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/*
* Copyright (C) 2023 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(MANAGED_MEDIA_SOURCE)
#include "MediaSource.h"
#include "Timer.h"
#include <optional>
namespace WebCore {
class ManagedMediaSource final : public MediaSource {
WTF_MAKE_ISO_ALLOCATED(ManagedMediaSource);
public:
static Ref<ManagedMediaSource> create(ScriptExecutionContext&);
~ManagedMediaSource();
enum class PreferredQuality { Low, Medium, High };
ExceptionOr<PreferredQuality> quality() const;
static bool isTypeSupported(ScriptExecutionContext&, const String& type);
bool streaming() const { return m_streaming; }
bool streamingAllowed() const { return m_streamingAllowed; }
bool isManaged() const final { return true; }
private:
explicit ManagedMediaSource(ScriptExecutionContext&);
void monitorSourceBuffers() final;
bool isOpen() const final;
bool isBuffered(const PlatformTimeRanges&) const;
void setStreaming(bool);
void streamingTimerFired();
void ensurePrefsRead();
bool m_streaming { false };
std::optional<double> m_lowThreshold;
std::optional<double> m_highThreshold;
Timer m_streamingTimer;
bool m_streamingAllowed { true };
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ManagedMediaSource)
static bool isType(const WebCore::MediaSource& mediaSource) { return mediaSource.isManaged(); }
SPECIALIZE_TYPE_TRAITS_END()
#endif
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