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format pipewire example

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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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38
lib/main.c
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@ -10,6 +10,8 @@
#define DEFAULT_CHANNELS 2 #define DEFAULT_CHANNELS 2
#define DEFAULT_VOLUME 0.7 #define DEFAULT_VOLUME 0.7
#define PWSTREAM_NAME "Dorne"
struct data { struct data {
struct pw_main_loop *loop; struct pw_main_loop *loop;
struct pw_stream *stream; struct pw_stream *stream;
@ -17,8 +19,7 @@ struct data {
}; };
/* [on_process] */ /* [on_process] */
static void on_process(void *userdata) static void on_process(void *userdata) {
{
struct data *data = userdata; struct data *data = userdata;
struct pw_buffer *b; struct pw_buffer *b;
struct spa_buffer *buf; struct spa_buffer *buf;
@ -68,9 +69,10 @@ static const struct pw_stream_events stream_events = {
.process = on_process, .process = on_process,
}; };
int main(int argc, char *argv[]) int main(int argc, char *argv[]) {
{ struct data data = {
struct data data = { 0, }; 0,
};
const struct spa_pod *params[1]; const struct spa_pod *params[1];
uint8_t buffer[1024]; uint8_t buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer)); 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.loop = pw_main_loop_new(NULL);
data.stream = pw_stream_new_simple( data.stream = pw_stream_new_simple(
pw_main_loop_get_loop(data.loop), pw_main_loop_get_loop(data.loop), PWSTREAM_NAME,
"audio-src", pw_properties_new(PW_KEY_MEDIA_TYPE, "Audio", PW_KEY_MEDIA_CATEGORY,
pw_properties_new( "Playback", PW_KEY_MEDIA_ROLE, "Music", NULL),
PW_KEY_MEDIA_TYPE, "Audio", &stream_events, &data);
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, params[0] = spa_format_audio_raw_build(
&SPA_AUDIO_INFO_RAW_INIT( &b, SPA_PARAM_EnumFormat,
.format = SPA_AUDIO_FORMAT_S16, &SPA_AUDIO_INFO_RAW_INIT(.format = SPA_AUDIO_FORMAT_S16,
.channels = DEFAULT_CHANNELS, .channels = DEFAULT_CHANNELS,
.rate = DEFAULT_RATE)); .rate = DEFAULT_RATE));
pw_stream_connect(data.stream, pw_stream_connect(data.stream, PW_DIRECTION_OUTPUT, PW_ID_ANY,
PW_DIRECTION_OUTPUT, PW_STREAM_FLAG_AUTOCONNECT | PW_STREAM_FLAG_MAP_BUFFERS |
PW_ID_ANY,
PW_STREAM_FLAG_AUTOCONNECT |
PW_STREAM_FLAG_MAP_BUFFERS |
PW_STREAM_FLAG_RT_PROCESS, PW_STREAM_FLAG_RT_PROCESS,
params, 1); params, 1);