pythonmoviepy

Converting mp4 to mp3 and audio coming out "repeating" in Python (moviepy)

Well, i was trying to make a program that you could download mp4 and mp3 files from youtube. The mp4 part is alright, but the mp3 part... ouch Since yesterday i was trying to do sometype of converting mechanism (i'm new to coding) that took the mp4 file that i downloaded and then convert it to mp3, after hours and hours i found way that could do it in a way that i can hear the audio (simply changing the .mp4 to .mp3 didnt work).

But theres a slight problem, after about 4 seconds of audio, it starts repeating itself, just like a scratched cd, and i have no ideia of how to fix it.

import os
from pytube import YouTube
from moviepy.editor import *

link = input("Coloque o link: ")
yt = YouTube(link)

def removespecialchars(string):
    allowed_chars = set('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-()[]{}\\:')
    cleaned_string = ''.join(char for char in string if char in allowed_chars)
    cleaned_string += ".mp3"
    return cleaned_string


print("Title: ", yt.title)
print("Views: ", yt.views)

while True:
    formatChoice = input("Você quer mp3 ou mp4? ").upper()
    if formatChoice == "MP4":
        youtubeDownloadMP4 = yt.streams.get_highest_resolution()
        youtubeDownloadMP4.download("D:\\Videos\\YoutubeVideo")
        print("Seu vídeo foi instalado")
        break
    elif formatChoice == "MP3":
        youtubeDownloadMP3 = yt.streams.filter(only_audio=True).first()
        caminho = ("D:\\Music")
        mp3filename = removespecialchars(yt.title)
        mp3path = os.path.join(caminho, mp3filename)
        youtubeDownloadMP3.download(caminho, filename=mp3filename)

        audioClip = AudioFileClip(mp3path)
        audioClip.write_audiofile(mp3path, codec='libmp3lame')

        print("Seu mp3 foi instalado")
        break
    else:
        print("Escreva 'mp3' ou 'mp4' burro")

(something are in portuguese, dont worry bout it)

expecting it to work as normally, the mp3 file (already converted) started repeating about 4 secs

Solution

  • It's unclear why the audio crashes after the conversion according to your provided information. (Maybe it's an encoding/decoding issue?)

    Instead of using moviepy, you could try ffmpeg, which may be more robust and can automatically determine which codec to use. In this case, just replace the following lines in your code:

    audioClip = AudioFileClip(mp3path)
audioClip.write_audiofile(mp3path, codec='libmp3lame')

    to this:

    ffmpeg.input(mp3path).output(mp3path.replace('.mp3', '_convert.mp3')).run()

    p.s. In order to make use of ffmpeg in Python, you need to install it with pip install ffmpeg-python and add import ffmpeg at the beginning of your code.