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https://github.com/Ryujinx/libsoundio.git
synced 2024-12-22 17:15:35 +00:00
sine example: remove panics
This commit is contained in:
Andrew Kelley
parent
65416669d3
commit
8c9c4f85c2
63
README.md
63
README.md
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@ -64,20 +64,10 @@ backend:
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#include <soundio/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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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 const float PI = 3.1415926535f;
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static float seconds_offset = 0.0f;
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static void write_callback(struct SoundIoOutStream *outstream,
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@ -93,8 +83,10 @@ static void write_callback(struct SoundIoOutStream *outstream,
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while (frames_left > 0) {
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int frame_count = frames_left;
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if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count)))
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panic("%s", soundio_strerror(err));
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if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count))) {
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fprintf(stderr, "%s\n", soundio_strerror(err));
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exit(1);
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}
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if (!frame_count)
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break;
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@ -110,8 +102,10 @@ static void write_callback(struct SoundIoOutStream *outstream,
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}
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seconds_offset += seconds_per_frame * frame_count;
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if ((err = soundio_outstream_end_write(outstream)))
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panic("%s", soundio_strerror(err));
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if ((err = soundio_outstream_end_write(outstream))) {
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fprintf(stderr, "%s\n", soundio_strerror(err));
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exit(1);
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}
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frames_left -= frame_count;
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}
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@ -120,21 +114,29 @@ static void write_callback(struct SoundIoOutStream *outstream,
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int main(int argc, char **argv) {
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int err;
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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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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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if ((err = soundio_connect(soundio)))
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panic("error connecting: %s", soundio_strerror(err));
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if ((err = soundio_connect(soundio))) {
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fprintf(stderr, "error connecting: %s", soundio_strerror(err));
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return 1;
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}
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soundio_flush_events(soundio);
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int default_out_device_index = soundio_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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if (default_out_device_index < 0) {
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fprintf(stderr, "no output device found");
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return 1;
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}
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struct SoundIoDevice *device = soundio_get_output_device(soundio, default_out_device_index);
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if (!device)
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panic("out of memory");
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if (!device) {
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fprintf(stderr, "out of memory");
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return 1;
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}
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fprintf(stderr, "Output device: %s\n", device->name);
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@ -142,14 +144,18 @@ int main(int argc, char **argv) {
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outstream->format = SoundIoFormatFloat32NE;
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outstream->write_callback = write_callback;
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if ((err = soundio_outstream_open(outstream)))
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panic("unable to open device: %s", soundio_strerror(err));
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if ((err = soundio_outstream_open(outstream))) {
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fprintf(stderr, "unable to open device: %s", soundio_strerror(err));
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return 1;
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}
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if (outstream->layout_error)
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fprintf(stderr, "unable to set channel layout: %s\n", soundio_strerror(outstream->layout_error));
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if ((err = soundio_outstream_start(outstream)))
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panic("unable to start device: %s", soundio_strerror(err));
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if ((err = soundio_outstream_start(outstream))) {
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fprintf(stderr, "unable to start device: %s", soundio_strerror(err));
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return 1;
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}
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for (;;)
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soundio_wait_events(soundio);
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@ -262,11 +268,6 @@ For each backend, do the following:
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## Roadmap
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0. implement WASAPI (Windows) backend, get examples working
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- move the bulk of the `outstream_open_wasapi` code to the thread and
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have them communicate back and forth. because the thread has to do
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weird thread-local com stuff, and all that com stuff really needs to be
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called from the same thread.
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0. Make sure PulseAudio can handle refresh devices crashing before
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block_until_have_devices
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0. Integrate into libgroove and test with Groove Basin
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@ -8,21 +8,11 @@
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#include <soundio/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 <stdint.h>
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#include <math.h>
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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 int usage(char *exe) {
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fprintf(stderr, "Usage: %s [options]\n"
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"Options:\n"
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@ -31,7 +21,7 @@ static int usage(char *exe) {
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" [--raw]\n"
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" [--name stream_name]\n"
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, exe);
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return EXIT_FAILURE;
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return 1;
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}
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static void write_sample_s16ne(char *ptr, double sample) {
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@ -71,8 +61,10 @@ static void write_callback(struct SoundIoOutStream *outstream, int frame_count_m
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for (;;) {
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int frame_count = frames_left;
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if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count)))
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panic("%s", soundio_strerror(err));
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if ((err = soundio_outstream_begin_write(outstream, &areas, &frame_count))) {
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fprintf(stderr, "%s\n", soundio_strerror(err));
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exit(1);
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}
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if (!frame_count)
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break;
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@ -93,7 +85,8 @@ static void write_callback(struct SoundIoOutStream *outstream, int frame_count_m
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if ((err = soundio_outstream_end_write(outstream))) {
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if (err == SoundIoErrorUnderflow)
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return;
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panic("%s", soundio_strerror(err));
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fprintf(stderr, "%s\n", soundio_strerror(err));
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exit(1);
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}
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frames_left -= frame_count;
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@ -137,7 +130,7 @@ int main(int argc, char **argv) {
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backend = SoundIoBackendWasapi;
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} else {
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fprintf(stderr, "Invalid backend: %s\n", argv[i]);
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return EXIT_FAILURE;
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return 1;
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}
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} else if (strcmp(arg, "--device") == 0) {
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device_id = argv[i];
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@ -153,15 +146,17 @@ int main(int argc, char **argv) {
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}
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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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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 = (backend == SoundIoBackendNone) ?
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soundio_connect(soundio) : soundio_connect_backend(soundio, backend);
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if (err) {
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fprintf(stderr, "Unable to connect to backend: %s\n", soundio_strerror(err));
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return EXIT_FAILURE;
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return 1;
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}
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soundio_flush_events(soundio);
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@ -182,12 +177,14 @@ int main(int argc, char **argv) {
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if (selected_device_index < 0) {
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fprintf(stderr, "Output device not found\n");
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return EXIT_SUCCESS;
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return 1;
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}
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struct SoundIoDevice *device = soundio_get_output_device(soundio, selected_device_index);
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if (!device)
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panic("out of memory");
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if (!device) {
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fprintf(stderr, "out of memory\n");
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return 1;
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}
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fprintf(stderr, "Output device: %s\n", device->name);
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@ -210,20 +207,22 @@ int main(int argc, char **argv) {
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write_sample = write_sample_s16ne;
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} else {
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fprintf(stderr, "No suitable device format available.\n");
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return EXIT_FAILURE;
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return 1;
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}
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if ((err = soundio_outstream_open(outstream))) {
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fprintf(stderr, "unable to open device: %s", soundio_strerror(err));
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return EXIT_FAILURE;
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return 1;
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}
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if (outstream->layout_error)
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fprintf(stderr, "unable to set channel layout: %s\n", soundio_strerror(outstream->layout_error));
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if ((err = soundio_outstream_start(outstream)))
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panic("unable to start device: %s", soundio_strerror(err));
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if ((err = soundio_outstream_start(outstream))) {
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fprintf(stderr, "unable to start device: %s\n", soundio_strerror(err));
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return 1;
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}
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for (;;)
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soundio_wait_events(soundio);
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@ -231,5 +230,5 @@ int main(int argc, char **argv) {
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soundio_outstream_destroy(outstream);
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soundio_device_unref(device);
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soundio_destroy(soundio);
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return EXIT_SUCCESS;
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return 0;
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}
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