CODEWITHSUNDEEP
c#discorddiscord.net
Eldar Azulay
Eldar Azulay

Reputation: 271

Program crashes when I try to get the IAudioClient for a channel

I am using Discord.Net Api to make a bot the connects to a discord server and I want to bot to play music and audio. I can make the bot join a channel and it works great, but when I try to get the IAudioClient for the channel(from the IAudioClient I can get the audio output stream so I can write the music to it and that's what transfers the music) , I get an exception. This is my code for joining the channel and then getting the IAudioClient for the channel:

    [Command("join")]
    public async Task JoinChannel(IVoiceChannel channel = null)
    {
        channel = channel ?? (callingUser as IGuildUser)?.VoiceChannel;
        if(channel == null)
        {
            await callingMsg.Channel.SendMessageAsync("You must be in a voice channel.");
            return;
        }

        Console.WriteLine("Channel: " + channel.Name + " - " + channel.Id);
        try
        {
            audioClient = await channel.ConnectAsync(); //crashes here
        }
        catch(Exception e)
        {
            Console.WriteLine(e.Message);
        }
    }

I don't know if it makes the problem here, but I installed only the "ffmpeg" for the audio transmitting, but so far I don't see any problems with that, only with getting the audio channel. I used this tutorial: https://discord.foxbot.me/docs/guides/voice/sending-voice.html but on the top of the tutorial you can see a caption which says that the tutorial is out of date..

the exception I get is The operation has timed out.

21:39:18 Discord Discord.Net v1.0.1 (API v6) 21:39:19 Gateway Connecting 21:39:20 Gateway Connected 21:39:20 Gateway Ready Channel: תודה תודה תודה תודה תודה - 334069917047455747 21:39:29 Gateway A MessageReceived handler is blocking the gateway task. at Discord.WebSocket.SocketGuild.d__160.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Discord.WebSocket.SocketGuild.d__160.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Discord.WebSocket.SocketVoiceChannel.d__14.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() at ruin_counter.Program.d__9.MoveNext()

Upvotes: 1

Views: 1896

Answers (2)

Eldar Azulay
Eldar Azulay

Reputation: 271

The method await channel.ConnectAsync() can take some time until it returns a value, so I just noticed that I can write another method inside the brackets and that other method with get the needed IAudioClient like that: audioClient = await channel.ConnectAsync(SendAsync); 

        private void SendAsync(IAudioClient audioClient)
    {
        var ffmpeg = CreateStream("tune.mp3");
        var output = ffmpeg.StandardOutput.BaseStream;
        var discord = audioClient.CreatePCMStream(AudioApplication.Mixed);
        output.CopyToAsync(discord);
        discord.FlushAsync();        
    }

Upvotes: 0

Flamanis
Flamanis

Reputation: 156

If your command is timing out, it's because 'async' isn't exactly async. You need to set the RunMode of your command to Async

[Command("name",RunMode = RunMode.Async)]

Upvotes: 1

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