1 files changed, 0 insertions, 162 deletions
diff --git a/vendor/github.com/abema/go-mp4/box_info.go b/vendor/github.com/abema/go-mp4/box_info.go
deleted file mode 100644
index 1cb4b8aa7..000000000
--- a/vendor/github.com/abema/go-mp4/box_info.go
+++ /dev/null
@@ -1,162 +0,0 @@
-package mp4
-
-import (
-	"bytes"
-	"encoding/binary"
-	"fmt"
-	"io"
-	"math"
-)
-
-type Context struct {
-	// IsQuickTimeCompatible represents whether ftyp.compatible_brands contains "qt  ".
-	IsQuickTimeCompatible bool
-
-	// QuickTimeKeysMetaEntryCount the expected number of items under the ilst box as observed from the keys box
-	QuickTimeKeysMetaEntryCount int
-
-	// UnderWave represents whether current box is under the wave box.
-	UnderWave bool
-
-	// UnderIlst represents whether current box is under the ilst box.
-	UnderIlst bool
-
-	// UnderIlstMeta represents whether current box is under the metadata box under the ilst box.
-	UnderIlstMeta bool
-
-	// UnderIlstFreeMeta represents whether current box is under "----" box.
-	UnderIlstFreeMeta bool
-
-	// UnderUdta represents whether current box is under the udta box.
-	UnderUdta bool
-}
-
-// BoxInfo has common infomations of box
-type BoxInfo struct {
-	// Offset specifies an offset of the box in a file.
-	Offset uint64
-
-	// Size specifies size(bytes) of box.
-	Size uint64
-
-	// HeaderSize specifies size(bytes) of common fields which are defined as "Box" class member at ISO/IEC 14496-12.
-	HeaderSize uint64
-
-	// Type specifies box type which is represented by 4 characters.
-	Type BoxType
-
-	// ExtendToEOF is set true when Box.size is zero. It means that end of box equals to end of file.
-	ExtendToEOF bool
-
-	// Context would be set by ReadBoxStructure, not ReadBoxInfo.
-	Context
-}
-
-func (bi *BoxInfo) IsSupportedType() bool {
-	return bi.Type.IsSupported(bi.Context)
-}
-
-const (
-	SmallHeaderSize = 8
-	LargeHeaderSize = 16
-)
-
-// WriteBoxInfo writes common fields which are defined as "Box" class member at ISO/IEC 14496-12.
-// This function ignores bi.Offset and returns BoxInfo which contains real Offset and recalculated Size/HeaderSize.
-func WriteBoxInfo(w io.WriteSeeker, bi *BoxInfo) (*BoxInfo, error) {
-	offset, err := w.Seek(0, io.SeekCurrent)
-	if err != nil {
-		return nil, err
-	}
-
-	var data []byte
-	if bi.ExtendToEOF {
-		data = make([]byte, SmallHeaderSize)
-	} else if bi.Size <= math.MaxUint32 && bi.HeaderSize != LargeHeaderSize {
-		data = make([]byte, SmallHeaderSize)
-		binary.BigEndian.PutUint32(data, uint32(bi.Size))
-	} else {
-		data = make([]byte, LargeHeaderSize)
-		binary.BigEndian.PutUint32(data, 1)
-		binary.BigEndian.PutUint64(data[SmallHeaderSize:], bi.Size)
-	}
-	data[4] = bi.Type[0]
-	data[5] = bi.Type[1]
-	data[6] = bi.Type[2]
-	data[7] = bi.Type[3]
-
-	if _, err := w.Write(data); err != nil {
-		return nil, err
-	}
-
-	return &BoxInfo{
-		Offset:      uint64(offset),
-		Size:        bi.Size - bi.HeaderSize + uint64(len(data)),
-		HeaderSize:  uint64(len(data)),
-		Type:        bi.Type,
-		ExtendToEOF: bi.ExtendToEOF,
-	}, nil
-}
-
-// ReadBoxInfo reads common fields which are defined as "Box" class member at ISO/IEC 14496-12.
-func ReadBoxInfo(r io.ReadSeeker) (*BoxInfo, error) {
-	offset, err := r.Seek(0, io.SeekCurrent)
-	if err != nil {
-		return nil, err
-	}
-
-	bi := &BoxInfo{
-		Offset: uint64(offset),
-	}
-
-	// read 8 bytes
-	buf := bytes.NewBuffer(make([]byte, 0, SmallHeaderSize))
-	if _, err := io.CopyN(buf, r, SmallHeaderSize); err != nil {
-		return nil, err
-	}
-	bi.HeaderSize += SmallHeaderSize
-
-	// pick size and type
-	data := buf.Bytes()
-	bi.Size = uint64(binary.BigEndian.Uint32(data))
-	bi.Type = BoxType{data[4], data[5], data[6], data[7]}
-
-	if bi.Size == 0 {
-		// box extends to end of file
-		offsetEOF, err := r.Seek(0, io.SeekEnd)
-		if err != nil {
-			return nil, err
-		}
-		bi.Size = uint64(offsetEOF) - bi.Offset
-		bi.ExtendToEOF = true
-		if _, err := bi.SeekToPayload(r); err != nil {
-			return nil, err
-		}
-	} else if bi.Size == 1 {
-		// read more 8 bytes
-		buf.Reset()
-		if _, err := io.CopyN(buf, r, LargeHeaderSize-SmallHeaderSize); err != nil {
-			return nil, err
-		}
-		bi.HeaderSize += LargeHeaderSize - SmallHeaderSize
-		bi.Size = binary.BigEndian.Uint64(buf.Bytes())
-	}
-
-	if bi.Size == 0 {
-		return nil, fmt.Errorf("invalid size")
-	}
-
-	return bi, nil
-}
-
-func (bi *BoxInfo) SeekToStart(s io.Seeker) (int64, error) {
-	return s.Seek(int64(bi.Offset), io.SeekStart)
-}
-
-func (bi *BoxInfo) SeekToPayload(s io.Seeker) (int64, error) {
-	return s.Seek(int64(bi.Offset+bi.HeaderSize), io.SeekStart)
-}
-
-func (bi *BoxInfo) SeekToEnd(s io.Seeker) (int64, error) {
-	return s.Seek(int64(bi.Offset+bi.Size), io.SeekStart)
-}