| /* |
| * 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 SourceBuffer_h |
| #define SourceBuffer_h |
| |
| #include <memory> |
| #include "bindings/core/v8/ActiveScriptWrappable.h" |
| #include "core/dom/PausableObject.h" |
| #include "core/typed_arrays/ArrayBufferViewHelpers.h" |
| #include "modules/EventTargetModules.h" |
| #include "modules/mediasource/TrackDefaultList.h" |
| #include "platform/AsyncMethodRunner.h" |
| #include "platform/weborigin/KURL.h" |
| #include "platform/wtf/text/WTFString.h" |
| #include "public/platform/WebSourceBufferClient.h" |
| |
| namespace blink { |
| |
| class AudioTrackList; |
| class DOMArrayBuffer; |
| class DOMArrayBufferView; |
| class ExceptionState; |
| class MediaElementEventQueue; |
| class MediaSource; |
| class TimeRanges; |
| class VideoTrackList; |
| class WebSourceBuffer; |
| |
| class SourceBuffer final : public EventTargetWithInlineData, |
| public ActiveScriptWrappable<SourceBuffer>, |
| public PausableObject, |
| public WebSourceBufferClient { |
| USING_GARBAGE_COLLECTED_MIXIN(SourceBuffer); |
| DEFINE_WRAPPERTYPEINFO(); |
| USING_PRE_FINALIZER(SourceBuffer, Dispose); |
| |
| public: |
| static SourceBuffer* Create(std::unique_ptr<WebSourceBuffer>, |
| MediaSource*, |
| MediaElementEventQueue*); |
| static const AtomicString& SegmentsKeyword(); |
| static const AtomicString& SequenceKeyword(); |
| |
| ~SourceBuffer() override; |
| |
| // SourceBuffer.idl methods |
| const AtomicString& mode() const { return mode_; } |
| void setMode(const AtomicString&, ExceptionState&); |
| bool updating() const { return updating_; } |
| TimeRanges* buffered(ExceptionState&) const; |
| double timestampOffset() const; |
| void setTimestampOffset(double, ExceptionState&); |
| void appendBuffer(DOMArrayBuffer* data, ExceptionState&); |
| void appendBuffer(NotShared<DOMArrayBufferView> data, ExceptionState&); |
| void abort(ExceptionState&); |
| void remove(double start, double end, ExceptionState&); |
| double appendWindowStart() const; |
| void setAppendWindowStart(double, ExceptionState&); |
| double appendWindowEnd() const; |
| void setAppendWindowEnd(double, ExceptionState&); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(updatestart); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(update); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(updateend); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(error); |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(abort); |
| TrackDefaultList* trackDefaults() const { return track_defaults_.Get(); } |
| void setTrackDefaults(TrackDefaultList*, ExceptionState&); |
| |
| AudioTrackList& audioTracks(); |
| VideoTrackList& videoTracks(); |
| |
| void RemovedFromMediaSource(); |
| double HighestPresentationTimestamp(); |
| |
| // ScriptWrappable |
| bool HasPendingActivity() const final; |
| |
| // PausableObject |
| void Pause() override; |
| void Unpause() override; |
| void ContextDestroyed(ExecutionContext*) override; |
| |
| // EventTarget interface |
| ExecutionContext* GetExecutionContext() const override; |
| const AtomicString& InterfaceName() const override; |
| |
| // WebSourceBufferClient interface |
| bool InitializationSegmentReceived(const WebVector<MediaTrackInfo>&) override; |
| void NotifyParseWarning(const ParseWarning) override; |
| |
| virtual void Trace(blink::Visitor*); |
| |
| private: |
| SourceBuffer(std::unique_ptr<WebSourceBuffer>, |
| MediaSource*, |
| MediaElementEventQueue*); |
| void Dispose(); |
| |
| bool IsRemoved() const; |
| void ScheduleEvent(const AtomicString& event_name); |
| |
| bool PrepareAppend(double media_time, size_t new_data_size, ExceptionState&); |
| bool EvictCodedFrames(double media_time, size_t new_data_size); |
| void AppendBufferInternal(double media_time, |
| const unsigned char*, |
| unsigned, |
| ExceptionState&); |
| void AppendBufferAsyncPart(); |
| void AppendError(); |
| |
| void RemoveAsyncPart(); |
| |
| void CancelRemove(); |
| void AbortIfUpdating(); |
| |
| void RemoveMediaTracks(); |
| |
| // Returns MediaElement playback position (i.e. MediaElement.currentTime() ) |
| // in seconds, or NaN if media element is not available. |
| double GetMediaTime(); |
| |
| const TrackDefault* GetTrackDefault( |
| const AtomicString& track_type, |
| const AtomicString& byte_stream_track_id) const; |
| AtomicString DefaultTrackLabel( |
| const AtomicString& track_type, |
| const AtomicString& byte_stream_track_id) const; |
| AtomicString DefaultTrackLanguage( |
| const AtomicString& track_type, |
| const AtomicString& byte_stream_track_id) const; |
| |
| std::unique_ptr<WebSourceBuffer> web_source_buffer_; |
| Member<MediaSource> source_; |
| Member<TrackDefaultList> track_defaults_; |
| Member<MediaElementEventQueue> async_event_queue_; |
| |
| AtomicString mode_; |
| bool updating_; |
| double timestamp_offset_; |
| Member<AudioTrackList> audio_tracks_; |
| Member<VideoTrackList> video_tracks_; |
| double append_window_start_; |
| double append_window_end_; |
| bool first_initialization_segment_received_; |
| |
| Vector<unsigned char> pending_append_data_; |
| size_t pending_append_data_offset_; |
| Member<AsyncMethodRunner<SourceBuffer>> append_buffer_async_part_runner_; |
| |
| double pending_remove_start_; |
| double pending_remove_end_; |
| Member<AsyncMethodRunner<SourceBuffer>> remove_async_part_runner_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // SourceBuffer_h |