int configuresoundio()
{
int err;
soundio = soundio_create();
if(!soundio)
{
printf("soundio_create ERROR\n");
return 1;
}
//if((err = soundio_connect(soundio)))
if((err = soundio_connect_backend(soundio,SoundIoBackendAlsa)))
{
printf("soundio_connect ERROR\n");
return 1;
}
soundio_flush_events(soundio);
int default_out_device_index = soundio_default_output_device_index(soundio);
if (default_out_device_index < 0)
{
printf("soundio_default_output_device_index ERROR!");
return 1;
}
device = soundio_get_output_device(soundio,default_out_device_index);
if(!device)
{
printf("soundio_get_output_device ERROR!");
return 1;
}
printf("Output device: %s\n",device->name);
outstream = soundio_outstream_create(device);
outstream->format = SoundIoFormatS16NE; //SoundIoFormatFloat32NE;
outstream->write_callback = write_callback;
outstream->software_latency = 0.001;
if((err = soundio_outstream_open(outstream)))
{
printf("sound_outstream_open ERROR!");
return 1;
}
if(outstream->layout_error)
printf("outstream->layout_error");
if((err = soundio_outstream_start(outstream)))
{
printf("soundio_outstrea_start ERROR!");
return 1;
}
return 0;
}
bool SKAudio::start()
{
if(auto err = soundio_outstream_start(out))
{
logit("E: unable to start device: " << soundio_strerror(err));
return false;
}
return true;
}
void AudioSoundIo::startProcessing()
{
m_outBufFrameIndex = 0;
m_outBufFramesTotal = 0;
m_outBufSize = mixer()->framesPerPeriod();
m_outBuf = new surroundSampleFrame[m_outBufSize];
int err;
if ((err = soundio_outstream_start(m_outstream)))
{
fprintf(stderr, "soundio unable to start stream: %s\n", soundio_strerror(err));
}
}
int main(int argc, char **argv) {
char *exe = argv[0];
enum SoundIoBackend backend = SoundIoBackendNone;
char *device_id = NULL;
bool raw = false;
char *stream_name = NULL;
double latency = 0.0;
int sample_rate = 0;
for (int i = 1; i < argc; i += 1) {
char *arg = argv[i];
if (arg[0] == '-' && arg[1] == '-') {
if (strcmp(arg, "--raw") == 0) {
raw = true;
} else {
i += 1;
if (i >= argc) {
return usage(exe);
} else if (strcmp(arg, "--backend") == 0) {
if (strcmp(argv[i], "dummy") == 0) {
backend = SoundIoBackendDummy;
} else if (strcmp(argv[i], "alsa") == 0) {
backend = SoundIoBackendAlsa;
} else if (strcmp(argv[i], "pulseaudio") == 0) {
backend = SoundIoBackendPulseAudio;
} else if (strcmp(argv[i], "jack") == 0) {
backend = SoundIoBackendJack;
} else if (strcmp(argv[i], "coreaudio") == 0) {
backend = SoundIoBackendCoreAudio;
} else if (strcmp(argv[i], "wasapi") == 0) {
backend = SoundIoBackendWasapi;
} else {
fprintf(stderr, "Invalid backend: %s\n", argv[i]);
return 1;
}
} else if (strcmp(arg, "--device") == 0) {
device_id = argv[i];
} else if (strcmp(arg, "--name") == 0) {
stream_name = argv[i];
} else if (strcmp(arg, "--latency") == 0) {
latency = atof(argv[i]);
} else if (strcmp(arg, "--sample-rate") == 0) {
sample_rate = atoi(argv[i]);
} else {
return usage(exe);
}
}
} else {
return usage(exe);
}
}
struct SoundIo *soundio = soundio_create();
if (!soundio) {
fprintf(stderr, "out of memory\n");
return 1;
}
int err = (backend == SoundIoBackendNone) ?
