去除ssrc作为流ID传递，ssrc只作为sdp消息使用。动态端口的情况下支持固定流地址，同时支持未点播时直接播放流地址，代码自动发起点播

src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java

@@ -4,7 +4,6 @@ import com.alibaba.fastjson.JSONArray;
 
 public class StreamInfo {
 
-    private String ssrc;
     private String streamId;
     private String deviceID;
     private String cahnnelId;
@@ -20,14 +19,6 @@ public class StreamInfo {
     private String rtsp;
     private JSONArray tracks;
 
-    public String getSsrc() {
-        return ssrc;
-    }
-
-    public void setSsrc(String ssrc) {
-        this.ssrc = ssrc;
-    }
-
     public String getDeviceID() {
         return deviceID;
     }