133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(MEDIA_STREAM)
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#include <wtf/Function.h>
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#include <wtf/LoggerHelper.h>
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namespace WTF {
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class MediaTime;
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}
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namespace WebCore {
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class AudioStreamDescription;
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class PlatformAudioData;
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class WEBCORE_EXPORT AudioMediaStreamTrackRenderer : public LoggerHelper {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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static std::unique_ptr<AudioMediaStreamTrackRenderer> create();
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virtual ~AudioMediaStreamTrackRenderer() = default;
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virtual void start(CompletionHandler<void()>&&) = 0;
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virtual void stop() = 0;
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virtual void clear() = 0;
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// May be called on a background thread. It should only be called after start/before stop is called.
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virtual void pushSamples(const WTF::MediaTime&, const PlatformAudioData&, const AudioStreamDescription&, size_t) = 0;
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virtual void setVolume(float);
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float volume() const;
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virtual void setAudioOutputDevice(const String&);
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#if !RELEASE_LOG_DISABLED
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void setLogger(const Logger&, const void*);
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#endif
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using RendererCreator = std::unique_ptr<AudioMediaStreamTrackRenderer> (*)();
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static void setCreator(RendererCreator);
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void setCrashCallback(Function<void()>&& callback) { m_crashCallback = WTFMove(callback); }
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protected:
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#if !RELEASE_LOG_DISABLED
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const Logger& logger() const final;
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const void* logIdentifier() const final;
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const char* logClassName() const final;
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WTFLogChannel& logChannel() const final;
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#endif
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void crashed();
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private:
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static RendererCreator m_rendererCreator;
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// Main thread writable members
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float m_volume { 1 };
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Function<void()> m_crashCallback;
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#if !RELEASE_LOG_DISABLED
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RefPtr<const Logger> m_logger;
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const void* m_logIdentifier;
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#endif
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};
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inline void AudioMediaStreamTrackRenderer::setVolume(float volume)
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{
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m_volume = volume;
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}
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inline float AudioMediaStreamTrackRenderer::volume() const
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{
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return m_volume;
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}
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inline void AudioMediaStreamTrackRenderer::crashed()
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{
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if (m_crashCallback)
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m_crashCallback();
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}
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#if !RELEASE_LOG_DISABLED
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inline const Logger& AudioMediaStreamTrackRenderer::logger() const
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{
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return *m_logger;
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}
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inline const void* AudioMediaStreamTrackRenderer::logIdentifier() const
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{
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return m_logIdentifier;
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}
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inline const char* AudioMediaStreamTrackRenderer::logClassName() const
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{
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return "AudioMediaStreamTrackRenderer";
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}
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#endif
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inline void AudioMediaStreamTrackRenderer::setAudioOutputDevice(const String&)
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{
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}
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}
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#endif // ENABLE(MEDIA_STREAM)
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