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/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_RTP_RTCP_SOURCE_RECEIVE_STATISTICS_IMPL_H_
#define MODULES_RTP_RTCP_SOURCE_RECEIVE_STATISTICS_IMPL_H_
#include "modules/rtp_rtcp/include/receive_statistics.h"
#include <algorithm>
#include <map>
#include <vector>
#include "rtc_base/criticalsection.h"
#include "rtc_base/rate_statistics.h"
#include "system_wrappers/include/ntp_time.h"
namespace webrtc {
class StreamStatisticianImpl : public StreamStatistician {
public:
StreamStatisticianImpl(uint32_t ssrc,
Clock* clock,
RtcpStatisticsCallback* rtcp_callback,
StreamDataCountersCallback* rtp_callback);
virtual ~StreamStatisticianImpl() {}
// |reset| here and in next method restarts calculation of fraction_lost stat.
bool GetStatistics(RtcpStatistics* statistics, bool reset) override;
bool GetActiveStatisticsAndReset(RtcpStatistics* statistics);
void GetDataCounters(size_t* bytes_received,
uint32_t* packets_received) const override;
void GetReceiveStreamDataCounters(
StreamDataCounters* data_counters) const override;
uint32_t BitrateReceived() const override;
bool IsRetransmitOfOldPacket(const RTPHeader& header,
int64_t min_rtt) const override;
bool IsPacketInOrder(uint16_t sequence_number) const override;
void IncomingPacket(const RTPHeader& rtp_header,
size_t packet_length,
bool retransmitted);
void FecPacketReceived(const RTPHeader& header, size_t packet_length);
void SetMaxReorderingThreshold(int max_reordering_threshold);
private:
bool InOrderPacketInternal(uint16_t sequence_number) const;
RtcpStatistics CalculateRtcpStatistics()
RTC_EXCLUSIVE_LOCKS_REQUIRED(stream_lock_);
void UpdateJitter(const RTPHeader& header, NtpTime receive_time);
StreamDataCounters UpdateCounters(const RTPHeader& rtp_header,
size_t packet_length,
bool retransmitted);
const uint32_t ssrc_;
Clock* const clock_;
rtc::CriticalSection stream_lock_;
RateStatistics incoming_bitrate_;
int max_reordering_threshold_; // In number of packets or sequence numbers.
// Stats on received RTP packets.
uint32_t jitter_q4_;
uint32_t cumulative_loss_;
int64_t last_receive_time_ms_;
NtpTime last_receive_time_ntp_;
uint32_t last_received_timestamp_;
uint16_t received_seq_first_;
uint16_t received_seq_max_;
uint16_t received_seq_wraps_;
// Current counter values.
size_t received_packet_overhead_;
StreamDataCounters receive_counters_;
// Counter values when we sent the last report.
uint32_t last_report_inorder_packets_;
uint32_t last_report_old_packets_;
uint16_t last_report_seq_max_;
RtcpStatistics last_reported_statistics_;
// stream_lock_ shouldn't be held when calling callbacks.
RtcpStatisticsCallback* const rtcp_callback_;
StreamDataCountersCallback* const rtp_callback_;
};
class ReceiveStatisticsImpl : public ReceiveStatistics,
public RtcpStatisticsCallback,
public StreamDataCountersCallback {
public:
explicit ReceiveStatisticsImpl(Clock* clock);
~ReceiveStatisticsImpl();
// Implement ReceiveStatisticsProvider.
std::vector<rtcp::ReportBlock> RtcpReportBlocks(size_t max_blocks) override;
// Implement ReceiveStatistics.
void IncomingPacket(const RTPHeader& header,
size_t packet_length,
bool retransmitted) override;
void FecPacketReceived(const RTPHeader& header,
size_t packet_length) override;
StreamStatistician* GetStatistician(uint32_t ssrc) const override;
void SetMaxReorderingThreshold(int max_reordering_threshold) override;
void RegisterRtcpStatisticsCallback(
RtcpStatisticsCallback* callback) override;
void RegisterRtpStatisticsCallback(
StreamDataCountersCallback* callback) override;
private:
void StatisticsUpdated(const RtcpStatistics& statistics,
uint32_t ssrc) override;
void CNameChanged(const char* cname, uint32_t ssrc) override;
void DataCountersUpdated(const StreamDataCounters& counters,
uint32_t ssrc) override;
Clock* const clock_;
rtc::CriticalSection receive_statistics_lock_;
std::map<uint32_t, StreamStatisticianImpl*> statisticians_;
RtcpStatisticsCallback* rtcp_stats_callback_;
StreamDataCountersCallback* rtp_stats_callback_;
};
} // namespace webrtc
#endif // MODULES_RTP_RTCP_SOURCE_RECEIVE_STATISTICS_IMPL_H_
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