1、复用rtsp url解析代码

2、修复rtsp/rtmp推流异常回调紊乱的问题

src/Rtsp/Rtsp.cpp

@@ -242,5 +242,58 @@ string SdpParser::toString() const {
 	return title + video + audio;
 }
 
+bool RtspUrl::parse(const string &strUrl) {
+	auto schema = FindField(strUrl.data(), nullptr, "://");
+	bool isSSL = strcasecmp(schema.data(), "rtsps") == 0;
+	//查找"://"与"/"之间的字符串，用于提取用户名密码
+	auto middle_url = FindField(strUrl.data(), "://", "/");
+	if (middle_url.empty()) {
+		middle_url = FindField(strUrl.data(), "://", nullptr);
+	}
+	auto pos = middle_url.rfind('@');
+	if (pos == string::npos) {
+		//并没有用户名密码
+		return setup(isSSL, strUrl, "", "");
+	}
+
+	//包含用户名密码
+	auto user_pwd = middle_url.substr(0, pos);
+	auto suffix = strUrl.substr(schema.size() + 3 + pos + 1);
+	auto url = StrPrinter << "rtsp://" << suffix << endl;
+	if (user_pwd.find(":") == string::npos) {
+		return setup(isSSL, url, user_pwd, "");
+	}
+	auto user = FindField(user_pwd.data(), nullptr, ":");
+	auto pwd = FindField(user_pwd.data(), ":", nullptr);
+	return setup(isSSL, url, user, pwd);
+}
+
+bool RtspUrl::setup(bool isSSL, const string &strUrl, const string &strUser, const string &strPwd) {
+	auto ip = FindField(strUrl.data(), "://", "/");
+	if (ip.empty()) {
+		ip = split(FindField(strUrl.data(), "://", NULL), "?")[0];
+	}
+	auto port = atoi(FindField(ip.data(), ":", NULL).data());
+	if (port <= 0 || port > UINT16_MAX) {
+		//rtsp 默认端口554
+		port = isSSL ? 322 : 554;
+	} else {
+		//服务器域名
+		ip = FindField(ip.data(), NULL, ":");
+	}
+
+	if (ip.empty()) {
+		return false;
+	}
+
+	_url = std::move(strUrl);
+	_user = std::move(strUser);
+	_passwd = std::move(strPwd);
+	_host = std::move(ip);
+	_port = port;
+	_is_ssl = isSSL;
+	return true;
+}
+
 }//namespace mediakit