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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef MEDIA_CAST_NET_RTP_SENDER_PACKET_STORAGE_PACKET_STORAGE_H_
      6 #define MEDIA_CAST_NET_RTP_SENDER_PACKET_STORAGE_PACKET_STORAGE_H_
      7 
      8 #include <list>
      9 #include <map>
     10 #include <vector>
     11 
     12 #include "base/basictypes.h"
     13 #include "base/memory/linked_ptr.h"
     14 #include "base/memory/scoped_ptr.h"
     15 #include "base/time/tick_clock.h"
     16 #include "base/time/time.h"
     17 #include "media/cast/cast_config.h"
     18 
     19 namespace media {
     20 namespace cast {
     21 
     22 class StoredPacket;
     23 typedef std::map<uint32, linked_ptr<StoredPacket> > PacketMap;
     24 typedef std::multimap<base::TimeTicks, uint32> TimeToPacketMap;
     25 
     26 class PacketStorage {
     27  public:
     28   static const int kMaxStoredPackets = 1000;
     29 
     30   PacketStorage(base::TickClock* clock, int max_time_stored_ms);
     31   virtual ~PacketStorage();
     32 
     33   void StorePacket(uint32 frame_id, uint16 packet_id, const Packet* packet);
     34 
     35   // Copies all missing packets into the packet list.
     36   PacketList GetPackets(
     37       const MissingFramesAndPacketsMap& missing_frames_and_packets);
     38 
     39   // Copies packet into the packet list.
     40   bool GetPacket(uint8 frame_id, uint16 packet_id, PacketList* packets);
     41 
     42  private:
     43   void CleanupOldPackets(base::TimeTicks now);
     44 
     45   base::TickClock* const clock_;  // Not owned by this class.
     46   base::TimeDelta max_time_stored_;
     47   PacketMap stored_packets_;
     48   TimeToPacketMap time_to_packet_map_;
     49   std::list<linked_ptr<StoredPacket> > free_packets_;
     50 };
     51 
     52 }  // namespace cast
     53 }  // namespace media
     54 
     55 #endif  // MEDIA_CAST_NET_RTP_SENDER_PACKET_STORAGE_PACKET_STORAGE_H_
     56