Total rewrite mov/mp4 encoder

2023-01-26 22:29:12 +03:00
parent e295bc4eaf
commit d05ab79f88
10 changed files with 1157 additions and 164 deletions
@@ -0,0 +1,318 @@
+package mov
+
+const (
+	Ftyp                        = "ftyp"
+	Moov                        = "moov"
+	MoovMvhd                    = "mvhd"
+	MoovTrak                    = "trak"
+	MoovTrakTkhd                = "tkhd"
+	MoovTrakMdia                = "mdia"
+	MoovTrakMdiaMdhd            = "mdhd"
+	MoovTrakMdiaHdlr            = "hdlr"
+	MoovTrakMdiaMinf            = "minf"
+	MoovTrakMdiaMinfVmhd        = "vmhd"
+	MoovTrakMdiaMinfSmhd        = "smhd"
+	MoovTrakMdiaMinfDinf        = "dinf"
+	MoovTrakMdiaMinfDinfDref    = "dref"
+	MoovTrakMdiaMinfDinfDrefUrl = "url "
+	MoovTrakMdiaMinfStbl        = "stbl"
+	MoovTrakMdiaMinfStblStsd    = "stsd"
+	MoovTrakMdiaMinfStblStts    = "stts"
+	MoovTrakMdiaMinfStblStsc    = "stsc"
+	MoovTrakMdiaMinfStblStsz    = "stsz"
+	MoovTrakMdiaMinfStblStco    = "stco"
+	MoovMvex                    = "mvex"
+	MoovMvexTrex                = "trex"
+	Moof                        = "moof"
+	MoofMfhd                    = "mfhd"
+	MoofTraf                    = "traf"
+	MoofTrafTfhd                = "tfhd"
+	MoofTrafTfdt                = "tfdt"
+	MoofTrafTrun                = "trun"
+	Mdat                        = "mdat"
+)
+
+func (m *Movie) WriteFileType() {
+	m.StartAtom(Ftyp)
+	m.WriteString("iso5")
+	m.WriteUint32(512)
+	m.WriteString("iso5")
+	m.WriteString("iso6")
+	m.WriteString("mp41")
+	m.EndAtom()
+}
+
+func (m *Movie) WriteMovieHeader() {
+	m.StartAtom(MoovMvhd)
+	m.Skip(1)           // version
+	m.Skip(3)           // flags
+	m.Skip(4)           // create time
+	m.Skip(4)           // modify time
+	m.WriteUint32(1000) // time scale
+	m.Skip(4)           // duration
+	m.WriteFloat32(1)   // preferred rate
+	m.WriteFloat16(1)   // preferred volume
+	m.Skip(10)          // reserved
+	m.WriteMatrix()
+	m.Skip(6 * 4)             // predefined?
+	m.WriteUint32(0xFFFFFFFF) // next track ID
+	m.EndAtom()
+}
+
+func (m *Movie) WriteTrackHeader(id uint32, width, height uint16) {
+	const (
+		TkhdTrackEnabled   = 0x0001
+		TkhdTrackInMovie   = 0x0002
+		TkhdTrackInPreview = 0x0004
+		TkhdTrackInPoster  = 0x0008
+	)
+
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-32963
+	m.StartAtom(MoovTrakTkhd)
+	m.Skip(1) // version
+	m.WriteUint24(TkhdTrackEnabled | TkhdTrackInMovie)
+	m.Skip(4)         // create time
+	m.Skip(4)         // modify time
+	m.WriteUint32(id) // trackID
+	m.Skip(4)         // reserved
+	m.Skip(4)         // duration
+	m.Skip(8)         // reserved
+	m.Skip(2)         // layer
+	if width > 0 {
+		m.Skip(2)
+		m.Skip(2)
+	} else {
+		m.WriteUint16(1)  // alternate group
+		m.WriteFloat16(1) // volume
+	}
+	m.Skip(2) // reserved
+	m.WriteMatrix()
+	if width > 0 {
+		m.WriteFloat32(float64(width))
+		m.WriteFloat32(float64(height))
+	} else {
+		m.Skip(4)
+		m.Skip(4)
+	}
+	m.EndAtom()
+}
+
+func (m *Movie) WriteMediaHeader(timescale uint32) {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-32999
+	m.StartAtom(MoovTrakMdiaMdhd)
+	m.Skip(1)                // version
+	m.Skip(3)                // flags
+	m.Skip(4)                // creation time
+	m.Skip(4)                // modification time
+	m.WriteUint32(timescale) // timescale
+	m.Skip(4)                // duration
+	m.WriteUint16(0x55C4)    // language (Unspecified)
+	m.Skip(2)                // quality
+	m.EndAtom()
+}
+
+func (m *Movie) WriteMediaHandler(s, name string) {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-33004
+	m.StartAtom(MoovTrakMdiaHdlr)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4)
+	m.WriteString(s)    // handler type (4 byte!)
+	m.Skip(3 * 4)       // reserved
+	m.WriteString(name) // handler name (any len)
+	m.Skip(1)           // end string
+	m.EndAtom()
+}
+
+func (m *Movie) WriteVideoMediaInfo() {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-33012
+	m.StartAtom(MoovTrakMdiaMinfVmhd)
+	m.Skip(1)        // version
+	m.WriteUint24(1) // flags (You should always set this flag to 1)
+	m.Skip(2)        // graphics mode
+	m.Skip(3 * 2)    // op color
+	m.EndAtom()
+}
+
+func (m *Movie) WriteAudioMediaInfo() {
+	m.StartAtom(MoovTrakMdiaMinfSmhd)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4) // balance
+	m.EndAtom()
+}
+
+func (m *Movie) WriteDataInfo() {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-25680
+	m.StartAtom(MoovTrakMdiaMinfDinf)
+	m.StartAtom(MoovTrakMdiaMinfDinfDref)
+	m.Skip(1)        // version
+	m.Skip(3)        // flags
+	m.WriteUint32(1) // childrens
+
+	m.StartAtom(MoovTrakMdiaMinfDinfDrefUrl)
+	m.Skip(1)        // version
+	m.WriteUint24(1) // flags (self reference)
