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/*
* Copyright © 2015 Haakon Sporsheim <haakon.sporsheim@telenordigital.com>
*
* This program is made available under an ISC-style license. See the
* accompanying file LICENSE for details.
*/
/* libcubeb enumerate device test/example.
* Prints out a list of devices enumerated. */
#ifdef NDEBUG
#undef NDEBUG
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cubeb/cubeb.h"
static void
print_device_info(cubeb_device_info * info, FILE * f)
{
char devfmts[64] = "";
const char * devtype, * devstate, * devdeffmt;
switch (info->type) {
case CUBEB_DEVICE_TYPE_INPUT:
devtype = "input";
break;
case CUBEB_DEVICE_TYPE_OUTPUT:
devtype = "output";
break;
case CUBEB_DEVICE_TYPE_UNKNOWN:
default:
devtype = "unknown?";
break;
};
switch (info->state) {
case CUBEB_DEVICE_STATE_DISABLED:
devstate = "disabled";
break;
case CUBEB_DEVICE_STATE_UNPLUGGED:
devstate = "unplugged";
break;
case CUBEB_DEVICE_STATE_ENABLED:
devstate = "enabled";
break;
default:
devstate = "unknown?";
break;
};
switch (info->default_format) {
case CUBEB_DEVICE_FMT_S16LE:
devdeffmt = "S16LE";
break;
case CUBEB_DEVICE_FMT_S16BE:
devdeffmt = "S16BE";
break;
case CUBEB_DEVICE_FMT_F32LE:
devdeffmt = "F32LE";
break;
case CUBEB_DEVICE_FMT_F32BE:
devdeffmt = "F32BE";
break;
default:
devdeffmt = "unknown?";
break;
};
if (info->format & CUBEB_DEVICE_FMT_S16LE)
strcat(devfmts, " S16LE");
if (info->format & CUBEB_DEVICE_FMT_S16BE)
strcat(devfmts, " S16BE");
if (info->format & CUBEB_DEVICE_FMT_F32LE)
strcat(devfmts, " F32LE");
if (info->format & CUBEB_DEVICE_FMT_F32BE)
strcat(devfmts, " F32BE");
fprintf(f,
"dev: \"%s\"%s\n"
"\tName: \"%s\"\n"
"\tGroup: \"%s\"\n"
"\tVendor: \"%s\"\n"
"\tType: %s\n"
"\tState: %s\n"
"\tCh: %u\n"
"\tFormat: %s (0x%x) (default: %s)\n"
"\tRate: %u - %u (default: %u)\n"
"\tLatency: lo %ums, hi %ums\n",
info->device_id, info->preferred ? " (PREFERRED)" : "",
info->friendly_name, info->group_id, info->vendor_name,
devtype, devstate, info->max_channels,
(devfmts[0] == ' ') ? &devfmts[1] : devfmts,
(unsigned int)info->format, devdeffmt,
info->min_rate, info->max_rate, info->default_rate,
info->latency_lo_ms, info->latency_hi_ms);
}
static void
print_device_collection(cubeb_device_collection * collection, FILE * f)
{
uint32_t i;
for (i = 0; i < collection->count; i++)
print_device_info(collection->device[i], f);
}
static int
run_enumerate_devices(void)
{
int r = CUBEB_OK;
cubeb * ctx = NULL;
cubeb_device_collection * collection = NULL;
r = cubeb_init(&ctx, "Cubeb audio test");
if (r != CUBEB_OK) {
fprintf(stderr, "Error initializing cubeb library\n");
return r;
}
fprintf(stdout, "Enumerating input devices for backend %s\n",
cubeb_get_backend_id(ctx));
r = cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_INPUT, &collection);
if (r != CUBEB_OK) {
fprintf(stderr, "Error enumerating devices %d\n", r);
goto cleanup;
}
fprintf(stdout, "Found %u input devices\n", collection->count);
print_device_collection(collection, stdout);
cubeb_device_collection_destroy(collection);
fprintf(stdout, "Enumerating output devices for backend %s\n",
cubeb_get_backend_id(ctx));
r = cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_OUTPUT, &collection);
if (r != CUBEB_OK) {
fprintf(stderr, "Error enumerating devices %d\n", r);
goto cleanup;
}
fprintf(stdout, "Found %u output devices\n", collection->count);
print_device_collection(collection, stdout);
cubeb_device_collection_destroy(collection);
cleanup:
cubeb_destroy(ctx);
return r;
}
int main(int argc, char *argv[])
{
int ret;
ret = run_enumerate_devices();
return ret;
}
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