SLT Music Bot

This is a small WPF application that is designed to create a discord bot to play music on a discord server. It uses Discord.Net for the web backend and WPF for the frontend.

Building

To build this application you will need the following:

• .net 6 - just needs to be installed.
• A discord bot token as a system variable by the name SLTPrivateMusicBotToken - see discord dev portal for more info on bot tokens
• FFMpeg compiled binary in your output directory - FFMpeg is used to convert any user-inserted data to PCM 48000 sr audio data.
• FFProbe compiled binary in your output directory - FFProbe is used to get the audio metadata without parsing the whole file.
• libopus and libsodium dynamic link libraries in your output directory - required by Discord.Net. !IMPORTANT! libopus.dll must be renamed to opus.dll for Discord.Net to work
• youtube-dl compiled binary in your output directory optional - allows the bot to download youtube videos and play them as music.

Usage

• Using the discord bot creation tool invite the bot to your server. In theory it only needs permissions to read messages/roles, join voice channels and stream audio. However in practice usually an admin role will be needed. Not really sure why, but otherwise discord's api will return a permission error on any operation.
• Start the executable and press connect. Your bot should go online.
• Make an administrator of the server ping the bot in any channel while they are in a voice channel. The bot should join the channel.
• Drag and drop your media files into the bot application window. It will process them and put them into the playlist.
• optional if youtube-dl is installed you can drag and drop a youtube link into the application aswell, though downloading videos takes a considerable amount of time.
• Play your audio using the controls.

Disclaimer

This is a hobby project and was not really intended for a real usage outside of the debug mode in an IDE. The repository here on github exists for educational purposes mostly. The bot is also not well-optimized, storing the PCM in ram (only the currently playing one).