first commit

datasource.go

@@ -0,0 +1,31 @@
+package main
+
+/*
+#cgo CFLAGS: -I/usr/include/pipewire-0.3 -I/usr/include/spa-0.2
+#cgo LDFLAGS: -lpipewire-0.3 -lm -lpthread
+#include "pw_audio.h"
+*/
+import "C"
+
+type DataSource struct {
+	left  float64
+	right float64
+}
+
+func NewDataSource() *DataSource {
+	return &DataSource{}
+}
+
+func (ds *DataSource) Start() {
+	C.pw_audio_start()
+}
+
+func (ds *DataSource) Stop() {
+	C.pw_audio_stop()
+}
+
+func (ds *DataSource) GetLevels() (float64, float64) {
+	var l, r C.float
+	C.pw_audio_get_levels(&l, &r)
+	return float64(l), float64(r)
+}