修改后的代码如下：

import os import glob from natsort import natsorted

dir_path = r'E:\home\up' output_dir = r'E:\home\up\1'

当前文件夹下的所有mp4路径

L = [] for root, dirs, files in os.walk(dir_path): files = natsorted(files) for file in files: if os.path.splitext(file)[1] == '.mp4': file_path = os.path.join(root, file) L.append(file_path)

生成ffmpeg命令

commands = [] for l in L: if os.path.basename(l).startswith('h_'): new_file_name = os.path.basename(l)[2:] else: new_file_name = os.path.basename(l)[1:] ts_file = os.path.join(os.path.dirname(l), new_file_name + '.ts') commands.append(f"ffmpeg -i "{l}" -vcodec copy -acodec copy -bsf:v h264_mp4toannexb "{ts_file}"")

concat_command = ( f'ffmpeg -i "concat:{"|".join([os.path.join(os.path.dirname(l), (os.path.basename(l)[2:] if os.path.basename(l).startswith("h_") else os.path.basename(l)[1:])) + ".ts" for l in L])}" ' '-acodec copy -vcodec copy -bsf:a aac_adtstoasc ' f'"{os.path.join(output_dir, (os.path.basename(L[0])[2:] if os.path.basename(L[0]).startswith("h_") else os.path.basename(L[0])) + ".mp4")}"' )

执行ffmpeg命令

for command in commands: os.system(command)

os.system(concat_command)

删除ts文件

for ts_file in glob.glob(os.path.join(dir_path, '*.ts')): os.remove(ts_file)

截取第一个字母之后的字符串

for mp4_file in glob.glob(os.path.join(output_dir, '*.mp4')): file_name = os.path.basename(mp4_file) new_file_name = file_name[file_name.find(file_name.lstrip('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ')[0]):] os.rename(mp4_file, os.path.join(output_dir, new_file_name)