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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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,
* 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_SOURCE)
#include "MediaPlayer.h"
#include "PlatformTimeRanges.h"
#include <wtf/Forward.h>
#include <wtf/ThreadSafeWeakPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class ContentType;
class MediaPlayerPrivateInterface;
class SourceBufferPrivate;
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
class LegacyCDMSession;
#endif
enum class MediaSourceReadyState;
struct MediaSourceConfiguration;
enum class MediaSourcePrivateAddStatus : uint8_t {
Ok,
NotSupported,
ReachedIdLimit
};
enum class MediaSourcePrivateEndOfStreamStatus : uint8_t {
NoError,
NetworkError,
DecodeError
};
class WEBCORE_EXPORT MediaSourcePrivate
: public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<MediaSourcePrivate> {
public:
typedef Vector<String> CodecsArray;
using AddStatus = MediaSourcePrivateAddStatus;
using EndOfStreamStatus = MediaSourcePrivateEndOfStreamStatus;
explicit MediaSourcePrivate(MediaSourcePrivateClient&);
virtual ~MediaSourcePrivate();
RefPtr<MediaSourcePrivateClient> client() const;
virtual RefPtr<MediaPlayerPrivateInterface> player() const = 0;
virtual void setPlayer(MediaPlayerPrivateInterface*) = 0;
virtual void shutdown();
virtual constexpr MediaPlatformType platformType() const = 0;
virtual AddStatus addSourceBuffer(const ContentType&, const MediaSourceConfiguration&, RefPtr<SourceBufferPrivate>&) = 0;
virtual void removeSourceBuffer(SourceBufferPrivate&);
void sourceBufferPrivateDidChangeActiveState(SourceBufferPrivate&, bool active);
virtual void notifyActiveSourceBuffersChanged() = 0;
virtual void durationChanged(const MediaTime&); // Base class method must be called in overrides. Must be thread-safe
virtual void bufferedChanged(const PlatformTimeRanges&); // Base class method must be called in overrides. Must be thread-safe.
virtual void trackBufferedChanged(SourceBufferPrivate&, Vector<PlatformTimeRanges>&&);
virtual MediaPlayer::ReadyState mediaPlayerReadyState() const = 0;
virtual void setMediaPlayerReadyState(MediaPlayer::ReadyState) = 0;
virtual void markEndOfStream(EndOfStreamStatus) { m_isEnded = true; }
virtual void unmarkEndOfStream() { m_isEnded = false; }
bool isEnded() const { return m_isEnded; }
virtual MediaSourceReadyState readyState() const { return m_readyState; }
virtual void setReadyState(MediaSourceReadyState readyState) { m_readyState = readyState; }
void setLiveSeekableRange(const PlatformTimeRanges&);
const PlatformTimeRanges& liveSeekableRange() const;
void clearLiveSeekableRange();
MediaTime currentTime() const;
Ref<MediaTimePromise> waitForTarget(const SeekTarget&);
Ref<MediaPromise> seekToTime(const MediaTime&);
virtual void setTimeFudgeFactor(const MediaTime& fudgeFactor) { m_timeFudgeFactor = fudgeFactor; }
MediaTime timeFudgeFactor() const { return m_timeFudgeFactor; }
MediaTime duration() const;
PlatformTimeRanges buffered() const;
PlatformTimeRanges seekable() const;
bool hasBufferedData() const;
bool hasFutureTime(const MediaTime& currentTime) const;
bool timeIsProgressing() const;
static constexpr MediaTime futureDataThreshold() { return MediaTime { 1001, 24000 }; }
bool hasFutureTime(const MediaTime& currentTime, const MediaTime& threshold) const;
bool hasAudio() const;
bool hasVideo() const;
void setStreaming(bool value) { m_streaming = value; }
bool streaming() const { return m_streaming; }
void setStreamingAllowed(bool value) { m_streamingAllowed = value; }
bool streamingAllowed() const { return m_streamingAllowed; }
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
void setCDMSession(LegacyCDMSession*);
#endif
protected:
MediaSourcePrivate(MediaSourcePrivateClient&, GuaranteedSerialFunctionDispatcher&);
void ensureOnDispatcher(Function<void()>&&) const;
Vector<RefPtr<SourceBufferPrivate>> m_sourceBuffers;
Vector<SourceBufferPrivate*> m_activeSourceBuffers;
std::atomic<bool> m_isEnded { false }; // Set on MediaSource's dispatcher.
std::atomic<MediaSourceReadyState> m_readyState; // Set on MediaSource's dispatcher.
const Ref<GuaranteedSerialFunctionDispatcher> m_dispatcher; // SerialFunctionDispatcher the SourceBufferPrivate/MediaSourcePrivate is running on.
private:
mutable Lock m_lock;
MediaTime m_duration WTF_GUARDED_BY_LOCK(m_lock) { MediaTime::invalidTime() };
PlatformTimeRanges m_buffered WTF_GUARDED_BY_LOCK(m_lock);
PlatformTimeRanges m_liveSeekable WTF_GUARDED_BY_LOCK(m_lock);
std::atomic<bool> m_streaming { false };
std::atomic<bool> m_streamingAllowed { false };
MediaTime m_timeFudgeFactor;
const ThreadSafeWeakPtr<MediaSourcePrivateClient> m_client;
};
String convertEnumerationToString(MediaSourcePrivate::AddStatus);
String convertEnumerationToString(MediaSourcePrivate::EndOfStreamStatus);
} // namespace WebCore
namespace WTF {
template<typename Type> struct LogArgument;
template <>
struct LogArgument<WebCore::MediaSourcePrivate::AddStatus> {
static String toString(const WebCore::MediaSourcePrivate::AddStatus status)
{
return convertEnumerationToString(status);
}
};
template <>
struct LogArgument<WebCore::MediaSourcePrivate::EndOfStreamStatus> {
static String toString(const WebCore::MediaSourcePrivate::EndOfStreamStatus status)
{
return convertEnumerationToString(status);
}
};
} // namespace WTF
#endif
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