python 提取视频中的音频工具类详解

pip install ffmpy -i https://pypi.douban.com/simple

#!/user/bin/env python
# coding=utf-8
"""
@project : csdn
@author  : huyi
@file   : extract_audio_from_audio.py
@ide    : PyCharm
@time   : 2021-11-12 17:16:56
"""
from ffmpy import FFmpeg
import os
import uuid
 
 
def extract(video_path: str, tmp_dir: str, ext: str):
    file_name = '.'.join(os.path.basename(video_path).split('.')[0:-1])
    print('文件名:{}，提取音频'.format(file_name))
    if ext == 'mp3':
        return _run_ffmpeg(video_path, os.path.join(tmp_dir, '{}.{}'.format(uuid.uuid4(), ext)), 'mp3')
    if ext == 'wav':
        return _run_ffmpeg(video_path, os.path.join(tmp_dir, '{}.{}'.format(uuid.uuid4(), ext)), 'wav')
 
 
def _run_ffmpeg(video_path: str, audio_path: str, format: str):
    ff = FFmpeg(inputs={video_path: None},
                outputs={audio_path: '-f {} -vn'.format(format)})
    print(ff.cmd)
    ff.run()
    return audio_path
 

if __name__ == '__main__':
    print(extract('C:/Users/huyi/Desktop/test1.mp4', 'C:/Users/huyi/Desktop', 'wav'))