In order to encode the video, certainly, a video encoder must be used. IntroductionįFmpeg is one of the most famous multimedia frameworks which is widely used for processing videos.

For similar posts about video processing, please refer to Resizing a video is unbelievably fast by GPU acceleration and GPU-based video rotation FFmpeg. The full code is available in this GitHub repository. To explore more content on our blog, please refer to the original post. S0, s1= int(t0*win.getframerate()), int(t1*win.This tutorial deals with audio extraction from video using GPU accelerated libraries supported by FFMPEG in Ubuntu. I know how to break them on arbitrary pieces: import wave What is simple way to cut long wav file into pieces so that i don't break any words ? i mean pieces of 10-20 sec length with start and end during the pause in sentences/words ? Could you please point me out pros and cons of launching ffmpeg from python as a command line utility ? (I mean using python multiprocessing module or something similar). I looked to gstreamer and found it nice but unable to satisfy my needs - the only way I found to accomplish this from command line looks like gst-launch-0.10 playbin2 uri=file://`pwd`/ex.mp4 audio-sink='identity single-segment=true ! audioconvert ! audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)16000, channels=(int)1 ! wavenc ! filesink location=foo.wav’īut it is not efficient because i need to wait ages while playing video and simultaneously writing to wav file.įfmpeg is much better: avconv -i foo.mp4 -ab 160k -ac 1 -ar 16000 -vn ffaudio.wavīut i am unable to launch it from python (not as a command line subprocess). I don't know if it is right solution and i am looking for good one. I read many articles and everywhere people suggest to use (from Python) ffmpeg as a subprocess (because there are no reliable python bindings to ffmpeg - the only hope was PyFFmpeg but i found it is unmaintaned now).

My question is how could I extract wav audio track from video file, say video.avi? How to extract audio from a video file using python?

Extract sound from video ffmpeg python