用 Python 实现视频音频转换

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作者：zhu6201976

一、moviepy实现视频转音频

github地址：GitHub - Zulko/moviepy: Video editing with Python

二、示例代码

"""
@Time    : 2024-04-15 20:02
@Author  : Tesla
@File    : 视频转音频.py
@Description :

1.方式1 https://github.com/Zulko/moviepy -> 推荐 510M转换耗时 112秒=2分钟 大小98M
MoviePy can read and write all the most common audio and video formats, including GIF, and runs on Windows/Mac/Linux, with Python 3.6+
pip install moviepy

2.方式2 特殊格式如m3u8 ffmpeg

"""
import time

from moviepy.editor import *


def test1():
    """
    先读取mp4 再提取音频
    cost time 112.1316225528717
    """

    # 输入视频文件路径
    video_path = r"D:\softbackup\mo_tt13394304.mp4"

    # 输出音频文件路径
    audio_path = r"D:\softbackup\mo_tt13394304.mp3"

    # 加载视频
    video = VideoFileClip(video_path)

    # 提取音频
    audio = video.audio

    # 保存音频
    audio.write_audiofile(audio_path)

    print(f"转换完成，音频文件保存在 {audio_path}")


def test2():
    """
    直接将mp4文件当成mp3文件读取 省略过程
    cost time 113.1316225528717
    """
    # 输入视频文件路径
    video_path = r"D:\softbackup\mo_tt13394304.mp4"

    # 输出音频文件路径
    audio_path = r"D:\softbackup\mo_tt13394304.mp3"

    # 加载视频
    audio = AudioFileClip(video_path)

    # 保存音频
    audio.write_audiofile(audio_path)

    print(f"转换完成，音频文件保存在 {audio_path}")


if __name__ == '__main__':
    s = time.time()

    # test1()
    test2()

    e = time.time()
    print(f'cost time {e - s}')