refine the srs js player and publisher, add private object

@@ -427,8 +427,10 @@ function srs_publiser_get_codec(
 * @param container the html container id.
 * @param width a float value specifies the width of player.
 * @param height a float value specifies the height of player.
+* @param private_object [optional] an object that used as private object, 
+*       for example, the logic chat object which owner this player.
 */
-function SrsPlayer(container, width, height) {
+function SrsPlayer(container, width, height, private_object) {
     if (!SrsPlayer.__id) {
         SrsPlayer.__id = 100;
     }
@@ -438,6 +440,7 @@ function SrsPlayer(container, width, height) {
     
     SrsPlayer.__players.push(this);
     
+    this.private_object = private_object;
     this.container = container;
     this.width = width;
     this.height = height;
@@ -611,8 +614,10 @@ function __srs_on_player_timer(id, time, buffer_length) {
 * @param container the html container id.
 * @param width a float value specifies the width of publisher.
 * @param height a float value specifies the height of publisher.
+* @param private_object [optional] an object that used as private object, 
+*       for example, the logic chat object which owner this publisher.
 */
-function SrsPublisher(container, width, height) {
+function SrsPublisher(container, width, height, private_object) {
     if (!SrsPublisher.__id) {
         SrsPublisher.__id = 100;
     }
@@ -622,6 +627,7 @@ function SrsPublisher(container, width, height) {
     
     SrsPublisher.__publishers.push(this);
     
+    this.private_object = private_object;
     this.container = container;
     this.width = width;
     this.height = height;

@@ -184,7 +184,9 @@
                 // if previous exists, ignore, only add new here.
                 var previous_chat = get_previous_chat_user(previous_chats, chat.id);
                 if (previous_chat) {
+                    // update reference.
                     chat.player = previous_chat.player;
+                    chat.player.private_object = chat;
                     continue;
                 }
                 
@@ -209,7 +211,7 @@
             
                 if (!no_play) {
                     // start the realtime player.
-                    var _player = new SrsPlayer("rp_raw_" + chat.id, 600, 300);
+                    var _player = new SrsPlayer("rp_raw_" + chat.id, 600, 300, chat);
                     _player.on_player_ready = function() {
                         this.set_bt(0.5);
                         this.set_fs("screen", 100);