Add live mode detection in WebM MediaSource parser.

media/filters/chunk_demuxer.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <deque>
 #include <map>
 #include <string>
@@ skipping 141 matching lines @@
   // Demuxer implementation.
   virtual void Initialize(DemuxerHost* host,
                           const PipelineStatusCB& cb,
                           bool enable_text_tracks) OVERRIDE;
   virtual void Stop(const base::Closure& callback) OVERRIDE;
   virtual void Seek(base::TimeDelta time, const PipelineStatusCB&  cb) OVERRIDE;
   virtual void OnAudioRendererDisabled() OVERRIDE;
   virtual DemuxerStream* GetStream(DemuxerStream::Type type) OVERRIDE;
   virtual base::TimeDelta GetStartTime() const OVERRIDE;
   virtual base::Time GetTimelineOffset() const OVERRIDE;
+  virtual bool IsLiveMode() const OVERRIDE;
 
   // Methods used by an external object to control this demuxer.
   //
   // Indicates that a new Seek() call is on its way. Any pending Reads on the
   // DemuxerStream objects should be aborted immediately inside this call and
   // future Read calls should return kAborted until the Seek() call occurs.
   // This method MUST ALWAYS be called before Seek() is called to signal that
   // the next Seek() call represents the seek point we actually want to return
   // data for.
   // |seek_time| - The presentation timestamp for the seek that triggered this
@@ skipping 108 matching lines @@
   void ReportError_Locked(PipelineStatus error);
 
   // Returns true if any stream has seeked to a time without buffered data.
   bool IsSeekWaitingForData_Locked() const;
 
   // Returns true if all streams can successfully call EndOfStream,
   // false if any can not.
   bool CanEndOfStream_Locked() const;
 
   // SourceState callbacks.
-  void OnSourceInitDone(bool success, base::TimeDelta duration,
-                        base::Time timeline_offset);
+  void OnSourceInitDone(bool success,
+                        base::TimeDelta duration,
+                        base::Time timeline_offset,
+                        bool live_mode);
 
   // Creates a DemuxerStream for the specified |type|.
   // Returns a new ChunkDemuxerStream instance if a stream of this type
   // has not been created before. Returns NULL otherwise.
   ChunkDemuxerStream* CreateDemuxerStream(DemuxerStream::Type type);
 
   void OnNewTextTrack(ChunkDemuxerStream* text_stream,
                       const TextTrackConfig& config);
 
   // Returns true if |source_id| is valid, false otherwise.
@@ skipping 57 matching lines @@
   base::TimeDelta duration_;
 
   // The duration passed to the last SetDuration(). If
   // SetDuration() is never called or an AppendData() call or
   // a EndOfStream() call changes |duration_|, then this
   // variable is set to < 0 to indicate that the |duration_| represents
   // the actual duration instead of a user specified value.
   double user_specified_duration_;
 
   base::Time timeline_offset_;
+  bool live_mode_;
 
   typedef std::map<std::string, SourceState*> SourceStateMap;
   SourceStateMap source_state_map_;
 
   // Used to ensure that (1) config data matches the type and codec provided in
   // AddId(), (2) only 1 audio and 1 video sources are added, and (3) ids may be
   // removed with RemoveID() but can not be re-added (yet).
   std::string source_id_audio_;
   std::string source_id_video_;
 
   // Indicates that splice frame generation is enabled.
   const bool splice_frames_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_