Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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/*
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely.
*/
#include <stdio.h>
#include "SDL.h"
static void
print_devices(int iscapture)
{
const char *typestr = ((iscapture) ? "capture" : "output");
int n = SDL_GetNumAudioDevices(iscapture);
SDL_Log("Found %d %s device%s:\n", n, typestr, n != 1 ? "s" : "");
if (n == -1)
SDL_Log(" Driver can't detect specific %s devices.\n\n", typestr);
else if (n == 0)
SDL_Log(" No %s devices found.\n\n", typestr);
else {
int i;
for (i = 0; i < n; i++) {
const char *name = SDL_GetAudioDeviceName(i, iscapture);
if (name != NULL)
SDL_Log(" %d: %s\n", i, name);
else
SDL_Log(" %d Error: %s\n", i, SDL_GetError());
}
SDL_Log("\n");
}
}
int
main(int argc, char **argv)
{
int n;
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
/* Load the SDL library */
if (SDL_Init(SDL_INIT_AUDIO) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
return (1);
}
/* Print available audio drivers */
n = SDL_GetNumAudioDrivers();
if (n == 0) {
SDL_Log("No built-in audio drivers\n\n");
} else {
int i;
SDL_Log("Built-in audio drivers:\n");
for (i = 0; i < n; ++i) {
SDL_Log(" %d: %s\n", i, SDL_GetAudioDriver(i));
}
SDL_Log("Select a driver with the SDL_AUDIODRIVER environment variable.\n");
}
SDL_Log("Using audio driver: %s\n\n", SDL_GetCurrentAudioDriver());
print_devices(0);
print_devices(1);
SDL_Quit();
return 0;
}