From: Dejian Xu <xudejian2008@gmail.com>
Date: Mon, 29 Aug 2016 12:53:18 +0000 (+0800)
Subject: Setter and getter API for DTX on encoders
X-Git-Tag: v2.0.0~67
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=c598ce91376163e55698bcc1f5b4f832f0c6f661;p=go-opus.git

Setter and getter API for DTX on encoders

Go-style DTX setter and getter api on the encoder.

PR hraban/opus#4
---

diff --git a/encoder.go b/encoder.go
index ce27a06..6b79c26 100644
--- a/encoder.go
+++ b/encoder.go
@@ -12,6 +12,16 @@ import (
 /*
 #cgo pkg-config: opus
 #include <opus/opus.h>
+
+int bridge_set_dtx(OpusEncoder *st, int use_dtx) {
+	return opus_encoder_ctl(st, OPUS_SET_DTX(use_dtx));
+}
+
+int bridge_get_dtx(OpusEncoder *st) {
+	int dtx = 0;
+	opus_encoder_ctl(st, OPUS_GET_DTX(&dtx));
+	return dtx;
+}
 */
 import "C"
 
@@ -107,3 +117,17 @@ func (enc *Encoder) EncodeFloat32(pcm []float32, data []byte) (int, error) {
 	}
 	return n, nil
 }
+
+// Configures the encoder's use of discontinuous transmission (DTX).
+func (enc *Encoder) UseDTX(use bool) {
+	dtx := 0
+	if use {
+		dtx = 1
+	}
+	C.bridge_set_dtx(enc.p, C.int(dtx))
+}
+
+func (enc *Encoder) GetDTX() bool {
+	dtx := C.bridge_get_dtx(enc.p)
+	return dtx != 0
+}
diff --git a/encoder_test.go b/encoder_test.go
new file mode 100644
index 0000000..015a714
--- /dev/null
+++ b/encoder_test.go
@@ -0,0 +1,22 @@
+// Copyright © 2015, 2016 Hraban Luyat <hraban@0brg.net>
+//
+// License for use of this code is detailed in the LICENSE file
+
+package opus
+
+import "testing"
+
+func TestUseDTX(t *testing.T) {
+	enc, err := NewEncoder(8000, 1, APPLICATION_VOIP)
+	if err != nil || enc == nil {
+		t.Errorf("Error creating new encoder: %v", err)
+	}
+	vals := []bool{true, false}
+	for _, dtx := range vals {
+		enc.UseDTX(dtx)
+		gotv := enc.GetDTX()
+		if gotv != dtx {
+			t.Errorf("Error set dtx: expect dtx=%v, got dtx=%v", dtx, gotv)
+		}
+	}
+}