diff --git a/go.mod b/go.mod
index 39f089a5..da39edb5 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/alecthomas/kong v1.13.0
 	github.com/asticode/go-astits v1.14.0
 	github.com/bluenviron/gohlslib/v2 v2.2.4
-	github.com/bluenviron/gortmplib v0.1.2
+	github.com/bluenviron/gortmplib v0.2.0
 	github.com/bluenviron/gortsplib/v5 v5.2.2
 	github.com/bluenviron/mediacommon/v2 v2.6.0
 	github.com/datarhei/gosrt v0.9.0
diff --git a/go.sum b/go.sum
index 62a3768e..50121fea 100644
--- a/go.sum
+++ b/go.sum
@@ -37,8 +37,8 @@ github.com/benburkert/openpgp v0.0.0-20160410205803-c2471f86866c h1:8XZeJrs4+ZYh
 github.com/benburkert/openpgp v0.0.0-20160410205803-c2471f86866c/go.mod h1:x1vxHcL/9AVzuk5HOloOEPrtJY0MaalYr78afXZ+pWI=
 github.com/bluenviron/gohlslib/v2 v2.2.4 h1:5F/Ud2VuJrrLYCDV0Ham947UIIrd801/GyoCsPYMqiw=
 github.com/bluenviron/gohlslib/v2 v2.2.4/go.mod h1:5J8Ry4xraLs6W0B2gVS0IqhCzcq+CDDJIisfkpoHyxM=
-github.com/bluenviron/gortmplib v0.1.2 h1:bJ+5pUxKnHjEoKPbNs7lDLyYy5R9Z1lISJ1n54DsjWE=
-github.com/bluenviron/gortmplib v0.1.2/go.mod h1:oVOWgfs7wsZNoKYLttyqLar7a71ZTohO1JOVXkNxtHg=
+github.com/bluenviron/gortmplib v0.2.0 h1:j15eeHrgVh6Avg9oAx+r4w0HugTqrIqLBsYnhs3D1dE=
+github.com/bluenviron/gortmplib v0.2.0/go.mod h1:yzobxBF8zusF2nKbEOF69zIIL429j0kaCWc/euNdvO4=
 github.com/bluenviron/gortsplib/v5 v5.2.2 h1:5q2viB8PGxWOSXNhVvj8buyr1wighLbHqRZ0U7MLM3o=
 github.com/bluenviron/gortsplib/v5 v5.2.2/go.mod h1:xkVBOAnR4fzaerPN650CBb7N+zUUsj7PI2HiY1TP7Co=
 github.com/bluenviron/mediacommon/v2 v2.6.0 h1:wZAPXwv7V78Cx2x7cToYIHOLToHl6APcvHbdQT+gOkg=
diff --git a/internal/core/api_test.go b/internal/core/api_test.go
index b3d6b4ea..27b65dc9 100644
--- a/internal/core/api_test.go
+++ b/internal/core/api_test.go
@@ -15,9 +15,9 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	rtmpcodecs "github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortsplib/v5"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
-	"github.com/bluenviron/gortsplib/v5/pkg/format"
 	"github.com/bluenviron/mediacommon/v2/pkg/formats/mpegts"
 	tscodecs "github.com/bluenviron/mediacommon/v2/pkg/formats/mpegts/codecs"
 	srt "github.com/datarhei/gosrt"
@@ -441,14 +441,21 @@ func TestAPIProtocolListGet(t *testing.T) {
 				require.NoError(t, err)
 				defer conn.Close()
 
+				track := &gortmplib.Track{
+					Codec: &rtmpcodecs.H264{
+						SPS: test.FormatH264.SPS,
+						PPS: test.FormatH264.PPS,
+					},
+				}
+
 				w := &gortmplib.Writer{
 					Conn:   conn,
-					Tracks: []format.Format{test.FormatH264},
+					Tracks: []*gortmplib.Track{track},
 				}
 				err = w.Initialize()
 				require.NoError(t, err)
 
-				err = w.WriteH264(test.FormatH264, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
+				err = w.WriteH264(track, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
 				require.NoError(t, err)
 
 				time.Sleep(500 * time.Millisecond)
@@ -1038,14 +1045,21 @@ func TestAPIProtocolKick(t *testing.T) {
 				require.NoError(t, err)
 				defer conn.Close()
 
+				track := &gortmplib.Track{
+					Codec: &rtmpcodecs.H264{
+						SPS: test.FormatH264.SPS,
+						PPS: test.FormatH264.PPS,
+					},
+				}
+
 				w := &gortmplib.Writer{
 					Conn:   conn,
-					Tracks: []format.Format{test.FormatH264},
+					Tracks: []*gortmplib.Track{track},
 				}
 				err = w.Initialize()
 				require.NoError(t, err)
 
-				err = w.WriteH264(test.FormatH264, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
+				err = w.WriteH264(track, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
 				require.NoError(t, err)
 
 			case "webrtc":
diff --git a/internal/core/metrics_test.go b/internal/core/metrics_test.go
index 35754603..1391dfea 100644
--- a/internal/core/metrics_test.go
+++ b/internal/core/metrics_test.go
@@ -13,9 +13,9 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	rtmpcodecs "github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortsplib/v5"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
-	"github.com/bluenviron/gortsplib/v5/pkg/format"
 	"github.com/bluenviron/mediacommon/v2/pkg/formats/mpegts"
 	tscodecs "github.com/bluenviron/mediacommon/v2/pkg/formats/mpegts/codecs"
 	srt "github.com/datarhei/gosrt"
@@ -218,14 +218,21 @@ webrtc_sessions_rtcp_packets_sent 0
 			require.NoError(t, err2)
 			defer conn.Close()
 
