优化ssrc释放逻辑，优化级联点播速度，去除等待流格式的配置项

648540858

2022-03-07 b2c953fc76de2a9686ee81d5311bd9b06e453912

 src/main/java/com/genersoft/iot/vmp/conf/security/SecurityUtils.java

@@ -48,7 +48,7 @@
        Authentication authentication = getAuthentication();
        if(authentication!=null){
            Object principal = authentication.getPrincipal();
            if(principal!=null){
            if(principal!=null && !"anonymousUser".equals(principal)){
                LoginUser user = (LoginUser) authentication.getPrincipal();
                return user;
            }