增加windows多设备投屏

demo/windows_sender/NetworkSender.cpp

@@ -20,7 +20,7 @@ NetworkSender::~NetworkSender() {
     WSACleanup();
 }
 
-bool NetworkSender::Initialize(const std::string& ip, int port) {
+bool NetworkSender::Initialize(const std::vector<std::string>& ips, int port) {
     socket_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
     if (socket_ == INVALID_SOCKET) return false;
 
@@ -28,11 +28,16 @@ bool NetworkSender::Initialize(const std::string& ip, int port) {
     int sndBuf = 1024 * 1024; // 1MB
     setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, (char*)&sndBuf, sizeof(sndBuf));
 
-    destAddr_.sin_family = AF_INET;
-    destAddr_.sin_port = htons(port);
-    inet_pton(AF_INET, ip.c_str(), &destAddr_.sin_addr);
+    destAddrs_.clear();
+    for (const auto& ip : ips) {
+        sockaddr_in addr = {};
+        addr.sin_family = AF_INET;
+        addr.sin_port = htons(port);
+        inet_pton(AF_INET, ip.c_str(), &addr.sin_addr);
+        destAddrs_.push_back(addr);
+    }
 
-    return true;
+    return !destAddrs_.empty();
 }
 
 bool NetworkSender::SendFrame(const std::vector<uint8_t>& data, uint64_t timestamp, int width, int height, bool isKeyFrame) {
@@ -75,10 +80,12 @@ bool NetworkSender::SendFrame(const std::vector<uint8_t>& data, uint64_t timesta
         memcpy(packet.data(), &transHeader, HEADER_SIZE);
         memcpy(packet.data() + HEADER_SIZE, buffer.data() + offset, chunkSize);
 
-        int sent = sendto(socket_, (const char*)packet.data(), (int)packet.size(), 0, (sockaddr*)&destAddr_, sizeof(destAddr_));
-        if (sent < 0) {
-            // std::cerr << "Send failed" << std::endl;
-            // Continue sending other fragments anyway
+        for (const auto& addr : destAddrs_) {
+            int sent = sendto(socket_, (const char*)packet.data(), (int)packet.size(), 0, (sockaddr*)&addr, sizeof(addr));
+            if (sent < 0) {
+                // std::cerr << "Send failed" << std::endl;
+                // Continue sending other fragments anyway
+            }
         }
     }
 

demo/windows_sender/NetworkSender.h

@@ -21,10 +21,10 @@ public:
     NetworkSender();
     ~NetworkSender();
 
-    bool Initialize(const std::string& ip, int port);
+    bool Initialize(const std::vector<std::string>& ips, 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_;
+    std::vector<sockaddr_in> destAddrs_;
 };

demo/windows_sender/main.cpp

@@ -2,21 +2,37 @@
 #include "ScreenCapture.h"
 #include "VideoEncoder.h"
 #include <iostream>
+#include <sstream>
+#include <vector>
 #include <thread>
 #include <chrono>
 #include <fstream>
 
 int main(int argc, char* argv[]) {
-    std::string ip = "127.0.0.1";
+    std::string ipStr = "127.0.0.1";
     int port = 8888;
     std::string outputFileName = "";
 
-    if (argc > 1) ip = argv[1];
+    if (argc > 1) ipStr = argv[1];
     if (argc > 2) port = std::stoi(argv[2]);
     if (argc > 3) outputFileName = argv[3];
 
+    // Parse IPs
+    std::vector<std::string> ips;
+    std::stringstream ss(ipStr);
+    std::string item;
+    while (std::getline(ss, item, ',')) {
+        // Trim spaces might be good but let's assume no spaces for simplicity or user should handle
+        if (!item.empty()) {
+            ips.push_back(item);
+        }
+    }
+    if (ips.empty()) ips.push_back("127.0.0.1");
+
     std::cout << "Starting Windows Sender Demo..." << std::endl;
-    std::cout << "Target: " << ip << ":" << port << std::endl;
+    std::cout << "Targets: ";
+    for (const auto& ip : ips) std::cout << ip << " ";
+    std::cout << ", Port: " << port << std::endl;
     if (!outputFileName.empty()) {
         std::cout << "Output File: " << outputFileName << std::endl;
     }
@@ -60,7 +76,7 @@ int main(int argc, char* argv[]) {
     }
 
     NetworkSender sender;
-    if (!sender.Initialize(ip, port)) {
+    if (!sender.Initialize(ips, port)) {
         std::cerr << "Failed to initialize Network Sender" << std::endl;
         return 1;
     }