MSE: Notify Blink SourceBuffer on init segment received

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 120 matching lines @@
 // Demuxer implementation that allows chunks of media data to be passed
 // from JavaScript to the media stack.
 class MEDIA_EXPORT ChunkDemuxer : public Demuxer {
  public:
   enum Status {
     kOk,              // ID added w/o error.
     kNotSupported,    // Type specified is not supported.
     kReachedIdLimit,  // Reached ID limit. We can't handle any more IDs.
   };
 
+  typedef base::Closure InitSegmentReceivedCB;
+
   // |open_cb| Run when Initialize() is called to signal that the demuxer
   //   is ready to receive media data via AppenData().
   // |need_key_cb| Run when the demuxer determines that an encryption key is
   //   needed to decrypt the content.
   // |enable_text| Process inband text tracks in the normal way when true,
   //   otherwise ignore them.
   // |log_cb| Run when parsing error messages need to be logged to the error
   //   console.
   // |splice_frames_enabled| Indicates that it's okay to generate splice frames
   //   per the MSE specification.  Renderers must understand DecoderBuffer's
@@ skipping 54 matching lines @@
   void RemoveId(const std::string& id);
 
   // Gets the currently buffered ranges for the specified ID.
   Ranges<base::TimeDelta> GetBufferedRanges(const std::string& id) const;
 
   // Appends media data to the source buffer associated with |id|, applying
   // and possibly updating |*timestamp_offset| during coded frame processing.
   // |append_window_start| and |append_window_end| correspond to the MSE spec's
   // similarly named source buffer attributes that are used in coded frame
   // processing.
+  // |init_segment_received_cb| is run for each newly successfully parsed
+  // initialization segment.
   void AppendData(const std::string& id, const uint8* data, size_t length,
                   base::TimeDelta append_window_start,
                   base::TimeDelta append_window_end,
-                  base::TimeDelta* timestamp_offset);
+                  base::TimeDelta* timestamp_offset,
+                  const InitSegmentReceivedCB& init_segment_received_cb);
 
   // Aborts parsing the current segment and reset the parser to a state where
   // it can accept a new segment.
   // Some pending frames can be emitted during that process. These frames are
   // applied |timestamp_offset|.
   void Abort(const std::string& id,
              base::TimeDelta append_window_start,
              base::TimeDelta append_window_end,
              base::TimeDelta* timestamp_offset);
 
@@ skipping 157 matching lines @@
 
   // 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_