Handy script to convert mp3 to mp4 and place cover as image video.

mp3-to-mp4.py

from PIL import Image
from mutagen.id3 import ID3
from mutagen.mp3 import MP3
from io import BytesIO
import sys
import os
import glob
import ffmpeg

dir_path = os.path.dirname(os.path.realpath(__file__))

mp3Files = []
for file in glob.glob("*.mp3"):
    mp3Files.append(file)
    song_path = os.path.join(dir_path, file)
    song_name = os.path.splitext(file)[0]
    img_path = song_name + '.jpg'
    video_path = song_name + '.mp4'

    track = MP3(song_path)
    tags = track.tags
    print(tags.pprint())
    print("LENGTH=" + str(track.info.length))
    pict = tags.get("APIC:").data
    im = Image.open(BytesIO(pict))
    im.save(img_path)
    print('Picture size : ' + str(im.size))
    print('Picture size : ' + str(im.size[0]))

    width = im.size[0]
    height = im.size[1]
    if (im.size[0] % 2 != 0):
        width = im.size[0] + 1

    if (im.size[1] % 2 != 0):
        height = im.size[1] + 1

    in_image = ffmpeg.input(img_path).filter(
        'scale', size=str(width) + ":" + str(height), force_original_aspect_ratio='increase')
    in_audio = ffmpeg.input(song_path)

    (
        ffmpeg
        .concat(in_image, in_audio, v=1, a=1)
        .output(video_path)
        .run(overwrite_output=True)
    )
# joined = ffmpeg.concat(in_file, in_image).node