+			track := &gortmplib.Track{
+				Codec: &rtmpcodecs.H264{
+					SPS: test.FormatH264.SPS,
+					PPS: test.FormatH264.PPS,
+				},
+			}
+
 			w := &gortmplib.Writer{
 				Conn:   conn,
-				Tracks: []format.Format{test.FormatH264},
+				Tracks: []*gortmplib.Track{track},
 			}
 			err2 = w.Initialize()
 			require.NoError(t, err2)
 
-			err2 = w.WriteH264(test.FormatH264, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
+			err2 = w.WriteH264(track, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
 			require.NoError(t, err2)
 
 			<-terminate
@@ -246,14 +253,21 @@ webrtc_sessions_rtcp_packets_sent 0
 			require.NoError(t, err2)
 			defer conn.Close()
 
+			track := &gortmplib.Track{
+				Codec: &rtmpcodecs.H264{
+					SPS: test.FormatH264.SPS,
+					PPS: test.FormatH264.PPS,
+				},
+			}
+
 			w := &gortmplib.Writer{
 				Conn:   conn,
-				Tracks: []format.Format{test.FormatH264},
+				Tracks: []*gortmplib.Track{track},
 			}
 			err2 = w.Initialize()
 			require.NoError(t, err2)
 
-			err2 = w.WriteH264(test.FormatH264, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
+			err2 = w.WriteH264(track, 2*time.Second, 2*time.Second, [][]byte{{5, 2, 3, 4}})
 			require.NoError(t, err2)
 
 			<-terminate
diff --git a/internal/protocols/rtmp/from_stream.go b/internal/protocols/rtmp/from_stream.go
index 4abeee7a..dd8f75f5 100644
--- a/internal/protocols/rtmp/from_stream.go
+++ b/internal/protocols/rtmp/from_stream.go
@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	"github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortmplib/pkg/message"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
 	"github.com/bluenviron/gortsplib/v5/pkg/format"
@@ -44,7 +45,7 @@ func FromStream(
 	nconn net.Conn,
 	writeTimeout time.Duration,
 ) error {
-	var tracks []format.Format
+	var tracks []*gortmplib.Track
 	var w *gortmplib.Writer
 
 	for _, media := range desc.Medias {
@@ -52,6 +53,11 @@ func FromStream(
 			switch forma := forma.(type) {
 			case *format.AV1:
 				if slices.Contains(conn.FourCcList, any(fourCCToString(message.FourCCAV1))) {
+					track := &gortmplib.Track{
+						Codec: &codecs.AV1{},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -62,16 +68,19 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteAV1(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								u.Payload.(unit.PayloadAV1))
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.VP9:
 				if slices.Contains(conn.FourCcList, any(fourCCToString(message.FourCCVP9))) {
+					track := &gortmplib.Track{
+						Codec: &codecs.VP9{},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -82,16 +91,24 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteVP9(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								u.Payload.(unit.PayloadVP9))
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.H265:
 				if slices.Contains(conn.FourCcList, any(fourCCToString(message.FourCCHEVC))) {
+					vps, sps, pps := forma.SafeParams()
+					track := &gortmplib.Track{
+						Codec: &codecs.H265{
+							VPS: vps,
+							SPS: sps,
+							PPS: pps,
+						},
+					}
+					tracks = append(tracks, track)
+
 					var videoDTSExtractor *h265.DTSExtractor
 
 					r.OnData(
@@ -117,16 +134,23 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteH265(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								timestampToDuration(dts, forma.ClockRate()),
 								u.Payload.(unit.PayloadH265))
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.H264:
+				sps, pps := forma.SafeParams()
+				track := &gortmplib.Track{
+					Codec: &codecs.H264{
+						SPS: sps,
+						PPS: pps,
+					},
+				}
+				tracks = append(tracks, track)
+
 				var videoDTSExtractor *h264.DTSExtractor
 
 				r.OnData(
@@ -170,16 +194,21 @@ func FromStream(
 
 						nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 						return (*w).WriteH264(
-							forma,
+							track,
 							timestampToDuration(u.PTS, forma.ClockRate()),
 							timestampToDuration(dts, forma.ClockRate()),
 							u.Payload.(unit.PayloadH264))
 					})
 
-				tracks = append(tracks, forma)
-
 			case *format.Opus:
 				if slices.Contains(conn.FourCcList, any(fourCCToString(message.FourCCOpus))) {
+					track := &gortmplib.Track{
+						Codec: &codecs.Opus{
+							ChannelCount: forma.ChannelCount,
+						},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -193,7 +222,7 @@ func FromStream(
 							for _, pkt := range u.Payload.(unit.PayloadOpus) {
 								nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 								err := (*w).WriteOpus(
-									forma,
+									track,
 									timestampToDuration(pts, forma.ClockRate()),
 									pkt,
 								)
@@ -206,11 +235,16 @@ func FromStream(
 
 							return nil
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.MPEG4Audio:
+				track := &gortmplib.Track{
+					Codec: &codecs.MPEG4Audio{
+						Config: forma.Config,
+					},
+				}
+				tracks = append(tracks, track)
+
 				r.OnData(
 					media,
 					forma,
@@ -224,7 +258,7 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							err := (*w).WriteMPEG4Audio(
-								forma,
+								track,
 								timestampToDuration(pts, forma.ClockRate()),
 								au,
 							)
@@ -236,10 +270,15 @@ func FromStream(
 						return nil
 					})
 
