如何使用python脚本（在ubuntu中）获取任何视频文件（.avi .mp4 .flv .mkv等）的持续时间？

Question

I am interested in finding the duration of a video file (of commonly used formats) using a python script in UBUNTU. I found the code:

def getLength(filename):
result = subprocess.Popen(["ffprobe", filename],
stdout = subprocess.PIPE, stderr = subprocess.STDOUT)
return [x for x in result.stdout.readlines() if "Duration" in x]

but it does not work on my UBUNTU BOX may be because of absence of ffprobe or something and i get the following error:

File "leng.py", line 8, in getLength
stdout = subprocess.PIPE, stderr = subprocess.STDOUT)
File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1249, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory

I only want the duration so is there any easier method or how to make the above code work Is there any simple way?

Answer 1

只需安装ffmpeg与

sudo apt-get install ffmpeg

Answer 2

Ubuntu comes with avconv by default and not ffmpeg (ffmpeg is just a wrapper for avconv).

It seems you don't have either installed.