mirror of
https://github.com/Ryujinx/libsoundio.git
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105 lines
3.4 KiB
C
105 lines
3.4 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 <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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__attribute__ ((cold))
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__attribute__ ((noreturn))
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__attribute__ ((format (printf, 1, 2)))
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static void panic(const char *format, ...) {
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va_list ap;
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va_start(ap, format);
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vfprintf(stderr, format, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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abort();
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}
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static void read_callback(struct SoundIoInputDevice *input_device) {
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fprintf(stderr, "read_callback\n");
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}
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static void write_callback(struct SoundIoOutputDevice *output_device, int requested_frame_count) {
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fprintf(stderr, "write_callback\n");
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}
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static void underrun_callback(struct SoundIoOutputDevice *output_device) {
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static int count = 0;
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fprintf(stderr, "underrun %d\n", count++);
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soundio_output_device_fill_with_silence(output_device);
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}
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int main(int argc, char **argv) {
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struct SoundIo *soundio = soundio_create();
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if (!soundio)
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panic("out of memory");
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int err;
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if ((err = soundio_connect(soundio)))
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panic("error connecting: %s", soundio_error_string(err));
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int default_out_device_index = soundio_get_default_output_device_index(soundio);
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if (default_out_device_index < 0)
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panic("no output device found");
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int default_in_device_index = soundio_get_default_input_device_index(soundio);
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if (default_in_device_index < 0)
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panic("no output device found");
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struct SoundIoDevice *out_device = soundio_get_output_device(soundio, default_out_device_index);
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if (!out_device)
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panic("could not get output device: out of memory");
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struct SoundIoDevice *in_device = soundio_get_input_device(soundio, default_in_device_index);
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if (!in_device)
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panic("could not get input device: out of memory");
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fprintf(stderr, "Input device: %s\n", soundio_device_description(in_device));
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fprintf(stderr, "Output device: %s\n", soundio_device_description(out_device));
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const struct SoundIoChannelLayout *in_layout = soundio_device_channel_layout(in_device);
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const struct SoundIoChannelLayout *out_layout = soundio_device_channel_layout(out_device);
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if (!soundio_channel_layout_equal(in_layout, out_layout))
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panic("channel layouts not compatible");
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if (soundio_device_sample_rate(in_device) != soundio_device_sample_rate(out_device))
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panic("sample rates not compatible");
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double latency = 0.1;
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struct SoundIoInputDevice *input_device;
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soundio_input_device_create(in_device, SoundIoSampleFormatFloat, latency, NULL,
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read_callback, &input_device);
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struct SoundIoOutputDevice *output_device;
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soundio_output_device_create(out_device, SoundIoSampleFormatFloat, latency, NULL,
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write_callback, underrun_callback, &output_device);
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if ((err = soundio_input_device_start(input_device)))
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panic("unable to start input device: %s", soundio_error_string(err));
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if ((err = soundio_output_device_start(output_device)))
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panic("unable to start output device: %s", soundio_error_string(err));
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for (;;)
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soundio_wait_events(soundio);
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soundio_output_device_destroy(output_device);
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soundio_input_device_destroy(input_device);
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soundio_device_unref(in_device);
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soundio_device_unref(out_device);
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soundio_destroy(soundio);
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return 0;
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}
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