add MP4A-LATM format (#237)

pkg/formats/mpeg4_audio_latm_test.go

@@ -0,0 +1,42 @@
+package formats
+
+import (
+	"testing"
+
+	"github.com/pion/rtp"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMPEG4AudioLATMAttributes(t *testing.T) {
+	format := &MPEG4AudioLATM{
+		PayloadTyp:     96,
+		SampleRate:     48000,
+		Channels:       2,
+		Object:         2,
+		ProfileLevelID: 1,
+		Config:         []byte{0x01, 0x02, 0x03},
+	}
+	require.Equal(t, "MPEG4-audio-latm", format.String())
+	require.Equal(t, 48000, format.ClockRate())
+	require.Equal(t, uint8(96), format.PayloadType())
+	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
+}
+
+func TestMPEG4AudioLATMMediaDescription(t *testing.T) {
+	format := &MPEG4AudioLATM{
+		PayloadTyp:     96,
+		SampleRate:     48000,
+		Channels:       2,
+		Object:         2,
+		ProfileLevelID: 1,
+		Config:         []byte{0x01, 0x02, 0x03},
+	}
+
+	rtpmap, fmtp := format.Marshal()
+	require.Equal(t, "MP4A-LATM/48000/2", rtpmap)
+	require.Equal(t, map[string]string{
+		"profile-level-id": "1",
+		"object":           "2",
+		"config":           "010203",
+	}, fmtp)
+}