Cast: IPC from browser to renderer to send packet events from transport to cast library.

media/cast/transport/rtp_sender/rtp_packetizer/rtp_packetizer.cc

 // 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.
 
 #include "media/cast/transport/rtp_sender/rtp_packetizer/rtp_packetizer.h"
 
 #include "base/big_endian.h"
 #include "base/logging.h"
 #include "media/cast/transport/pacing/paced_sender.h"
 
@@ skipping 13 matching lines @@
       max_payload_length(kMaxIpPacketSize - 28),  // Default is IP-v4/UDP.
       sequence_number(0),
       frequency(8000),
       ssrc(0),
       channels(0) {}
 
 RtpPacketizerConfig::~RtpPacketizerConfig() {}
 
 RtpPacketizer::RtpPacketizer(PacedSender* const transport,
                              PacketStorage* packet_storage,
-                             RtpPacketizerConfig rtp_packetizer_config)
+                             RtpPacketizerConfig rtp_packetizer_config,
+                             base::TickClock* clock,
+                             LoggingImpl* logging)
     : config_(rtp_packetizer_config),
       transport_(transport),
       packet_storage_(packet_storage),
+      clock_(clock),
+      logging_(logging),
       sequence_number_(config_.sequence_number),
       rtp_timestamp_(0),
       packet_id_(0),
       send_packets_count_(0),
       send_octet_count_(0) {
   DCHECK(transport) << "Invalid argument";
 }
 
 RtpPacketizer::~RtpPacketizer() {}
 
@@ skipping 90 matching lines @@
     ++packet_id_;
     data_iter += payload_length;
 
     // Update stats.
     ++send_packets_count_;
     send_octet_count_ += payload_length;
     packets.push_back(packet);
   }
   DCHECK(packet_id_ == num_packets) << "Invalid state";
 
+  logging_->InsertPacketListEvent(
+      clock_->NowTicks(),
+      config_.audio ? kAudioPacketSentToPacer : kVideoPacketSentToPacer,
+      packets);
+
   // Send to network.
   transport_->SendPackets(packets);
 
   // Prepare for next frame.
   packet_id_ = 0;
 }
 
 void RtpPacketizer::BuildCommonRTPheader(Packet* packet,
                                          bool marker_bit,
                                          uint32 time_stamp) {
   packet->push_back(0x80);
   packet->push_back(static_cast<uint8>(config_.payload_type) |
                     (marker_bit ? kRtpMarkerBitMask : 0));
   size_t start_size = packet->size();
   packet->resize(start_size + 10);
   base::BigEndianWriter big_endian_writer(
       reinterpret_cast<char*>(&((*packet)[start_size])), 10);
   big_endian_writer.WriteU16(sequence_number_);
   big_endian_writer.WriteU32(time_stamp);
   big_endian_writer.WriteU32(config_.ssrc);
   ++sequence_number_;
 }
 
 }  // namespace transport
 }  // namespace cast
 }  // namespace media