MSE: Notify Blink SourceBuffer on init segment received

media/blink/websourcebuffer_impl.h

 // Copyright 2013 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_BLINK_WEBSOURCEBUFFER_IMPL_H_
 #define MEDIA_BLINK_WEBSOURCEBUFFER_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/time/time.h"
 #include "third_party/WebKit/public/platform/WebSourceBuffer.h"
 
 namespace media {
 class ChunkDemuxer;
 
 class WebSourceBufferImpl : public blink::WebSourceBuffer {
  public:
   WebSourceBufferImpl(const std::string& id, ChunkDemuxer* demuxer);
   virtual ~WebSourceBufferImpl();
 
   // blink::WebSourceBuffer implementation.
+  virtual void setClient(blink::WebSourceBufferClient* client);
   virtual bool setMode(AppendMode mode);
   virtual blink::WebTimeRanges buffered();
   virtual void append(
       const unsigned char* data,
       unsigned length,
       double* timestamp_offset);
   virtual void abort();
   virtual void remove(double start, double end);
   virtual bool setTimestampOffset(double offset);
   virtual void setAppendWindowStart(double start);
   virtual void setAppendWindowEnd(double end);
   virtual void removedFromMediaSource();
 
  private:
+  // Demuxer callback handler to process an initialization segment received
+  // during an append() call.
+  // BIG TODO: Add parameters here and in WebSourceBufferClient/SourceBuffer
+  // when migrating the algorithm impl to blink.
+  void InitSegmentReceived();
+
   std::string id_;
   ChunkDemuxer* demuxer_;  // Owned by WebMediaPlayerImpl.
 
+  blink::WebSourceBufferClient* client_;
+
   // Controls the offset applied to timestamps when processing appended media
   // segments. It is initially 0, which indicates that no offset is being
   // applied. Both setTimestampOffset() and append() may update this value.
   base::TimeDelta timestamp_offset_;
 
   base::TimeDelta append_window_start_;
   base::TimeDelta append_window_end_;
 
   DISALLOW_COPY_AND_ASSIGN(WebSourceBufferImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBSOURCEBUFFER_IMPL_H_