How to setup ffmpeg in docker container-CodePudding

I compress the video using ffmpeg in python. Normally it run without problem in my local machine but when i dockerize my app it seems docker container cant recognize ffmpeg or i missed something.

with open(uid) as f:
  output = uid[0:-4]   "-f"  ".mp4"
  try:
    subprocess.run('ffmpeg -i '   name   ' -vcodec libx264 '   output)
  except:
     subprocess.run('docker run ffmpeg -i '   name   ' -vcodec libx264 '   output)

It throws exception


Exception has occurred: FileNotFoundError
\[Errno 2\] No such file or directory: 'docker run ffmpeg -i cam4_2022-11-15082920.avi -vcodec libx264 cam4_2022-11-15082920-f.mp4'
File "\\main.py", line 61, in finishing
subprocess.run('ffmpeg -i '   name   ' -vcodec libx264 '   output)

During handling of the above exception, another exception occurred:

File "\\main.py", line 63, in finishing
subprocess.run('docker run ffmpeg -i '   name   ' -vcodec libx264 '   output)

This is how I docker my python app.


FROM python:3.11.0
COPY requirements.txt .
RUN pip install -r requirements.txt
RUN apt-get -y update
RUN apt-get install ffmpeg libsm6 libxext6  -y

ADD main.py .
CMD \["python","/main.py"\]

CodePudding user response：

If the python script mentioned in the beginning of the question is the content of main.py, then there are few issues with the implementation:

You cannot run docker with the python:3.11.0 as base image.
You need to mount the volume with the videos and just process them inside the container.

CodePudding user response：

To debug your problem my suggestion is to use your container interactively.

Try running a new container like this:

docker run -t -i <image-name-or-container-id> /bin/bash

Or attach to your running container:

docker exec -i -t <container-id> /bin/bash

In this way you can play around, try to launch ffmpeg from different paths, install other dependencies and finally see what you are missing.