D++ (DPP)
C++ Discord API Bot Library
Record Yourself in a VC

DPP supports receiving audio. This example shows how to use it to record some user in a VC.

Note
Voice receiving by bots is not officially supported by the Discord API. We cannot guarantee that this feature will work in the future.
#include <dpp/dpp.h>
#include <iomanip>
#include <sstream>
int main() {
/* Example to record a user in a VC
*
* Recording is output as './me.pcm' and you can play it via the soundboard example
* or use ffmpeg 'ffplay -f s16le -ar 48000 -ac 2 -i ./me.pcm'
*/
/* Replace with the user's id you wish to record */
dpp::snowflake user_id = 407877550216314882;
/* Setup the bot */
dpp::cluster bot("token");
FILE *fd;
fd = fopen("./me.pcm", "wb");
/* The event is fired when someone issues your commands */
bot.on_slashcommand([&bot, &fd](const dpp::slashcommand_t& event) {
/* Check which command they ran */
if (event.command.get_command_name() == "record") {
/* Get the guild */
dpp::guild* g = dpp::find_guild(event.command.guild_id);
/* Attempt to connect to a voice channel, returns false if we fail to connect. */
if (!g->connect_member_voice(event.command.get_issuing_user().id)) {
event.reply("You don't seem to be in a voice channel!");
return;
}
/* Tell the user we joined their channel. */
event.reply("Joined your channel, now recording!");
} else if (event.command.get_command_name() == "stop") {
event.from->disconnect_voice(event.command.guild_id);
fclose(fd);
event.reply("Stopped recording.");
}
});
bot.on_voice_receive([&bot, &fd, &user_id](const dpp::voice_receive_t &event) {
if (event.user_id == user_id) {
fwrite((char *)event.audio, 1, event.audio_size, fd);
}
});
bot.on_ready([&bot](const dpp::ready_t & event) {
if (dpp::run_once<struct register_bot_commands>()) {
/* Create a new command. */
dpp::slashcommand recordcommand("record", "Joins your voice channel and records you.", bot.me.id);
dpp::slashcommand stopcommand("stop", "Stops recording you.", bot.me.id);
bot.global_bulk_command_create({ recordcommand, stopcommand });
}
});
/* Start bot */
bot.start(dpp::st_wait);
return 0;
}
dpp::slashcommand_t
User has issued a slash command.
Definition: dispatcher.h:715
dpp::st_wait
@ st_wait
Wait forever on a condition variable. The cluster will spawn threads for each shard and start() will ...
Definition: cluster.h:101
dpp::voice_receive_t::user_id
snowflake user_id
User ID of speaker (zero if unknown)
Definition: dispatcher.h:2112
dpp::snowflake
A container for a 64 bit unsigned value representing many things on discord. This value is known in d...
Definition: snowflake.h:70
dpp::interaction_create_t::command
interaction command
command interaction
Definition: dispatcher.h:698
dpp::slashcommand
Represents an application command, created by your bot either globally, or on a guild.
Definition: appcommand.h:1361
dpp::utility::cout_logger
std::function< void(const dpp::log_t &)> DPP_EXPORT cout_logger()
Get a default logger that outputs to std::cout. e.g.
Definition: dispatcher.h:228
dpp::interaction::get_command_name
std::string get_command_name() const
Get the command name for a command interaction.
dpp::interaction_create_t::reply
void reply(command_completion_event_t callback=utility::log_error()) const
Acknowledge interaction without displaying a message to the user, for use with button and select menu...
dpp::cluster
The cluster class represents a group of shards and a command queue for sending and receiving commands...
Definition: cluster.h:99
dpp::voice_receive_t
voice receive packet
Definition: dispatcher.h:2055
dpp::ready_t
Session ready.
Definition: dispatcher.h:981
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