senc package

import "41.neocities.org/sofia/senc"

Index ¶

• type Box
  • func (b *Box) Append(data []byte) ([]byte, error)
  • func (b *Box) Read(data []byte) error
• type Sample
  • func (s *Sample) Append(data []byte) ([]byte, error)
  • func (s *Sample) Decode(data []byte) (int, error)
  • func (s *Sample) DecryptCenc(text, key []byte) error
• type Subsample
  • func (s Subsample) Append(data []byte) ([]byte, error)
  • func (s *Subsample) Decode(data []byte) (int, error)

type Box ¶

type Box struct {
	BoxHeader     sofia.BoxHeader
	FullBoxHeader sofia.FullBoxHeader
	SampleCount   uint32
	Sample        []Sample
}

ISO/IEC 23001-7

if the version of the SampleEncryptionBox is 0 and the flag senc_use_subsamples is set, UseSubSampleEncryption is set to 1

aligned(8) class SampleEncryptionBox extends FullBox(
   'senc', version, flags
) {
   unsigned int(32) sample_count;
   {
      unsigned int(Per_Sample_IV_Size*8) InitializationVector;
      if (UseSubSampleEncryption) {
         unsigned int(16) subsample_count;
         {
            unsigned int(16) BytesOfClearData;
            unsigned int(32) BytesOfProtectedData;
         } [subsample_count ]
      }
   }[ sample_count ]
}

func (*Box) Append ¶

func (b *Box) Append(data []byte) ([]byte, error)

func (*Box) Read ¶

func (b *Box) Read(data []byte) error

type Sample ¶

type Sample struct {
	InitializationVector [8]uint8
	SubsampleCount       uint16
	Subsample            []Subsample
	// contains filtered or unexported fields
}

func (*Sample) Append ¶

func (s *Sample) Append(data []byte) ([]byte, error)

func (*Sample) Decode ¶

func (s *Sample) Decode(data []byte) (int, error)

func (*Sample) DecryptCenc ¶

func (s *Sample) DecryptCenc(text, key []byte) error

github.com/Eyevinn/mp4ff/blob/v0.40.2/mp4/crypto.go#L101

type Subsample ¶

type Subsample struct {
	BytesOfClearData     uint16
	BytesOfProtectedData uint32
}

func (Subsample) Append ¶

func (s Subsample) Append(data []byte) ([]byte, error)

func (*Subsample) Decode ¶

func (s *Subsample) Decode(data []byte) (int, error)

Source Files ¶

senc.go