添加rtpfb枚举与工具类

src/Rtcp/Rtcp.cpp

@@ -42,6 +42,15 @@ const char *psfbTypeToStr(PSFBType type) {
     }
 }
 
+const char *rtpfbTypeToStr(RTPFBType type) {
+    switch (type){
+#define SWITCH_CASE(key, value) case RTPFBType::key :  return #value "(" #key ")";
+        RTPFB_TYPE_MAP(SWITCH_CASE)
+#undef SWITCH_CASE
+        default: return "unknown transport layer feedback messages fmt type";
+    }
+}
+
 static size_t alignSize(size_t bytes) {
     return (size_t)((bytes + 3) / 4) << 2;
 }

src/Rtcp/Rtcp.h

@@ -133,6 +133,13 @@ enum class PSFBType : uint8_t {
 #undef XX
 };
 
+//rtpfb类型枚举
+enum class RTPFBType : uint8_t {
+#define XX(key, value) key = value,
+    RTPFB_TYPE_MAP(XX)
+#undef XX
+};
+
 /**
  * RtcpType转描述字符串
  */
@@ -148,6 +155,11 @@ const char *sdesTypeToStr(SdesType type);
  */
 const char *psfbTypeToStr(PSFBType type);
 
+/**
+ * rtpfb枚举转描述字符串
+ */
+const char *rtpfbTypeToStr(RTPFBType type);
+
 class RtcpHeader {
 public:
 #if __BYTE_ORDER == __BIG_ENDIAN