Пытаюсь разработать небольшое приложение для скачивания песен
с YouTube, с youtube_dl и kivy.
Однако, когда я нажимаю кнопку загрузки, экран останавливается, пока youtube_dl завершает загрузку. Только после завершения загрузки экран снова становится «живым».
Есть ли способ решить это? Я пробовал многопоточность, которая работала на pytube, но с youtube_dl она не работает должным образом.
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.textinput import TextInput
from kivy.uix.widget import Widget
from kivy.config import Config
from kivy.core.window import Window
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy.lang import Builder
from kivy.base import runTouchApp
from kivy.uix.button import Button
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.dropdown import DropDown
from kivy.uix.image import AsyncImage
from kivy.uix.behaviors import ButtonBehavior
from kivy.properties import ObjectProperty, StringProperty
import requests
import pytube
from kivy.uix.popup import Popup
from kivy.uix.image import Image
from time import sleep
import youtube_dl
import threading
import os
from kivy.utils import get_color_from_hex
from kivy.clock import Clock
Window.fullscreen = False
Config.set('graphics', 'resizable', 1)
Config.set('graphics', 'width', '600')
Config.set('graphics', 'height', '700')
Config.write()
class YoutubeDownloader(BoxLayout):
link_ = ObjectProperty() # This is objectProperty which == Url TextInput
male = ObjectProperty()
def __init__(self, **kwargs):
super().__init__(**kwargs)
checkbox_is_active = ObjectProperty(False)
self.chck_state = 'normal' # Down if checked Normal if Uncheck
self.title = '' # Music title
self.thumbnail_url = '' #Music Image thumbnail url
self.playlist_urls = [] # This List conaints All Music Urls from playlist
self.playlist_size = 0
self.single_url = []
self.convert_return_value = 0 # if this variable = 1 it means convert finished succesfully
self.is_playlist = False
def checkbox_is_clicked(self):
'''This function Check state of checkbox'''
x = self.ids.chck_box.state
self.chck_state = x
return 1
def convert(self):
main_url = self.link_.text
if self.chck_state == 'normal':
try:
self.remove_widget(self.ids.music_name)
self.remove_widget(self.ids.img_button)
yt = pytube.YouTube(main_url)
self.title = yt.title
self.thumbnail_url = yt.thumbnail_url
self.single_url = main_url
music_name_label = self.ids.music_name
music_asyncImage = self.ids.img_button
music_asyncImage.source = self.thumbnail_url
music_name_label.text = self.title
self.convert_return_value = 1
self.is_playlist = False
except:
popwind = Popup(
title='Error!', content=Label(
text='Please Enter Valid Url or if its playlist\nplease click playlist checkkbutton\nand convert'), size_hint=(
0.8, 0.2))
popwind.open()
self.convert_return_value = 0
elif self.chck_state == 'down':
try:
self.ids.music_name.text = ''
self.ids.img_button.source = ''
playlist = pytube.Playlist(main_url)
playlist.populate_video_urls()
self.playlist_urls = playlist.video_urls
self.playlist_size = len(playlist.video_urls)
self.ids.music_name.text = 'Playlist size: {}'.format(self.playlist_size)
music_asyncImage = self.ids.img_button
music_asyncImage.source = pytube.YouTube(self.playlist_urls[0]).thumbnail_url
self.convert_return_value = 1
self.is_playlist = True
except:
popwind = Popup(
title='Error!', content=Label(
text='Please Enter Valid Url or if its Single song\nplease unclick playlist checkkbutton\nand convert'), size_hint=(
0.8, 0.2))
popwind.open()
self.convert_return_value = 0
def download_mp3(self):
if self.convert_return_value == 1 and self.is_playlist == False:
self.ids.music_name.text = 'Download In Progress Please Wait'
self.ids.img_button.source = ''
self.ids.img_button.anim_delay = 0
self.ids.img_button.source = 'download.gif'
try:
download = threading.Thread(target=self.download_video_mp3_mp4(self.link_.text, self.title))
download.start()
except:
pass
# try:
# download = threading.Thread(target=self.download_video_mp3_mp4(self.link_.text, 'test download'))
# download.start()
# except:
# pass
self.ids.music_name.text = 'Download Finished succesfully'
self.ids.img_button.source = 'down_complete.png'
elif self.convert_return_value == 0:
popwind = Popup(
title='Error!', content=Label(
text='Download is Not Ready!!\nPlease corectly fill all Fields and CheckBoxes'), size_hint=(
0.8, 0.2))
popwind.open()
def download_video_mp3_mp4(self, song_url, song_title): # For single song
# yt = pytube.YouTube(self.link_.text)
# yt.streams.first().download()
#
# self.ids.music_name.text = 'Download Finished succesfully'
# self.ids.img_button.source = 'down_complete.png'
"""
Download a song using youtube url and song title
"""
outtmpl = song_title + '.%(ext)s'
ydl_opts = {
'format': 'bestaudio/best',
'outtmpl': outtmpl,
'postprocessors': [
{'key': 'FFmpegExtractAudio','preferredcodec': 'mp3',
'preferredquality': '192',
},
{'key': 'FFmpegMetadata'},
],
}
youtube_dl.YoutubeDL(ydl_opts).extract_info(song_url, download=True)
# self.ids.music_name.text = 'Download Finished succesfully'
# self.ids.img_button.source = 'down_complete.png'
def download_video(self):
if self.convert_return_value == 1 and self.is_playlist == False:
pass
elif self.convert_return_value == 0:
popwind = Popup(
title='Error!', content=Label(
text='Download is Not Ready!!\nPlease corectly fill all Fields and CheckBoxes'), size_hint=(
0.8, 0.2))
popwind.open()
class KivyApp(App):
def build(self):
self.title = 'Youtube Downloader'
return YoutubeDownloader()