Add srt_getversion API function

apps/srt-file-transmit.cpp

@@ -143,7 +143,12 @@ int parse_args(FileTransmitConfig &cfg, int argc, char** argv)
     if (print_help)
     {
         cout << "SRT sample application to transmit files.\n";
-        cerr << "SRT Library version: " << SRT_VERSION << endl;
+        cerr << "Built with SRT Library version: " << SRT_VERSION << endl;
+        const uint32_t srtver = srt_getversion();
+        const int major = srtver / 0x10000;
+        const int minor = (srtver / 0x100) % 0x100;
+        const int patch = srtver % 0x100;
+        cerr << "SRT Library version: " << major << "." << minor << "." << patch << endl;
         cerr << "Usage: srt-file-transmit [options] <input-uri> <output-uri>\n";
         cerr << "\n";
 

apps/srt-live-transmit.cpp

@@ -224,7 +224,12 @@ int parse_args(LiveTransmitConfig &cfg, int argc, char** argv)
     if (print_help)
     {
         cout << "SRT sample application to transmit live streaming.\n";
-        cerr << "SRT Library version: " << SRT_VERSION << endl;
+        cerr << "Built with SRT Library version: " << SRT_VERSION << endl;
+        const uint32_t srtver = srt_getversion();
+        const int major = srtver / 0x10000;
+        const int minor = (srtver / 0x100) % 0x100;
+        const int patch = srtver % 0x100;
+        cerr << "SRT Library version: " << major << "." << minor << "." << patch << endl;
         cerr << "Usage: srt-live-transmit [options] <input-uri> <output-uri>\n";
         cerr << "\n";
 #ifndef _WIN32

docs/API-functions.md

@@ -24,6 +24,7 @@ SRT API Functions
   * [srt_getsockname](#srt_getsockname)
   * [srt_getsockopt, srt_getsockflag](#srt_getsockopt-srt_getsockflag)
   * [srt_setsockopt, srt_setsockflag](#srt_setsockopt-srt_setsockflag)
+  * [srt_getversion](#srt_getversion)
 - [**Helper data types for transmission**](#Helper-data-types-for-transmission)
   * [SRT_MSGCTRL](#SRT_MSGCTRL)
 - [**Transmission**](#Transmission)
@@ -549,6 +550,20 @@ type with the option value to be set.
   * Various other errors that may result from problems when setting a specific 
   option (see option description for details).
 
+### srt_getversion
+
+```
+uint32_t srt_getversion();
+```
+
+Get SRT version value. The version format in hex is 0xXXYYZZ for x.y.z in human readable form, 
+where x = ("%d", (version>>16) & 0xff), etc.
+
+- Returns:
+
+  * srt version as an unsigned 32-bit integer
+
+
 Helper data types for transmission
 ----------------------------------
 

srtcore/common.h

@@ -833,7 +833,7 @@ inline int32_t SrtParseVersion(const char* v)
         return 0;
     }
 
-    return major*0x10000 + minor*0x100 + patch;
+    return SrtVersion(major, minor, patch);
 }
 
 inline std::string SrtVersionString(int version)