diff --git a/pkg/formats/av1.go b/pkg/formats/av1.go
index b3697c87..463c0a5c 100644
--- a/pkg/formats/av1.go
+++ b/pkg/formats/av1.go
@@ -55,9 +55,16 @@ func (f *AV1) unmarshal(payloadType uint8, _ string, _ string, _ string, fmtp ma
 	return nil
 }
 
+// Codec implements Format.
+func (f *AV1) Codec() string {
+	return "AV1"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *AV1) String() string {
-	return "AV1"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/format.go b/pkg/formats/format.go
index de079ec5..d85af70b 100644
--- a/pkg/formats/format.go
+++ b/pkg/formats/format.go
@@ -17,11 +17,14 @@ func getCodecAndClock(rtpMap string) (string, string) {
 }
 
 // Format is a RTP format of a media.
-// It defines a codec and a payload type used to transmit the media.
+// It defines a codec and a payload type to transmit the media.
 type Format interface {
 	unmarshal(payloadType uint8, clock string, codec string, rtpmap string, fmtp map[string]string) error
 
-	// String returns a description of the format.
+	// Codec returns the codec name.
+	Codec() string
+
+	// Deprecated: replaced by Codec().
 	String() string
 
 	// ClockRate returns the clock rate.
diff --git a/pkg/formats/g711.go b/pkg/formats/g711.go
index b1ef815b..73565f5f 100644
--- a/pkg/formats/g711.go
+++ b/pkg/formats/g711.go
@@ -18,9 +18,16 @@ func (f *G711) unmarshal(payloadType uint8, _ string, _ string, _ string, _ map[
 	return nil
 }
 
+// Codec implements Format.
+func (f *G711) Codec() string {
+	return "G711"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *G711) String() string {
-	return "G711"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/g711_test.go b/pkg/formats/g711_test.go
index d7d72d91..cb89e9d4 100644
--- a/pkg/formats/g711_test.go
+++ b/pkg/formats/g711_test.go
@@ -9,14 +9,14 @@ import (
 
 func TestG711Attributes(t *testing.T) {
 	format := &G711{}
-	require.Equal(t, "G711", format.String())
+	require.Equal(t, "G711", format.Codec())
 	require.Equal(t, 8000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 
 	format = &G711{
 		MULaw: true,
 	}
-	require.Equal(t, "G711", format.String())
+	require.Equal(t, "G711", format.Codec())
 	require.Equal(t, 8000, format.ClockRate())
 }
 
diff --git a/pkg/formats/g722.go b/pkg/formats/g722.go
index 75fcb000..718c4999 100644
--- a/pkg/formats/g722.go
+++ b/pkg/formats/g722.go
@@ -14,9 +14,16 @@ func (f *G722) unmarshal(_ uint8, _ string, _ string, _ string, _ map[string]str
 	return nil
 }
 
+// Codec implements Format.
+func (f *G722) Codec() string {
+	return "G722"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *G722) String() string {
-	return "G722"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/g722_test.go b/pkg/formats/g722_test.go
index 8e81729b..d4500007 100644
--- a/pkg/formats/g722_test.go
+++ b/pkg/formats/g722_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestG722Attributes(t *testing.T) {
 	format := &G722{}
-	require.Equal(t, "G722", format.String())
+	require.Equal(t, "G722", format.Codec())
 	require.Equal(t, 8000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/generic.go b/pkg/formats/generic.go
index 820832c7..2f8bb48a 100644
--- a/pkg/formats/generic.go
+++ b/pkg/formats/generic.go
@@ -75,11 +75,18 @@ func (f *Generic) unmarshal(payloadType uint8, _ string, _ string, rtpmap string
 	return f.Init()
 }
 
-// String returns a description of the format.
-func (f *Generic) String() string {
+// Codec implements Format.
+func (f *Generic) Codec() string {
 	return "Generic"
 }
 
