media/cast/rtp_receiver/receiver_stats.h

   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_RTP_RECEIVER_RECEIVER_STATS_H_
   6 #define MEDIA_CAST_RTP_RECEIVER_RECEIVER_STATS_H_
   7
   8 #include "base/time/tick_clock.h"
   9 #include "base/time/time.h"
  10 #include "media/cast/rtcp/rtcp.h"
  11 #include "media/cast/rtp_receiver/rtp_receiver_defines.h"
  12
  13 namespace media {
  14 namespace cast {
  15
  16 class ReceiverStats : public RtpReceiverStatistics {
  17  public:
  18   explicit ReceiverStats(base::TickClock* clock);
  19   virtual ~ReceiverStats() OVERRIDE;
  20
  21   virtual void GetStatistics(uint8* fraction_lost,
  22                              uint32* cumulative_lost,  // 24 bits valid.
  23                              uint32* extended_high_sequence_number,
  24                              uint32* jitter) OVERRIDE;
  25   void UpdateStatistics(const RtpCastHeader& header);
  26
  27  private:
  28   base::TickClock* const clock_;  // Not owned by this class.
  29
  30   // Global metrics.
  31   uint16 min_sequence_number_;
  32   uint16 max_sequence_number_;
  33   uint32 total_number_packets_;
  34   uint16 sequence_number_cycles_;
  35   base::TimeDelta last_received_timestamp_;
  36   base::TimeTicks last_received_packet_time_;
  37   base::TimeDelta jitter_;
  38
  39   // Intermediate metrics - between RTCP reports.
  40   int interval_min_sequence_number_;
  41   int interval_number_packets_;
  42   int interval_wrap_count_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(ReceiverStats);
  45 };
  46
  47 }  // namespace cast
  48 }  // namespace media
  49
  50 #endif  // MEDIA_CAST_RTP_RECEIVER_RECEIVER_STATS_H_