FileNotFoundError:[Errno 2]没有这样的文件或目录:'ffmpeg'

Question

我是python中的新手,我正在使用pydub模块播放mp3音轨.

这是我播放mp3的简单代码:

#Let's play some mp3 files using python!

from pydub import AudioSegment
from pydub.playback import play

song = AudioSegment.from_mp3("/media/rajendra/0C86E11786E10256/05_I_Like_It_Rough.mp3")
play(song)

当我运行这个程序时,它说:

*/usr/bin/python3.4 /home/rajendra/PycharmProjects/pythonProject5/myProgram.py
/usr/local/lib/python3.4/dist-packages/pydub/utils.py:161: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
/usr/local/lib/python3.4/dist-packages/pydub/utils.py:174: RuntimeWarning: Couldn't find ffplay or avplay - defaulting to ffplay, but may not work
  warn("Couldn't find ffplay or avplay - defaulting to ffplay, but may not work", RuntimeWarning)
Traceback (most recent call last):
  File "/home/rajendra/PycharmProjects/pythonProject5/myProgram.py", line 11, in <module>
    song = AudioSegment.from_mp3("/media/rajendra/0C86E11786E10256/05_I_Like_It_Rough.mp3")
  File "/usr/local/lib/python3.4/dist-packages/pydub/audio_segment.py", line 355, in from_mp3
    return cls.from_file(file, 'mp3')
  File "/usr/local/lib/python3.4/dist-packages/pydub/audio_segment.py", line 339, in from_file
    retcode = subprocess.call(convertion_command, stderr=open(os.devnull))
  File "/usr/lib/python3.4/subprocess.py", line 533, in call
    with Popen(*popenargs, **kwargs) as p:
  File "/usr/lib/python3.4/subprocess.py", line 848, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.4/subprocess.py", line 1446, in _execute_child
    raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'ffmpeg'

Process finished with exit code 1*

请帮我!我已经检查了所有路径,但它不起作用.我目前正在使用Ubuntu.

帮助将不胜感激!

Answer 1

像警告说:

Couldn't find ffplay or avplay - defaulting to ffplay, but may not work

你需要有ffplay或avplay; 但是ffplay指的ffmpeg是在最近的版本中哪些不能安装在Ubuntu中.安装libav-tools包apt-get:

sudo apt-get install libav-tools

Answer 2

看起来你需要 ffmpeg，但是

sudo apt-get install ffmpeg 

不再起作用了。您可以通过以下方式获取 ffmpeg：

sudo add-apt-repository ppa:jon-severinsson/ffmpeg
sudo apt-get update
sudo apt-get install ffmpeg

Answer 3

sudo apt-get install ffmpeg

注意：已在Ubuntu 18.04上测试