初始化项目：添加README和核心Python脚本

push_screen.py

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+import subprocess
+import psutil
+import os
+import time
+import tkinter as tk
+from tkinter import messagebox
+
+# 配置项（仅需改这里的服务器IP）
+SERVER_IP = "192.168.1.100"  # MediaMTX服务器内网IP
+MEDIAMTX_PATH = r"D:\ScreenCast\mediamtx\mediamtx.exe"
+FFMPEG_PATH = r"D:\ScreenCast\ffmpeg\bin\ffmpeg.exe"
+STREAM_PATH = "screen"  # 投屏流路径（模式1/2）
+
+# 检查MediaMTX是否运行
+def check_mediamtx_running():
+    for proc in psutil.process_iter(['name']):
+        if proc.info['name'] == 'mediamtx.exe':
+            return True
+    return False
+
+# 启动MediaMTX（如果未运行）
+def start_mediamtx():
+    if not check_mediamtx_running():
+        subprocess.Popen([MEDIAMTX_PATH], cwd=r"D:\ScreenCast\mediamtx", creationflags=subprocess.CREATE_NEW_CONSOLE)
+        time.sleep(3)  # 等待启动
+        messagebox.showinfo("提示", "MediaMTX已启动！")
+
+# 屏幕推流（全屏）
+def push_full_screen():
+    start_mediamtx()
+    # 封装FFmpeg命令，低延迟推流
+    cmd = [
+        FFMPEG_PATH,
+        "-f", "gdigrab", "-framerate", "30", "-i", "desktop",
+        "-c:v", "libx264", "-preset", "ultrafast", "-tune", "zerolatency",
+        "-f", "rtsp", f"rtsp://{SERVER_IP}:8554/{STREAM_PATH}"
+    ]
+    subprocess.Popen(cmd, creationflags=subprocess.CREATE_NEW_CONSOLE)
+    messagebox.showinfo("提示", f"全屏投屏已启动！接收端可打开浏览器访问：\n http://{SERVER_IP}:8889/webrtc.html?src=screen ")
+
+# 主界面（点击按钮即可）
+if __name__ == "__main__":
+    root = tk.Tk()
+    root.title("投屏源控制")
+    root.geometry("300x150")
+    
+    btn1 = tk.Button(root, text="一键全屏投屏", command=push_full_screen, width=20, height=2)
+    btn1.pack(pady=20)
+    
+    root.mainloop()