logIdentifier() const final;
const char* logClassName() const final;
WTFLogChannel& logChannel() const final;
#endif
#if USE(LIBWEBRTC)
LibWebRTCAudioModule* audioModule();
#endif
void crashed();
private:
// Main thread writable members
float m_volume { 1 };
Function<void()> m_crashCallback;
#if USE(LIBWEBRTC)
RefPtr<LibWebRTCAudioModule> m_audioModule;
#endif
#if !RELEASE_LOG_DISABLED
Ref<const Logger> m_logger;
const void* m_logIdentifier;
#endif
};
inline void AudioMediaStreamTrackRenderer::setVolume(float volume)
{
m_volume = volume;
}
inline float AudioMediaStreamTrackRenderer::volume() const
{
return m_volume;
}
inline void AudioMediaStreamTrackRenderer::crashed()
{
if (m_crashCallback)
m_crashCallback();
}
#if USE(LIBWEBRTC)
inline LibWebRTCAudioModule* AudioMediaStreamTrackRenderer::audioModule()
{
return m_audioModule.get();
}
#endif
#if !RELEASE_LOG_DISABLED
inline const Logger& AudioMediaStreamTrackRenderer::logger() const
{
return m_logger.get();
}
inline const void* AudioMediaStreamTrackRenderer::logIdentifier() const
{
return m_logIdentifier;
}
inline const char* AudioMediaStreamTrackRenderer::logClassName() const
{
return "AudioMediaStreamTrackRenderer";
}
#endif
inline void AudioMediaStreamTrackRenderer::setAudioOutputDevice(const String&)
{
}
}
#endif // ENABLE(MEDIA_STREAM)
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