-				tracks = append(tracks, forma)
-
 			case *format.MPEG4AudioLATM:
 				if !forma.CPresent {
+					track := &gortmplib.Track{
+						Codec: &codecs.MPEG4Audio{
+							Config: forma.StreamMuxConfig.Programs[0].Layers[0].AudioSpecificConfig,
+						},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -257,16 +296,19 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteMPEG4Audio(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								ame.Payloads[0][0][0],
 							)
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.MPEG1Audio:
+				track := &gortmplib.Track{
+					Codec: &codecs.MPEG1Audio{},
+				}
+				tracks = append(tracks, track)
+
 				r.OnData(
 					media,
 					forma,
@@ -286,7 +328,7 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							err = (*w).WriteMPEG1Audio(
-								forma,
+								track,
 								timestampToDuration(pts, forma.ClockRate()),
 								frame)
 							if err != nil {
@@ -300,10 +342,16 @@ func FromStream(
 						return nil
 					})
 
-				tracks = append(tracks, forma)
-
 			case *format.AC3:
 				if slices.Contains(conn.FourCcList, any(fourCCToString(message.FourCCAC3))) {
+					track := &gortmplib.Track{
+						Codec: &codecs.AC3{
+							SampleRate:   forma.SampleRate,
+							ChannelCount: forma.ChannelCount,
+						},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -317,7 +365,7 @@ func FromStream(
 
 								nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 								err := (*w).WriteAC3(
-									forma,
+									track,
 									timestampToDuration(pts, forma.ClockRate()),
 									frame)
 								if err != nil {
@@ -327,12 +375,19 @@ func FromStream(
 
 							return nil
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.G711:
 				if forma.SampleRate == 8000 {
+					track := &gortmplib.Track{
+						Codec: &codecs.G711{
+							MULaw:        forma.MULaw,
+							SampleRate:   forma.SampleRate,
+							ChannelCount: forma.ChannelCount,
+						},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -343,13 +398,11 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteG711(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								u.Payload.(unit.PayloadG711),
 							)
 						})
-
-					tracks = append(tracks, forma)
 				}
 
 			case *format.LPCM:
@@ -358,6 +411,15 @@ func FromStream(
 						forma.SampleRate == 11025 ||
 						forma.SampleRate == 22050 ||
 						forma.SampleRate == 44100) {
+					track := &gortmplib.Track{
+						Codec: &codecs.LPCM{
+							BitDepth:     forma.BitDepth,
+							SampleRate:   forma.SampleRate,
+							ChannelCount: forma.ChannelCount,
+						},
+					}
+					tracks = append(tracks, track)
+
 					r.OnData(
 						media,
 						forma,
@@ -368,13 +430,11 @@ func FromStream(
 
 							nconn.SetWriteDeadline(time.Now().Add(writeTimeout))
 							return (*w).WriteLPCM(
-								forma,
+								track,
 								timestampToDuration(u.PTS, forma.ClockRate()),
 								u.Payload.(unit.PayloadLPCM),
 							)
 						})
-
-					tracks = append(tracks, forma)
 				}
 			}
 		}
@@ -393,10 +453,12 @@ func FromStream(
 		return err
 	}
 
+	setuppedFormats := r.Formats()
+
 	n := 1
 	for _, media := range desc.Medias {
 		for _, forma := range media.Formats {
-			if !slices.Contains(tracks, forma) {
+			if !slices.Contains(setuppedFormats, forma) {
 				r.Parent.Log(logger.Warn, "skipping track %d (%s)", n, forma.Codec())
 			}
 			n++
diff --git a/internal/protocols/rtmp/from_stream_test.go b/internal/protocols/rtmp/from_stream_test.go
index e315b632..ac15dd64 100644
--- a/internal/protocols/rtmp/from_stream_test.go
+++ b/internal/protocols/rtmp/from_stream_test.go
@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	"github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
 	"github.com/bluenviron/gortsplib/v5/pkg/format"
 	"github.com/bluenviron/mediamtx/internal/codecprocessor"
@@ -20,405 +21,49 @@ import (
 )
 
 func TestFromStream(t *testing.T) {
-	for _, ca := range []string{
-		"h264 + aac",
-		"av1",
-		"vp9",
-		"h265",
-		"h264",
-		"opus",
-		"aac",
-		"mp3",
-		"ac-3",
-		"pcma",
-		"pcmu",
-		"lpcm",
-		"h265 + h264 + vp9 + av1 + opus + aac",
-	} {
-		t.Run(ca, func(t *testing.T) {
-			var medias []*description.Media
+	h265VPS := []byte{
+		0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x01, 0x60,
+		0x00, 0x00, 0x03, 0x00, 0x90, 0x00, 0x00, 0x03,
+		0x00, 0x00, 0x03, 0x00, 0x78, 0xba, 0x02, 0x40,
+	}
+	h265SPS := []byte{
+		0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x03,
+		0x00, 0x90, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
+		0x00, 0x78, 0xa0, 0x03, 0xc0, 0x80, 0x11, 0x07,
+		0xcb, 0x96, 0xe9, 0x29, 0x30, 0xbc, 0x05, 0xa0,
+		0x20, 0x00, 0x00, 0x03, 0x00, 0x20, 0x00, 0x00,
+		0x03, 0x03, 0xc1,
+	}
+	h265PPS := []byte{
+		0x44, 0x01, 0xc0, 0x73, 0xc1, 0x89,
+	}
 