+	m.EndAtom()
+
+	m.EndAtom() // DREF
+	m.EndAtom() // DINF
+}
+
+func (m *Movie) WriteSampleTable(writeSampleDesc func()) {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-33040
+	m.StartAtom(MoovTrakMdiaMinfStbl)
+
+	m.StartAtom(MoovTrakMdiaMinfStblStsd)
+	m.Skip(1)        // version
+	m.Skip(3)        // flags
+	m.WriteUint32(1) // entry count
+	writeSampleDesc()
+	m.EndAtom()
+
+	m.StartAtom(MoovTrakMdiaMinfStblStts)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4) // entry count
+	m.EndAtom()
+
+	m.StartAtom(MoovTrakMdiaMinfStblStsc)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4) // entry count
+	m.EndAtom()
+
+	m.StartAtom(MoovTrakMdiaMinfStblStsz)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4) // sample size
+	m.Skip(4) // entry count
+	m.EndAtom()
+
+	m.StartAtom(MoovTrakMdiaMinfStblStco)
+	m.Skip(1) // version
+	m.Skip(3) // flags
+	m.Skip(4) // entry count
+	m.EndAtom()
+
+	m.EndAtom()
+}
+
+func (m *Movie) WriteTrackExtend(id uint32) {
+	m.StartAtom(MoovMvexTrex)
+	m.Skip(1)         // version
+	m.Skip(3)         // flags
+	m.WriteUint32(id) // trackID
+	m.WriteUint32(1)  // default sample description index
+	m.Skip(4)         // default sample duration
+	m.Skip(4)         // default sample size
+	m.Skip(4)         // default sample flags
+	m.EndAtom()
+}
+
+func (m *Movie) WriteVideoTrack(id, timescale uint32, width, height uint16, conf []byte, h264 bool) {
+	m.StartAtom(MoovTrak)
+	m.WriteTrackHeader(id, width, height)
+
+	m.StartAtom(MoovTrakMdia)
+	m.WriteMediaHeader(timescale)
+	m.WriteMediaHandler("vide", "VideoHandler")
+
+	m.StartAtom(MoovTrakMdiaMinf)
+	m.WriteVideoMediaInfo()
+	m.WriteDataInfo()
+	m.WriteSampleTable(func() {
+		m.WriteH26X(width, height, conf, h264)
+	})
+	m.EndAtom() // MINF
+
+	m.EndAtom() // MDIA
+	m.EndAtom() // TRAK
+}
+
+func (m *Movie) WriteAudioTrack(id uint32, timescale uint32, channels, sampleSize uint16, conf []byte) {
+	m.StartAtom(MoovTrak)
+	m.WriteTrackHeader(id, 0, 0)
+
+	m.StartAtom(MoovTrakMdia)
+	m.WriteMediaHeader(timescale)
+	m.WriteMediaHandler("soun", "SoundHandler")
+
+	m.StartAtom(MoovTrakMdiaMinf)
+	m.WriteAudioMediaInfo()
+	m.WriteDataInfo()
+	m.WriteSampleTable(func() {
+		m.WriteMP4A(channels, sampleSize, timescale, conf)
+	})
+	m.EndAtom() // MINF
+
+	m.EndAtom() // MDIA
+	m.EndAtom() // TRAK
+}
+
+func (m *Movie) WriteMovieFragment(seq, tid, duration, size, flags uint32, time uint64) {
+	m.StartAtom(Moof)
+
+	m.StartAtom(MoofMfhd)
+	m.Skip(1)          // version
+	m.Skip(3)          // flags
+	m.WriteUint32(seq) // sequence number
+	m.EndAtom()
+
+	m.StartAtom(MoofTraf)
+
+	const (
+		TfhdDefaultSampleDuration = 0x000008
+		TfhdDefaultSampleSize     = 0x000010
+		TfhdDefaultSampleFlags    = 0x000020
+		TfhdDefaultBaseIsMoof     = 0x020000
+	)
+
+	m.StartAtom(MoofTrafTfhd)
+	m.Skip(1) // version
+	m.WriteUint24(
+		TfhdDefaultSampleDuration |
+			TfhdDefaultSampleSize |
+			TfhdDefaultSampleFlags |
+			TfhdDefaultBaseIsMoof,
+	)
+	m.WriteUint32(tid)      // track id
+	m.WriteUint32(duration) // default sample duration
+	m.WriteUint32(size)     // default sample size
+	m.WriteUint32(flags)    // default sample flags
+	m.EndAtom()
+
+	m.StartAtom(MoofTrafTfdt)
+	m.WriteBytes(1)     // version
+	m.Skip(3)           // flags
+	m.WriteUint64(time) // base media decode time
+	m.EndAtom()
+
+	const (
+		TrunDataOffset       = 0x000001
+		TrunFirstSampleFlags = 0x000004
+		TrunSampleDuration   = 0x0000100
+		TrunSampleSize       = 0x0000200
+		TrunSampleFlags      = 0x0000400
+		TrunSampleCTS        = 0x0000800
+	)
+
+	m.StartAtom(MoofTrafTrun)
+	m.Skip(1)                     // version
+	m.WriteUint24(TrunDataOffset) // flags
+	m.WriteUint32(1)              // sample count
+	// data offset: current pos + uint32 len + MDAT header len
+	m.WriteUint32(uint32(len(m.b)) + 4 + 8)
+	m.EndAtom() // TRUN
+
+	m.EndAtom() // TRAF
+
+	m.EndAtom() // MOOF
+}
+
+func (m *Movie) WriteData(b []byte) {
+	m.StartAtom(Mdat)
+	m.Write(b)
+	m.EndAtom()
+
+}
@@ -0,0 +1,97 @@
+package mov
+
+const (
+	MoovTrakMdiaMinfStblStsdAvc1     = "avc1"
+	MoovTrakMdiaMinfStblStsdAvc1AvcC = "avcC"
+	MoovTrakMdiaMinfStblStsdHev1     = "hev1"
+	MoovTrakMdiaMinfStblStsdHev1HvcC = "hvcC"
+	MoovTrakMdiaMinfStblStsdMp4a     = "mp4a"
+)
+
+func (m *Movie) WriteH26X(width, height uint16, conf []byte, h264 bool) {
+	// https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
+	if h264 {
+		m.StartAtom(MoovTrakMdiaMinfStblStsdAvc1)
+	} else {
+		m.StartAtom(MoovTrakMdiaMinfStblStsdHev1)
+	}
+	m.Skip(6)
+	m.WriteUint16(1)      // data_reference_index
+	m.Skip(2)             // version
+	m.Skip(2)             // revision
+	m.Skip(4)             // vendor
