python-3.x - 来自机器人的土 bean 质量音频

Question

当我通过我的机器人播放音频时，它听起来真的很糟糕，我有一个快速的互联网连接，那么这可能是什么原因造成的？我在 Raspberry Pi 3 上运行我的机器人。我使用 FFMpeg。 RPI 是否会以某种方式使其成为瓶颈。是我的代码吗？
我的代码的简化版本:

@client.command()
async def play(ctx):
    channel = client.get_channel(ctx.message.author.voice.channel.id)
    voice = await channel.connect()
    if not voice.is_playing():
        voice.play(await discord.FFMpegOpusAudio(source='/path/to/file'))
        while voice.is_playing():
            await asyncio.sleep(1)
    discord.AudioSource.cleanup(str(ctx.message.author.voice.channel.id))

Answer 1

看pafy文档，您必须这样做:

def download_song(url)
    video = pafy.new(url)
    best = video.getbest()
    best.download(quiet=False)

但是，我建议使用:

youtube-dl :

pip install youtube-dl

from youtube_dl import YoutubeDL

ydl_opts = {
    'format': 'bestaudio/best',
    'noplaylist':'True',
    'outtmpl': 'song.%(ext)s'
    'postprocessors': [{
        'key': 'FFmpegExtractAudio',
        'preferredcodec': 'mp3',
        'preferredquality': '192',
    }],
}

def download_song(arg, url=True):
    with YoutubeDL(ydl_opts) as ydl:
        query = f"ytsearch:{arg}" if url else arg
        data = ydl.extract_info(query, download=True)
    return data if url else data['entries'][0]

def display_info(data):
    video_info = {
        'title': data['title']
        'duration': data['duration']
        'uploader': data['uploader']
        'thumbnail': data['thumbnail']
        'url': data['webpage_url']
        'channel': data['channel_url']
    }
    for key, val in video_info.items():
        print(f"{key}: {val}")

此功能将允许您从 url 和查询(例如“30 秒视频”)下载歌曲。 youtube_dl报价 a lot of options .

Wavelink (用于 discord.py 的 lavalink 包装器 → 更好的音频和音频控制):

pip install lavalink

#Wavelink github example
import discord
import wavelink
from discord.ext import commands


class Bot(commands.Bot):

    def __init__(self):
        super(Bot, self).__init__(command_prefix=['audio ', 'wave ','aw '])

        self.add_cog(Music(self))

    async def on_ready(self):
        print(f'Logged in as {self.user.name} | {self.user.id}')


class Music(commands.Cog):

    def __init__(self, bot):
        self.bot = bot

        if not hasattr(bot, 'wavelink'):
            self.bot.wavelink = wavelink.Client(bot=self.bot)

        self.bot.loop.create_task(self.start_nodes())

    async def start_nodes(self):
        await self.bot.wait_until_ready()

        # Initiate our nodes. For this example we will use one server.
        # Region should be a discord.py guild.region e.g sydney or us_central (Though this is not technically required)
        await self.bot.wavelink.initiate_node(host='127.0.0.1',
                                              port=2333,
                                              rest_uri='http://127.0.0.1:2333',
                                              password='youshallnotpass',
                                              identifier='TEST',
                                              region='us_central')

    @commands.command(name='connect')
    async def connect_(self, ctx, *, channel: discord.VoiceChannel=None):
        if not channel:
            try:
                channel = ctx.author.voice.channel
            except AttributeError:
                raise discord.DiscordException('No channel to join. Please either specify a valid channel or join one.')

        player = self.bot.wavelink.get_player(ctx.guild.id)
        await ctx.send(f'Connecting to **`{channel.name}`**')
        await player.connect(channel.id)

    @commands.command()
    async def play(self, ctx, *, query: str):
        tracks = await self.bot.wavelink.get_tracks(f'ytsearch:{query}')

        if not tracks:
            return await ctx.send('Could not find any songs with that query.')

        player = self.bot.wavelink.get_player(ctx.guild.id)
        if not player.is_connected:
            await ctx.invoke(self.connect_)

        await ctx.send(f'Added {str(tracks[0])} to the queue.')
        await player.play(tracks[0])


bot = Bot()
bot.run('TOKEN')

这个更复杂，但可以让你更好地控制你的音乐播放器。个人认为youtube-dl足以播放不和谐的音频，但这取决于您。