Discord.py在嵌入消息中发送youtube缩略图

Question

我试着学习如何制作一个音乐机器人，播放命令很好，但是youtube的缩略图没有显示当url是在嵌入消息中给出的时候。Idk有什么功能让机器人将youtube视频缩略图显示到嵌入消息中。这是代码：

@client.command()
async def play(ctx, url : str):
    song_there = os.path.isfile("song.mp3")
    try:
        if song_there:
            os.remove("song.mp3")
    except PermissionError:
        await ctx.send("Wait for the current playing music to end or use %leave <:_Paimon6:827074349450133524>")
        return

    voiceChannel = discord.utils.get(ctx.guild.voice_channels, name='Private')
    await voiceChannel.connect()
    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    em6 = discord.Embed(title = "Downloading Music", description = f'{url}\n\nPlease wait for paimon to setup the music you provide.\nMusic provided by {ctx.author.mention} <:_Paimon6:827074349450133524>',color = ctx.author.color)
    await ctx.send(embed = em6, delete_after = 2)

    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }
    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])
    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            os.rename(file, "song.mp3")
    voice.play(discord.FFmpegPCMAudio("song.mp3"))
    em1 = discord.Embed(title = "Now Listening", description = f'{url}\n\nPlease use %leave first to change music.\nMusic provided by {ctx.author.mention} <:_Paimon6:827074349450133524>',color = ctx.author.color)
    await ctx.send(embed = em1)

Answer 1

不管怎样，我想你是在找.set_image()方法。

您可以通过以下方式获得youtube视频的缩略图链接

https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg

就像解释的here。

检索youtube视频的id

videoID = url.split("watch?v=")[1].split("&")[0]

然后您可以将其设置为嵌入图像或缩略图。在你的例子中，应该是这样的

@client.command()
async def play(ctx, url : str):
    song_there = os.path.isfile("song.mp3")
    try:
        if song_there:
            os.remove("song.mp3")
    except PermissionError:
        await ctx.send("Wait for the current playing music to end or use %leave <:_Paimon6:827074349450133524>")
        return

    voiceChannel = discord.utils.get(ctx.guild.voice_channels, name='Private')
    await voiceChannel.connect()
    voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
    em6 = discord.Embed(title = "Downloading Music", description = f'{url}\n\nPlease wait for paimon to setup the music you provide.\nMusic provided by {ctx.author.mention} <:_Paimon6:827074349450133524>',color = ctx.author.color)
    await ctx.send(embed = em6, delete_after = 2)

    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }
    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])
    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            os.rename(file, "song.mp3")
    voice.play(discord.FFmpegPCMAudio("song.mp3"))
    em1 = discord.Embed(title = "Now Listening", description = f'{url}\n\nPlease use %leave first to change music.\nMusic provided by {ctx.author.mention} <:_Paimon6:827074349450133524>',color = ctx.author.color)

    # get id
    videoID = url.split("watch?v=")[1].split("&")[0]

    em1.set_image(url = "https://img.youtube.com/vi/{videoID}/0.jpg".format(videoID = videoID))
    await ctx.send(embed = em1)

如果您发现这个图像太大，也可以通过embed.set_thumbnail(url)将其设置为缩略图。