Add config item for chosing first h264 profile (#161)

Author: starwarfan

source/agent/webrtc/agent.toml

@@ -57,8 +57,8 @@ keystorePath = "./cert/certificate.pfx"
 #note, this won't work with all versions of libnice. With 0 all the available ports are used
 
 # The webrtc port range
-maxport = 0 #default: 0
 minport = 0 #default: 0
+maxport = 0 #default: 0
 
 #STUN server IP address and port to be used by the server.
 #if "" is used, the address is discovered locally

source/agent/webrtc/wrtcConnection.js

@@ -322,6 +322,13 @@ module.exports = function (spec, on_status, on_mediaUpdate) {
                                     }
                                 }
                             } else {
+                                if (global.config.webrtc.h264_profile_selection === 'highest-priority') {
+                                    if (selectedPayload < 0) {
+                                        tmpProfile = prf;
+                                        selectedPayload = fmtp.payload;
+                                    }
+                                    break;
+                                }
                                 if (h264ProfileOrder.indexOf(tmpProfile) < h264ProfileOrder.indexOf(prf)) {
                                     tmpProfile = prf;
                                     selectedPayload = fmtp.payload;