+// String implements Format.
+//
+// Deprecated: replaced by Codec().
+func (f *Generic) String() string {
+	return f.Codec()
+}
+
 // ClockRate implements Format.
 func (f *Generic) ClockRate() int {
 	return f.ClockRat
diff --git a/pkg/formats/generic_test.go b/pkg/formats/generic_test.go
index ba316f14..1c727637 100644
--- a/pkg/formats/generic_test.go
+++ b/pkg/formats/generic_test.go
@@ -21,7 +21,7 @@ func TestGenericAttributes(t *testing.T) {
 	err := format.Init()
 	require.NoError(t, err)
 
-	require.Equal(t, "Generic", format.String())
+	require.Equal(t, "Generic", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/h264.go b/pkg/formats/h264.go
index 68ca9324..be697a85 100644
--- a/pkg/formats/h264.go
+++ b/pkg/formats/h264.go
@@ -116,9 +116,16 @@ func (f *H264) unmarshal(payloadType uint8, _ string, _ string, _ string, fmtp m
 	return nil
 }
 
+// Codec implements Format.
+func (f *H264) Codec() string {
+	return "H264"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *H264) String() string {
-	return "H264"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/h264_test.go b/pkg/formats/h264_test.go
index 5f5c8335..c9a9ced8 100644
--- a/pkg/formats/h264_test.go
+++ b/pkg/formats/h264_test.go
@@ -14,7 +14,7 @@ func TestH264Attributes(t *testing.T) {
 		PPS:               []byte{0x03, 0x04},
 		PacketizationMode: 1,
 	}
-	require.Equal(t, "H264", format.String())
+	require.Equal(t, "H264", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 
 	sps, pps := format.SafeParams()
diff --git a/pkg/formats/h265.go b/pkg/formats/h265.go
index 667b603c..a8fae8fd 100644
--- a/pkg/formats/h265.go
+++ b/pkg/formats/h265.go
@@ -61,9 +61,16 @@ func (f *H265) unmarshal(payloadType uint8, _ string, _ string, _ string, fmtp m
 	return nil
 }
 
+// Codec implements Format.
+func (f *H265) Codec() string {
+	return "H265"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *H265) String() string {
-	return "H265"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/h265_test.go b/pkg/formats/h265_test.go
index 9ef1d9c6..ea7ced42 100644
--- a/pkg/formats/h265_test.go
+++ b/pkg/formats/h265_test.go
@@ -14,7 +14,7 @@ func TestH265Attributes(t *testing.T) {
 		SPS:        []byte{0x03, 0x04},
 		PPS:        []byte{0x05, 0x06},
 	}
-	require.Equal(t, "H265", format.String())
+	require.Equal(t, "H265", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 
diff --git a/pkg/formats/lpcm.go b/pkg/formats/lpcm.go
index aaab3ab7..2b2f9a6e 100644
--- a/pkg/formats/lpcm.go
+++ b/pkg/formats/lpcm.go
@@ -53,9 +53,16 @@ func (f *LPCM) unmarshal(payloadType uint8, clock string, codec string, _ string
 	return nil
 }
 
+// Codec implements Format.
+func (f *LPCM) Codec() string {
+	return "LPCM"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *LPCM) String() string {
-	return "LPCM"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/lpcm_test.go b/pkg/formats/lpcm_test.go
index b32e1f0d..0a70be98 100644
--- a/pkg/formats/lpcm_test.go
+++ b/pkg/formats/lpcm_test.go
@@ -14,7 +14,7 @@ func TestLPCMAttributes(t *testing.T) {
 		SampleRate:   44100,
 		ChannelCount: 2,
 	}
-	require.Equal(t, "LPCM", format.String())
+	require.Equal(t, "LPCM", format.Codec())
 	require.Equal(t, 44100, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mjpeg.go b/pkg/formats/mjpeg.go
index 1f7a374d..c6468bb4 100644
--- a/pkg/formats/mjpeg.go
+++ b/pkg/formats/mjpeg.go
@@ -14,9 +14,16 @@ func (f *MJPEG) unmarshal(_ uint8, _ string, _ string, _ string, _ map[string]st
 	return nil
 }
 
