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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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_MEDIA_SOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_MEDIA_SOURCE_H_
#include <memory>
#include "third_party/blink/public/platform/web_media_source.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/core/dom/context_lifecycle_observer.h"
#include "third_party/blink/renderer/core/dom/exception_code.h"
#include "third_party/blink/renderer/core/fileapi/url_registry.h"
#include "third_party/blink/renderer/core/html/media/html_media_source.h"
#include "third_party/blink/renderer/core/html/time_ranges.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/modules/mediasource/source_buffer.h"
#include "third_party/blink/renderer/modules/mediasource/source_buffer_list.h"
namespace blink {
class ExceptionState;
class MediaElementEventQueue;
class WebSourceBuffer;
class MediaSource final : public EventTargetWithInlineData,
public HTMLMediaSource,
public ActiveScriptWrappable<MediaSource>,
public ContextLifecycleObserver {
DEFINE_WRAPPERTYPEINFO();
USING_GARBAGE_COLLECTED_MIXIN(MediaSource);
public:
static const AtomicString& OpenKeyword();
static const AtomicString& ClosedKeyword();
static const AtomicString& EndedKeyword();
static MediaSource* Create(ExecutionContext*);
~MediaSource() override;
static void LogAndThrowDOMException(ExceptionState&,
ExceptionCode error,
const String& message);
static void LogAndThrowTypeError(ExceptionState&, const String&);
// MediaSource.idl methods
SourceBufferList* sourceBuffers() { return source_buffers_.Get(); }
SourceBufferList* activeSourceBuffers() {
return active_source_buffers_.Get();
}
SourceBuffer* addSourceBuffer(const String& type, ExceptionState&);
void removeSourceBuffer(SourceBuffer*, ExceptionState&);
void setDuration(double, ExceptionState&);
DEFINE_ATTRIBUTE_EVENT_LISTENER(sourceopen);
DEFINE_ATTRIBUTE_EVENT_LISTENER(sourceended);
DEFINE_ATTRIBUTE_EVENT_LISTENER(sourceclose);
const AtomicString& readyState() const { return ready_state_; }
void endOfStream(const AtomicString& error, ExceptionState&);
void endOfStream(ExceptionState&);
void setLiveSeekableRange(double start, double end, ExceptionState&);
void clearLiveSeekableRange(ExceptionState&);
static bool isTypeSupported(const String& type);
// HTMLMediaSource
bool AttachToElement(HTMLMediaElement*) override;
void SetWebMediaSourceAndOpen(std::unique_ptr<WebMediaSource>) override;
void Close() override;
bool IsClosed() const override;
double duration() const override;
TimeRanges* Buffered() const override;
TimeRanges* Seekable() const override;
void OnTrackChanged(TrackBase*) override;
// EventTarget interface
const AtomicString& InterfaceName() const override;
ExecutionContext* GetExecutionContext() const override;
// ScriptWrappable
bool HasPendingActivity() const final;
// ContextLifecycleObserver interface
void ContextDestroyed(ExecutionContext*) override;
// URLRegistrable interface
URLRegistry& Registry() const override;
// Used by SourceBuffer.
void OpenIfInEndedState();
bool IsOpen() const;
void SetSourceBufferActive(SourceBuffer*, bool);
HTMLMediaElement* MediaElement() const;
void EndOfStreamAlgorithm(const WebMediaSource::EndOfStreamStatus);
// Used by MediaSourceRegistry.
void AddedToRegistry();
void RemovedFromRegistry();
void Trace(blink::Visitor*) override;
private:
explicit MediaSource(ExecutionContext*);
void SetReadyState(const AtomicString&);
void OnReadyStateChange(const AtomicString&, const AtomicString&);
bool IsUpdating() const;
std::unique_ptr<WebSourceBuffer> CreateWebSourceBuffer(const String& type,
const String& codecs,
ExceptionState&);
void ScheduleEvent(const AtomicString& event_name);
// Implements the duration change algorithm.
// http://w3c.github.io/media-source/#duration-change-algorithm
void DurationChangeAlgorithm(double new_duration, ExceptionState&);
std::unique_ptr<WebMediaSource> web_media_source_;
AtomicString ready_state_;
Member<MediaElementEventQueue> async_event_queue_;
WeakMember<HTMLMediaElement> attached_element_;
Member<SourceBufferList> source_buffers_;
Member<SourceBufferList> active_source_buffers_;
Member<TimeRanges> live_seekable_range_;
int added_to_registry_counter_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASOURCE_MEDIA_SOURCE_H_
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