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[feat] implementation for qos module

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This commit is contained in:
dijunkun
2025-01-08 17:30:13 +08:00
parent 7a84b25b5c
commit de212a8e75
32 changed files with 482 additions and 249 deletions
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40
src/qos/congestion_control_feedback_generator.h
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@@ -10,43 +10,22 @@
#include <optional>
#include <vector>
#include "congestion_control_feedback_tracker.h"
#include "rtcp_packet.h"
#include "rtp_packet_received.h"
class RtpTransportFeedbackGenerator {
class CongestionControlFeedbackGenerator {
public:
// Function intented to be used for sending RTCP messages generated by an
// implementation of this class.
using RtcpSender =
std::function<void(std::vector<std::unique_ptr<RtcpPacket>> packets)>;
virtual ~RtpTransportFeedbackGenerator() = default;
virtual void OnReceivedPacket(const RtpPacketReceived& packet) = 0;
// Sends periodic feedback if it is time to send it.
// Returns time until next call to Process should be made.
virtual int64_t Process(int64_t now) = 0;
virtual void OnSendBandwidthEstimateChanged(int64_t estimate) = 0;
// Overhead from transport layers below RTP. Ie, IP, SRTP.
virtual void SetTransportOverhead(DataSize overhead_per_packet) = 0;
};
class CongestionControlFeedbackGenerator
: public RtpTransportFeedbackGenerator {
public:
CongestionControlFeedbackGenerator(
RtpTransportFeedbackGenerator::RtcpSender feedback_sender);
CongestionControlFeedbackGenerator(RtcpSender feedback_sender);
~CongestionControlFeedbackGenerator() = default;
void OnReceivedPacket(const RtpPacketReceived& packet) override;
void OnReceivedPacket(RtpPacketReceived& packet);
void OnSendBandwidthEstimateChanged(int64_t estimate) override;
void OnSendBandwidthEstimateChanged(int64_t estimate);
int64_t Process(int64_t now_ms) override;
int64_t Process(int64_t now_ms);
void SetTransportOverhead(DataSize overhead_per_packet) override;
void SetTransportOverhead(int64_t overhead_per_packet);
private:
int64_t NextFeedbackTime() const;
@@ -55,6 +34,8 @@ class CongestionControlFeedbackGenerator
void CalculateNextPossibleSendTime(int64_t feedback_size, int64_t now_ms);
const RtcpSender rtcp_sender_;
private:
// Feedback should not use more than 5% of the configured send bandwidth
// estimate. Min and max duration between feedback is configurable using field
@@ -73,6 +54,9 @@ class CongestionControlFeedbackGenerator
int64_t packet_overhead_ = 0;
int64_t send_rate_debt_ = 0;
std::map</*ssrc=*/uint32_t, CongestionControlFeedbackTracker>
feedback_trackers_;
std::optional<int64_t> first_arrival_time_since_feedback_;
int64_t next_possible_feedback_send_time_ = 0;
int64_t last_feedback_sent_time_ = 0;