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112 lines
3.5 KiB
112 lines
3.5 KiB
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_RTP_RTCP_INCLUDE_RTCP_STATISTICS_H_
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#define MODULES_RTP_RTCP_INCLUDE_RTCP_STATISTICS_H_
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#include <stdint.h>
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#include "absl/strings/string_view.h"
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namespace webrtc {
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// Statistics for an RTCP channel
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struct RtcpStatistics {
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uint8_t fraction_lost = 0;
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int32_t packets_lost = 0; // Defined as a 24 bit signed integer in RTCP
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uint32_t extended_highest_sequence_number = 0;
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uint32_t jitter = 0;
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};
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class RtcpStatisticsCallback {
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public:
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virtual ~RtcpStatisticsCallback() {}
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virtual void StatisticsUpdated(const RtcpStatistics& statistics,
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uint32_t ssrc) = 0;
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};
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// Statistics for RTCP packet types.
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struct RtcpPacketTypeCounter {
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RtcpPacketTypeCounter()
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: first_packet_time_ms(-1),
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nack_packets(0),
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fir_packets(0),
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pli_packets(0),
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nack_requests(0),
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unique_nack_requests(0) {}
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void Add(const RtcpPacketTypeCounter& other) {
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nack_packets += other.nack_packets;
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fir_packets += other.fir_packets;
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pli_packets += other.pli_packets;
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nack_requests += other.nack_requests;
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unique_nack_requests += other.unique_nack_requests;
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if (other.first_packet_time_ms != -1 &&
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(other.first_packet_time_ms < first_packet_time_ms ||
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first_packet_time_ms == -1)) {
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// Use oldest time.
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first_packet_time_ms = other.first_packet_time_ms;
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}
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}
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void Subtract(const RtcpPacketTypeCounter& other) {
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nack_packets -= other.nack_packets;
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fir_packets -= other.fir_packets;
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pli_packets -= other.pli_packets;
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nack_requests -= other.nack_requests;
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unique_nack_requests -= other.unique_nack_requests;
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if (other.first_packet_time_ms != -1 &&
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(other.first_packet_time_ms > first_packet_time_ms ||
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first_packet_time_ms == -1)) {
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// Use youngest time.
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first_packet_time_ms = other.first_packet_time_ms;
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}
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}
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int64_t TimeSinceFirstPacketInMs(int64_t now_ms) const {
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return (first_packet_time_ms == -1) ? -1 : (now_ms - first_packet_time_ms);
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}
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int UniqueNackRequestsInPercent() const {
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if (nack_requests == 0) {
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return 0;
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}
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return static_cast<int>((unique_nack_requests * 100.0f / nack_requests) +
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0.5f);
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}
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int64_t first_packet_time_ms; // Time when first packet is sent/received.
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uint32_t nack_packets; // Number of RTCP NACK packets.
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uint32_t fir_packets; // Number of RTCP FIR packets.
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uint32_t pli_packets; // Number of RTCP PLI packets.
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uint32_t nack_requests; // Number of NACKed RTP packets.
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uint32_t unique_nack_requests; // Number of unique NACKed RTP packets.
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};
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class RtcpPacketTypeCounterObserver {
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public:
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virtual ~RtcpPacketTypeCounterObserver() {}
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virtual void RtcpPacketTypesCounterUpdated(
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uint32_t ssrc,
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const RtcpPacketTypeCounter& packet_counter) = 0;
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};
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// Invoked for each cname passed in RTCP SDES blocks.
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class RtcpCnameCallback {
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public:
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virtual ~RtcpCnameCallback() = default;
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virtual void OnCname(uint32_t ssrc, absl::string_view cname) = 0;
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_INCLUDE_RTCP_STATISTICS_H_
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