test dvrip

format/mp4m/mp4io/atoms.go

@@ -3820,3 +3820,103 @@ func (self *TrackFragDecodeTime) Unmarshal(b []byte, offset int) (n int, err err
 func (self TrackFragDecodeTime) Children() (r []Atom) {
 	return
 }
+
+const FTYP = Tag(0x66747970)
+
+type FileType struct {
+	MajorBrand       uint32
+	MinorVersion     uint32
+	CompatibleBrands []uint32
+	AtomPos
+}
+
+func (t FileType) Tag() Tag {
+	return FTYP
+}
+
+func (f FileType) Marshal(b []byte) (n int) {
+	l := 16 + 4*len(f.CompatibleBrands)
+	pio.PutU32BE(b, uint32(l))
+	pio.PutU32BE(b[4:], uint32(FTYP))
+	pio.PutU32BE(b[8:], f.MajorBrand)
+	pio.PutU32BE(b[12:], f.MinorVersion)
+	for i, v := range f.CompatibleBrands {
+		pio.PutU32BE(b[16+4*i:], v)
+	}
+	return l
+}
+
+func (f FileType) Len() int {
+	return 16 + 4*len(f.CompatibleBrands)
+}
+
+func (f *FileType) Unmarshal(b []byte, offset int) (n int, err error) {
+	f.AtomPos.setPos(offset, len(b))
+	n = 8
+	if len(b) < n+8 {
+		return 0, parseErr("MajorBrand", offset+n, nil)
+	}
+	f.MajorBrand = pio.U32BE(b[n:])
+	n += 4
+	f.MinorVersion = pio.U32BE(b[n:])
+	n += 4
+	for n < len(b)-3 {
+		f.CompatibleBrands = append(f.CompatibleBrands, pio.U32BE(b[n:]))
+		n += 4
+	}
+	return
+}
+
+func (f FileType) Children() []Atom {
+	return nil
+}
+
+const STYP = Tag(0x73747970)
+
+type SegmentType struct {
+	MajorBrand       uint32
+	MinorVersion     uint32
+	CompatibleBrands []uint32
+	AtomPos
+}
+
+func (t SegmentType) Tag() Tag {
+	return STYP
+}
+
+func (f SegmentType) Marshal(b []byte) (n int) {
+	l := 16 + 4*len(f.CompatibleBrands)
+	pio.PutU32BE(b, uint32(l))
+	pio.PutU32BE(b[4:], uint32(STYP))
+	pio.PutU32BE(b[8:], f.MajorBrand)
+	pio.PutU32BE(b[12:], f.MinorVersion)
+	for i, v := range f.CompatibleBrands {
+		pio.PutU32BE(b[16+4*i:], v)
+	}
+	return l
+}
+
+func (f SegmentType) Len() int {
+	return 16 + 4*len(f.CompatibleBrands)
+}
+
+func (f *SegmentType) Unmarshal(b []byte, offset int) (n int, err error) {
+	f.AtomPos.setPos(offset, len(b))
+	n = 8
+	if len(b) < n+8 {
+		return 0, parseErr("MajorBrand", offset+n, nil)
+	}
+	f.MajorBrand = pio.U32BE(b[n:])
+	n += 4
+	f.MinorVersion = pio.U32BE(b[n:])
+	n += 4
+	for n < len(b)-3 {
+		f.CompatibleBrands = append(f.CompatibleBrands, pio.U32BE(b[n:]))
+		n += 4
+	}
+	return
+}
+
+func (f SegmentType) Children() []Atom {
+	return nil
+}