YangWX/crossdesk
1
0
Fork 0
mirror of https://github.com/kunkundi/crossdesk.git synced 2025-10-27 04:35:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

Implementation for FEC decoder module

Browse Source
This commit is contained in:
dijunkun
2023-11-15 22:01:05 -08:00
parent 31b5d7f2e3
commit b0bee226d1
12 changed files with 940 additions and 484 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/rtp/rtp_codec.cpp
View File

@@ -52,14 +52,14 @@ void RtpCodec::Encode(uint8_t* buffer, size_t size,
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
for (size_t index = 0; index < num_of_total_packets; index++) {
for (unsigned int index = 0; index < num_of_total_packets; index++) {
RtpPacket rtp_packet;
if (index < num_of_source_packets) {
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_source_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_SOURCE);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
@@ -89,12 +89,16 @@ void RtpCodec::Encode(uint8_t* buffer, size_t size,
if (index == num_of_source_packets - 1) {
if (last_packet_size > 0) {
rtp_packet.EncodeH264Fua(fec_packets[index], last_packet_size);
rtp_packet.EncodeH264FecSource(fec_packets[index],
last_packet_size, index,
num_of_source_packets);
} else {
rtp_packet.EncodeH264Fua(fec_packets[index], MAX_NALU_LEN);
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else {
rtp_packet.EncodeH264Fua(fec_packets[index], MAX_NALU_LEN);
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else if (index >= num_of_source_packets &&
@@ -103,7 +107,7 @@ void RtpCodec::Encode(uint8_t* buffer, size_t size,
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_total_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_REPAIR);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
@@ -116,7 +120,8 @@ void RtpCodec::Encode(uint8_t* buffer, size_t size,
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
rtp_packet.EncodeH264Fec(fec_packets[index], MAX_NALU_LEN);
rtp_packet.EncodeH264FecRepair(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
packets.emplace_back(rtp_packet);
@@ -238,6 +243,7 @@ size_t RtpCodec::Decode(RtpPacket& packet, uint8_t* payload) {
// if ((packet.Buffer()[13] >> 7) & 0x01) {
// LOG_ERROR("Start bit!!!!!!!!!!!!!!!");
// }
auto nal_unit_type = packet.Buffer()[12] & 0x1F;
if (NALU == nal_unit_type) {

