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[feat] add nack module

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This commit is contained in:
dijunkun
2025-02-12 17:35:59 +08:00
parent 36704c7e4c
commit 1db57bfc76
8 changed files with 421 additions and 5 deletions
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65
src/channel/rtp_channel/rtp_video_receiver.h
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@@ -9,6 +9,7 @@
#include "clock.h"
#include "fec_decoder.h"
#include "io_statistics.h"
#include "nack_requester.h"
#include "receive_side_congestion_controller.h"
#include "ringbuffer.h"
#include "rtcp_receiver_report.h"
@@ -21,7 +22,10 @@
using namespace webrtc;
class RtpVideoReceiver : public ThreadBase {
class RtpVideoReceiver : public ThreadBase,
public LossNotificationSender,
public KeyFrameRequestSender,
public NackSender {
public:
RtpVideoReceiver(std::shared_ptr<Clock> clock);
RtpVideoReceiver(std::shared_ptr<Clock> clock,
@@ -104,6 +108,65 @@ class RtpVideoReceiver : public ThreadBase {
RtcpFeedbackSenderInterface* active_remb_module_;
uint32_t feedback_ssrc_ = 0;
std::unique_ptr<NackRequester> nack_;
private:
class RtcpFeedbackBuffer : public KeyFrameRequestSender,
public NackSender,
public LossNotificationSender {
public:
RtcpFeedbackBuffer(KeyFrameRequestSender* key_frame_request_sender,
NackSender* nack_sender,
LossNotificationSender* loss_notification_sender);
~RtcpFeedbackBuffer() override = default;
// KeyFrameRequestSender implementation.
void RequestKeyFrame() override;
// NackSender implementation.
void SendNack(const std::vector<uint16_t>& sequence_numbers,
bool buffering_allowed) override;
// LossNotificationSender implementation.
void SendLossNotification(uint16_t last_decoded_seq_num,
uint16_t last_received_seq_num,
bool decodability_flag,
bool buffering_allowed) override;
// Send all RTCP feedback messages buffered thus far.
void SendBufferedRtcpFeedback();
void ClearLossNotificationState();
private:
// LNTF-related state.
struct LossNotificationState {
LossNotificationState(uint16_t last_decoded_seq_num,
uint16_t last_received_seq_num,
bool decodability_flag)
: last_decoded_seq_num(last_decoded_seq_num),
last_received_seq_num(last_received_seq_num),
decodability_flag(decodability_flag) {}
uint16_t last_decoded_seq_num;
uint16_t last_received_seq_num;
bool decodability_flag;
};
KeyFrameRequestSender* const key_frame_request_sender_;
NackSender* const nack_sender_;
LossNotificationSender* const loss_notification_sender_;
// Key-frame-request-related state.
bool request_key_frame_;
// NACK-related state.
std::vector<uint16_t> nack_sequence_numbers_;
std::optional<LossNotificationState> lntf_state_;
};
RtcpFeedbackBuffer rtcp_feedback_buffer_;
private:
FILE* file_rtp_recv_ = nullptr;
};