ogg audio file is not played by pygame

Question

I have the next version of pygame package: pygame 2.5.0 (SDL 2.28.0) in python 3.10.8.

.ogg file generated by telegram client and uploaded to server is successfully played by VLS application but next python code

import pygame

audio_file_path = r'<OGG PATH>'
pygame.mixer.init()

try:
    pygame.mixer.music.load(audio_file_path)

except pygame.error as e:
    print("Error:", e)

brings the next error:

Error: stb_vorbis_open_rwops: VORBIS_invalid_first_page

What may be the error reason and what are additional tools that may allow me to check ogg file validity?

Answer 1

When testing your code with my own .ogg file no errors occured. So this might just be happening to this one file. I can't tell you a reason why this happens, but i can tell you the solutions i found.

Both solutions require downloading a module called pydub

---

Solution 1

import pygame
from pydub import AudioSegment
from io import BytesIO

def convert_ogg_to_mp3_object(ogg_path):
    # Load the OGG file
    ogg_audio = AudioSegment.from_ogg(ogg_path)

    # Export the OGG audio as MP3 and return the BytesIO object
    mp3_object = BytesIO()
    ogg_audio.export(mp3_object, format="mp3")

    return mp3_object

audio_file_path = r'<OGG PATH>'

file_obj = convert_ogg_to_mp3_object(audio_file_path)
pygame.mixer.init()
pygame.mixer.music.load(file_obj, "")

Here we convert the *.ogg file to an mp3 file object and lucky for us pygame accepts file objects as seen here.

---

Solution 2

This solution creates a mp3 file in your system rather than storing a file object.

import pygame
from pydub import AudioSegment

def convert_ogg_to_mp3(ogg_path, mp3_path):
    # Load the OGG file
    ogg_audio = AudioSegment.from_ogg(ogg_path)

    # Export the OGG file as MP3 to the specified path
    ogg_audio.export(mp3_path, format="mp3")

audio_file_path = r'<OGG PATH>'
output_file = "<OUTPUT PATH>"

convert_ogg_to_mp3(audio_file_path, output_file)
pygame.mixer.init()
pygame.mixer.music.load("out.mp3", "mp3")

---

Both solutions work, but the first solution runs just a bit faster than the second. So if you are looking for performance i would suggest the first solution.

If there's a need to convert other files to .mp3 or back to .ogg pydub can do it.