+// Codec implements Format.
+func (f *MJPEG) Codec() string {
+	return "M-JPEG"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MJPEG) String() string {
-	return "M-JPEG"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mjpeg_test.go b/pkg/formats/mjpeg_test.go
index a78a06a7..5f44b9a6 100644
--- a/pkg/formats/mjpeg_test.go
+++ b/pkg/formats/mjpeg_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestMJPEGAttributes(t *testing.T) {
 	format := &MJPEG{}
-	require.Equal(t, "M-JPEG", format.String())
+	require.Equal(t, "M-JPEG", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg2_audio.go b/pkg/formats/mpeg2_audio.go
index 3a8e7c87..f5a9da40 100644
--- a/pkg/formats/mpeg2_audio.go
+++ b/pkg/formats/mpeg2_audio.go
@@ -14,9 +14,16 @@ func (f *MPEG2Audio) unmarshal(_ uint8, _ string, _ string, _ string, _ map[stri
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEG2Audio) Codec() string {
+	return "MPEG-1/2 Audio"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEG2Audio) String() string {
-	return "MPEG2-audio"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg2_audio_test.go b/pkg/formats/mpeg2_audio_test.go
index ed45e862..a65710b6 100644
--- a/pkg/formats/mpeg2_audio_test.go
+++ b/pkg/formats/mpeg2_audio_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestMPEG2AudioAttributes(t *testing.T) {
 	format := &MPEG2Audio{}
-	require.Equal(t, "MPEG2-audio", format.String())
+	require.Equal(t, "MPEG-1/2 Audio", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg2_video.go b/pkg/formats/mpeg2_video.go
index 0851972c..a589897b 100644
--- a/pkg/formats/mpeg2_video.go
+++ b/pkg/formats/mpeg2_video.go
@@ -1,4 +1,4 @@
-package formats
+package formats //nolint:dupl
 
