等待vps帧

src/Extension/H265.h

@@ -229,7 +229,7 @@ public:
     }
     }
 
 
     bool ready() override {
     bool ready() override {
-        return !_sps.empty() && !_pps.empty();
+        return !_vps.empty() && !_sps.empty() && !_pps.empty();
     }
     }