+	m.Skip(4)             // temporal quality
+	m.Skip(4)             // spatial quality
+	m.WriteUint16(width)  // width
+	m.WriteUint16(height) // height
+	m.WriteFloat32(72)    // horizontal resolution
+	m.WriteFloat32(72)    // vertical resolution
+	m.Skip(4)             // reserved
+	m.WriteUint16(1)      // frame count
+	m.Skip(32)            // compressor name
+	m.WriteUint16(24)     // depth
+	m.WriteUint16(0xFFFF) // color table id (-1)
+
+	if h264 {
+		m.StartAtom(MoovTrakMdiaMinfStblStsdAvc1AvcC)
+	} else {
+		m.StartAtom(MoovTrakMdiaMinfStblStsdHev1HvcC)
+	}
+	m.Write(conf)
+	m.EndAtom() // AVCC
+
+	m.EndAtom() // AVC1
+}
+
+func (m *Movie) WriteMP4A(channels, sampleSize uint16, sampleRate uint32, conf []byte) {
+	m.StartAtom(MoovTrakMdiaMinfStblStsdMp4a)
+	m.Skip(6)
+	m.WriteUint16(1)                    // data_reference_index
+	m.Skip(2)                           // version
+	m.Skip(2)                           // revision
+	m.Skip(4)                           // vendor
+	m.WriteUint16(channels)             // channel_count
+	m.WriteUint16(sampleSize)           // sample_size
+	m.Skip(2)                           // compression id
+	m.Skip(2)                           // reserved
+	m.WriteFloat32(float64(sampleRate)) // sample_rate
+
+	m.WriteESDS(conf)
+
+	m.EndAtom() // MP4A
+}
+
+func (m *Movie) WriteESDS(conf []byte) {
+	m.StartAtom("esds")
+	m.Skip(1) // version
+	m.Skip(3) // flags
+
+	// MP4ESDescrTag[3]:
+	// - MP4DecConfigDescrTag[4]:
+	//   - MP4DecSpecificDescrTag[5]: conf
+	// - Other[6]
+	const header = 5
+	const size3 = 3
+	const size4 = 13
+	size5 := byte(len(conf))
+	const size6 = 1
+
+	m.WriteBytes(3, 0x80, 0x80, 0x80, size3+header+size4+header+size5+header+size6)
+	m.Skip(2) // es id
+	m.Skip(1) // es flags
+
+	m.WriteBytes(4, 0x80, 0x80, 0x80, size4+header+size5)
+	m.WriteBytes(0x40) // object id
+	m.WriteBytes(0x15) // stream type
+	m.Skip(3)          // buffer size db
+	m.Skip(4)          // max bitraga
+	m.Skip(4)          // avg bitraga
+
+	m.WriteBytes(5, 0x80, 0x80, 0x80, size5)
+	m.Write(conf)
+
+	m.WriteBytes(6, 0x80, 0x80, 0x80, 1)
+	m.WriteBytes(2) // ?
+
+	m.EndAtom() // ESDS
+}
@@ -0,0 +1,91 @@
+package mov
+
+import (
+	"encoding/binary"
+	"math"
+)
+
+type Movie struct {
+	b     []byte
+	start []int
+}
+
+func NewMovie(size int) *Movie {
+	return &Movie{b: make([]byte, 0, size)}
+}
+
+func (m *Movie) Bytes() []byte {
+	return m.b
+}
+
+func (m *Movie) StartAtom(name string) {
+	m.start = append(m.start, len(m.b))
+	m.b = append(m.b, 0, 0, 0, 0)
+	m.b = append(m.b, name...)
+}
+
+func (m *Movie) EndAtom() {
+	n := len(m.start) - 1
+
+	i := m.start[n]
+	size := uint32(len(m.b) - i)
+	binary.BigEndian.PutUint32(m.b[i:], size)
+
+	m.start = m.start[:n]
+}
+
+func (m *Movie) Write(b []byte) {
+	m.b = append(m.b, b...)
+}
+
+func (m *Movie) WriteBytes(b ...byte) {
+	m.b = append(m.b, b...)
+}
+
+func (m *Movie) WriteString(s string) {
+	m.b = append(m.b, s...)
+}
+
+func (m *Movie) Skip(n int) {
+	m.b = append(m.b, make([]byte, n)...)
+}
+
+func (m *Movie) WriteUint16(v uint16) {
+	m.b = append(m.b, byte(v>>8), byte(v))
+}
+
+func (m *Movie) WriteUint24(v uint32) {
+	m.b = append(m.b, byte(v>>16), byte(v>>8), byte(v))
+}
+
+func (m *Movie) WriteUint32(v uint32) {
+	m.b = append(m.b, byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
+}
+
+func (m *Movie) WriteUint64(v uint64) {
+	m.b = append(m.b, byte(v>>56), byte(v>>48), byte(v>>40), byte(v>>32), byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
+}
+
+func (m *Movie) WriteFloat16(f float64) {
+	i, f := math.Modf(f)
+	f *= 256
+	m.b = append(m.b, byte(i), byte(f))
+}
+
+func (m *Movie) WriteFloat32(f float64) {
+	i, f := math.Modf(f)
+	f *= 65536
+	m.b = append(m.b, byte(uint16(i)>>8), byte(i), byte(uint16(f)>>8), byte(f))
+}
+
+func (m *Movie) WriteMatrix() {
+	m.WriteUint32(0x00010000)
+	m.Skip(4)
+	m.Skip(4)
+	m.Skip(4)
+	m.WriteUint32(0x00010000)
+	m.Skip(4)
+	m.Skip(4)
+	m.Skip(4)
+	m.WriteUint32(0x40000000)
+}
@@ -1,19 +1,30 @@
+## Fragmented MP4
+
+```
+ffmpeg -i "rtsp://..." -movflags +frag_keyframe+separate_moof+default_base_moof+empty_moov -frag_duration 1 -c copy -t 5 sample.mp4
+```
+
+- movflags frag_keyframe 
+  Start a new fragment at each video keyframe.
+- frag_duration duration
+  Create fragments that are duration microseconds long.
+- movflags separate_moof
+  Write a separate moof (movie fragment) atom for each track.
+- movflags default_base_moof
+  Similarly to the omit_tfhd_offset, this flag avoids writing the absolute base_data_offset field in tfhd atoms, but does so by using the new default-base-is-moof flag instead.
+
+https://ffmpeg.org/ffmpeg-formats.html#Options-13
+
 ## HEVC

