func mdhdRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Offset = offset
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
IsFullBox = false
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.
MdhdAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
AllBytes = buf
err = fp.Mp4Seek(offset+8, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, err = fp.Mp4Read(1)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Version = uint8(size[0])
size, err = fp.Mp4Read(3)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Flag = util.Byte32Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
CreationTime = util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
ModificationTime = util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Timescale = util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Duration = util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Language = util.Byte22Uint16(size, 0)
/*
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MdhdAtomInstance.
Quality = util.Bytes2Int(size)
*/
return nil
}
func stsdRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.Offset = offset
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.IsFullBox = false
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.AllBytes = buf
err = fp.Mp4Seek(offset+8, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, err = fp.Mp4Read(1)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.Version = uint8(size[0])
size, err = fp.Mp4Read(3)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.Flag = util.Byte32Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StsdAtomInstance.EntriesNum = util.Byte42Uint32(size, 0)
return nil
}
func tkhdRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Offset = offset
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.IsFullBox = false
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.AllBytes = buf
size, err = fp.Mp4Read(1)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Version = uint8(size[0])
size, err = fp.Mp4Read(3)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Flag =
util.Byte32Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.CreationTime =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.ModificationTime =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.TrakID =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Reserved1 =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Duration =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(8)
if err != nil {
log.Fatalln(err.Error())
return err
}
//fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Reserved2 =
//util.Byte82Uint32(size, 0)
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Layer =
util.Byte22Uint16(size, 0)
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.AlternateGroup =
util.Bytes2Int(size)
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Volume =
util.Byte22Uint16(size, 0)
size, err = fp.Mp4Read(2)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.Reserved3 =
util.Byte22Uint16(size, 0)
size, err = fp.Mp4Read(36)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.MatrixStructure = size
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.TrackWidth =
util.Byte42Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].TkhdAtomInstance.TrackHeight =
util.Byte42Uint32(size, 0)
return nil
}
func stscRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Offset = offset
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.IsFullBox = false
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.AllBytes = buf
err = fp.Mp4Seek(offset+8, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, err = fp.Mp4Read(1)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Version = uint8(size[0])
size, err = fp.Mp4Read(3)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Flag = util.Byte32Uint32(size, 0)
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.EntriesNum = util.Byte42Uint32(size, 0)
//log.Println(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
//StblAtomInstance.StscAtomAtomInstance.EntriesNum)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable =
make([]Sample2Chunk, fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.EntriesNum)
var i uint32
for i = 0; i < fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.EntriesNum; i++ {
buf, err := fp.Mp4Read(12)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable[i] = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
StscAtomInstance.Sample2ChunkTable[i], util.Byte42Uint32(buf[0:4], 0))
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable[i] = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
StscAtomInstance.Sample2ChunkTable[i], util.Byte42Uint32(buf[4:8], 0))
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable[i] = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
StscAtomInstance.Sample2ChunkTable[i], util.Byte42Uint32(buf[8:12], 0))
/*
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
StscAtomAtomInstance.Sample2ChunkTable, fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.StscAtomInstance.Sample2ChunkTable[i])
*/
}
return nil
}
func cttsRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.Offset = offset
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.IsFullBox = false
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.AllBytes = buf
err = fp.Mp4Seek(offset+12, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.EntriesNum = util.Byte42Uint32(size, 0)
//log.Println(fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
//StblAtomInstance.CttsAtomAtomInstance.EntriesNum)
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.CttsDataTable =
make([]SampleCountOffset, fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.EntriesNum)
var i uint32
for i = 0; i < fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.EntriesNum; i++ {
buf, err := fp.Mp4Read(8)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.CttsDataTable[i] = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
CttsAtomInstance.CttsDataTable[i], util.Byte42Uint32(buf[0:4], 0))
fs.MoovAtomInstance.TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.
StblAtomInstance.CttsAtomInstance.CttsDataTable[i] = append(fs.MoovAtomInstance.
TrakAtomInstance[trakNum].MdiaAtomInstance.MinfAtomInstance.StblAtomInstance.
CttsAtomInstance.CttsDataTable[i], util.Byte42Uint32(buf[4:8], 0))
}
return nil
}
func ftypRead(fs *Mp4FileSpec, fp *Mp4FilePro, offset int64) error {
var err error
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
size, _, err := fp.Mp4ReadHeader()
if err != nil {
log.Fatalln(err.Error())
return err
}
sizeInt := util.Bytes2Int(size)
fs.FtypAtomInstance.Size = sizeInt
err = fp.Mp4Seek(offset, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err := fp.Mp4Read(fs.FtypAtomInstance.Size)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.FtypAtomInstance.AllBytes = buf
fs.FtypAtomInstance.Offset = offset
fs.FtypAtomInstance.IsFullBox = false
err = fp.Mp4Seek(offset+8, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
//fs.FtypAtomInstance.MajorBrand = string(buf)
fs.FtypAtomInstance.MajorBrand = buf
//log.Println(fs.FtypAtomInstance.MajorBrand)
err = fp.Mp4Seek(12, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err = fp.Mp4Read(4)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.FtypAtomInstance.MinorVersion = util.Byte42Uint32(buf, 0)
err = fp.Mp4Seek(16, 0)
if err != nil {
log.Fatalln(err.Error())
return err
}
buf, err = fp.Mp4Read(12)
if err != nil {
log.Fatalln(err.Error())
return err
}
fs.FtypAtomInstance.CompatibleBrands = string(buf)
return nil
}
