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/*
* Copyright (c) 2018 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_INCLUDE_RTCP_STATISTICS_H_
#define MODULES_RTP_RTCP_INCLUDE_RTCP_STATISTICS_H_
#include <stdint.h>
#include "absl/strings/string_view.h"
namespace webrtc {
// Statistics for RTCP packet types.
struct RtcpPacketTypeCounter {
RtcpPacketTypeCounter()
: first_packet_time_ms(-1),
nack_packets(0),
fir_packets(0),
pli_packets(0),
nack_requests(0),
unique_nack_requests(0) {}
void Add(const RtcpPacketTypeCounter& other) {
nack_packets += other.nack_packets;
fir_packets += other.fir_packets;
pli_packets += other.pli_packets;
nack_requests += other.nack_requests;
unique_nack_requests += other.unique_nack_requests;
if (other.first_packet_time_ms != -1 &&
(other.first_packet_time_ms < first_packet_time_ms ||
first_packet_time_ms == -1)) {
// Use oldest time.
first_packet_time_ms = other.first_packet_time_ms;
}
}
void Subtract(const RtcpPacketTypeCounter& other) {
nack_packets -= other.nack_packets;
fir_packets -= other.fir_packets;
pli_packets -= other.pli_packets;
nack_requests -= other.nack_requests;
unique_nack_requests -= other.unique_nack_requests;
if (other.first_packet_time_ms != -1 &&
(other.first_packet_time_ms > first_packet_time_ms ||
first_packet_time_ms == -1)) {
// Use youngest time.
first_packet_time_ms = other.first_packet_time_ms;
}
}
int64_t TimeSinceFirstPacketInMs(int64_t now_ms) const {
return (first_packet_time_ms == -1) ? -1 : (now_ms - first_packet_time_ms);
}
int UniqueNackRequestsInPercent() const {
if (nack_requests == 0) {
return 0;
}
return static_cast<int>((unique_nack_requests * 100.0f / nack_requests) +
0.5f);
}
int64_t first_packet_time_ms; // Time when first packet is sent/received.
uint32_t nack_packets; // Number of RTCP NACK packets.
uint32_t fir_packets; // Number of RTCP FIR packets.
uint32_t pli_packets; // Number of RTCP PLI packets.
uint32_t nack_requests; // Number of NACKed RTP packets.
uint32_t unique_nack_requests; // Number of unique NACKed RTP packets.
};
class RtcpPacketTypeCounterObserver {
public:
virtual ~RtcpPacketTypeCounterObserver() {}
virtual void RtcpPacketTypesCounterUpdated(
uint32_t ssrc,
const RtcpPacketTypeCounter& packet_counter) = 0;
};
// Invoked for each cname passed in RTCP SDES blocks.
class RtcpCnameCallback {
public:
virtual ~RtcpCnameCallback() = default;
virtual void OnCname(uint32_t ssrc, absl::string_view cname) = 0;
};
} // namespace webrtc
#endif // MODULES_RTP_RTCP_INCLUDE_RTCP_STATISTICS_H_
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