-			switch ca {
-			case "h264 + aac":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{test.FormatH264},
-					},
-					{
-						Formats: []format.Format{test.FormatMPEG4Audio},
-					},
-				}
-
-			case "av1":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.AV1{
-							PayloadTyp: 96,
-						}},
-					},
-				}
-
-			case "vp9":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.VP9{
-							PayloadTyp: 96,
-						}},
-					},
-				}
-
-			case "h265":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{
-							&format.H265{
-								PayloadTyp: 96,
-								VPS: []byte{
-									0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x01, 0x60,
-									0x00, 0x00, 0x03, 0x00, 0x90, 0x00, 0x00, 0x03,
-									0x00, 0x00, 0x03, 0x00, 0x78, 0xba, 0x02, 0x40,
-								},
-								SPS: []byte{
-									0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x03,
-									0x00, 0x90, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
-									0x00, 0x78, 0xa0, 0x03, 0xc0, 0x80, 0x11, 0x07,
-									0xcb, 0x96, 0xe9, 0x29, 0x30, 0xbc, 0x05, 0xa0,
-									0x20, 0x00, 0x00, 0x03, 0x00, 0x20, 0x00, 0x00,
-									0x03, 0x03, 0xc1,
-								},
-								PPS: []byte{
-									0x44, 0x01, 0xc0, 0x73, 0xc1, 0x89,
-								},
-							},
-						},
-					},
-				}
-
-			case "h264":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{test.FormatH264},
-					},
-				}
-
-			case "opus":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.Opus{
-							PayloadTyp:   96,
-							ChannelCount: 2,
-						}},
-					},
-				}
-
-			case "aac":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{test.FormatMPEG4Audio},
-					},
-				}
-
-			case "mp3":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.MPEG1Audio{}},
-					},
-				}
-
-			case "ac-3":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.AC3{
-							SampleRate:   44100,
-							ChannelCount: 2,
-						}},
-					},
-				}
-
-			case "pcma":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.G711{
-							MULaw:        false,
-							SampleRate:   8000,
-							ChannelCount: 1,
-						}},
-					},
-				}
-
-			case "pcmu":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.G711{
-							MULaw:        true,
-							SampleRate:   8000,
-							ChannelCount: 1,
-						}},
-					},
-				}
-
-			case "lpcm":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.LPCM{
-							BitDepth:     16,
-							SampleRate:   44100,
-							ChannelCount: 2,
-						}},
-					},
-				}
-
-			case "h265 + h264 + vp9 + av1 + opus + aac":
-				medias = []*description.Media{
-					{
-						Formats: []format.Format{&format.H265{}},
-					},
-					{
-						Formats: []format.Format{&format.H264{}},
-					},
-					{
-						Formats: []format.Format{&format.VP9{}},
-					},
-					{
-						Formats: []format.Format{&format.AV1{}},
-					},
-					{
-						Formats: []format.Format{&format.Opus{
-							PayloadTyp:   96,
-							ChannelCount: 2,
-						}},
-					},
-					{
-						Formats: []format.Format{&format.MPEG4Audio{
-							PayloadTyp:       96,
-							Config:           test.FormatMPEG4Audio.Config,
-							SizeLength:       13,
-							IndexLength:      3,
-							IndexDeltaLength: 3,
-						}},
-					},
-				}
-			}
-
-			strm := &stream.Stream{
-				WriteQueueSize:     512,
-				RTPMaxPayloadSize:  1450,
-				Desc:               &description.Session{Medias: medias},
-				GenerateRTPPackets: true,
-				Parent:             test.NilLogger,
-			}
-			err := strm.Initialize()
-			require.NoError(t, err)
-
-			ln, err := net.Listen("tcp", "127.0.0.1:9121")
-			require.NoError(t, err)
-			defer ln.Close()
-
-			done := make(chan struct{})
-
-			go func() {
-				u, err2 := url.Parse("rtmp://127.0.0.1:9121/stream")
-				require.NoError(t, err2)
-
-				c := &gortmplib.Client{
-					URL: u,
-				}
-				err2 = c.Initialize(context.Background())
-				require.NoError(t, err2)
-
-				r := &gortmplib.Reader{
-					Conn: c,
-				}
-				err2 = r.Initialize()
-				require.NoError(t, err2)
-
-				switch ca {
-				case "h264 + aac":
-					require.Equal(t, []format.Format{
-						&format.H264{
-							SPS:               test.FormatH264.SPS,
-							PPS:               test.FormatH264.PPS,
-							PacketizationMode: 1,
-							PayloadTyp:        96,
-						},
-						&format.MPEG4Audio{
-							PayloadTyp:       96,
-							Config:           test.FormatMPEG4Audio.Config,
-							SizeLength:       13,
-							IndexLength:      3,
-							IndexDeltaLength: 3,
-						},
-					}, r.Tracks())
-
-				case "av1":
-					require.Equal(t, []format.Format{
-						&format.AV1{
-							PayloadTyp: 96,
-						},
-					}, r.Tracks())
-
-				case "vp9":
-					require.Equal(t, []format.Format{
-						&format.VP9{
-							PayloadTyp: 96,
-						},
-					}, r.Tracks())
-
-				case "h265":
-					require.Equal(t, []format.Format{
-						&format.H265{
-							VPS: []byte{
-								0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x01, 0x60,
-								0x00, 0x00, 0x03, 0x00, 0x90, 0x00, 0x00, 0x03,
-								0x00, 0x00, 0x03, 0x00, 0x78, 0xba, 0x02, 0x40,
-							},
-							SPS: []byte{
-								0x42, 0x01, 0x01, 0x01, 0x60, 0x00, 0x00, 0x03,
-								0x00, 0x90, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03,
-								0x00, 0x78, 0xa0, 0x03, 0xc0, 0x80, 0x11, 0x07,
-								0xcb, 0x96, 0xe9, 0x29, 0x30, 0xbc, 0x05, 0xa0,
-								0x20, 0x00, 0x00, 0x03, 0x00, 0x20, 0x00, 0x00,
-								0x03, 0x03, 0xc1,
-							},
-							PPS: []byte{
-								0x44, 0x01, 0xc0, 0x73, 0xc1, 0x89,
-							},
-							PayloadTyp: 96,
-						},
-					}, r.Tracks())
-
-				case "h264":
-					require.Equal(t, []format.Format{
-						&format.H264{
