Merge branch 'master' of https://gitee.com/xia-chu/ZLMediaKit into dev

src/Rtsp/RtpReceiver.cpp

@@ -42,7 +42,7 @@ bool RtpReceiver::handleOneRtp(int index, TrackType type, int sample_rate, uint8
     }
     RtpHeader *header = (RtpHeader *) ptr;
     if (header->version != RtpPacket::kRtpVersion) {
-        throw std::invalid_argument("非法的rtp，version字段非法");
+        throw BadRtpException("非法的rtp，version字段非法");
     }
     if (!header->getPayloadSize(len)) {
         //无有效负载的rtp包

src/Rtsp/RtpReceiver.h

@@ -165,6 +165,13 @@ public:
     RtpReceiver();
     virtual ~RtpReceiver();
 
+    class BadRtpException : public invalid_argument {
+    public:
+        template<typename Type>
+        BadRtpException(Type &&type) : invalid_argument(std::forward<Type>(type)) {}
+        ~BadRtpException() = default;
+    };
+
 protected:
     /**
      * 输入数据指针生成并排序rtp包