mirror of
https://github.com/Ryujinx/libsoundio.git
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126 lines
4 KiB
C
126 lines
4 KiB
C
/*
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* Copyright (c) 2015 Andrew Kelley
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*
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* This file is part of libsoundio, which is MIT licensed.
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* See http://opensource.org/licenses/MIT
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*/
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#include <soundio.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdbool.h>
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// list or keep a watch on audio devices
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static int usage(char *exe) {
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fprintf(stderr, "Usage: %s [--watch]\n", exe);
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return 1;
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}
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static void print_channel_layout(const struct SoundIoChannelLayout *layout) {
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if (layout->name) {
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fprintf(stderr, "%s", layout->name);
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} else {
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fprintf(stderr, "%s", soundio_get_channel_name(layout->channels[0]));
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for (int i = 1; i < layout->channel_count; i += 1) {
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fprintf(stderr, ", %s", soundio_get_channel_name(layout->channels[i]));
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}
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}
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}
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static void print_device(struct SoundIoDevice *device, bool is_default) {
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const char *default_str = is_default ? " (default)" : "";
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const char *raw_str = device->is_raw ? " (raw)" : "";
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fprintf(stderr, "%s%s%s\n", device->description, default_str, raw_str);
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fprintf(stderr, " name: %s\n", device->name);
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if (device->probe_error) {
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fprintf(stderr, " probe error: %s\n", soundio_strerror(device->probe_error));
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} else {
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fprintf(stderr, " channel layout: ");
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print_channel_layout(&device->channel_layout);
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fprintf(stderr, "\n");
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fprintf(stderr, " min sample rate: %d\n", device->sample_rate_min);
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fprintf(stderr, " max sample rate: %d\n", device->sample_rate_max);
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if (device->sample_rate_current)
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fprintf(stderr, " current sample rate: %d\n", device->sample_rate_current);
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fprintf(stderr, " formats: ");
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for (int i = 0; i < device->format_count; i += 1) {
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const char *comma = (i == device->format_count - 1) ? "" : ", ";
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fprintf(stderr, "%s%s", soundio_format_string(device->formats[i]), comma);
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}
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fprintf(stderr, "\n");
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if (device->current_format != SoundIoFormatInvalid)
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fprintf(stderr, " current format: %s\n", soundio_format_string(device->current_format));
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}
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fprintf(stderr, "\n");
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}
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static int list_devices(struct SoundIo *soundio) {
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int output_count = soundio_get_output_device_count(soundio);
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int input_count = soundio_get_input_device_count(soundio);
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int default_output = soundio_get_default_output_device_index(soundio);
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int default_input = soundio_get_default_input_device_index(soundio);
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fprintf(stderr, "--------Input Devices--------\n\n");
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for (int i = 0; i < input_count; i += 1) {
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struct SoundIoDevice *device = soundio_get_input_device(soundio, i);
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print_device(device, default_input == i);
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soundio_device_unref(device);
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}
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fprintf(stderr, "\n--------Output Devices--------\n\n");
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for (int i = 0; i < output_count; i += 1) {
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struct SoundIoDevice *device = soundio_get_output_device(soundio, i);
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print_device(device, default_output == i);
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soundio_device_unref(device);
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}
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fprintf(stderr, "\n%d devices found\n", input_count + output_count);
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return 0;
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}
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static void on_devices_change(struct SoundIo *soundio) {
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fprintf(stderr, "devices changed\n");
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list_devices(soundio);
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}
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int main(int argc, char **argv) {
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char *exe = argv[0];
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bool watch = false;
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for (int i = 1; i < argc; i += 1) {
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char *arg = argv[i];
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if (strcmp("--watch", arg) == 0) {
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watch = true;
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} else {
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return usage(exe);
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}
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}
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struct SoundIo *soundio = soundio_create();
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if (!soundio) {
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fprintf(stderr, "out of memory\n");
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return 1;
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}
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int err;
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if ((err = soundio_connect(soundio))) {
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fprintf(stderr, "%s\n", soundio_strerror(err));
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return err;
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}
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if (watch) {
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soundio->on_devices_change = on_devices_change;
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for (;;) {
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soundio_wait_events(soundio);
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}
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} else {
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int err = list_devices(soundio);
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soundio_destroy(soundio);
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return err;
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}
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}
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