 import (
 	"github.com/pion/rtp"
@@ -12,9 +12,16 @@ func (f *MPEG2Video) unmarshal(_ uint8, _ string, _ string, _ string, _ map[stri
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEG2Video) Codec() string {
+	return "MPEG-1/2 Video"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEG2Video) String() string {
-	return "MPEG2-video"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg2_video_test.go b/pkg/formats/mpeg2_video_test.go
index d9ef1598..2db8a752 100644
--- a/pkg/formats/mpeg2_video_test.go
+++ b/pkg/formats/mpeg2_video_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestMPEG2VideoAttributes(t *testing.T) {
 	format := &MPEG2Video{}
-	require.Equal(t, "MPEG2-video", format.String())
+	require.Equal(t, "MPEG-1/2 Video", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg4_audio_generic.go b/pkg/formats/mpeg4_audio_generic.go
index 41c0e48d..95e4f570 100644
--- a/pkg/formats/mpeg4_audio_generic.go
+++ b/pkg/formats/mpeg4_audio_generic.go
@@ -98,10 +98,16 @@ func (f *MPEG4AudioGeneric) unmarshal(
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEG4AudioGeneric) Codec() string {
+	return "MPEG-4 Audio"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEG4AudioGeneric) String() string {
-	// currently, String() returns the codec name, hence hide the format name.
-	return "MPEG4-audio"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg4_audio_generic_test.go b/pkg/formats/mpeg4_audio_generic_test.go
index f3685668..08de53ad 100644
--- a/pkg/formats/mpeg4_audio_generic_test.go
+++ b/pkg/formats/mpeg4_audio_generic_test.go
@@ -21,7 +21,7 @@ func TestMPEG4AudioGenericAttributes(t *testing.T) {
 		IndexLength:      3,
 		IndexDeltaLength: 3,
 	}
-	require.Equal(t, "MPEG4-audio", format.String())
+	require.Equal(t, "MPEG-4 Audio", format.Codec())
 	require.Equal(t, 48000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg4_audio_latm.go b/pkg/formats/mpeg4_audio_latm.go
index 742f11a8..aaf04a14 100644
--- a/pkg/formats/mpeg4_audio_latm.go
+++ b/pkg/formats/mpeg4_audio_latm.go
@@ -85,10 +85,16 @@ func (f *MPEG4AudioLATM) unmarshal(
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEG4AudioLATM) Codec() string {
+	return "MPEG-4 Audio"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEG4AudioLATM) String() string {
-	// currently, String() returns the codec name, hence hide the format name.
-	return "MPEG4-audio"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg4_audio_latm_test.go b/pkg/formats/mpeg4_audio_latm_test.go
index 879cda95..40772a52 100644
--- a/pkg/formats/mpeg4_audio_latm_test.go
+++ b/pkg/formats/mpeg4_audio_latm_test.go
@@ -25,7 +25,7 @@ func TestMPEG4AudioLATMAttributes(t *testing.T) {
 			}},
 		},
 	}
-	require.Equal(t, "MPEG4-audio", format.String())
+	require.Equal(t, "MPEG-4 Audio", format.Codec())
 	require.Equal(t, 44100, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg4_video_es.go b/pkg/formats/mpeg4_video_es.go
index ed1faeca..fb69931b 100644
--- a/pkg/formats/mpeg4_video_es.go
+++ b/pkg/formats/mpeg4_video_es.go
@@ -51,9 +51,16 @@ func (f *MPEG4VideoES) unmarshal(
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEG4VideoES) Codec() string {
+	return "MPEG-4 Video"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEG4VideoES) String() string {
-	return "MPEG4-video-es"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg4_video_es_test.go b/pkg/formats/mpeg4_video_es_test.go
index c2cdce2b..8fd0b7ff 100644
--- a/pkg/formats/mpeg4_video_es_test.go
+++ b/pkg/formats/mpeg4_video_es_test.go
@@ -13,7 +13,7 @@ func TestMPEG4VideoESAttributes(t *testing.T) {
 		ProfileLevelID: 1,
 		Config:         []byte{0x01, 0x02, 0x03},
 	}
-	require.Equal(t, "MPEG4-video-es", format.String())
+	require.Equal(t, "MPEG-4 Video", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpegts.go b/pkg/formats/mpegts.go
index f65d81a7..213df58d 100644
--- a/pkg/formats/mpegts.go
+++ b/pkg/formats/mpegts.go
@@ -1,4 +1,4 @@
-package formats
+package formats //nolint:dupl
 
 import (
 	"github.com/pion/rtp"
@@ -12,9 +12,16 @@ func (f *MPEGTS) unmarshal(_ uint8, _ string, _ string, _ string, _ map[string]s
 	return nil
 }
 
+// Codec implements Format.
+func (f *MPEGTS) Codec() string {
+	return "MPEG-TS"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *MPEGTS) String() string {
-	return "MPEG-TS"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpegts_test.go b/pkg/formats/mpegts_test.go
index cc39329a..e257cb7f 100644
--- a/pkg/formats/mpegts_test.go
+++ b/pkg/formats/mpegts_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestMPEGTSAttributes(t *testing.T) {
 	format := &MPEGTS{}
-	require.Equal(t, "MPEG-TS", format.String())
+	require.Equal(t, "MPEG-TS", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/opus.go b/pkg/formats/opus.go
index 601b2ae0..af4608ce 100644
--- a/pkg/formats/opus.go
+++ b/pkg/formats/opus.go
@@ -44,9 +44,16 @@ func (f *Opus) unmarshal(payloadType uint8, clock string, _ string, _ string, fm
 	return nil
 }
 