-Browser     | avc1 | hvc1 | hev1
------------|------|------|---
-Mac Chrome  | +    | -    | +
-Mac Safari  | +    | +    | -
-iOS 15?     | +    | +    | -
-Mac Firefox | +    | -    | -
-iOS 12      | +    | -    | -
-Android 13  | +    | -    | -
-
-```
-ffmpeg -i input-hev1.mp4 -c:v copy -tag:v hvc1 -c:a copy output-hvc1.mp4
-Stream #0:0(eng): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive), 720x404, 164 kb/s, 29.97 fps,
-Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, progressive), 720x404, 164 kb/s, 29.97 fps,
-```
+| Browser     | avc1 | hvc1 | hev1 |
+|-------------|------|------|------|
+ | Mac Chrome  | +    | -    | +    |
+ | Mac Safari  | +    | +    | -    |
+ | iOS 15?     | +    | +    | -    |
+ | Mac Firefox | +    | -    | -    |
+ | iOS 12      | +    | -    | -    |
+ | Android 13  | +    | -    | -    |

 ## Useful links

@@ -1,22 +1,19 @@
 package mp4

 import (
-	"encoding/binary"
 	"encoding/hex"
 	"github.com/AlexxIT/go2rtc/pkg/h264"
 	"github.com/AlexxIT/go2rtc/pkg/h265"
+	"github.com/AlexxIT/go2rtc/pkg/mov"
 	"github.com/AlexxIT/go2rtc/pkg/streamer"
-	"github.com/deepch/vdk/av"
 	"github.com/deepch/vdk/codec/h264parser"
 	"github.com/deepch/vdk/codec/h265parser"
-	"github.com/deepch/vdk/format/fmp4/fmp4io"
-	"github.com/deepch/vdk/format/mp4/mp4io"
-	"github.com/deepch/vdk/format/mp4f/mp4fio"
 	"github.com/pion/rtp"
 )

 type Muxer struct {
 	fragIndex uint32
+	flags     []uint32
 	dts       []uint64
 	pts       []uint32
 }
@@ -45,7 +42,11 @@ func (m *Muxer) MimeType(codecs []*streamer.Codec) string {
 }

 func (m *Muxer) GetInit(codecs []*streamer.Codec) ([]byte, error) {
-	moov := MOOV()
+	mv := mov.NewMovie(1024)
+	mv.WriteFileType()
+
+	mv.StartAtom(mov.Moov)
+	mv.WriteMovieHeader()

 	for i, codec := range codecs {
 		switch codec.Name {
@@ -62,35 +63,13 @@ func (m *Muxer) GetInit(codecs []*streamer.Codec) ([]byte, error) {
 				return nil, err
 			}

-			width := codecData.Width()
-			height := codecData.Height()
+			mv.WriteVideoTrack(
+				uint32(i+1), codec.ClockRate,
+				uint16(codecData.Width()), uint16(codecData.Height()),
+				codecData.AVCDecoderConfRecordBytes(), true,
+			)

-			trak := TRAK(i + 1)
-			trak.Header.TrackWidth = float64(width)
-			trak.Header.TrackHeight = float64(height)
-			trak.Media.Header.TimeScale = int32(codec.ClockRate)
-			trak.Media.Handler = &mp4io.HandlerRefer{
-				SubType: [4]byte{'v', 'i', 'd', 'e'},
-				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
-			}
-			trak.Media.Info.Video = &mp4io.VideoMediaInfo{
-				Flags: 0x000001,
-			}
-			trak.Media.Info.Sample.SampleDesc.AVC1Desc = &mp4io.AVC1Desc{
-				DataRefIdx:           1,
-				HorizontalResolution: 72,
-				VorizontalResolution: 72,
-				Width:                int16(width),
-				Height:               int16(height),
-				FrameCount:           1,
-				Depth:                24,
-				ColorTableId:         -1,
-				Conf: &mp4io.AVC1Conf{
-					Data: codecData.AVCDecoderConfRecordBytes(),
-				},
-			}
-
-			moov.Tracks = append(moov.Tracks, trak)
+			m.flags = append(m.flags, 0x1010000)

 		case streamer.CodecH265:
 			vps, sps, pps := h265.GetParameterSet(codec.FmtpLine)
@@ -106,35 +85,13 @@ func (m *Muxer) GetInit(codecs []*streamer.Codec) ([]byte, error) {
 				return nil, err
 			}

-			width := codecData.Width()
-			height := codecData.Height()
+			mv.WriteVideoTrack(
+				uint32(i+1), codec.ClockRate,
+				uint16(codecData.Width()), uint16(codecData.Height()),
+				codecData.AVCDecoderConfRecordBytes(), false,
+			)

