Cast:Moving netwrok sender related code to a designated folder

media/cast/rtp_sender/rtp_packetizer/rtp_packetizer.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_CAST_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_
-#define MEDIA_CAST_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_
-
-#include <cmath>
-#include <list>
-#include <map>
-
-#include "base/time/time.h"
-#include "media/cast/rtp_common/rtp_defines.h"
-#include "media/cast/rtp_sender/packet_storage/packet_storage.h"
-#include "media/cast/rtp_sender/rtp_packetizer/rtp_packetizer_config.h"
-
-namespace media {
-namespace cast {
-
-class PacedPacketSender;
-
-// This object is only called from the main cast thread.
-// This class break encoded audio and video frames into packets and add an RTP
-// header to each packet.
-class RtpPacketizer {
- public:
-  RtpPacketizer(PacedPacketSender* transport,
-                PacketStorage* packet_storage,
-                RtpPacketizerConfig rtp_packetizer_config);
-  ~RtpPacketizer();
-
-  // The video_frame objects ownership is handled by the main cast thread.
-  void IncomingEncodedVideoFrame(const EncodedVideoFrame* video_frame,
-                                 const base::TimeTicks& capture_time);
-
-  // The audio_frame objects ownership is handled by the main cast thread.
-  void IncomingEncodedAudioFrame(const EncodedAudioFrame* audio_frame,
-                                 const base::TimeTicks& recorded_time);
-
-  bool LastSentTimestamp(base::TimeTicks* time_sent,
-                         uint32* rtp_timestamp) const;
-
-  // Return the next sequence number, and increment by one. Enables unique
-  // incremental sequence numbers for every packet (including retransmissions).
-  uint16 NextSequenceNumber();
-
-  int send_packets_count() { return send_packets_count_; }
-
-  size_t send_octet_count() { return send_octet_count_; }
-
- private:
-  void Cast(bool is_key, uint32 frame_id, uint32 reference_frame_id,
-            uint32 timestamp, const std::string& data);
-
-  void BuildCommonRTPheader(std::vector<uint8>* packet, bool marker_bit,
-      uint32 time_stamp);
-
-  RtpPacketizerConfig config_;
-  PacedPacketSender* transport_;
-  PacketStorage* packet_storage_;
-
-  base::TimeTicks time_last_sent_rtp_timestamp_;
-  uint16 sequence_number_;
-  uint32 rtp_timestamp_;
-  uint16 packet_id_;
-
-  int send_packets_count_;
-  size_t send_octet_count_;
-};
-
-}  // namespace cast
-}  // namespace media
-
-#endif  // MEDIA_CAST_RTP_SENDER_RTP_PACKETIZER_RTP_PACKETIZER_H_