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format pipewire example

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This commit is contained in:
Emile Clark-Boman 2025-09-03 14:52:45 +10:00
parent eabd640e2d
commit 1fa7625679
1 changed files with 96 additions and 102 deletions
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42
lib/main.c
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@ -4,12 +4,14 @@
#include <pipewire/pipewire.h>
#define M_PI_M2 ( M_PI + M_PI )
#define M_PI_M2 (M_PI + M_PI)
#define DEFAULT_RATE 44100
#define DEFAULT_CHANNELS 2
#define DEFAULT_VOLUME 0.7
#define PWSTREAM_NAME "Dorne"
struct data {
struct pw_main_loop *loop;
struct pw_stream *stream;
@ -17,8 +19,7 @@ struct data {
};
/* [on_process] */
static void on_process(void *userdata)
{
static void on_process(void *userdata) {
struct data *data = userdata;
struct pw_buffer *b;
struct spa_buffer *buf;
@ -68,9 +69,10 @@ static const struct pw_stream_events stream_events = {
.process = on_process,
};
int main(int argc, char *argv[])
{
struct data data = { 0, };
int main(int argc, char *argv[]) {
struct data data = {
0,
};
const struct spa_pod *params[1];
uint8_t buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
@ -80,27 +82,19 @@ int main(int argc, char *argv[])
data.loop = pw_main_loop_new(NULL);
data.stream = pw_stream_new_simple(
pw_main_loop_get_loop(data.loop),
"audio-src",
pw_properties_new(
PW_KEY_MEDIA_TYPE, "Audio",
PW_KEY_MEDIA_CATEGORY, "Playback",
PW_KEY_MEDIA_ROLE, "Music",
NULL),
&stream_events,
&data);
pw_main_loop_get_loop(data.loop), PWSTREAM_NAME,
pw_properties_new(PW_KEY_MEDIA_TYPE, "Audio", PW_KEY_MEDIA_CATEGORY,
"Playback", PW_KEY_MEDIA_ROLE, "Music", NULL),
&stream_events, &data);
params[0] = spa_format_audio_raw_build(&b, SPA_PARAM_EnumFormat,
&SPA_AUDIO_INFO_RAW_INIT(
.format = SPA_AUDIO_FORMAT_S16,
params[0] = spa_format_audio_raw_build(
&b, SPA_PARAM_EnumFormat,
&SPA_AUDIO_INFO_RAW_INIT(.format = SPA_AUDIO_FORMAT_S16,
.channels = DEFAULT_CHANNELS,
.rate = DEFAULT_RATE ));
.rate = DEFAULT_RATE));
pw_stream_connect(data.stream,
PW_DIRECTION_OUTPUT,
PW_ID_ANY,
PW_STREAM_FLAG_AUTOCONNECT |
PW_STREAM_FLAG_MAP_BUFFERS |
pw_stream_connect(data.stream, PW_DIRECTION_OUTPUT, PW_ID_ANY,
PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_MAP_BUFFERS |
PW_STREAM_FLAG_RT_PROCESS,
params, 1);