Implement adaptive target delay extension

media/cast/net/rtp/frame_buffer.cc

 // Copyright 2014 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.
 
 #include "media/cast/net/rtp/frame_buffer.h"
 
 #include "base/logging.h"
 
 namespace media {
 namespace cast {
 
 FrameBuffer::FrameBuffer()
     : frame_id_(0),
       max_packet_id_(0),
       num_packets_received_(0),
+      new_playout_delay_ms_(0),
       is_key_frame_(false),
       total_data_size_(0),
       last_referenced_frame_id_(0),
       packets_() {}
 
 FrameBuffer::~FrameBuffer() {}
 
 void FrameBuffer::InsertPacket(const uint8* payload_data,
                                size_t payload_size,
                                const RtpCastHeader& rtp_header) {
   // Is this the first packet in the frame?
   if (packets_.empty()) {
     frame_id_ = rtp_header.frame_id;
     max_packet_id_ = rtp_header.max_packet_id;
     is_key_frame_ = rtp_header.is_key_frame;
+    new_playout_delay_ms_ = rtp_header.new_playout_delay_ms;
     if (is_key_frame_)
       DCHECK_EQ(rtp_header.frame_id, rtp_header.reference_frame_id);
     last_referenced_frame_id_ = rtp_header.reference_frame_id;
     rtp_timestamp_ = rtp_header.rtp_timestamp;
   }
   // Is this the correct frame?
   if (rtp_header.frame_id != frame_id_)
     return;
 
   // Insert every packet only once.
@@ skipping 25 matching lines @@
   // Frame is complete -> construct.
   if (is_key_frame_)
     frame->dependency = EncodedFrame::KEY;
   else if (frame_id_ == last_referenced_frame_id_)
     frame->dependency = EncodedFrame::INDEPENDENT;
   else
     frame->dependency = EncodedFrame::DEPENDENT;
   frame->frame_id = frame_id_;
   frame->referenced_frame_id = last_referenced_frame_id_;
   frame->rtp_timestamp = rtp_timestamp_;
+  frame->new_playout_delay_ms = new_playout_delay_ms_;
 
   // Build the data vector.
   frame->data.clear();
   frame->data.reserve(total_data_size_);
   PacketMap::const_iterator it;
   for (it = packets_.begin(); it != packets_.end(); ++it)
     frame->data.insert(frame->data.end(), it->second.begin(), it->second.end());
   return true;
 }
 
 }  // namespace cast
 }  // namespace media