python – Convert video to wav FFMPEG

“I am attempting to convert my input video file to audio in WAV format using ffmpeg and subprocess. However, I am encountering an error similar to the following:…”

import subprocess

def convert_video_to_wav(input_file, output_file):
    
    try:
        
        ffmpeg_cmd = [
            "ffmpeg",
            "-i", input_file,
            "-vn",
            "-acodec", "libmp3lame",
            "-y",
            output_file
        ]
        subprocess.run(ffmpeg_cmd, check=True)
        print(f"Successfully converted to WAV: {output_file}")
    except subprocess.CalledProcessError as e:
        print(f"Conversion failed: {e}")

input_file = "video.mp4"  
output_file = "output_audio.wav"  формате
convert_video_to_wav(input_file, output_file)

ERROR:
Conversion failed: Command ‘[‘ffmpeg’, ‘-i’, ‘video.mp4’, ‘-vn’, ‘-acodec’, ‘libmp3lame’, ‘-y’, ‘output_audio.wav’]’ returned non-zero exit status 4294967274.