python - 使用 discord.py 时 ffmpeg 失败

Question

我正在制作一个具有 rickrolling 功能的机器人。它涉及ffmpeg，但它总是给出以下错误:

FFmpeg version SVN-r18639, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-memalign-hack --enable-postproc --enable-gpl --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-ffserver --enable-avisynth --enable-pthreads
  libavutil     50. 3. 0 / 50. 3. 0
  libavcodec    52.27. 0 / 52.27. 0
  libavformat   52.32. 0 / 52.32. 0
  libavdevice   52. 2. 0 / 52. 2. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Apr 21 2009 13:44:38, gcc: 4.2.4 (TDM-1 for MinGW)
Input #0, mp3, from 'rick.mp3':
  Duration: 00:03:33.10, start: 0.000000, bitrate: 192 kb/s
    Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 192 kb/s
Expected number for loglevel but found: warning

即使我切换到不同的文件，它也会一直出现这个错误，我做错了什么吗？我在 Windows python 3.8.2，discord.py 1.6.0 上。这是代码部分:

@bot.command(name="rickroll")
async def rick(ctx, channel: discord.VoiceChannel):
    connection = await channel.connect()
    connection.play(discord.FFmpegPCMAudio("rick.mp3", executable="ffmpeg.exe"))

Answer 1

确保您已将 FFmpeg 添加到 PATH 环境变量中。您可以找到有关如何执行此操作的信息 here .
要连接到语音 channel ，您需要传入 channel 的 ID，因为您无法在 Discord 中提及它。

import discord
from discord.ext import commands

voiceChannel = discord.utils.get(ctx.guild.voice_channels, id=channel)
await voiceChannel.connect()

现在我们需要与语音客户端建立连接

connection = discord.utils.get(bot.voice_clients, guild=ctx.guild)

所以最终的代码看起来像这样

import discord
from discord.ext import commands

@bot.command(name="rickroll")
async def rick(ctx, channel: int):
    voiceChannel = discord.utils.get(ctx.guild.voice_channels, id=channel)
    await voiceChannel.connect()
    connection = discord.utils.get(bot.voice_clients, guild=ctx.guild)

    connection.play(discord.FFmpegPCMAudio("rick.mp3"))