256 lines
8.8 KiB
C++
256 lines
8.8 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. All rights reserved.
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* Copyright (C) 2013-2020 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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(MEDIA_SOURCE)
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#include "ActiveDOMObject.h"
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#include "AudioTrack.h"
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#include "EventTarget.h"
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#include "ExceptionOr.h"
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#include "SourceBufferPrivate.h"
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#include "SourceBufferPrivateClient.h"
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#include "TextTrack.h"
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#include "Timer.h"
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#include "VideoTrack.h"
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#include <wtf/LoggerHelper.h>
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namespace WebCore {
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class AudioTrackList;
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class BufferSource;
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class MediaSource;
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class PlatformTimeRanges;
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class SourceBufferPrivate;
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class TextTrackList;
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class TimeRanges;
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class VideoTrackList;
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class SourceBuffer final
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: public RefCounted<SourceBuffer>
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, public ActiveDOMObject
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, public EventTargetWithInlineData
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, private SourceBufferPrivateClient
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, private AudioTrackClient
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, private VideoTrackClient
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, private TextTrackClient
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#if !RELEASE_LOG_DISABLED
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, private LoggerHelper
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#endif
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{
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WTF_MAKE_ISO_ALLOCATED(SourceBuffer);
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public:
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static Ref<SourceBuffer> create(Ref<SourceBufferPrivate>&&, MediaSource*);
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virtual ~SourceBuffer();
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bool updating() const { return m_updating; }
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ExceptionOr<Ref<TimeRanges>> buffered() const;
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double timestampOffset() const;
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ExceptionOr<void> setTimestampOffset(double);
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VideoTrackList& videoTracks();
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VideoTrackList* videoTracksIfExists() const { return m_videoTracks.get(); }
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AudioTrackList& audioTracks();
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AudioTrackList* audioTracksIfExists() const { return m_audioTracks.get(); }
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TextTrackList& textTracks();
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TextTrackList* textTracksIfExists() const { return m_textTracks.get(); }
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double appendWindowStart() const;
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ExceptionOr<void> setAppendWindowStart(double);
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double appendWindowEnd() const;
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ExceptionOr<void> setAppendWindowEnd(double);
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ExceptionOr<void> appendBuffer(const BufferSource&);
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ExceptionOr<void> abort();
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ExceptionOr<void> remove(double start, double end);
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ExceptionOr<void> remove(const MediaTime&, const MediaTime&);
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ExceptionOr<void> changeType(const String&);
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const TimeRanges& bufferedInternal() const { ASSERT(m_private->buffered()); return *m_private->buffered(); }
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void abortIfUpdating();
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void removedFromMediaSource();
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void seekToTime(const MediaTime&);
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bool canPlayThroughRange(PlatformTimeRanges&);
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bool hasVideo() const;
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bool active() const { return m_active; }
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// EventTarget
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ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
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using RefCounted::ref;
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using RefCounted::deref;
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Document& document() const;
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enum class AppendMode { Segments, Sequence };
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AppendMode mode() const { return m_mode; }
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ExceptionOr<void> setMode(AppendMode);
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WEBCORE_EXPORT void setShouldGenerateTimestamps(bool flag);
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bool isBufferedDirty() const;
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void setBufferedDirty(bool flag);
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MediaTime highestPresentationTimestamp() const;
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void readyStateChanged();
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void setMediaSourceEnded(bool isEnded);
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#if !RELEASE_LOG_DISABLED
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const Logger& logger() const final { return m_logger.get(); }
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const void* logIdentifier() const final { return m_logIdentifier; }
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const char* logClassName() const final { return "SourceBuffer"; }
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WTFLogChannel& logChannel() const final;
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#endif
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private:
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SourceBuffer(Ref<SourceBufferPrivate>&&, MediaSource*);
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void refEventTarget() final { ref(); }
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void derefEventTarget() final { deref(); }
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// ActiveDOMObject.
