Reputation: 2051
I want to write a python program that could extract audio from a video file (e.g. video.avi
).
Is there any good library for it? And where should I start from?
I tried to use PyMedia, but I couldn't install it on my MacOSX(Mountain Lion).
EDIT:
The problem is video.avi
is not completely available. Someone is writing on it and adding some frames to it every second. So I wanted to write a code in python to get the video as it comes and extract the audio from it and write it to a file (e.g. audio.mp3
, audio.wav
).
I don't know if ffmpeg
can wait for the video to be copied to video.avi
.
And I cannot wait for the video to be copied completely and then do the audio extraction. I have to do it as it comes.
Upvotes: 6
Views: 12461
Reputation: 767
I don't have a complete solution, but from the ffmpeg docs, it looks like ffmpeg can read an incomplete file by piping to stdin. Example from the docs:
cat test.wav | ffmpeg -i pipe:0
If you must use python, you can always call ffmpeg using subprocess.
Upvotes: 3