media/cast/net/rtp/packet_storage.h

   1 // Copyright 2014 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 <deque>
   9
  10 #include "base/basictypes.h"
  11 #include "media/cast/net/pacing/paced_sender.h"
  12
  13 namespace media {
  14 namespace cast {
  15
  16 class PacketStorage {
  17  public:
  18   PacketStorage();
  19   virtual ~PacketStorage();
  20
  21   // Store all of the packets for a frame.
  22   void StoreFrame(uint32 frame_id, const SendPacketVector& packets);
  23
  24   // Release all of the packets for a frame.
  25   void ReleaseFrame(uint32 frame_id);
  26
  27   // Returns a list of packets for a frame indexed by a 8-bits ID.
  28   // It is the lowest 8 bits of a frame ID.
  29   // Returns NULL if the frame cannot be found.
  30   const SendPacketVector* GetFrame8(uint8 frame_id_8bits) const;
  31
  32   // Get the number of stored frames.
  33   size_t GetNumberOfStoredFrames() const;
  34
  35  private:
  36   std::deque<SendPacketVector> frames_;
  37   uint32 first_frame_id_in_list_;
  38
  39   // The number of frames whose packets have been released, but the entry in the
  40   // |frames_| queue has not yet been popped.
  41   size_t zombie_count_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(PacketStorage);
  44 };
  45
  46 }  // namespace cast
  47 }  // namespace media
  48
  49 #endif  // MEDIA_CAST_NET_RTP_SENDER_PACKET_STORAGE_PACKET_STORAGE_H_