147
src/rtp/rtp_packet.cpp
View File

@@ -12,8 +12,11 @@ void RtpPacket::TryToDecodeRtpPacket() {
} else if (NAL_UNIT_TYPE::FU_A == nal_unit_type_) {
DecodeH264Fua();
}
} else if (PAYLOAD_TYPE::H264_FEC == PAYLOAD_TYPE(buffer_[1] & 0x7F)) {
DecodeH264Fec();
} else if (PAYLOAD_TYPE::H264_FEC_SOURCE == PAYLOAD_TYPE(buffer_[1] & 0x7F)) {
nal_unit_type_ = NAL_UNIT_TYPE::FU_A;
DecodeH264FecSource();
} else if (PAYLOAD_TYPE::H264_FEC_REPAIR == PAYLOAD_TYPE(buffer_[1] & 0x7F)) {
DecodeH264FecRepair();
} else if (PAYLOAD_TYPE::DATA == PAYLOAD_TYPE(buffer_[1] & 0x7F)) {
DecodeData();
} else {
@@ -245,7 +248,9 @@ const uint8_t *RtpPacket::EncodeH264Fua(uint8_t *payload, size_t payload_size) {
return buffer_;
}
const uint8_t *RtpPacket::EncodeH264Fec(uint8_t *payload, size_t payload_size) {
const uint8_t *RtpPacket::EncodeH264FecSource(
uint8_t *payload, size_t payload_size, unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num) {
buffer_[0] = (version_ << 6) | (has_padding_ << 5) | (has_extension_ << 4) |
total_csrc_number_;
buffer_[1] = (marker_ << 7) | payload_type_;
@@ -279,10 +284,75 @@ const uint8_t *RtpPacket::EncodeH264Fec(uint8_t *payload, size_t payload_size) {
}
uint32_t fec_symbol_id_offset =
extension_offset + (has_extension_ && extension_data_ ? 4 : 0);
buffer_[12 + fec_symbol_id_offset] = fec_symbol_id_;
(has_extension_ && extension_data_ ? extension_len_ : 0) +
extension_offset;
uint32_t payload_offset = fec_symbol_id_offset + 1;
buffer_[12 + fec_symbol_id_offset] = fec_symbol_id;
uint32_t fec_source_symbol_num_offset = fec_symbol_id_offset + 1;
buffer_[12 + fec_source_symbol_num_offset] = fec_source_symbol_num;
uint32_t payload_offset = fec_source_symbol_num_offset + 1;
buffer_[12 + payload_offset] = fu_indicator_.forbidden_bit << 7 |
fu_indicator_.nal_reference_idc << 6 |
fu_indicator_.nal_unit_type;
buffer_[13 + payload_offset] = fu_header_.start << 7 | fu_header_.end << 6 |
fu_header_.remain_bit << 1 |
fu_header_.nal_unit_type;
memcpy(buffer_ + 14 + payload_offset, payload, payload_size);
size_ = payload_size + (14 + payload_offset);
return buffer_;
}
const uint8_t *RtpPacket::EncodeH264FecRepair(
uint8_t *payload, size_t payload_size, unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num) {
buffer_[0] = (version_ << 6) | (has_padding_ << 5) | (has_extension_ << 4) |
total_csrc_number_;
buffer_[1] = (marker_ << 7) | payload_type_;
buffer_[2] = (sequence_number_ >> 8) & 0xFF;
buffer_[3] = sequence_number_ & 0xFF;
buffer_[4] = (timestamp_ >> 24) & 0xFF;
buffer_[5] = (timestamp_ >> 16) & 0xFF;
buffer_[6] = (timestamp_ >> 8) & 0xFF;
buffer_[7] = timestamp_ & 0xFF;
buffer_[8] = (ssrc_ >> 24) & 0xFF;
buffer_[9] = (ssrc_ >> 16) & 0xFF;
buffer_[10] = (ssrc_ >> 8) & 0xFF;
buffer_[11] = ssrc_ & 0xFF;
for (uint32_t index = 0; index < total_csrc_number_ && !csrcs_.empty();
index++) {
buffer_[12 + index] = (csrcs_[index] >> 24) & 0xFF;
buffer_[13 + index] = (csrcs_[index] >> 16) & 0xFF;
buffer_[14 + index] = (csrcs_[index] >> 8) & 0xFF;
buffer_[15 + index] = csrcs_[index] & 0xFF;
}
uint32_t extension_offset =
total_csrc_number_ && !csrcs_.empty() ? total_csrc_number_ * 4 : 0;
if (has_extension_ && extension_data_) {
buffer_[12 + extension_offset] = extension_profile_ >> 8;
buffer_[13 + extension_offset] = extension_profile_ & 0xff;
buffer_[14 + extension_offset] = (extension_len_ >> 8) & 0xFF;
buffer_[15 + extension_offset] = extension_len_ & 0xFF;
memcpy(buffer_ + 16 + extension_offset, extension_data_, extension_len_);
}
