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#include "sound.h"
#include "common/io.h"
#include <fcntl.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/audioio.h>
#include <sys/ioctl.h>
const char* ffDetectSound(FFSoundOptions* options, FFlist* devices) {
int defaultDev;
{
char audiop[12];
ssize_t plen = readlink("/dev/audio", audiop, ARRAY_SIZE(audiop));
if (plen < (ssize_t) strlen("audioN")) {
return "readlink(/dev/audio) failed";
}
defaultDev = audiop[plen - 1] - '0';
if (defaultDev < 0 || defaultDev > 9) {
return "Invalid audio device";
}
}
char path[] = "/dev/audio0";
for (int idev = 0; idev < 9; ++idev) {
bool isMain = idev == defaultDev;
if ((options->soundType & FF_SOUND_TYPE_MAIN) && !isMain) {
continue;
}
path[strlen("/dev/audio")] = (char) ('0' + idev);
FF_AUTO_CLOSE_FD int fd = open(path, O_RDWR | O_CLOEXEC);
if (fd < 0) {
break;
}
audio_device_t ad;
if (ioctl(fd, AUDIO_GETDEV, &ad) < 0) {
continue;
}
audio_info_t ai;
if (ioctl(fd, AUDIO_GETINFO, &ai) < 0) {
continue;
}
FFSoundDevice* device = FF_LIST_ADD(FFSoundDevice, *devices);
ffStrbufInitS(&device->identifier, path);
ffStrbufInitS(&device->name, ad.name);
ffStrbufTrimRightSpace(&device->name);
ffStrbufInitF(&device->platformApi, "%s", "SunAudio");
device->volume = (uint8_t) ((ai.play.gain * 100 + AUDIO_MAX_GAIN / 2) / AUDIO_MAX_GAIN);
device->type = FF_SOUND_TYPE_ACTIVE | (isMain ? FF_SOUND_TYPE_MAIN : FF_SOUND_TYPE_NONE);
}
return NULL;
}
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