增加windows端屏幕捕获编码demo

demo/windows_sender/NetworkSender.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <string>
+#include <vector>
+#include <cstdint>
+
+#pragma comment(lib, "ws2_32.lib")
+
+struct PacketHeader {
+    uint64_t timestamp;
+    uint32_t width;
+    uint32_t height;
+    uint32_t frameType; // 0=I, 1=P
+    uint32_t dataSize;
+};
+
+class NetworkSender {
+public:
+    NetworkSender();
+    ~NetworkSender();
+
+    bool Initialize(const std::string& ip, int port);
+    bool SendFrame(const std::vector<uint8_t>& data, uint64_t timestamp, int width, int height, bool isKeyFrame);
+
+private:
+    SOCKET socket_ = INVALID_SOCKET;
+    sockaddr_in destAddr_;
+};