[core] Setting up fmt with custom config structure for logging system

apps/apputil.cpp

@@ -12,14 +12,14 @@
 #include <chrono>
 #include <iostream>
 #include <iomanip>
-#include <sstream>
 #include <utility>
 #include <memory>
 
 #include "srt.h" // Required for SRT_SYNC_CLOCK_* definitions.
 #include "apputil.hpp"
 #include "netinet_any.h"
 #include "srt_compat.h"
+#include "ofmt.h"
 
 using namespace std;
 using namespace srt;
@@ -147,7 +147,7 @@ string Join(const vector<string>& in, string sep)
     if ( in.empty() )
         return "";
 
-    ostringstream os;
+    srt::ofmtstream os;
 
     os << in[0];
     for (auto i = in.begin()+1; i != in.end(); ++i)

apps/logsupport.cpp

@@ -17,6 +17,7 @@
 #include "logsupport.hpp"
 #include "../srtcore/srt.h"
 #include "../srtcore/utilities.h"
+#include "../srtcore/ofmt.h"
 
 using namespace std;
 
@@ -173,7 +174,7 @@ set<srt_logging::LogFA> SrtParseLogFA(string fa, set<string>* punknown)
 
 void ParseLogFASpec(const vector<string>& speclist, string& w_on, string& w_off)
 {
-    std::ostringstream son, soff;
+    srt::ofmtstream son, soff;
 
     for (auto& s: speclist)
     {

apps/transmitmedia.cpp

@@ -30,6 +30,7 @@
 #endif
 
 #include "netinet_any.h"
+#include "ofmt.h"
 #include "apputil.hpp"
 #include "socketoptions.hpp"
 #include "uriparser.hpp"
@@ -519,10 +520,7 @@ SrtCommon::~SrtCommon()
 SrtSource::SrtSource(string host, int port, const map<string,string>& par)
 {
     Init(host, port, par, false);
-
-    ostringstream os;
-    os << host << ":" << port;
-    hostport_copy = os.str();
+    hostport_copy = srt::ocat(host, OFMT_RAWSTR(":"), port);
 }
 
 int SrtSource::Read(size_t chunk, MediaPacket& pkt, ostream &out_stats)

apps/uriparser.cpp

@@ -64,7 +64,7 @@ string UriParser::makeUri()
         prefix = m_proto + "://";
     }
 
-    std::ostringstream out;
+    srt::ofmtstream out;
 
     out << prefix << m_host;
     if ((m_port == "" || m_port == "0") && m_expect == EXPECT_FILE)

apps/verbose.hpp

@@ -80,7 +80,7 @@ inline void Print(Log& ) {}
 template <typename Arg1, typename... Args>
 inline void Print(Log& out, Arg1&& arg1, Args&&... args)
 {
-    out << std::forward(arg1);
+    out << arg1;
     Print(out, args...);
 }