rename rtpcodecs into formatdecenc

pkg/formatdecenc/rtpsimpleaudio/decoder_test.go

@@ -0,0 +1,67 @@
+package rtpsimpleaudio
+
+import (
+	"testing"
+	"time"
+
+	"github.com/pion/rtp"
+	"github.com/stretchr/testify/require"
+)
+
+var cases = []struct {
+	name  string
+	frame []byte
+	pts   time.Duration
+	pkt   *rtp.Packet
+}{
+	{
+		"single",
+		[]byte{0x01, 0x02, 0x03, 0x04},
+		25 * time.Millisecond,
+		&rtp.Packet{
+			Header: rtp.Header{
+				Version:        2,
+				Marker:         false,
+				PayloadType:    0,
+				SequenceNumber: 17645,
+				Timestamp:      2289526557,
+				SSRC:           0x9dbb7812,
+			},
+			Payload: []byte{0x01, 0x02, 0x03, 0x04},
+		},
+	},
+}
+
+func TestDecode(t *testing.T) {
+	for _, ca := range cases {
+		t.Run(ca.name, func(t *testing.T) {
+			d := &Decoder{
+				SampleRate: 8000,
+			}
+			d.Init()
+
+			// send an initial packet downstream
+			// in order to compute the right timestamp,
+			// that is relative to the initial packet
+			pkt := rtp.Packet{
+				Header: rtp.Header{
+					Version:        2,
+					Marker:         false,
+					PayloadType:    0,
+					SequenceNumber: 17645,
+					Timestamp:      2289526357,
+					SSRC:           0x9dbb7812,
+				},
+				Payload: []byte{0x01, 0x02, 0x03, 0x04},
+			}
+			_, _, err := d.Decode(&pkt)
+			require.NoError(t, err)
+
+			frame, pts, err := d.Decode(ca.pkt)
+			require.NoError(t, err)
+			require.Equal(t, ca.pts, pts)
+
+			require.Equal(t, ca.frame, frame)
+		})
+	}
+}