uint32_t fec_symbol_id_offset =
(has_extension_ && extension_data_ ? extension_len_ : 0) +
extension_offset;
buffer_[12 + fec_symbol_id_offset] = fec_symbol_id;
uint32_t fec_source_symbol_num_offset = fec_symbol_id_offset + 1;
buffer_[12 + fec_source_symbol_num_offset] = fec_source_symbol_num;
uint32_t payload_offset = fec_source_symbol_num_offset + 1;
buffer_[12 + payload_offset] = fu_indicator_.forbidden_bit << 7 |
fu_indicator_.nal_reference_idc << 6 |
@@ -438,7 +508,7 @@ size_t RtpPacket::DecodeH264Fua(uint8_t *payload) {
return payload_size_;
}
size_t RtpPacket::DecodeH264Fec(uint8_t *payload) {
size_t RtpPacket::DecodeH264FecSource(uint8_t *payload) {
version_ = (buffer_[0] >> 6) & 0x03;
has_padding_ = (buffer_[0] >> 5) & 0x01;
has_extension_ = (buffer_[0] >> 4) & 0x01;
@@ -467,10 +537,69 @@ size_t RtpPacket::DecodeH264Fec(uint8_t *payload) {
extension_data_ = buffer_ + 16 + extension_offset;
}
uint32_t fec_symbol_id_offset = extension_offset + (has_extension_ ? 4 : 0);
uint32_t fec_symbol_id_offset =
extension_offset + (has_extension_ ? extension_len_ : 0);
fec_symbol_id_ = buffer_[12 + fec_symbol_id_offset];
uint32_t payload_offset = fec_symbol_id_offset + 1;
uint32_t fec_source_symbol_num_offset = fec_symbol_id_offset + 1;
fec_source_symbol_num_ = buffer_[12 + fec_source_symbol_num_offset];
uint32_t payload_offset = fec_source_symbol_num_offset + 1;
fu_indicator_.forbidden_bit = (buffer_[12 + payload_offset] >> 7) & 0x01;
fu_indicator_.nal_reference_idc = (buffer_[12 + payload_offset] >> 5) & 0x03;
fu_indicator_.nal_unit_type = buffer_[12 + payload_offset] & 0x1F;
fu_header_.start = (buffer_[13 + payload_offset] >> 7) & 0x01;
fu_header_.end = (buffer_[13 + payload_offset] >> 6) & 0x01;
fu_header_.remain_bit = (buffer_[13 + payload_offset] >> 5) & 0x01;
fu_header_.nal_unit_type = buffer_[13 + payload_offset] & 0x1F;
payload_size_ = size_ - (14 + payload_offset);
payload_ = buffer_ + 14 + payload_offset;
if (payload) {
memcpy(payload, payload_, payload_size_);
}
return payload_size_;
}
size_t RtpPacket::DecodeH264FecRepair(uint8_t *payload) {
version_ = (buffer_[0] >> 6) & 0x03;
has_padding_ = (buffer_[0] >> 5) & 0x01;
has_extension_ = (buffer_[0] >> 4) & 0x01;
total_csrc_number_ = buffer_[0] & 0x0f;
marker_ = (buffer_[1] >> 7) & 0x01;
payload_type_ = buffer_[1] & 0x7f;
sequence_number_ = (buffer_[2] << 8) | buffer_[3];
timestamp_ =
(buffer_[4] << 24) | (buffer_[5] << 16) | (buffer_[6] << 8) | buffer_[7];
ssrc_ = (buffer_[8] << 24) | (buffer_[9] << 16) | (buffer_[10] << 8) |
buffer_[11];
for (uint32_t index = 0; index < total_csrc_number_; index++) {
uint32_t csrc = (buffer_[12 + index] << 24) | (buffer_[13 + index] << 16) |
(buffer_[14 + index] << 8) | buffer_[15 + index];
csrcs_.push_back(csrc);
}
uint32_t extension_offset = total_csrc_number_ * 4;
if (has_extension_) {
extension_profile_ =
(buffer_[12 + extension_offset] << 8) | buffer_[13 + extension_offset];
extension_len_ =
(buffer_[14 + extension_offset] << 8) | buffer_[15 + extension_offset];
extension_data_ = buffer_ + 16 + extension_offset;
}
uint32_t fec_symbol_id_offset =
extension_offset + (has_extension_ ? extension_len_ : 0);
fec_symbol_id_ = buffer_[12 + fec_symbol_id_offset];
uint32_t fec_source_symbol_num_offset = fec_symbol_id_offset + 1;
fec_source_symbol_num_ = buffer_[12 + fec_source_symbol_num_offset];
uint32_t payload_offset = fec_source_symbol_num_offset + 1;
payload_size_ = size_ - (14 + payload_offset);
payload_ = buffer_ + 14 + payload_offset;

