/
File.go
101 lines (97 loc) · 2.15 KB
/
File.go
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package sofia
import (
"errors"
"io"
)
// ISO/IEC 14496-12
type File struct {
Boxes []Box
MediaData *MediaData
Movie *Movie
MovieFragment *MovieFragment
SegmentIndex *SegmentIndex
}
func (f *File) Read(r io.Reader) error {
for {
var head BoxHeader
err := head.read(r)
if err == io.EOF {
return nil
} else if err != nil {
return err
}
_, size := head.get_size()
switch head.debug() {
case "mdat":
f.MediaData = new(MediaData)
f.MediaData.Box.BoxHeader = head
err := f.MediaData.read(r)
if err != nil {
return err
}
case "moof":
f.MovieFragment = &MovieFragment{BoxHeader: head}
err := f.MovieFragment.read(r, size)
if err != nil {
return err
}
case "sidx":
f.SegmentIndex = &SegmentIndex{BoxHeader: head}
err := f.SegmentIndex.read(r)
if err != nil {
return err
}
case "moov":
f.Movie = &Movie{BoxHeader: head}
err := f.Movie.read(r, size)
if err != nil {
return err
}
case "free", // Mubi
"ftyp", // Roku
"styp": // Roku
b := Box{BoxHeader: head}
err := b.read(r)
if err != nil {
return err
}
f.Boxes = append(f.Boxes, b)
default:
return errors.New("File.Read")
}
}
}
func (f File) Write(w io.Writer) error {
// KEEP THESE IN ORDER
for _, value := range f.Boxes {
err := value.write(w)
if err != nil {
return err
}
}
if f.Movie != nil { // moov
err := f.Movie.write(w)
if err != nil {
return err
}
}
if f.SegmentIndex != nil { // sidx
err := f.SegmentIndex.write(w)
if err != nil {
return err
}
}
if f.MovieFragment != nil { // moof
err := f.MovieFragment.write(w)
if err != nil {
return err
}
}
if f.MediaData != nil { // mdat
err := f.MediaData.write(w)
if err != nil {
return err
}
}
return nil
}