A simple Python wrapper for FFmpeg.

• This repo is to provide an easy way for Python users to grab frames from a video stream. You do not need to tackle many complex audio-video problems concerning FFmpeg any more.

We provide 2 methods to install pyFFmpeg.

You can first pull this repo via git, and then build a docker with all libs installed. You do not need to configure compilation params any more.

$ git clone https://github.com/dongrixinyu/pyFFmpeg
$ cd pyFFmpeg
$ docker build -t jionlp/pyffmpeg:1.0 .
$ docker run -it jionlp/pyffmpeg:1.0 /bin/bash  # run into the container.
$ (in docker container) python

and then you can type these scripts in the Python Console:

>>> import pyFFmpeg
>>> stream_obj = pyFFmpeg.StreamParser('rtmp://ip:port/xxxx')
>>> print(stream_obj.width, stream_obj.height, stream_obj.fps)

Or, you can pull image from docker hub.(recommended)

docker pull jionlp/pyffmpeg:1.0

This method is a little bit difficult if you are not familiar with GCC and trivials concerning compilation. But if you can configure ffmpeg, python include path, dynamic library path smoothly, just take a try.

• gcc, make, cmake tools etc.
• ffmpeg>=4.2.0 should been installed correctly.
• Python>=3.7

This repo is now still in experiment and may not be that stable, so I recommend you to install pyFFmpeg in method 1:

• github + pip

$ git clone https://github.com/dongrixinyu/pyFFmpeg
$ cd pyFFmpeg
$ ./compiler.sh  # you should configure all kinds of paths according to your system environment.
$ pip install -e .

• To grab frames from an online stream or a video file suffixed by mp4 or flv, etc.

import pyFFmpeg

# to build and initialize a stream context.
stream_path = 'rtmp://ip:port/xxxx'
stream_path = 'xxxx.mp4'
stream_obj = pyFFmpeg.StreamParser(stream_path)

# stream_state indicates if the stream context has been built and initialized successfully.
print(stream_obj.stream_state)

# to get an RGB frame in various format.
frame = stream_obj.get_one_frame(image_format='numpy')
# image_format includes `numpy`, `Image` in PIL, `base64`, or `None` which means just bytes.
# in this example, you get a frame in numpy format with a shape like (width, height, 3).

• The test.py file provides a complete version of how to decode an online video stream continually.

• FFmpeg Principle