-							SPS:               test.FormatH264.SPS,
-							PPS:               test.FormatH264.PPS,
-							PacketizationMode: 1,
-							PayloadTyp:        96,
-						},
-					}, r.Tracks())
-
-				case "opus":
-					require.Equal(t, []format.Format{
-						&format.Opus{
-							PayloadTyp:   96,
-							ChannelCount: 2,
-						},
-					}, r.Tracks())
-
-				case "aac":
-					require.Equal(t, []format.Format{
-						&format.MPEG4Audio{
-							PayloadTyp:       96,
-							Config:           test.FormatMPEG4Audio.Config,
-							SizeLength:       13,
-							IndexLength:      3,
-							IndexDeltaLength: 3,
-						},
-					}, r.Tracks())
-
-				case "mp3":
-					require.Equal(t, []format.Format{
-						&format.MPEG1Audio{},
-					}, r.Tracks())
-
-				case "ac-3":
-					require.Equal(t, []format.Format{
-						&format.AC3{
-							PayloadTyp:   96,
-							SampleRate:   48000,
-							ChannelCount: 1,
-						},
-					}, r.Tracks())
-
-				case "pcma":
-					require.Equal(t, []format.Format{
-						&format.G711{
-							PayloadTyp:   8,
-							MULaw:        false,
-							ChannelCount: 1,
-							SampleRate:   8000,
-						},
-					}, r.Tracks())
-
-				case "pcmu":
-					require.Equal(t, []format.Format{
-						&format.G711{
-							MULaw:        true,
-							ChannelCount: 1,
-							SampleRate:   8000,
-						},
-					}, r.Tracks())
-
-				case "lpcm":
-					require.Equal(t, []format.Format{
-						&format.LPCM{
-							PayloadTyp:   96,
-							BitDepth:     16,
-							SampleRate:   44100,
-							ChannelCount: 2,
-						},
-					}, r.Tracks())
-
-				case "h265 + h264 + vp9 + av1 + opus + aac":
-					require.Equal(t, []format.Format{
-						&format.H265{
-							PayloadTyp: 96,
-							VPS:        codecprocessor.H265DefaultVPS,
-							SPS:        codecprocessor.H265DefaultSPS,
-							PPS:        codecprocessor.H265DefaultPPS,
-						},
-						&format.H264{
-							PayloadTyp:        96,
-							PacketizationMode: 1,
-							SPS:               codecprocessor.H264DefaultSPS,
-							PPS:               codecprocessor.H264DefaultPPS,
-						},
-						&format.VP9{
-							PayloadTyp: 96,
-						},
-						&format.AV1{
-							PayloadTyp: 96,
-						},
-						&format.Opus{
-							PayloadTyp:   96,
-							ChannelCount: 2,
-						},
-						&format.MPEG4Audio{
-							PayloadTyp:       96,
-							Config:           test.FormatMPEG4Audio.Config,
-							SizeLength:       13,
-							IndexLength:      3,
-							IndexDeltaLength: 3,
-						},
-					}, r.Tracks())
-				}
-
-				close(done)
-			}()
-
-			nconn, err := ln.Accept()
-			require.NoError(t, err)
-			defer nconn.Close()
-
-			conn := &gortmplib.ServerConn{
-				RW: nconn,
-			}
-			err = conn.Initialize()
-			require.NoError(t, err)
-
-			err = conn.Accept()
-			require.NoError(t, err)
-
-			r := &stream.Reader{Parent: test.NilLogger}
-
-			err = FromStream(strm.Desc, r, conn, nconn, 10*time.Second)
-			require.NoError(t, err)
-
-			strm.AddReader(r)
-			defer strm.RemoveReader(r)
-
-			switch ca {
-			case "h264 + aac":
+	cases := []struct {
+		name           string
+		medias         []*description.Media
+		expectedTracks []*gortmplib.Track
+		writeUnits     func([]*description.Media, *stream.Stream)
+	}{
+		{
+			name: "h264 + aac",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{test.FormatH264},
+				},
+				{
+					Formats: []format.Format{test.FormatMPEG4Audio},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.H264{
+					SPS: test.FormatH264.SPS,
+					PPS: test.FormatH264.PPS,
+				}},
+				{Codec: &codecs.MPEG4Audio{
+					Config: test.FormatMPEG4Audio.Config,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 					PTS: 0,
 					Payload: unit.PayloadH264{
@@ -432,8 +77,21 @@ func TestFromStream(t *testing.T) {
 						{3, 4},
 					},
 				})
-
-			case "av1":
+			},
+		},
+		{
+			name: "av1",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.AV1{
+						PayloadTyp: 96,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.AV1{}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 2 * int64(i),
@@ -443,16 +101,51 @@ func TestFromStream(t *testing.T) {
 						}},
 					})
 				}
-
-			case "vp9":
+			},
+		},
+		{
+			name: "vp9",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.VP9{
+						PayloadTyp: 96,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.VP9{}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS:     90000 * 2 * int64(i),
 						Payload: unit.PayloadVP9{1, 2},
 					})
 				}
-
-			case "h265":
+			},
+		},
+		{
+			name: "h265",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{
+						&format.H265{
+							PayloadTyp: 96,
+							VPS:        h265VPS,
+							SPS:        h265SPS,
+							PPS:        h265PPS,
+						},
+					},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.H265{
+					VPS: h265VPS,
+					SPS: h265SPS,
+					PPS: h265PPS,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 2 * int64(i),
@@ -462,8 +155,22 @@ func TestFromStream(t *testing.T) {
 						}},
 					})
 				}
-
-			case "h264":
+			},
+		},
+		{
+			name: "h264",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{test.FormatH264},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.H264{
+					SPS: test.FormatH264.SPS,
+					PPS: test.FormatH264.PPS,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 2 * int64(i),
@@ -472,8 +179,24 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "opus":
+			},
+		},
+		{
+			name: "opus",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.Opus{
+						PayloadTyp:   96,
+						ChannelCount: 2,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.Opus{
