Python use ffmpeg not running when using os.system

Question

I have been trying to convert mp3 audio to wav file using subprocess. I have installed ffmpeg and libav using home-brew. However whenever I run my code.

import subprocess

subprocess.call(['ffmpeg', '-i', 'input.mp3',
               'output.wav'])

I get this error

FileNotFoundError: [Errno 2] No such file or directory: 'ffmpeg': 'ffmpeg'

I have tried to use pydub but always get ffprobe errors
I have tried using os.system alternatively

For reference I am using macOS Mojave, python 3.7

Edit:

Instead of using ['ffmpeg', '-i', 'input.mp3', 'output.wav']

Use ['path/to/ffmpeg', '-i', 'input.mp3', 'output.wav']

Ways to find the path to ffmpeg-----------------------

Unix(Linux, Mac): find ffmpeg

Windows: Where ffmpeg

clubby789 · Accepted Answer · 2019-08-04 10:49:21Z

0

Use the whole path to the ffmpeg executable rather than justffmpeg

answered Aug 4, 2019 at 10:49

clubby789

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3 Comments

GILO Over a year ago

Where would the path be located

clubby789 Over a year ago

You should be able to run where ffmpeg in your command line to get the path. For me it's C:\ffmpeg\bin\ffmpeg.exe.

GILO Over a year ago

Thanks I have tried what you have said and it no longer displays an error however the conversion still hasn't occurred.

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