soundio_connect(soundio) : soundio_connect_backend(soundio, backend);
if (err) {
fprintf(stderr, "Unable to connect to backend: %s\n", soundio_strerror(err));
return 1;
}
fprintf(stderr, "Backend: %s\n", soundio_backend_name(soundio->current_backend));
soundio_flush_events(soundio);
int selected_device_index = -1;
if (device_id) {
int device_count = soundio_output_device_count(soundio);
for (int i = 0; i < device_count; i += 1) {
struct SoundIoDevice *device = soundio_get_output_device(soundio, i);
bool select_this_one = strcmp(device->id, device_id) == 0 && device->is_raw == raw;
soundio_device_unref(device);
if (select_this_one) {
selected_device_index = i;
break;
}
}
} else {
selected_device_index = soundio_default_output_device_index(soundio);
}
if (selected_device_index < 0) {
fprintf(stderr, "Output device not found\n");
return 1;
}
struct SoundIoDevice *device = soundio_get_output_device(soundio, selected_device_index);
if (!device) {
fprintf(stderr, "out of memory\n");
return 1;
}
fprintf(stderr, "Output device: %s\n", device->name);
if (device->probe_error) {
fprintf(stderr, "Cannot probe device: %s\n", soundio_strerror(device->probe_error));
return 1;
}
struct SoundIoOutStream *outstream = soundio_outstream_create(device);
if (!outstream) {
fprintf(stderr, "out of memory\n");
return 1;
}
outstream->write_callback = write_callback;
outstream->underflow_callback = underflow_callback;
outstream->name = stream_name;
outstream->software_latency = latency;
outstream->sample_rate = sample_rate;
if (soundio_device_supports_format(device, SoundIoFormatFloat32NE)) {
outstream->format = SoundIoFormatFloat32NE;
write_sample = write_sample_float32ne;
} else if (soundio_device_supports_format(device, SoundIoFormatFloat64NE)) {
outstream->format = SoundIoFormatFloat64NE;
write_sample = write_sample_float64ne;
} else if (soundio_device_supports_format(device, SoundIoFormatS32NE)) {
outstream->format = SoundIoFormatS32NE;
write_sample = write_sample_s32ne;
} else if (soundio_device_supports_format(device, SoundIoFormatS16NE)) {
outstream->format = SoundIoFormatS16NE;
write_sample = write_sample_s16ne;
} else {
fprintf(stderr, "No suitable device format available.\n");
return 1;
}
if ((err = soundio_outstream_open(outstream))) {
fprintf(stderr, "unable to open device: %s", soundio_strerror(err));
return 1;
}
fprintf(stderr, "Software latency: %f\n", outstream->software_latency);
fprintf(stderr,
"'p\\n' - pause\n"
"'u\\n' - unpause\n"
"'P\\n' - pause from within callback\n"
"'c\\n' - clear buffer\n"
"'q\\n' - quit\n");
if (outstream->layout_error)
fprintf(stderr, "unable to set channel layout: %s\n", soundio_strerror(outstream->layout_error));
if ((err = soundio_outstream_start(outstream))) {
fprintf(stderr, "unable to start device: %s\n", soundio_strerror(err));
return 1;
}
for (;;) {
soundio_flush_events(soundio);
int c = getc(stdin);
if (c == 'p') {
fprintf(stderr, "pausing result: %s\n",
soundio_strerror(soundio_outstream_pause(outstream, true)));
} else if (c == 'P') {
want_pause = true;
} else if (c == 'u') {
want_pause = false;
fprintf(stderr, "unpausing result: %s\n",
soundio_strerror(soundio_outstream_pause(outstream, false)));
} else if (c == 'c') {
fprintf(stderr, "clear buffer result: %s\n",
soundio_strerror(soundio_outstream_clear_buffer(outstream)));
} else if (c == 'q') {
break;
} else if (c == '\r' || c == '\n') {
// ignore
} else {
fprintf(stderr, "Unrecognized command: %c\n", c);
}
}
soundio_outstream_destroy(outstream);
soundio_device_unref(device);
soundio_destroy(soundio);
return 0;
}