+					ChannelCount: 2,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -482,8 +205,21 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "aac":
+			},
+		},
+		{
+			name: "aac",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{test.FormatMPEG4Audio},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.MPEG4Audio{
+					Config: test.FormatMPEG4Audio.Config,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -492,8 +228,19 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "mp3":
+			},
+		},
+		{
+			name: "mp3",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.MPEG1Audio{}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.MPEG1Audio{}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -504,8 +251,25 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "ac-3":
+			},
+		},
+		{
+			name: "ac-3",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.AC3{
+						SampleRate:   44100,
+						ChannelCount: 2,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.AC3{
+					SampleRate:   48000,
+					ChannelCount: 1,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -563,8 +327,27 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "pcma", "pcmu":
+			},
+		},
+		{
+			name: "pcma",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.G711{
+						MULaw:        false,
+						SampleRate:   8000,
+						ChannelCount: 1,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.G711{
+					MULaw:        false,
+					ChannelCount: 1,
+					SampleRate:   8000,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -573,8 +356,56 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "lpcm":
+			},
+		},
+		{
+			name: "pcmu",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.G711{
+						MULaw:        true,
+						SampleRate:   8000,
+						ChannelCount: 1,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.G711{
+					MULaw:        true,
+					ChannelCount: 1,
+					SampleRate:   8000,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
+				for i := range 2 {
+					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
+						PTS: 90000 * 5 * int64(i),
+						Payload: unit.PayloadG711{
+							3, 4,
+						},
+					})
+				}
+			},
+		},
+		{
+			name: "lpcm",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.LPCM{
+						BitDepth:     16,
+						SampleRate:   44100,
+						ChannelCount: 2,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.LPCM{
+					BitDepth:     16,
+					SampleRate:   44100,
+					ChannelCount: 2,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				for i := range 2 {
 					strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 						PTS: 90000 * 5 * int64(i),
@@ -583,8 +414,59 @@ func TestFromStream(t *testing.T) {
 						},
 					})
 				}
-
-			case "h265 + h264 + vp9 + av1 + opus + aac":
+			},
+		},
+		{
+			name: "h265 + h264 + vp9 + av1 + opus + aac",
+			medias: []*description.Media{
+				{
+					Formats: []format.Format{&format.H265{}},
+				},
+				{
+					Formats: []format.Format{&format.H264{}},
+				},
+				{
+					Formats: []format.Format{&format.VP9{}},
+				},
+				{
+					Formats: []format.Format{&format.AV1{}},
+				},
+				{
+					Formats: []format.Format{&format.Opus{
+						PayloadTyp:   96,
+						ChannelCount: 2,
+					}},
+				},
+				{
+					Formats: []format.Format{&format.MPEG4Audio{
+						PayloadTyp:       96,
+						Config:           test.FormatMPEG4Audio.Config,
+						SizeLength:       13,
+						IndexLength:      3,
+						IndexDeltaLength: 3,
+					}},
+				},
+			},
+			expectedTracks: []*gortmplib.Track{
+				{Codec: &codecs.H265{
+					VPS: codecprocessor.H265DefaultVPS,
+					SPS: codecprocessor.H265DefaultSPS,
+					PPS: codecprocessor.H265DefaultPPS,
+				}},
+				{Codec: &codecs.H264{
+					SPS: codecprocessor.H264DefaultSPS,
+					PPS: codecprocessor.H264DefaultPPS,
+				}},
+				{Codec: &codecs.VP9{}},
+				{Codec: &codecs.AV1{}},
+				{Codec: &codecs.Opus{
+					ChannelCount: 2,
+				}},
+				{Codec: &codecs.MPEG4Audio{
+					Config: test.FormatMPEG4Audio.Config,
+				}},
+			},
+			writeUnits: func(medias []*description.Media, strm *stream.Stream) {
 				strm.WriteUnit(medias[0], medias[0].Formats[0], &unit.Unit{
 					Payload: unit.PayloadH265{
 						{
@@ -641,7 +523,73 @@ func TestFromStream(t *testing.T) {
 						{3, 4},
 					},
 				})
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			medias := tc.medias
+
+			strm := &stream.Stream{
+				WriteQueueSize:     512,
+				RTPMaxPayloadSize:  1450,
+				Desc:               &description.Session{Medias: medias},
+				GenerateRTPPackets: true,
+				Parent:             test.NilLogger,
 			}
+			err := strm.Initialize()
+			require.NoError(t, err)
+
+			ln, err := net.Listen("tcp", "127.0.0.1:9121")
+			require.NoError(t, err)
+			defer ln.Close()
+
+			done := make(chan struct{})
+
+			go func() {
+				u, err2 := url.Parse("rtmp://127.0.0.1:9121/stream")
+				require.NoError(t, err2)
+
+				c := &gortmplib.Client{
+					URL: u,
+				}
+				err2 = c.Initialize(context.Background())
+				require.NoError(t, err2)
+
+				r := &gortmplib.Reader{
+					Conn: c,
+				}
+				err2 = r.Initialize()
+				require.NoError(t, err2)
+
+				require.Equal(t, tc.expectedTracks, r.Tracks())
+
+				close(done)
+			}()
+
+			nconn, err := ln.Accept()
+			require.NoError(t, err)
+			defer nconn.Close()
+
+			conn := &gortmplib.ServerConn{
+				RW: nconn,
+			}
+			err = conn.Initialize()
+			require.NoError(t, err)
+
+			err = conn.Accept()
+			require.NoError(t, err)
+
+			r := &stream.Reader{Parent: test.NilLogger}
+
+			err = FromStream(strm.Desc, r, conn, nconn, 10*time.Second)
+			require.NoError(t, err)
+
+			strm.AddReader(r)
+			defer strm.RemoveReader(r)
+
+			tc.writeUnits(medias, strm)
 