-			trak := TRAK(i + 1)
-			trak.Header.TrackWidth = float64(width)
-			trak.Header.TrackHeight = float64(height)
-			trak.Media.Header.TimeScale = int32(codec.ClockRate)
-			trak.Media.Handler = &mp4io.HandlerRefer{
-				SubType: [4]byte{'v', 'i', 'd', 'e'},
-				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
-			}
-			trak.Media.Info.Video = &mp4io.VideoMediaInfo{
-				Flags: 0x000001,
-			}
-			trak.Media.Info.Sample.SampleDesc.HV1Desc = &mp4io.HV1Desc{
-				DataRefIdx:           1,
-				HorizontalResolution: 72,
-				VorizontalResolution: 72,
-				Width:                int16(width),
-				Height:               int16(height),
-				FrameCount:           1,
-				Depth:                24,
-				ColorTableId:         -1,
-				Conf: &mp4io.HV1Conf{
-					Data: codecData.AVCDecoderConfRecordBytes(),
-				},
-			}
-
-			moov.Tracks = append(moov.Tracks, trak)
+			m.flags = append(m.flags, 0x1010000)

 		case streamer.CodecAAC:
 			s := streamer.Between(codec.FmtpLine, "config=", ";")
@@ -143,44 +100,26 @@ func (m *Muxer) GetInit(codecs []*streamer.Codec) ([]byte, error) {
 				return nil, err
 			}

-			trak := TRAK(i + 1)
-			trak.Header.AlternateGroup = 1
-			trak.Header.Duration = 0
-			trak.Header.Volume = 1
-			trak.Media.Header.TimeScale = int32(codec.ClockRate)
+			mv.WriteAudioTrack(
+				uint32(i+1), codec.ClockRate, codec.Channels, 16, b,
+			)

-			trak.Media.Handler = &mp4io.HandlerRefer{
-				SubType: [4]byte{'s', 'o', 'u', 'n'},
-				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
-			}
-			trak.Media.Info.Sound = &mp4io.SoundMediaInfo{}
-
-			trak.Media.Info.Sample.SampleDesc.MP4ADesc = &mp4io.MP4ADesc{
-				DataRefIdx:       1,
-				NumberOfChannels: int16(codec.Channels),
-				SampleSize:       int16(av.FLTP.BytesPerSample() * 4),
-				SampleRate:       float64(codec.ClockRate),
-				Unknowns:         []mp4io.Atom{ESDS(b)},
-			}
-
-			moov.Tracks = append(moov.Tracks, trak)
+			m.flags = append(m.flags, 0x2000000)
 		}

-		trex := &mp4io.TrackExtend{
-			TrackId:               uint32(i + 1),
-			DefaultSampleDescIdx:  1,
-			DefaultSampleDuration: 0,
-		}
-		moov.MovieExtend.Tracks = append(moov.MovieExtend.Tracks, trex)
-
 		m.pts = append(m.pts, 0)
 		m.dts = append(m.dts, 0)
 	}

-	data := make([]byte, moov.Len())
-	moov.Marshal(data)
+	mv.StartAtom(mov.MoovMvex)
+	for i := range codecs {
+		mv.WriteTrackExtend(uint32(i + 1))
+	}
+	mv.EndAtom() // MVEX

-	return append(FTYP(), data...), nil
+	mv.EndAtom() // MOOV
+
+	return mv.Bytes(), nil
 }

 func (m *Muxer) Reset() {
@@ -192,65 +131,29 @@ func (m *Muxer) Reset() {
 }

 func (m *Muxer) Marshal(trackID byte, packet *rtp.Packet) []byte {
-	run := &mp4fio.TrackFragRun{
-		Flags:            0x000b05,
-		FirstSampleFlags: uint32(fmp4io.SampleNoDependencies),
-		DataOffset:       0,
-		Entries:          []mp4io.TrackFragRunEntry{},
-	}
-
-	moof := &mp4fio.MovieFrag{
-		Header: &mp4fio.MovieFragHeader{
-			Seqnum: m.fragIndex + 1,
-		},
-		Tracks: []*mp4fio.TrackFrag{
-			{
-				Header: &mp4fio.TrackFragHeader{
-					Data: []byte{0x00, 0x02, 0x00, 0x20, 0x00, 0x00, 0x00, trackID + 1, 0x01, 0x01, 0x00, 0x00},
-				},
-				DecodeTime: &mp4fio.TrackFragDecodeTime{
-					Version: 1,
-					Flags:   0,
-					Time:    m.dts[trackID],
-				},
-				Run: run,
-			},
-		},
-	}
-
-	entry := mp4io.TrackFragRunEntry{
-		Size: uint32(len(packet.Payload)),
-	}
-
-	newTime := packet.Timestamp
-	if m.pts[trackID] > 0 {
-		entry.Duration = newTime - m.pts[trackID]
-		m.dts[trackID] += uint64(entry.Duration)
-	} else {
-		// important, or Safari will fail with first frame
-		entry.Duration = 1
-	}
-	m.pts[trackID] = newTime
-
-	// important before moof.Len()
-	run.Entries = append(run.Entries, entry)
-
-	moofLen := moof.Len()
-	mdatLen := 8 + len(packet.Payload)
-
-	// important after moof.Len()
-	run.DataOffset = uint32(moofLen + 8)
-
-	buf := make([]byte, moofLen+mdatLen)
-	moof.Marshal(buf)
-
-	binary.BigEndian.PutUint32(buf[moofLen:], uint32(mdatLen))
-	copy(buf[moofLen+4:], "mdat")
-	copy(buf[moofLen+8:], packet.Payload)
+	// important before increment
+	time := m.dts[trackID]

 	m.fragIndex++

-	//m.total += moofLen + mdatLen
+	var duration uint32
+	newTime := packet.Timestamp
+	if m.pts[trackID] > 0 {
+		duration = newTime - m.pts[trackID]
+		m.dts[trackID] += uint64(duration)
+	} else {
+		// important, or Safari will fail with first frame
+		duration = 1
+	}
+	m.pts[trackID] = newTime

