1

python --version

1

ffmpeg -version

1

brew install ffmpeg

1

ffmpeg -version

1

2

sudo apt update

sudo apt install ffmpeg

1

sudo yum install ffmpeg

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

import os

import subprocess

def extract_audio(video_file, output_dir):

    # 构建输出文件路径

    output_file = os.path.join(

        output_dir,

        os.path.splitext(os.path.basename(video_file))[0] + '.mp3'

    )

    # ffmpeg 命令

    command = [

        'ffmpeg',

        '-i', video_file,

        '-vn',                    # 不处理视频流

        '-acodec', 'libmp3lame',  # MP3 编码器

        '-ab', '192k',            # 音频码率

        output_file

    ]

    try:

        subprocess.run(command, check=True)

        print(f"✅ 音频已提取：{output_file}")

    except subprocess.CalledProcessError:

        print(f"❌ 处理失败：{video_file}")

def process_videos(input_dir, output_dir):

    os.makedirs(output_dir, exist_ok=True)

    for file_name in os.listdir(input_dir):

        if file_name.lower().endswith(('.mp4', '.mov', '.avi', '.mkv')):

            video_path = os.path.join(input_dir, file_name)

            extract_audio(video_path, output_dir)

if __name__ == "__main__":

    input_dir = './v'

    output_dir = './mp3'

    process_videos(input_dir, output_dir)

1

python extract_audio.py