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• discord.py music bot slowing down for longer audio queries

  1er janvier 2023, par Bobluge

  So I'm trying to make a music bot with discord.py. Shown below is a minimum working example of the bot with the problematic functions :

  


  import os

import discord
from discord.ext import commands
from discord import player as p

import yt_dlp as youtube_dl

intents = discord.Intents.default()
intents.members = True

bot = commands.Bot(command_prefix=';')

class Music(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.yt-dlp_opts = {
            'format': 'bestaudio/best',
            'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s',
            'restrictfilenames': True,
            'noplaylist': True,
            'playlistend': 1,
            '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
        }
        self.ffmpeg_opts = {
            'options': '-vn',
            # Source: https://stackoverflow.com/questions/66070749/
            "before_options": "-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5",
        }
        self.cur_stream = None
        self.cur_link = None

    @commands.command(aliases=["p"])
    async def play(self, ctx, url):
        yt-dlp = youtube_dl.YoutubeDL(self.ytdl_opts)
        data = yt-dlp.extract_info(url, download=False)
        filename = data['url']  # So far only works with links
        print(filename)
        audio = p.FFmpegPCMAudio(filename, **self.ffmpeg_opts)
        self.cur_stream = audio
        self.cur_link = filename

        # You must be connected to a voice channel first
        await ctx.author.voice.channel.connect()
        ctx.voice_client.play(audio)
        await ctx.send(f"now playing")

    @commands.command(aliases=["ff"])
    async def seek(self, ctx):
        """
        Fast forwards 10 seconds
        """
        ctx.voice_client.pause()
        for _ in range(500):
            self.cur_stream.read()  # 500*20ms of audio = 10000ms = 10s
        ctx.voice_client.resume()

        await ctx.send(f"fast forwarded 10 seconds")

    @commands.command(aliases=["j"])
    async def jump(self, ctx, time):
        """
        Jumps to a time in the song, input in the format of HH:MM:SS
        """
        ctx.voice_client.stop()
        temp_ffempg = {
            'options': '-vn',
            # Keyframe skipping when passed as an input option (fast)
            "before_options": f"-ss {time} -reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5",
        }
        new_audio = p.FFmpegPCMAudio(self.cur_link, **temp_ffempg)
        self.cur_stream = new_audio
        ctx.voice_client.play(new_audio)
        await ctx.send(f"skipped to {time}")


bot.add_cog(Music(bot))
bot.run(os.environ["BOT_TOKEN"])


  


  My requirements.txt file :

  


  discord.py[voice]==1.7.3
yt-dlp==2021.9.2


  


  To play a song in Discord the following format is used :

  


  ;p 


  


  Where is any link that yt-dlp supports. Under normal circumstances, the ;p command is used with songs that are relatively short, to which seek() and jump() work extremely quickly to do what they are supposed to do. For example if I execute these sequence of commands in Discord :

  


  ;p https://www.youtube.com/watch?v=n8X9_MgEdCg  <- 4 min song


  


  And when the bot starts playing, spam the following :

  


  ;ff
;ff
;ff
;ff
;ff


  


  The bot is able to almost instantly seek five 10-second increments of the song. Additionally, I can jump to the three minute mark very quickly with :

  


  ;j 00:03:00


  


  From some experimentation, the seek() and jump() functions seem to work quickly for songs that are under 10 minutes. If I try the exact same sequence of commands but with a 15 minute song like https://www.youtube.com/watch?v=Ks9Ck5LfGWE or longer https://www.youtube.com/watch?v=VThrx5MRJXA (10 hours classical music), there is an evident slowdown when running the ;ff command. However, when I include a few seconds of delay between firings of the ;ff command, the seeking is just as fast as previously mentioned. I'm not exactly sure what is going on with yt-dlp/FFmpeg behind the scenes when streaming, but I speculate that there is some sort of internal buffer, and songs that pass a certain length threshold are processed differently.

