修复编译警告

srt/Ack.cpp

@@ -80,6 +80,6 @@ std::string ACKPacket::dump() {
             << " rtt_variance=" << rtt_variance << " pkt_recv_rate=" << pkt_recv_rate
             << " available_buf_size=" << available_buf_size << " estimated_link_capacity=" << estimated_link_capacity
             << " recv_rate=" << recv_rate;
-    return std::move(printer);
+    return printer;
 }
 } // namespace SRT

srt/HSExt.cpp

@@ -34,7 +34,7 @@ std::string HSExtMessage::dump() {
     _StrPrinter printer;
     printer << "srt version : " << std::hex << srt_version << " srt flag : " << std::hex << srt_flag
             << " recv_tsbpd_delay=" << recv_tsbpd_delay << " send_tsbpd_delay = " << send_tsbpd_delay;
-    return std::move(printer);
+    return printer;
 }
 
 bool HSExtMessage::storeToData() {
@@ -130,7 +130,7 @@ bool HSExtStreamID::storeToData() {
 std::string HSExtStreamID::dump() {
     _StrPrinter printer;
     printer << " streamid : " << streamid;
-    return std::move(printer);
+    return printer;
 }
 
 size_t KeyMaterial::getContentSize() {
@@ -263,7 +263,7 @@ std::string KeyMaterial::dump() {
         << " sLen : " << _slen 
         << " salt : " << std::hex << _salt.data()
         << " kLen : " << _klen;
-    return std::move(printer);
+    return printer;
 }
 
 bool HSExtKeyMaterial::loadFromData(uint8_t *buf, size_t len) {

srt/Packet.cpp

@@ -279,7 +279,7 @@ std::string HandshakePacket::dump(){
     for(size_t i=0;i<ext_list.size();++i){
         printer<<ext_list[i]->dump()<<"\r\n";
     }
-    return std::move(printer);
+    return printer;
 }
 bool HandshakePacket::loadFromData(uint8_t *buf, size_t len) {
     if (HEADER_SIZE + HS_CONTENT_MIN_SIZE > len) {
@@ -627,7 +627,7 @@ std::string NAKPacket::dump() {
     for (auto it : lost_list) {
         printer << "[ " << it.first << " , " << it.second - 1 << " ]";
     }
-    return std::move(printer);
+    return printer;
 }
 
 bool MsgDropReqPacket::loadFromData(uint8_t *buf, size_t len) {

srt/PacketQueue.cpp

@@ -233,7 +233,7 @@ std::string PacketQueue::dump() {
         printer << " last:" << _pkt_map.rbegin()->second->packet_seq_number;
         printer << " latency:" << timeLatency() / 1e3;
     }
-    return std::move(printer);
+    return printer;
 }
 
 //////////////////// PacketRecvQueue //////////////////////////////////
@@ -395,7 +395,7 @@ std::string PacketRecvQueue::dump() {
         printer << " start:" << _start;
         printer << " end:" << _end;
     }
-    return std::move(printer);
+    return printer;
 }
 bool PacketRecvQueue::drop(uint32_t first, uint32_t last, std::list<DataPacket::Ptr> &out) {
     uint32_t diff = 0;

srt/Statistic.cpp

@@ -91,7 +91,7 @@ std::string PacketRecvRateContext::dump(){
     }
     printer <<"\r\n";
 
-    return std::move(printer);
+    return printer;
 }
 EstimatedLinkCapacityContext::EstimatedLinkCapacityContext(TimePoint start) : _start(start) {
     for (size_t i = 0; i < SIZE; i++) {