以下是一个使用Python的tkinter和OpenCV库实现打开指定IP摄像头的应用程序。这个程序允许用户输入IP摄像头的URL，并实时显示摄像头画面，同时支持截图和录制功能。

import tkinter as tk
from tkinter import ttk, messagebox, filedialog
import cv2
from PIL import Image, ImageTk
import threading
import time
import os
from datetime import datetimeclass IPCameraViewer:def __init__(self, root):self.root = rootself.root.title("IP摄像头查看器")self.root.geometry("900x600")self.root.resizable(True, True)# 设置字体确保中文显示正常self.font = ('SimHei', 10)self.title_font = ('SimHei', 14, 'bold')# 摄像头相关变量self.cap = Noneself.ip_url = tk.StringVar(value="rtsp://admin:password@192.168.1.100:554/stream1")self.is_playing = Falseself.is_recording = Falseself.frame = Noneself.recorder = None# 创建UIself.create_widgets()def create_widgets(self):"""创建用户界面"""# 标题区域title_frame = ttk.Frame(self.root, padding="10")title_frame.pack(fill=tk.X)title_label = ttk.Label(title_frame, text="IP摄像头查看器", font=self.title_font)title_label.pack(pady=10)# 连接设置区域connect_frame = ttk.LabelFrame(self.root, text="摄像头设置", padding="10")connect_frame.pack(fill=tk.X, padx=10, pady=5)ttk.Label(connect_frame, text="摄像头URL:", font=self.font).pack(side=tk.LEFT, padx=5)url_entry = ttk.Entry(connect_frame,textvariable=self.ip_url,font=self.font,width=50)url_entry.pack(side=tk.LEFT, padx=5)self.connect_button = ttk.Button(connect_frame,text="连接",command=self.toggle_connection,style="Accent.TButton")self.connect_button.pack(side=tk.LEFT, padx=5)# 状态区域status_frame = ttk.Frame(self.root, padding="5")status_frame.pack(fill=tk.X)self.status_var = tk.StringVar()self.status_var.set("未连接")status_label = ttk.Label(status_frame,textvariable=self.status_var,font=self.font,foreground="red")status_label.pack(side=tk.LEFT, padx=5)# 视频显示区域self.display_frame = ttk.LabelFrame(self.root, text="视频预览", padding="10")self.display_frame.pack(fill=tk.BOTH, expand=True, padx=10, pady=5)# 创建画布用于显示视频self.canvas_width = 800self.canvas_height = 450self.canvas = tk.Canvas(self.display_frame,width=self.canvas_width,height=self.canvas_height,bg="black")self.canvas.pack(fill=tk.BOTH, expand=True)# 控制按钮区域control_frame = ttk.Frame(self.root, padding="10")control_frame.pack(fill=tk.X)self.screenshot_button = ttk.Button(control_frame,text="截图",command=self.take_screenshot,state=tk.DISABLED)self.screenshot_button.pack(side=tk.LEFT, padx=5)self.record_button = ttk.Button(control_frame,text="开始录制",command=self.toggle_recording,state=tk.DISABLED)self.record_button.pack(side=tk.LEFT, padx=5)# 自定义按钮样式style = ttk.Style()style.configure('Accent.TButton', font=self.font)def toggle_connection(self):"""切换摄像头连接状态"""if self.is_playing:self.stop_camera()else:self.start_camera()def start_camera(self):"""启动摄像头"""try:self.status_var.set("正在连接...")self.connect_button.config(text="断开连接")self.screenshot_button.config(state=tk.NORMAL)self.record_button.config(state=tk.NORMAL)# 打开摄像头self.cap = cv2.VideoCapture(self.ip_url.get())if not self.cap.isOpened():raise Exception("无法连接到摄像头，请检查URL和网络连接")# 获取视频帧尺寸self.frame_width = int(self.cap.get(3))self.frame_height = int(self.cap.get(4))# 启动视频播放线程self.is_playing = Trueself.status_var.set("已连接")threading.Thread(target=self.update_frame, daemon=True).start()except Exception as e:messagebox.showerror("错误", f"连接摄像头时出错: {str(e)}")self.status_var.set("连接失败")self.connect_button.config(text="连接")self.screenshot_button.config(state=tk.DISABLED)self.record_button.config(state=tk.DISABLED)def stop_camera(self):"""停止摄像头"""self.is_playing = Falseself.is_recording = Falseif self.cap:self.cap.release()self.cap = Noneif self.recorder:self.recorder.release()self.recorder = Noneself.connect_button.config(text="连接")self.status_var.set("未连接")self.record_button.config(text="开始录制")self.screenshot_button.config(state=tk.DISABLED)self.record_button.config(state=tk.DISABLED)# 清空画布self.canvas.delete("all")self.canvas.create_text(self.canvas_width/2, self.canvas_height/2, text="摄像头已断开", fill="white", font=self.font)def update_frame(self):"""更新视频帧"""while self.is_playing:ret, frame = self.cap.read()if not ret:self.status_var.set("无法获取视频帧")break# 保存当前帧用于截图self.frame = frame# 调整帧大小以适应画布frame = cv2.resize(frame, (self.canvas_width, self.canvas_height))# 转换为RGB并显示rgb_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)pil_image = Image.fromarray(rgb_frame)photo = ImageTk.PhotoImage(image=pil_image)# 在画布上显示图像self.canvas.create_image(0, 0, image=photo, anchor=tk.NW)self.canvas.photo = photo# 录制视频if self.is_recording:self.recorder.write(frame)# 控制帧率time.sleep(0.03)  # 约30FPSdef toggle_recording(self):"""切换录制状态"""if self.is_recording:self.is_recording = Falseself.record_button.config(text="开始录制")self.status_var.set("录制已停止")if self.recorder:self.recorder.release()self.recorder = Noneelse:if not self.frame is None:# 创建保存目录if not os.path.exists("recordings"):os.makedirs("recordings")# 设置输出文件名和编码器timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")output_file = f"recordings/camera_recording_{timestamp}.mp4"# 定义编码器并创建VideoWriter对象fourcc = cv2.VideoWriter_fourcc(*'mp4v')self.recorder = cv2.VideoWriter(output_file, fourcc, 20.0,  # FPS(self.frame_width, self.frame_height))self.is_recording = Trueself.record_button.config(text="停止录制")self.status_var.set("正在录制...")else:messagebox.showinfo("提示", "没有可用的视频帧")def take_screenshot(self):"""拍摄截图"""if not self.frame is None:# 创建保存目录if not os.path.exists("screenshots"):os.makedirs("screenshots")# 设置输出文件名timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")output_file = f"screenshots/camera_screenshot_{timestamp}.png"# 保存截图cv2.imwrite(output_file, self.frame)self.status_var.set(f"截图已保存至: {output_file}")# 显示保存成功提示messagebox.showinfo("成功", f"截图已保存至:\n{output_file}")else:messagebox.showinfo("提示", "没有可用的视频帧")if __name__ == "__main__":root = tk.Tk()app = IPCameraViewer(root)root.mainloop()