126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
/*
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* Copyright (C) 2011-2020 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. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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(VIDEO)
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#include <wtf/LoggerHelper.h>
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#include <wtf/WeakPtr.h>
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#include <wtf/text/AtomString.h>
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namespace WebCore {
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class Element;
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class HTMLMediaElement;
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class SourceBuffer;
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class TrackBase
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: public RefCounted<TrackBase>
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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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public:
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virtual ~TrackBase() = default;
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enum Type { BaseTrack, TextTrack, AudioTrack, VideoTrack };
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Type type() const { return m_type; }
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virtual Element* element();
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void* opaqueRoot();
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virtual void setMediaElement(WeakPtr<HTMLMediaElement>);
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WeakPtr<HTMLMediaElement> mediaElement() { return m_mediaElement; }
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virtual AtomString id() const { return m_id; }
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virtual void setId(const AtomString& id) { m_id = id; }
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AtomString label() const { return m_label; }
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void setLabel(const AtomString& label) { m_label = label; }
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AtomString validBCP47Language() const { return m_validBCP47Language; }
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AtomString language() const { return m_language; }
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virtual void setLanguage(const AtomString&);
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virtual void clearClient() = 0;
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virtual int uniqueId() const { return m_uniqueId; }
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#if ENABLE(MEDIA_SOURCE)
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SourceBuffer* sourceBuffer() const { return m_sourceBuffer; }
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void setSourceBuffer(SourceBuffer* buffer) { m_sourceBuffer = buffer; }
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#endif
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virtual bool enabled() const = 0;
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#if !RELEASE_LOG_DISABLED
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virtual void setLogger(const Logger&, const void*);
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const Logger& logger() const final { ASSERT(m_logger); return *m_logger.get(); }
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const void* logIdentifier() const final { return m_logIdentifier; }
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WTFLogChannel& logChannel() const final;
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#endif
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protected:
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TrackBase(Type, const AtomString& id, const AtomString& label, const AtomString& language);
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WeakPtr<HTMLMediaElement> m_mediaElement { nullptr };
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#if ENABLE(MEDIA_SOURCE)
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SourceBuffer* m_sourceBuffer { nullptr };
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#endif
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private:
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Type m_type;
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int m_uniqueId;
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AtomString m_id;
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AtomString m_label;
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AtomString m_language;
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AtomString m_validBCP47Language;
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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 { nullptr };
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#endif
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};
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class MediaTrackBase : public TrackBase {
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public:
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const AtomString& kind() const { return m_kind; }
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virtual void setKind(const AtomString&);
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protected:
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MediaTrackBase(Type, const AtomString& id, const AtomString& label, const AtomString& language);
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void setKindInternal(const AtomString&);
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private:
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virtual bool isValidKind(const AtomString&) const = 0;
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AtomString m_kind;
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};
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} // namespace WebCore
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#endif
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