-	return buf
+	mv := mov.NewMovie(1024 + len(packet.Payload))
+	mv.WriteMovieFragment(
+		m.fragIndex, uint32(trackID+1), duration,
+		uint32(len(packet.Payload)),
+		m.flags[trackID], time,
+	)
+	mv.WriteData(packet.Payload)
+
+	return mv.Bytes()
 }
@@ -1,4 +1,4 @@
-package mp4f
+package mp4

 import (
 	"github.com/AlexxIT/go2rtc/pkg/h264"
@@ -0,0 +1,174 @@
+package mp4
+
+import (
+	"encoding/json"
+	"github.com/AlexxIT/go2rtc/pkg/aac"
+	"github.com/AlexxIT/go2rtc/pkg/h264"
+	"github.com/AlexxIT/go2rtc/pkg/h265"
+	"github.com/AlexxIT/go2rtc/pkg/streamer"
+	"github.com/pion/rtp"
+	"sync/atomic"
+)
+
+type Consumer struct {
+	streamer.Element
+
+	Medias     []*streamer.Media
+	UserAgent  string
+	RemoteAddr string
+
+	muxer  *Muxer
+	codecs []*streamer.Codec
+	wait   byte
+
+	send uint32
+}
+
+const (
+	waitNone byte = iota
+	waitKeyframe
+	waitInit
+)
+
+func (c *Consumer) GetMedias() []*streamer.Media {
+	if c.Medias != nil {
+		return c.Medias
+	}
+
+	// default medias
+	return []*streamer.Media{
+		{
+			Kind:      streamer.KindVideo,
+			Direction: streamer.DirectionRecvonly,
+			Codecs: []*streamer.Codec{
+				{Name: streamer.CodecH264},
+				{Name: streamer.CodecH265},
+			},
+		},
+		{
+			Kind:      streamer.KindAudio,
+			Direction: streamer.DirectionRecvonly,
+			Codecs: []*streamer.Codec{
+				{Name: streamer.CodecAAC},
+			},
+		},
+	}
+}
+
+func (c *Consumer) AddTrack(media *streamer.Media, track *streamer.Track) *streamer.Track {
+	trackID := byte(len(c.codecs))
+	c.codecs = append(c.codecs, track.Codec)
+
+	codec := track.Codec
+	switch codec.Name {
+	case streamer.CodecH264:
+		c.wait = waitInit
+
+		push := func(packet *rtp.Packet) error {
+			if packet.Version != h264.RTPPacketVersionAVC {
+				return nil
+			}
+
+			if c.wait != waitNone {
+				if c.wait == waitInit || !h264.IsKeyframe(packet.Payload) {
+					return nil
+				}
+				c.wait = waitNone
+			}
+
+			buf := c.muxer.Marshal(trackID, packet)
+			atomic.AddUint32(&c.send, uint32(len(buf)))
+			c.Fire(buf)
+
+			return nil
+		}
+
+		var wrapper streamer.WrapperFunc
+		if codec.IsRTP() {
+			wrapper = h264.RTPDepay(track)
+		} else {
+			wrapper = h264.RepairAVC(track)
+		}
+		push = wrapper(push)
+
+		return track.Bind(push)
+
+	case streamer.CodecH265:
+		c.wait = waitInit
+
+		push := func(packet *rtp.Packet) error {
+			if packet.Version != h264.RTPPacketVersionAVC {
+				return nil
+			}
+
+			if c.wait != waitNone {
+				if c.wait == waitInit || !h265.IsKeyframe(packet.Payload) {
+					return nil
+				}
+				c.wait = waitNone
+			}
+
+			buf := c.muxer.Marshal(trackID, packet)
+			atomic.AddUint32(&c.send, uint32(len(buf)))
+			c.Fire(buf)
+
+			return nil
+		}
+
+		if codec.IsRTP() {
+			wrapper := h265.RTPDepay(track)
+			push = wrapper(push)
+		}
+
+		return track.Bind(push)
+
+	case streamer.CodecAAC:
+		push := func(packet *rtp.Packet) error {
+			if c.wait != waitNone {
+				return nil
+			}
+
+			buf := c.muxer.Marshal(trackID, packet)
+			atomic.AddUint32(&c.send, uint32(len(buf)))
+			c.Fire(buf)
+
+			return nil
+		}
+
+		if codec.IsRTP() {
+			wrapper := aac.RTPDepay(track)
+			push = wrapper(push)
+		}
+
+		return track.Bind(push)
+	}
+
+	panic("unsupported codec")
+}
+
+func (c *Consumer) MimeType() string {
+	return c.muxer.MimeType(c.codecs)
+}
+
+func (c *Consumer) Init() ([]byte, error) {
+	c.muxer = &Muxer{}
+	return c.muxer.GetInit(c.codecs)
+}
+
+func (c *Consumer) Start() {
+	if c.wait == waitInit {
+		c.wait = waitKeyframe
+	}
+}
+
+//
+
+func (c *Consumer) MarshalJSON() ([]byte, error) {
+	info := &streamer.Info{
+		Type:       "MP4 client",
+		RemoteAddr: c.RemoteAddr,
+		UserAgent:  c.UserAgent,
+		Send:       atomic.LoadUint32(&c.send),
+	}
+	return json.Marshal(info)
+}
@@ -0,0 +1,256 @@
+package mp4
+
+import (
+	"encoding/binary"
+	"encoding/hex"
+	"github.com/AlexxIT/go2rtc/pkg/h264"
+	"github.com/AlexxIT/go2rtc/pkg/h265"
+	"github.com/AlexxIT/go2rtc/pkg/streamer"
+	"github.com/deepch/vdk/av"
+	"github.com/deepch/vdk/codec/h264parser"
+	"github.com/deepch/vdk/codec/h265parser"
+	"github.com/deepch/vdk/format/fmp4/fmp4io"
+	"github.com/deepch/vdk/format/mp4/mp4io"
+	"github.com/deepch/vdk/format/mp4f/mp4fio"
+	"github.com/pion/rtp"
+)
+
+type Muxer struct {
+	fragIndex uint32
+	dts       []uint64
+	pts       []uint32
+}
+
+func (m *Muxer) MimeType(codecs []*streamer.Codec) string {
+	s := `video/mp4; codecs="`
+
+	for i, codec := range codecs {
+		if i > 0 {
+			s += ","
+		}
+
+		switch codec.Name {
+		case streamer.CodecH264:
+			s += "avc1." + h264.GetProfileLevelID(codec.FmtpLine)
