Keep OpenAL jitter playback continuous

gumble/gumbleopenal/stream_regression_test.go

@@ -48,6 +48,18 @@ func TestStopSourceWaitsForWorker(t *testing.T) {
 	<-returned
 }
 
+func TestJitterPlaybackDelayAppliesOnlyAtStartup(t *testing.T) {
+	if jitterPlaybackReady(false, jitterMinPackets-1) {
+		t.Fatal("jitter playback started before initial buffer filled")
+	}
+	if !jitterPlaybackReady(false, jitterMinPackets) {
+		t.Fatal("jitter playback did not start after initial buffer filled")
+	}
+	if !jitterPlaybackReady(true, 1) {
+		t.Fatal("jitter playback paused while refilling after startup")
+	}
+}
+
 func TestRenderRejectsWorkAfterShutdown(t *testing.T) {
 	s := &Stream{renderClosed: true}
 	called := false