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- import asyncio
- import discord
- import youtube_dl
- from discord.ext import commands
- # Suppress noise about console usage from errors
- youtube_dl.utils.bug_reports_message = lambda: ''
- ytdl_format_options = {
- 'format': 'bestaudio/best',
- 'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
- 'restrictfilenames': True,
- 'noplaylist': True,
- 'nocheckcertificate': True,
- 'ignoreerrors': False,
- 'logtostderr': False,
- 'quiet': True,
- 'no_warnings': True,
- 'default_search': 'auto',
- 'source_address': '0.0.0.0' # bind to ipv4 since ipv6 addresses cause issues sometimes
- }
- ffmpeg_options = {
- 'options': '-vn'
- }
- ytdl = youtube_dl.YoutubeDL(ytdl_format_options)
- class YTDLSource(discord.PCMVolumeTransformer):
- def __init__(self, source, *, data, volume=0.5):
- super().__init__(source, volume)
- self.data = data
- self.title = data.get('title')
- self.url = data.get('url')
- @classmethod
- async def from_url(cls, url, *, loop=None, stream=False):
- loop = loop or asyncio.get_event_loop()
- data = await loop.run_in_executor(None, lambda: ytdl.extract_info(url, download=not stream))
- if 'entries' in data:
- # take first item from a playlist
- data = data['entries'][0]
- filename = data['url'] if stream else ytdl.prepare_filename(data)
- return cls(discord.FFmpegPCMAudio(filename, **ffmpeg_options), data=data)
- class Music(commands.Cog):
- def __init__(self, bot):
- self.bot = bot
- @commands.command()
- async def join(self, ctx, *, channel: discord.VoiceChannel):
- """Joins a voice channel"""
- if ctx.voice_client is not None:
- return await ctx.voice_client.move_to(channel)
- await channel.connect()
- @commands.command()
- async def play(self, ctx, *, query):
- """Plays a file from the local filesystem"""
- source = discord.PCMVolumeTransformer(discord.FFmpegPCMAudio(query))
- ctx.voice_client.play(source, after=lambda e: print('Player error: %s' % e) if e else None)
- await ctx.send('Now playing: {}'.format(query))
- @commands.command()
- async def yt(self, ctx, *, url):
- """Plays from a url (almost anything youtube_dl supports)"""
- async with ctx.typing():
- player = await YTDLSource.from_url(url, loop=self.bot.loop)
- ctx.voice_client.play(player, after=lambda e: print('Player error: %s' % e) if e else None)
- await ctx.send('Now playing: {}'.format(player.title))
- @commands.command()
- async def stream(self, ctx, *, url):
- """Streams from a url (same as yt, but doesn't predownload)"""
- async with ctx.typing():
- player = await YTDLSource.from_url(url, loop=self.bot.loop, stream=True)
- ctx.voice_client.play(player, after=lambda e: print('Player error: %s' % e) if e else None)
- await ctx.send('Now playing: {}'.format(player.title))
- @commands.command()
- async def volume(self, ctx, volume: int):
- """Changes the player's volume"""
- if ctx.voice_client is None:
- return await ctx.send("Not connected to a voice channel.")
- ctx.voice_client.source.volume = volume / 100
- await ctx.send("Changed volume to {}%".format(volume))
- @commands.command()
- async def stop(self, ctx):
- """Stops and disconnects the bot from voice"""
- await ctx.voice_client.disconnect()
- @play.before_invoke
- @yt.before_invoke
- @stream.before_invoke
- async def ensure_voice(self, ctx):
- if ctx.voice_client is None:
- if ctx.author.voice:
- await ctx.author.voice.channel.connect()
- else:
- await ctx.send("You are not connected to a voice channel.")
- raise commands.CommandError("Author not connected to a voice channel.")
- elif ctx.voice_client.is_playing():
- ctx.voice_client.stop()
- bot = commands.Bot(command_prefix=commands.when_mentioned_or("!"),
- description='Relatively simple music bot example')
- @bot.event
- async def on_ready():
- print('Logged in as {0} ({0.id})'.format(bot.user))
- print('------')
- bot.add_cog(Music(bot))
- bot.run('token')
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