+// Codec implements Format.
+func (f *Opus) Codec() string {
+	return "Opus"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *Opus) String() string {
-	return "Opus"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/opus_test.go b/pkg/formats/opus_test.go
index 4dae72ff..87e52791 100644
--- a/pkg/formats/opus_test.go
+++ b/pkg/formats/opus_test.go
@@ -12,7 +12,7 @@ func TestOpusAttributes(t *testing.T) {
 		PayloadTyp: 96,
 		IsStereo:   true,
 	}
-	require.Equal(t, "Opus", format.String())
+	require.Equal(t, "Opus", format.Codec())
 	require.Equal(t, 48000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/vorbis.go b/pkg/formats/vorbis.go
index 4ce35b52..cd69ce5b 100644
--- a/pkg/formats/vorbis.go
+++ b/pkg/formats/vorbis.go
@@ -56,9 +56,16 @@ func (f *Vorbis) unmarshal(payloadType uint8, clock string, _ string, _ string,
 	return nil
 }
 
+// Codec implements Format.
+func (f *Vorbis) Codec() string {
+	return "Vorbis"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *Vorbis) String() string {
-	return "Vorbis"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/vorbis_test.go b/pkg/formats/vorbis_test.go
index d2f18a2a..3a18cd98 100644
--- a/pkg/formats/vorbis_test.go
+++ b/pkg/formats/vorbis_test.go
@@ -14,7 +14,7 @@ func TestVorbisAttributes(t *testing.T) {
 		ChannelCount:  2,
 		Configuration: []byte{0x01, 0x02, 0x03, 0x04},
 	}
-	require.Equal(t, "Vorbis", format.String())
+	require.Equal(t, "Vorbis", format.Codec())
 	require.Equal(t, 48000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/vp8.go b/pkg/formats/vp8.go
index 7f05d84f..a2073523 100644
--- a/pkg/formats/vp8.go
+++ b/pkg/formats/vp8.go
@@ -45,9 +45,16 @@ func (f *VP8) unmarshal(payloadType uint8, _ string, _ string, _ string, fmtp ma
 	return nil
 }
 
+// Codec implements Format.
+func (f *VP8) Codec() string {
+	return "VP8"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *VP8) String() string {
-	return "VP8"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/vp8_test.go b/pkg/formats/vp8_test.go
index 0ad8d45a..e7e4e993 100644
--- a/pkg/formats/vp8_test.go
+++ b/pkg/formats/vp8_test.go
@@ -11,7 +11,7 @@ func TestVP8ttributes(t *testing.T) {
 	format := &VP8{
 		PayloadTyp: 99,
 	}
-	require.Equal(t, "VP8", format.String())
+	require.Equal(t, "VP8", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/vp9.go b/pkg/formats/vp9.go
index 832fd9cc..508117b5 100644
--- a/pkg/formats/vp9.go
+++ b/pkg/formats/vp9.go
@@ -55,9 +55,16 @@ func (f *VP9) unmarshal(payloadType uint8, _ string, _ string, _ string, fmtp ma
 	return nil
 }
 
+// Codec implements Format.
+func (f *VP9) Codec() string {
+	return "VP9"
+}
+
 // String implements Format.
+//
+// Deprecated: replaced by Codec().
 func (f *VP9) String() string {
-	return "VP9"
+	return f.Codec()
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/vp9_test.go b/pkg/formats/vp9_test.go
index 480a9e3a..445ade00 100644
--- a/pkg/formats/vp9_test.go
+++ b/pkg/formats/vp9_test.go
@@ -11,7 +11,7 @@ func TestVP9Attributes(t *testing.T) {
 	format := &VP9{
 		PayloadTyp: 100,
 	}
-	require.Equal(t, "VP9", format.String())
+	require.Equal(t, "VP9", format.Codec())
 	require.Equal(t, 90000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }