Running without console window?

[amamic1803]

I'm making a python script to convert video or image to ASCII art and I need ffmpeg for the last part. The thing is that when I build EXE file using PyInstaller (and select -noconsole option), when code execution comes to the point when ffmpeg is needed, console window still opens for each ffmpeg process opened. I open two processes, code for which is provided here:

process_in = ffmpeg.input(open_path, r=fps)[v_stream_indx].output('pipe:', format='rawvideo', pix_fmt='rgb24', r=fps).run_async(pipe_stdout=True, cmd=ffmpeg_path)

process_out = ffmpeg.input('pipe:', format='rawvideo', pix_fmt='rgb24', s=f'{width}x{height}', r=fps).output(ffmpeg.input(open_path, r=fps, vn=None), save_path, pix_fmt=pixel_format, r=fps, vcodec=og_codec, codec="copy").overwrite_output().run_async(pipe_stdin=True, cmd=ffmpeg_path)

Of course I don't want those console windows as my app has GUI. Strangely, there is no output in any of those 2 windows (I would expect it to be because there are many logs printed out when run from pycharm where main script output is printed out, BTW is there a way to disable that?).

[amamic1803]

Solved. (https://stackoverflow.com/a/71741286/9927277)
@kkroening could you review linked answer? I don't understand what he did and why it works, but if it is a good fix it would be nice to include it in official pip release.

[zhiyiYo]

The most elegant method is using monkey patch, note that the version of ffmpeg-python is 0.2.0:

import subprocess
import sys
import ffmpeg
from ffmpeg._run import output_operator


# monkey patch
@output_operator()
def patched_run_async(
    stream_spec,
    cmd='ffmpeg',
    pipe_stdin=False,
    pipe_stdout=False,
    pipe_stderr=False,
    quiet=False,
    overwrite_output=False,
):
    # hide windows console
    creationflags = 0
    if sys.platform == "win32":
        creationflags = subprocess.CREATE_NO_WINDOW

    args = ffmpeg._run.compile(stream_spec, cmd, overwrite_output=overwrite_output)
    stdin_stream = subprocess.PIPE if pipe_stdin else None
    stdout_stream = subprocess.PIPE if pipe_stdout or quiet else None
    stderr_stream = subprocess.PIPE if pipe_stderr or quiet else None
    return subprocess.Popen(
        args, stdin=stdin_stream, stdout=stdout_stream, stderr=stderr_stream, creationflags=creationflags
    )

ffmpeg._run.run_async = patched_run_async