46
src/rtp/rtp_packet.h
View File

@@ -63,7 +63,7 @@
// |F|NRI| Type |S|E|R| Type |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// H264 FEC
// H264 FEC source symbol
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@@ -81,7 +81,33 @@
// | Extensions |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | FEC symbol id | |
// | FEC symbol id | src sym num | FU indicator | FU header |
// | |
// | FU Payload |
// | |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | padding | Padding size |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// H264 FEC repair symbol
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// |V=2|P|X| CC |M| PT | sequence number |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | timestamp |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | synchronization source (SSRC) identifier |
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | Contributing source (CSRC) identifiers |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | defined by profile | length |x
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | Extensions |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | FEC symbol id | src sym num | |
// | |
// | Fec Payload |
// | |
@@ -96,7 +122,8 @@ class RtpPacket {
public:
typedef enum {
H264 = 96,
H264_FEC = 97,
H264_FEC_SOURCE = 97,
H264_FEC_REPAIR = 98,
OPUS = 111,
DATA = 127
} PAYLOAD_TYPE;
@@ -171,11 +198,17 @@ class RtpPacket {
const uint8_t *Encode(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Nalu(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Fua(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Fec(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264FecSource(uint8_t *payload, size_t payload_size,
unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num);
const uint8_t *EncodeH264FecRepair(uint8_t *payload, size_t payload_size,
unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num);
size_t DecodeData(uint8_t *payload = nullptr);
size_t DecodeH264Nalu(uint8_t *payload = nullptr);
size_t DecodeH264Fua(uint8_t *payload = nullptr);
size_t DecodeH264Fec(uint8_t *payload = nullptr);
size_t DecodeH264FecSource(uint8_t *payload = nullptr);
size_t DecodeH264FecRepair(uint8_t *payload = nullptr);
public:
// Get Header
@@ -226,6 +259,8 @@ class RtpPacket {
const uint8_t FecSymbolId() { return fec_symbol_id_; }
const uint8_t FecSourceSymbolNum() { return fec_source_symbol_num_; }
// Payload
const uint8_t *Payload() {
ParseRtpData();
@@ -277,6 +312,7 @@ class RtpPacket {
FU_INDICATOR fu_indicator_;
FU_HEADER fu_header_;
uint8_t fec_symbol_id_ = 0;
uint8_t fec_source_symbol_num_ = 0;
// Payload
uint8_t *payload_ = nullptr;