+		case streamer.CodecH265:
+			// H.265 profile=main level=5.1
+			// hvc1 - supported in Safari, hev1 - doesn't, both supported in Chrome
+			s += "hvc1.1.6.L153.B0"
+		case streamer.CodecAAC:
+			s += "mp4a.40.2"
+		}
+	}
+
+	return s + `"`
+}
+
+func (m *Muxer) GetInit(codecs []*streamer.Codec) ([]byte, error) {
+	moov := MOOV()
+
+	for i, codec := range codecs {
+		switch codec.Name {
+		case streamer.CodecH264:
+			sps, pps := h264.GetParameterSet(codec.FmtpLine)
+			if sps == nil {
+				// some dummy SPS and PPS not a problem
+				sps = []byte{0x67, 0x42, 0x00, 0x0a, 0xf8, 0x41, 0xa2}
+				pps = []byte{0x68, 0xce, 0x38, 0x80}
+			}
+
+			codecData, err := h264parser.NewCodecDataFromSPSAndPPS(sps, pps)
+			if err != nil {
+				return nil, err
+			}
+
+			width := codecData.Width()
+			height := codecData.Height()
+
+			trak := TRAK(i + 1)
+			trak.Header.TrackWidth = float64(width)
+			trak.Header.TrackHeight = float64(height)
+			trak.Media.Header.TimeScale = int32(codec.ClockRate)
+			trak.Media.Handler = &mp4io.HandlerRefer{
+				SubType: [4]byte{'v', 'i', 'd', 'e'},
+				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
+			}
+			trak.Media.Info.Video = &mp4io.VideoMediaInfo{
+				Flags: 0x000001,
+			}
+			trak.Media.Info.Sample.SampleDesc.AVC1Desc = &mp4io.AVC1Desc{
+				DataRefIdx:           1,
+				HorizontalResolution: 72,
+				VorizontalResolution: 72,
+				Width:                int16(width),
+				Height:               int16(height),
+				FrameCount:           1,
+				Depth:                24,
+				ColorTableId:         -1,
+				Conf: &mp4io.AVC1Conf{
+					Data: codecData.AVCDecoderConfRecordBytes(),
+				},
+			}
+
+			moov.Tracks = append(moov.Tracks, trak)
+
+		case streamer.CodecH265:
+			vps, sps, pps := h265.GetParameterSet(codec.FmtpLine)
+			if sps == nil {
+				// some dummy SPS and PPS not a problem
+				vps = []byte{0x40, 0x01, 0x0c, 0x01, 0xff, 0xff, 0x01, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x99, 0xac, 0x09}
+				sps = []byte{0x42, 0x01, 0x01, 0x01, 0x40, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x03, 0x00, 0x99, 0xa0, 0x01, 0x40, 0x20, 0x05, 0xa1, 0xfe, 0x5a, 0xee, 0x46, 0xc1, 0xae, 0x55, 0x04}
+				pps = []byte{0x44, 0x01, 0xc0, 0x73, 0xc0, 0x4c, 0x90}
+			}
+
+			codecData, err := h265parser.NewCodecDataFromVPSAndSPSAndPPS(vps, sps, pps)
+			if err != nil {
+				return nil, err
+			}
+
+			width := codecData.Width()
+			height := codecData.Height()
+
+			trak := TRAK(i + 1)
+			trak.Header.TrackWidth = float64(width)
+			trak.Header.TrackHeight = float64(height)
+			trak.Media.Header.TimeScale = int32(codec.ClockRate)
+			trak.Media.Handler = &mp4io.HandlerRefer{
+				SubType: [4]byte{'v', 'i', 'd', 'e'},
+				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
+			}
+			trak.Media.Info.Video = &mp4io.VideoMediaInfo{
+				Flags: 0x000001,
+			}
+			trak.Media.Info.Sample.SampleDesc.HV1Desc = &mp4io.HV1Desc{
+				DataRefIdx:           1,
+				HorizontalResolution: 72,
+				VorizontalResolution: 72,
+				Width:                int16(width),
+				Height:               int16(height),
+				FrameCount:           1,
+				Depth:                24,
+				ColorTableId:         -1,
+				Conf: &mp4io.HV1Conf{
+					Data: codecData.AVCDecoderConfRecordBytes(),
+				},
+			}
+
+			moov.Tracks = append(moov.Tracks, trak)
+
+		case streamer.CodecAAC:
+			s := streamer.Between(codec.FmtpLine, "config=", ";")
+			b, err := hex.DecodeString(s)
+			if err != nil {
+				return nil, err
+			}
+
+			trak := TRAK(i + 1)
+			trak.Header.AlternateGroup = 1
+			trak.Header.Duration = 0
+			trak.Header.Volume = 1
+			trak.Media.Header.TimeScale = int32(codec.ClockRate)
+
+			trak.Media.Handler = &mp4io.HandlerRefer{
+				SubType: [4]byte{'s', 'o', 'u', 'n'},
+				Name:    []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'm', 'a', 'i', 'n', 0},
+			}
+			trak.Media.Info.Sound = &mp4io.SoundMediaInfo{}
+
+			trak.Media.Info.Sample.SampleDesc.MP4ADesc = &mp4io.MP4ADesc{
+				DataRefIdx:       1,
+				NumberOfChannels: int16(codec.Channels),
+				SampleSize:       int16(av.FLTP.BytesPerSample() * 4),
+				SampleRate:       float64(codec.ClockRate),
+				Unknowns:         []mp4io.Atom{ESDS(b)},
+			}
+
+			moov.Tracks = append(moov.Tracks, trak)
+		}
+
+		trex := &mp4io.TrackExtend{
+			TrackId:               uint32(i + 1),
+			DefaultSampleDescIdx:  1,
+			DefaultSampleDuration: 0,
+		}
+		moov.MovieExtend.Tracks = append(moov.MovieExtend.Tracks, trex)
+
+		m.pts = append(m.pts, 0)
+		m.dts = append(m.dts, 0)
+	}
+
+	data := make([]byte, moov.Len())
+	moov.Marshal(data)
+