 			<-done
 		})
diff --git a/internal/protocols/rtmp/to_stream.go b/internal/protocols/rtmp/to_stream.go
index c98c9c53..53a36017 100644
--- a/internal/protocols/rtmp/to_stream.go
+++ b/internal/protocols/rtmp/to_stream.go
@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	"github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortmplib/pkg/message"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
 	"github.com/bluenviron/gortsplib/v5/pkg/format"
@@ -38,145 +39,199 @@ func ToStream(
 	var medias []*description.Media
 
 	for _, track := range r.Tracks() {
-		ctrack := track
-
-		switch ttrack := track.(type) {
-		case *format.AV1:
+		switch codec := track.Codec.(type) {
+		case *codecs.AV1:
+			forma := &format.AV1{
+				PayloadTyp: 96,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeVideo,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataAV1(ttrack, func(pts time.Duration, tu [][]byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataAV1(track, func(pts time.Duration, tu [][]byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadAV1(tu),
 				})
 			})
 
-		case *format.VP9:
+		case *codecs.VP9:
+			forma := &format.VP9{
+				PayloadTyp: 96,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeVideo,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataVP9(ttrack, func(pts time.Duration, frame []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataVP9(track, func(pts time.Duration, frame []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadVP9(frame),
 				})
 			})
 
-		case *format.H265:
+		case *codecs.H265:
+			forma := &format.H265{
+				PayloadTyp: 96,
+				VPS:        codec.VPS,
+				SPS:        codec.SPS,
+				PPS:        codec.PPS,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeVideo,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataH265(ttrack, func(pts time.Duration, _ time.Duration, au [][]byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataH265(track, func(pts time.Duration, _ time.Duration, au [][]byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadH265(au),
 				})
 			})
 
-		case *format.H264:
+		case *codecs.H264:
+			forma := &format.H264{
+				PayloadTyp:        96,
+				SPS:               codec.SPS,
+				PPS:               codec.PPS,
+				PacketizationMode: 1,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeVideo,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataH264(ttrack, func(pts time.Duration, _ time.Duration, au [][]byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataH264(track, func(pts time.Duration, _ time.Duration, au [][]byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadH264(au),
 				})
 			})
 
-		case *format.Opus:
+		case *codecs.Opus:
+			forma := &format.Opus{
+				PayloadTyp:   96,
+				ChannelCount: codec.ChannelCount,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataOpus(ttrack, func(pts time.Duration, packet []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataOpus(track, func(pts time.Duration, packet []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadOpus{packet},
 				})
 			})
 
-		case *format.MPEG4Audio:
+		case *codecs.MPEG4Audio:
+			forma := &format.MPEG4Audio{
+				PayloadTyp:       96,
+				Config:           codec.Config,
+				SizeLength:       13,
+				IndexLength:      3,
+				IndexDeltaLength: 3,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataMPEG4Audio(ttrack, func(pts time.Duration, au []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataMPEG4Audio(track, func(pts time.Duration, au []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadMPEG4Audio{au},
 				})
 			})
 
-		case *format.MPEG1Audio:
+		case *codecs.MPEG1Audio:
+			forma := &format.MPEG1Audio{}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataMPEG1Audio(ttrack, func(pts time.Duration, frame []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataMPEG1Audio(track, func(pts time.Duration, frame []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadMPEG1Audio{frame},
 				})
 			})
 
-		case *format.AC3:
+		case *codecs.AC3:
+			forma := &format.AC3{
+				PayloadTyp:   96,
+				SampleRate:   codec.SampleRate,
+				ChannelCount: codec.ChannelCount,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataAC3(ttrack, func(pts time.Duration, frame []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataAC3(track, func(pts time.Duration, frame []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadAC3{frame},
 				})
 			})
 
-		case *format.G711:
+		case *codecs.G711:
+			forma := &format.G711{
+				PayloadTyp: func() uint8 {
+					switch {
+					case codec.ChannelCount == 1 && codec.MULaw:
+						return 0
+					case codec.ChannelCount == 1 && !codec.MULaw:
+						return 8
+					default:
+						return 96
+					}
+				}(),
+				MULaw:        codec.MULaw,
+				SampleRate:   codec.SampleRate,
+				ChannelCount: codec.ChannelCount,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataG711(ttrack, func(pts time.Duration, samples []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataG711(track, func(pts time.Duration, samples []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadG711(samples),
 				})
 			})
 
-		case *format.LPCM:
+		case *codecs.LPCM:
+			forma := &format.LPCM{
+				PayloadTyp:   96,
+				BitDepth:     codec.BitDepth,
+				SampleRate:   codec.SampleRate,
+				ChannelCount: codec.ChannelCount,
+			}
 			medi := &description.Media{
 				Type:    description.MediaTypeAudio,
-				Formats: []format.Format{ctrack},
+				Formats: []format.Format{forma},
 			}
 			medias = append(medias, medi)
 