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void stop() final;
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const char* activeDOMObjectName() const final;
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bool virtualHasPendingActivity() const final;
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// SourceBufferPrivateClient
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void sourceBufferPrivateDidReceiveInitializationSegment(InitializationSegment&&, CompletionHandler<void()>&&) final;
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void sourceBufferPrivateStreamEndedWithDecodeError() final;
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void sourceBufferPrivateAppendError(bool decodeError) final;
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void sourceBufferPrivateAppendComplete(AppendResult) final;
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void sourceBufferPrivateHighestPresentationTimestampChanged(const MediaTime&) final;
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void sourceBufferPrivateDurationChanged(const MediaTime& duration) final;
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void sourceBufferPrivateDidParseSample(double sampleDuration) final;
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void sourceBufferPrivateDidDropSample() final;
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void sourceBufferPrivateBufferedDirtyChanged(bool) final;
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void sourceBufferPrivateDidReceiveRenderingError(int64_t errorCode) final;
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void sourceBufferPrivateReportExtraMemoryCost(uint64_t) final;
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// AudioTrackClient
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void audioTrackEnabledChanged(AudioTrack&) final;
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// VideoTrackClient
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void videoTrackSelectedChanged(VideoTrack&) final;
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// TextTrackClient
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void textTrackKindChanged(TextTrack&) final;
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void textTrackModeChanged(TextTrack&) final;
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void textTrackAddCues(TextTrack&, const TextTrackCueList&) final;
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void textTrackRemoveCues(TextTrack&, const TextTrackCueList&) final;
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void textTrackAddCue(TextTrack&, TextTrackCue&) final;
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void textTrackRemoveCue(TextTrack&, TextTrackCue&) final;
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// EventTarget
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EventTargetInterface eventTargetInterface() const final { return SourceBufferEventTargetInterfaceType; }
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bool isRemoved() const;
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void scheduleEvent(const AtomString& eventName);
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ExceptionOr<void> appendBufferInternal(const unsigned char*, unsigned);
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void appendBufferTimerFired();
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void resetParserState();
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void setActive(bool);
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bool validateInitializationSegment(const InitializationSegment&);
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uint64_t maximumBufferSize() const;
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void monitorBufferingRate();
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void removeTimerFired();
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void reportExtraMemoryAllocated(uint64_t extraMemory);
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void appendError(bool);
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bool hasAudio() const;
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void rangeRemoval(const MediaTime&, const MediaTime&);
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friend class Internals;
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WEBCORE_EXPORT void bufferedSamplesForTrackId(const AtomString&, CompletionHandler<void(Vector<String>&&)>&&);
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WEBCORE_EXPORT void enqueuedSamplesForTrackID(const AtomString&, CompletionHandler<void(Vector<String>&&)>&&);
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WEBCORE_EXPORT MediaTime minimumUpcomingPresentationTimeForTrackID(const AtomString&);
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WEBCORE_EXPORT void setMaximumQueueDepthForTrackID(const AtomString&, uint64_t);
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Ref<SourceBufferPrivate> m_private;
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MediaSource* m_source;
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AppendMode m_mode { AppendMode::Segments };
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Vector<unsigned char> m_pendingAppendData;
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Timer m_appendBufferTimer;
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RefPtr<VideoTrackList> m_videoTracks;
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RefPtr<AudioTrackList> m_audioTracks;
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RefPtr<TextTrackList> m_textTracks;
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Vector<AtomString> m_videoCodecs;
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Vector<AtomString> m_audioCodecs;
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Vector<AtomString> m_textCodecs;
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MediaTime m_appendWindowStart;
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MediaTime m_appendWindowEnd;
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MediaTime m_highestPresentationTimestamp;
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enum AppendStateType { WaitingForSegment, ParsingInitSegment, ParsingMediaSegment };
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AppendStateType m_appendState;
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MonotonicTime m_timeOfBufferingMonitor;
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double m_bufferedSinceLastMonitor { 0 };
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double m_averageBufferRate { 0 };
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bool m_bufferedDirty { true };
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uint64_t m_reportedExtraMemoryCost { 0 };
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MediaTime m_pendingRemoveStart;
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MediaTime m_pendingRemoveEnd;
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Timer m_removeTimer;
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bool m_updating { false };
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bool m_receivedFirstInitializationSegment { false };
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bool m_active { false };
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bool m_shouldGenerateTimestamps { false };
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bool m_pendingInitializationSegmentForChangeType { false };
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#if !RELEASE_LOG_DISABLED
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Ref<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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} // namespace WebCore
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#endif
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