copy meta to consumers and forwarders,

this feature is missed when merge the modification about "implement save meta,need more test"

@@ -1603,7 +1603,32 @@ int SrsSource::on_data(SrsCommonMessage* shared_data)
     }
 #endif
 
-           return ret;
+
+    // copy to all consumer
+    if (1) {
+        for (int i = 0; i < (int)consumers.size(); i++) {
+            SrsConsumer* consumer = consumers.at(i);
+            if ((ret = consumer->enqueue(&msg, atc, jitter_algorithm)) != ERROR_SUCCESS) {
+                srs_error("dispatch the video failed. ret=%d", ret);
+                return ret;
+            }
+        }
+        srs_info("dispatch video success.");
+    }
+
+    // copy to all forwarders.
+    if (!forwarders.empty()) {
+        std::vector<SrsForwarder*>::iterator it;
+        for (it = forwarders.begin(); it != forwarders.end(); ++it) {
+            SrsForwarder* forwarder = *it;
+            if ((ret = forwarder->on_meta_data(&msg)) != ERROR_SUCCESS) {
+                srs_error("forwarder process video message failed. ret=%d", ret);
+                return ret;
+            }
+        }
+    }
+
+    return ret;
 }
 
 int SrsSource::on_audio(SrsCommonMessage* shared_audio)