cast: Split Rtcp into two for sender and receiver

media/cast/receiver/cast_receiver_impl.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/receiver/cast_receiver_impl.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/trace_event/trace_event.h"
+#include "media/cast/net/rtcp/rtcp_utility.h"
 #include "media/cast/receiver/audio_decoder.h"
 #include "media/cast/receiver/video_decoder.h"
 
 namespace media {
 namespace cast {
 
 scoped_ptr<CastReceiver> CastReceiver::Create(
     scoped_refptr<CastEnvironment> cast_environment,
     const FrameReceiverConfig& audio_config,
     const FrameReceiverConfig& video_config,
@@ skipping 17 matching lines @@
       audio_codec_(audio_config.codec),
       video_codec_(video_config.codec) {}
 
 CastReceiverImpl::~CastReceiverImpl() {}
 
 void CastReceiverImpl::ReceivePacket(scoped_ptr<Packet> packet) {
   const uint8_t* const data = &packet->front();
   const size_t length = packet->size();
 
   uint32_t ssrc_of_sender;
-  if (Rtcp::IsRtcpPacket(data, length)) {
-    ssrc_of_sender = Rtcp::GetSsrcOfSender(data, length);
+  if (IsRtcpPacket(data, length)) {
+    ssrc_of_sender = GetSsrcOfSender(data, length);
   } else if (!RtpParser::ParseSsrc(data, length, &ssrc_of_sender)) {
     VLOG(1) << "Invalid RTP packet.";
     return;
   }
 
   base::WeakPtr<FrameReceiver> target;
   if (ssrc_of_sender == ssrc_of_video_sender_) {
     target = video_receiver_.AsWeakPtr();
   } else if (ssrc_of_sender == ssrc_of_audio_sender_) {
     target = audio_receiver_.AsWeakPtr();
@@ skipping 153 matching lines @@
         "cast_perf_test", "FrameDecoded",
         TRACE_EVENT_SCOPE_THREAD,
         "rtp_timestamp", rtp_timestamp.lower_32_bits());
   }
 
   callback.Run(video_frame, playout_time, is_continuous);
 }
 
 }  // namespace cast
 }  // namespace media