视频录制
 

import cv2
import pyaudio
import wave
import threading
import os
import tkinter as tk
from PIL import Image, ImageTk

# 视频录制设置
VIDEO_WIDTH = 640
VIDEO_HEIGHT = 480
FPS = 20.0
VIDEO_FILENAME = '_video.mp4'
AUDIO_FILENAME = '_audio.wav'
OUTPUT_FILENAME = 'output.mp4'

# 全局变量
recording = False
cap = None
out = None
p = None
stream = None
frames = []
audio_thread = None
root = None
label = None
status_label = None
# 将音频录制设置的变量定义为全局变量
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100

def start_recording():
    global recording, cap, out, p, stream, audio_thread, status_label
    recording = True
    status_label.config(text="ing...")

    try:
        # 打开摄像头
        cap = cv2.VideoCapture(0)
        if not cap.isOpened():
            print("Camera Open Fail")
            return

        cap.set(3, VIDEO_WIDTH)
        cap.set(4, VIDEO_HEIGHT)

        # 定义视频编码器并创建 VideoWriter 对象，尝试使用 avc1 编码器
        fourcc = cv2.VideoWriter_fourcc(*'avc1')
        out = cv2.VideoWriter(VIDEO_FILENAME, fourcc, FPS, (VIDEO_WIDTH, VIDEO_HEIGHT))
        if not out.isOpened():
            #print("无法创建视频写入对象")
            cap.release()
            return

        p = pyaudio.PyAudio()

        stream