Added RTMP unescaping code to fix Xsplit support for wildcard streams.

src/output/output_rtmp.cpp

@@ -37,6 +37,39 @@ namespace Mist {
 
   OutRTMP::~OutRTMP() {}
 
+
+  /// Helper function for urlunescape.
+  /// Takes a single char input and outputs its integer hex value.
+  int unhex(char c) {
+    return (c >= '0' && c <= '9' ? c - '0' : c >= 'A' && c <= 'F' ? c - 'A' + 10 : c - 'a' + 10);
+  }
+
+  /// Unescapes URLencoded std::string data.
+  std::string urlunescape(const std::string & in) {
+    std::string out;
+    for (unsigned int i = 0; i < in.length(); ++i) {
+      if (in[i] == '%') {
+        char tmp = 0;
+        ++i;
+        if (i < in.length()) {
+          tmp = unhex(in[i]) << 4;
+        }
+        ++i;
+        if (i < in.length()) {
+          tmp += unhex(in[i]);
+        }
+        out += tmp;
+      } else {
+        if (in[i] == '+') {
+          out += ' ';
+        } else {
+          out += in[i];
+        }
+      }
+    }
+    return out;
+  }
+
   void OutRTMP::parseVars(std::string data){
     std::string varname;
     std::string varval;
@@ -613,7 +646,7 @@ namespace Mist {
       int playTransaction = amfData.getContentP(1)->NumValue();
       int playMessageType = messageType;
       int playStreamId = streamId;
-      streamName = amfData.getContentP(3)->StrValue();
+      streamName = urlunescape(amfData.getContentP(3)->StrValue());
       reqUrl += "/"+streamName;//LTS
 
       //handle variables