  


  For longer songs, the seek() command takes longer to get to the desired position, which makes sense since this site specifies that -ss used as an input option loops through keyframes (as there must be more keyframes in longer songs). However, if the following commands are run in Discord :

  


  ;p https://www.youtube.com/watch?v=VThrx5MRJXA  <- 10 hour classical music
;j 09:00:00                                     <- jump to 9 hour mark
;j 00:03:00                                     <- jump to 3 minute mark


  


  The first seek command takes around 5 to 10 seconds to perform a successful seek, which isn't bad, but it could be better. The second seek command takes around the same time as the first command, which doesn't make sense to me, because I thought less keyframes were skipped in order to reach the 3 minute mark.

  


  So I'm wondering what's going on, and how to potentially solve the following :

  


  

  • What is actually going on with the seek() command ? My implementation of seek() uses discord.py's discord.player.FFmpegPCMAudio.read() method, which apparently runs slower if the song's length is longer ? Why ?

  


  • Why does input seeking for long YouTube videos take almost the same time no matter where I seek to ?

  


  • How the yt-dlp and FFmpeg commands work behind the scenes to stream a video from YouTube (or any other website that YTDL supports). Does yt-dlp and FFmpeg behave differently for audio streams above a certain length threshold ?

  


  • Potential ways to speed up seek() and jump() for long songs. I recall some well-known discord music bots were able to do this very quickly.

  


  


• Discord.py - Streaming Youtube Live into Voice

  4 juin 2021, par SUPER MECH M500

  I'm back on the stacks, was banned from asking questions because they were terrible apparently, but I need help on something I've done a lot of research on but cannot find my answer ;

  


  I need to be able to stream a youtube live stream's audio into a VC for radio music using discord.py Rewrite. I've been looking at Youtube_DL- and/or FFMpeg-related internet posts and all were either outdated (discord.py==0.16.x) or involved downloading youtube videos (can't do that with ongoing streams).

  


  And I've also tried to look through the discord.py v0.16.12 voice_client.py create_ytdl_player. But to no avail, I could not find any solutions.

  


  This is my current situation in my code. It is a background task in one of my cogs.

  


      @loop(seconds=5)
    async def check_voice(self):
        try:
            channel = await self.bot.fetch_channel(819346920082112532)
        except NotFound:
            print("[IR] `韎

• Simple discord.py mp3 bot not playing music

  18 avril 2023, par Lukas Nesvarbu

  Discord bot dosent play anykind of music, neither mine nor other bots codes work he just dosent play music. idk maybe i am just stupid BUT IT DOSENT WORK WHY

  


  import discord
import time
import os
from discord.ext import commands

BOT_TOKEN = "" # put token here

intentss = discord.Intents.default()
intentss.message_content = True
intentss.voice_states = True

bot = commands.Bot(command_prefix=";;", intents = intentss)

OPUS_LIBS = ['libopus-0.x86.dll', 'libopus-0.x64.dll', 'libopus-0.dll', 'libopus.so.0', 'libopus.0.dylib']

@bot.command()
async def join(ctx):
    channelVC = ctx.author.voice.channel
    await channelVC.connect()

@bot.command()
async def leave(ctx):
    await ctx.voice_client.disconnect()

@bot.command()
async def play(ctx):
    voice = ctx.guild.voice_client
    mloc = 'C:/Users/Lukas/Desktop/Bot Bethoven/Youtube/test.mp3'
    voice.play(discord.FFmpegPCMAudio(executable = "C:/ffmpeg/bin/ffmpeg.exe", source = mloc))


bot.run(BOT_TOKEN)


  


  it just give error codes :

  


  discord.ext.commands.errors.CommandInvokeError: Command raised an exception: ClientException: Not connected to voice.
INFO     discord.player ffmpeg process 22896 has not terminated. Waiting to terminate...
INFO     discord.player ffmpeg process 22896 should have terminated with a return code of 1.


  


  intresting thing when i put join and play in the same command it dosent show not connected to voice error, actually it dosent show anything and neither plays mp3 file

  


  i tryed reinstalling : PyNaCl, FFmpeg, Visual Code, updating python.
nothing helps. this problem started after i did 1 month break from coding bot, before that it worked fine.

  


  i'm thinking problem is something with my pc, maybe path or something dosent work(because it worked month ago and i didnt do anything to code), i tryed checking but everything seems normal,