-			r.OnDataLPCM(ttrack, func(pts time.Duration, samples []byte) {
-				(*strm).WriteUnit(medi, ctrack, &unit.Unit{
-					PTS:     durationToTimestamp(pts, ctrack.ClockRate()),
+			r.OnDataLPCM(track, func(pts time.Duration, samples []byte) {
+				(*strm).WriteUnit(medi, forma, &unit.Unit{
+					PTS:     durationToTimestamp(pts, forma.ClockRate()),
 					Payload: unit.PayloadLPCM(samples),
 				})
 			})
diff --git a/internal/protocols/webrtc/from_stream.go b/internal/protocols/webrtc/from_stream.go
index 33113bc4..518fb5e1 100644
--- a/internal/protocols/webrtc/from_stream.go
+++ b/internal/protocols/webrtc/from_stream.go
@@ -4,6 +4,7 @@ import (
 	"crypto/rand"
 	"errors"
 	"fmt"
+	"slices"
 	"time"
 
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
@@ -666,10 +667,12 @@ func FromStream(
 		return errNoSupportedCodecsFrom
 	}
 
+	setuppedFormats := r.Formats()
+
 	n := 1
 	for _, media := range desc.Medias {
 		for _, forma := range media.Formats {
-			if forma != videoFormat && forma != audioFormat {
+			if !slices.Contains(setuppedFormats, forma) {
 				r.Parent.Log(logger.Warn, "skipping track %d (%s)", n, forma.Codec())
 			}
 			n++
diff --git a/internal/servers/rtmp/server_test.go b/internal/servers/rtmp/server_test.go
index 2ae60f5a..d6abebbd 100644
--- a/internal/servers/rtmp/server_test.go
+++ b/internal/servers/rtmp/server_test.go
@@ -9,8 +9,8 @@ import (
 	"time"
 
 	"github.com/bluenviron/gortmplib"
+	"github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/gortsplib/v5/pkg/description"
-	"github.com/bluenviron/gortsplib/v5/pkg/format"
 	"github.com/bluenviron/mediamtx/internal/conf"
 	"github.com/bluenviron/mediamtx/internal/defs"
 	"github.com/bluenviron/mediamtx/internal/externalcmd"
@@ -158,14 +158,22 @@ func TestServerPublish(t *testing.T) {
 			defer conn.Close()
 
 			w := &gortmplib.Writer{
-				Conn:   conn,
-				Tracks: []format.Format{test.FormatH264, test.FormatMPEG4Audio},
+				Conn: conn,
+				Tracks: []*gortmplib.Track{
+					{Codec: &codecs.H264{
+						SPS: test.FormatH264.SPS,
+						PPS: test.FormatH264.PPS,
+					}},
+					{Codec: &codecs.MPEG4Audio{
+						Config: test.FormatMPEG4Audio.Config,
+					}},
+				},
 			}
 			err = w.Initialize()
 			require.NoError(t, err)
 
 			err = w.WriteH264(
-				test.FormatH264,
+				w.Tracks[0],
 				2*time.Second, 2*time.Second, [][]byte{
 					{5, 2, 3, 4},
 				})
@@ -292,9 +300,11 @@ func TestServerRead(t *testing.T) {
 			require.NoError(t, err)
 
 			tracks := r.Tracks()
-			require.Equal(t, []format.Format{test.FormatH264}, tracks)
+			require.Len(t, tracks, 1)
+			_, ok := tracks[0].Codec.(*codecs.H264)
+			require.True(t, ok)
 
-			r.OnDataH264(tracks[0].(*format.H264), func(_ time.Duration, _ time.Duration, au [][]byte) {
+			r.OnDataH264(tracks[0], func(_ time.Duration, _ time.Duration, au [][]byte) {
 				require.Equal(t, [][]byte{
 					test.FormatH264.SPS,
 					test.FormatH264.PPS,
diff --git a/internal/staticsources/rtmp/source_test.go b/internal/staticsources/rtmp/source_test.go
index ca3ef33c..633275f4 100644
--- a/internal/staticsources/rtmp/source_test.go
+++ b/internal/staticsources/rtmp/source_test.go
@@ -11,7 +11,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/bluenviron/gortmplib"
-	"github.com/bluenviron/gortsplib/v5/pkg/format"
+	"github.com/bluenviron/gortmplib/pkg/codecs"
 	"github.com/bluenviron/mediamtx/internal/conf"
 	"github.com/bluenviron/mediamtx/internal/defs"
 	"github.com/bluenviron/mediamtx/internal/test"
@@ -118,13 +118,21 @@ func TestSource(t *testing.T) {
 					require.NoError(t, err)
 
 					w := &gortmplib.Writer{
-						Conn:   conn,
-						Tracks: []format.Format{test.FormatH264, test.FormatMPEG4Audio},
+						Conn: conn,
+						Tracks: []*gortmplib.Track{
+							{Codec: &codecs.H264{
+								SPS: test.FormatH264.SPS,
+								PPS: test.FormatH264.PPS,
+							}},
+							{Codec: &codecs.MPEG4Audio{
+								Config: test.FormatMPEG4Audio.Config,
+							}},
+						},
 					}
 					err = w.Initialize()
 					require.NoError(t, err)
 
-					err = w.WriteMPEG4Audio(test.FormatMPEG4Audio, 2*time.Second, []byte{5, 2, 3, 4})
+					err = w.WriteMPEG4Audio(w.Tracks[1], 2*time.Second, []byte{5, 2, 3, 4})
 					require.NoError(t, err)
 
 					break