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-rw-r--r--soundbox/pipewire.go12
1 files changed, 12 insertions, 0 deletions
diff --git a/soundbox/pipewire.go b/soundbox/pipewire.go
index bb672f8..0443766 100644
--- a/soundbox/pipewire.go
+++ b/soundbox/pipewire.go
@@ -8,10 +8,12 @@ import "C"
import (
"context"
+ "fmt"
"io"
"log"
"net"
"os/exec"
+ "sync"
"unsafe"
)
@@ -21,6 +23,10 @@ type pwCapture struct {
var pwAudio chan []byte
+// lock makes sure there is always just one PipeWire capture device since
+// multiple are not yet implemented.
+var lock sync.Mutex
+
func newPWCapture(ctx context.Context) pwCapture {
pwc := pwCapture{}
@@ -74,6 +80,12 @@ func s16leDropSilence(input []byte) []byte {
}
func StreamPipewireContext(ctx context.Context, targets []net.HardwareAddr) error {
+ success := lock.TryLock()
+ if !success {
+ return fmt.Errorf("Could not acquire lock")
+ }
+ defer lock.Unlock()
+
cmd := exec.CommandContext(
ctx,
"ffmpeg",