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优化代码

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This commit is contained in:
ziyue 2021-07-27 20:52:51 +08:00
parent c59a7a04c3
commit b1dc285649
2 changed files with 13 additions and 13 deletions
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24
webrtc/Nack.cpp
View File

@ -90,7 +90,7 @@ void NackContext::received(uint16_t seq, bool is_rtx) {
//回环
_seq.clear();
_last_max_seq = min_seq;
_nack_send_ntp.clear();
_nack_send_status.clear();
return;
}
@ -151,12 +151,12 @@ void NackContext::eraseFrontSeq() {
}
void NackContext::onRtx(uint16_t seq) {
auto it = _nack_send_ntp.find(seq);
if (it == _nack_send_ntp.end()) {
auto it = _nack_send_status.find(seq);
if (it == _nack_send_status.end()) {
return;
}
auto rtt = getCurrentMillisecond() - it->second.update_stamp;
_nack_send_ntp.erase(it);
_nack_send_status.erase(it);
if (rtt >= 0) {
//rtt不肯小于0
@ -170,7 +170,7 @@ void NackContext::recordNack(const FCI_NACK &nack) {
auto i = nack.getPid();
for (auto flag : nack.getBitArray()) {
if (flag) {
auto &ref = _nack_send_ntp[i];
auto &ref = _nack_send_status[i];
ref.first_stamp = now;
ref.update_stamp = now;
ref.nack_count = 1;
@ -178,18 +178,18 @@ void NackContext::recordNack(const FCI_NACK &nack) {
++i;
}
//记录太多了，移除一部分早期的记录
while (_nack_send_ntp.size() > kNackMaxSize) {
_nack_send_ntp.erase(_nack_send_ntp.begin());
while (_nack_send_status.size() > kNackMaxSize) {
_nack_send_status.erase(_nack_send_status.begin());
}
}
uint64_t NackContext::reSendNack() {
set<uint16_t> nack_rtp;
auto now = getCurrentMillisecond();
for (auto it = _nack_send_ntp.begin(); it != _nack_send_ntp.end();) {
for (auto it = _nack_send_status.begin(); it != _nack_send_status.end();) {
if (now - it->second.first_stamp > kNackMaxMS) {
//该rtp丢失太久了，不再要求重传
it = _nack_send_ntp.erase(it);
it = _nack_send_status.erase(it);
continue;
}
if (now - it->second.update_stamp < 2 * _rtt) {
@ -203,13 +203,13 @@ uint64_t NackContext::reSendNack() {
it->second.update_stamp = now;
if (++(it->second.nack_count) == kNackMaxCount) {
//nack次数太多，移除之
it = _nack_send_ntp.erase(it);
it = _nack_send_status.erase(it);
continue;
}
++it;
}
if (_nack_send_ntp.empty()) {
if (_nack_send_status.empty()) {
//不需要再发送nack
return 0;
}
@ -219,7 +219,7 @@ uint64_t NackContext::reSendNack() {
for (auto it = nack_rtp.begin(); it != nack_rtp.end();) {
if (pid == -1) {
pid = *it;
vec.resize(16, false);
vec.resize(FCI_NACK::kBitSize, false);
++it;
continue;
}

2
webrtc/Nack.h
View File

@ -69,7 +69,7 @@ private:
uint64_t update_stamp;
int nack_count = 0;
};
map<uint16_t/*seq*/, NackStatus > _nack_send_ntp;
map<uint16_t/*seq*/, NackStatus > _nack_send_status;
};
#endif //ZLMEDIAKIT_NACK_H