117
src/rtp/rtp_video_receiver.cpp
View File

@@ -48,15 +48,118 @@ void RtpVideoReceiver::InsertRtpPacket(RtpPacket& rtp_packet) {
rtcp_rr.Encode();
SendRtcpRR(rtcp_rr);
// SendRtcpRR(rtcp_rr);
}
if (RtpPacket::NAL_UNIT_TYPE::NALU == rtp_packet.NalUnitType()) {
compelete_video_frame_queue_.push(
VideoFrame(rtp_packet.Payload(), rtp_packet.Size()));
} else if (RtpPacket::NAL_UNIT_TYPE::FU_A == rtp_packet.NalUnitType()) {
incomplete_frame_list_[rtp_packet.SequenceNumber()] = rtp_packet;
bool complete = CheckIsFrameCompleted(rtp_packet);
if (!fec_enable_) {
if (RtpPacket::PAYLOAD_TYPE::H264 == rtp_packet.PayloadType()) {
if (RtpPacket::NAL_UNIT_TYPE::NALU == rtp_packet.NalUnitType()) {
compelete_video_frame_queue_.push(
VideoFrame(rtp_packet.Payload(), rtp_packet.Size()));
} else if (RtpPacket::NAL_UNIT_TYPE::FU_A == rtp_packet.NalUnitType()) {
incomplete_frame_list_[rtp_packet.SequenceNumber()] = rtp_packet;
bool complete = CheckIsFrameCompleted(rtp_packet);
}
}
} else {
if (RtpPacket::PAYLOAD_TYPE::H264 == rtp_packet.PayloadType()) {
if (RtpPacket::NAL_UNIT_TYPE::NALU == rtp_packet.NalUnitType()) {
compelete_video_frame_queue_.push(
VideoFrame(rtp_packet.Payload(), rtp_packet.Size()));
} else if (RtpPacket::NAL_UNIT_TYPE::FU_A == rtp_packet.NalUnitType()) {
incomplete_frame_list_[rtp_packet.SequenceNumber()] = rtp_packet;
bool complete = CheckIsFrameCompleted(rtp_packet);
}
} else if (RtpPacket::PAYLOAD_TYPE::H264_FEC_SOURCE ==
rtp_packet.PayloadType()) {
if (last_packet_ts_ != rtp_packet.Timestamp()) {
fec_decoder_.Init();
fec_decoder_.ResetParams(rtp_packet.FecSourceSymbolNum());
last_packet_ts_ = rtp_packet.Timestamp();
}
incomplete_fec_packet_list_[rtp_packet.Timestamp()]
[rtp_packet.SequenceNumber()] = rtp_packet;
uint8_t** complete_frame = fec_decoder_.DecodeWithNewSymbol(
(const char*)incomplete_fec_packet_list_[rtp_packet.Timestamp()]
[rtp_packet.SequenceNumber()]
.Payload(),
rtp_packet.FecSymbolId());
if (nullptr != complete_frame) {
if (!nv12_data_) {
nv12_data_ = new uint8_t[NV12_BUFFER_SIZE];
}
size_t complete_frame_size = 0;
for (int index = 0; index < rtp_packet.FecSourceSymbolNum(); index++) {
if (nullptr == complete_frame[index]) {
LOG_ERROR("Invalid complete_frame[{}]", index);
}
memcpy(nv12_data_ + complete_frame_size, complete_frame[index], 1400);
complete_frame_size += 1400;
}
fec_decoder_.ReleaseSourcePackets(complete_frame);
fec_decoder_.Release();
LOG_ERROR("Release incomplete_fec_packet_list_");
incomplete_fec_packet_list_.erase(rtp_packet.Timestamp());
if (incomplete_fec_frame_list_.end() !=
incomplete_fec_frame_list_.find(rtp_packet.Timestamp())) {
incomplete_fec_frame_list_.erase(rtp_packet.Timestamp());
}
compelete_video_frame_queue_.push(
VideoFrame(nv12_data_, complete_frame_size));
} else {
incomplete_fec_frame_list_.insert(rtp_packet.Timestamp());
}
} else if (RtpPacket::PAYLOAD_TYPE::H264_FEC_REPAIR ==
rtp_packet.PayloadType()) {
if (incomplete_fec_frame_list_.end() ==
incomplete_fec_frame_list_.find(rtp_packet.Timestamp())) {
return;
}
if (last_packet_ts_ != rtp_packet.Timestamp()) {
fec_decoder_.Init();
fec_decoder_.ResetParams(rtp_packet.FecSourceSymbolNum());
last_packet_ts_ = rtp_packet.Timestamp();
}
incomplete_fec_packet_list_[rtp_packet.Timestamp()]
[rtp_packet.SequenceNumber()] = rtp_packet;
uint8_t** complete_frame = fec_decoder_.DecodeWithNewSymbol(
(const char*)incomplete_fec_packet_list_[rtp_packet.Timestamp()]
[rtp_packet.SequenceNumber()]
.Payload(),
rtp_packet.FecSymbolId());
if (nullptr != complete_frame) {
if (!nv12_data_) {
nv12_data_ = new uint8_t[NV12_BUFFER_SIZE];
}
size_t complete_frame_size = 0;
for (int index = 0; index < rtp_packet.FecSourceSymbolNum(); index++) {
if (nullptr == complete_frame[index]) {
LOG_ERROR("Invalid complete_frame[{}]", index);
}
memcpy(nv12_data_ + complete_frame_size, complete_frame[index], 1400);
complete_frame_size += 1400;
}
fec_decoder_.ReleaseSourcePackets(complete_frame);
fec_decoder_.Release();
incomplete_fec_packet_list_.erase(rtp_packet.Timestamp());
compelete_video_frame_queue_.push(
VideoFrame(nv12_data_, complete_frame_size));
}
}
}
}

12
src/rtp/rtp_video_receiver.h
View File

@@ -4,7 +4,9 @@
#include <functional>
#include <map>
#include <queue>
#include <set>
#include "fec_decoder.h"
#include "frame.h"
#include "ringbuffer.h"
#include "rtcp_receiver_report.h"
@@ -46,6 +48,16 @@ class RtpVideoReceiver : public ThreadBase {
std::unique_ptr<RtpStatistics> rtp_statistics_ = nullptr;
uint32_t last_send_rtcp_rr_packet_ts_ = 0;
std::function<int(const char*, size_t)> data_send_func_ = nullptr;
private:
bool fec_enable_ = true;
FecDecoder fec_decoder_;
uint32_t last_packet_ts_ = 0;
// std::map<uint16_t, RtpPacket> incomplete_fec_frame_list_;
// std::map<uint32_t, std::map<uint16_t, RtpPacket>> fec_source_symbol_list_;
// std::map<uint32_t, std::map<uint16_t, RtpPacket>> fec_repair_symbol_list_;
std::set<uint32_t> incomplete_fec_frame_list_;
std::map<uint32_t, std::map<uint16_t, RtpPacket>> incomplete_fec_packet_list_;
};
#endif