+	return append(FTYP(), data...), nil
+}
+
+func (m *Muxer) Reset() {
+	m.fragIndex = 0
+	for i := range m.dts {
+		m.dts[i] = 0
+		m.pts[i] = 0
+	}
+}
+
+func (m *Muxer) Marshal(trackID byte, packet *rtp.Packet) []byte {
+	run := &mp4fio.TrackFragRun{
+		Flags:            0x000b05,
+		FirstSampleFlags: uint32(fmp4io.SampleNoDependencies),
+		DataOffset:       0,
+		Entries:          []mp4io.TrackFragRunEntry{},
+	}
+
+	moof := &mp4fio.MovieFrag{
+		Header: &mp4fio.MovieFragHeader{
+			Seqnum: m.fragIndex + 1,
+		},
+		Tracks: []*mp4fio.TrackFrag{
+			{
+				Header: &mp4fio.TrackFragHeader{
+					Data: []byte{0x00, 0x02, 0x00, 0x20, 0x00, 0x00, 0x00, trackID + 1, 0x01, 0x01, 0x00, 0x00},
+				},
+				DecodeTime: &mp4fio.TrackFragDecodeTime{
+					Version: 1,
+					Flags:   0,
+					Time:    m.dts[trackID],
+				},
+				Run: run,
+			},
+		},
+	}
+
+	entry := mp4io.TrackFragRunEntry{
+		Size: uint32(len(packet.Payload)),
+	}
+
+	newTime := packet.Timestamp
+	if m.pts[trackID] > 0 {
+		entry.Duration = newTime - m.pts[trackID]
+		m.dts[trackID] += uint64(entry.Duration)
+	} else {
+		// important, or Safari will fail with first frame
+		entry.Duration = 1
+	}
+	m.pts[trackID] = newTime
+
+	// important before moof.Len()
+	run.Entries = append(run.Entries, entry)
+
+	moofLen := moof.Len()
+	mdatLen := 8 + len(packet.Payload)
+
+	// important after moof.Len()
+	run.DataOffset = uint32(moofLen + 8)
+
+	buf := make([]byte, moofLen+mdatLen)
+	moof.Marshal(buf)
+
+	binary.BigEndian.PutUint32(buf[moofLen:], uint32(mdatLen))
+	copy(buf[moofLen+4:], "mdat")
+	copy(buf[moofLen+8:], packet.Payload)
+
+	m.fragIndex++
+
+	//m.total += moofLen + mdatLen
+
+	return buf
+}
@@ -0,0 +1,143 @@
+package mp4
+
+import (
+	"encoding/json"
+	"github.com/AlexxIT/go2rtc/pkg/h264"
+	"github.com/AlexxIT/go2rtc/pkg/h265"
+	"github.com/AlexxIT/go2rtc/pkg/streamer"
+	"github.com/pion/rtp"
+	"sync/atomic"
+)
+
+type Segment struct {
+	streamer.Element
+
+	Medias     []*streamer.Media
+	UserAgent  string
+	RemoteAddr string
+
+	MimeType     string
+	OnlyKeyframe bool
+
+	send uint32
+}
+
+func (c *Segment) GetMedias() []*streamer.Media {
+	if c.Medias != nil {
+		return c.Medias
+	}
+
+	// default medias
+	return []*streamer.Media{
+		{
+			Kind:      streamer.KindVideo,
+			Direction: streamer.DirectionRecvonly,
+			Codecs: []*streamer.Codec{
+				{Name: streamer.CodecH264},
+				{Name: streamer.CodecH265},
+			},
+		},
+	}
+}
+
+func (c *Segment) AddTrack(media *streamer.Media, track *streamer.Track) *streamer.Track {
+	muxer := &Muxer{}
+
+	codecs := []*streamer.Codec{track.Codec}
+
+	init, err := muxer.GetInit(codecs)
+	if err != nil {
+		return nil
+	}
+
+	c.MimeType = muxer.MimeType(codecs)
+
+	switch track.Codec.Name {
+	case streamer.CodecH264:
+		var push streamer.WriterFunc
+
+		if c.OnlyKeyframe {
+			push = func(packet *rtp.Packet) error {
+				if !h264.IsKeyframe(packet.Payload) {
+					return nil
+				}
+
+				buf := muxer.Marshal(0, packet)
+				atomic.AddUint32(&c.send, uint32(len(buf)))
+				c.Fire(append(init, buf...))
+
+				return nil
+			}
+		} else {
+			var buf []byte
+
+			push = func(packet *rtp.Packet) error {
+				if h264.IsKeyframe(packet.Payload) {
+					// fist frame - send only IFrame
+					// other frames - send IFrame and all PFrames
+					if buf == nil {
+						buf = append(buf, init...)
+						b := muxer.Marshal(0, packet)
+						buf = append(buf, b...)
+					}
+
+					atomic.AddUint32(&c.send, uint32(len(buf)))
+					c.Fire(buf)
+
+					buf = buf[:0]
+					buf = append(buf, init...)
+					muxer.Reset()
+				}
+
+				if buf != nil {
+					b := muxer.Marshal(0, packet)
+					buf = append(buf, b...)
+				}
+
+				return nil
+			}
+		}
+
+		var wrapper streamer.WrapperFunc
+		if track.Codec.IsRTP() {
+			wrapper = h264.RTPDepay(track)
+		} else {
+			wrapper = h264.RepairAVC(track)
+		}
+		push = wrapper(push)
+
+		return track.Bind(push)
+
+	case streamer.CodecH265:
+		push := func(packet *rtp.Packet) error {
+			if !h265.IsKeyframe(packet.Payload) {
+				return nil
+			}
+
+			buf := muxer.Marshal(0, packet)
+			atomic.AddUint32(&c.send, uint32(len(buf)))
+			c.Fire(append(init, buf...))
+
+			return nil
+		}
+
+		if track.Codec.IsRTP() {
+			wrapper := h265.RTPDepay(track)
+			push = wrapper(push)
+		}
+
+		return track.Bind(push)
+	}
+
+	panic("unsupported codec")
+}
+
+func (c *Segment) MarshalJSON() ([]byte, error) {
+	info := &streamer.Info{
+		Type:       "WS/MP4 client",
+		RemoteAddr: c.RemoteAddr,
+		UserAgent:  c.UserAgent,
+		Send:       atomic.LoadUint32(&c.send),
+	}
+	return json.Marshal(info)
+}