trun package

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

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)

type Box ¶

type Box struct {
	BoxHeader        sofia.BoxHeader
	FullBoxHeader    sofia.FullBoxHeader
	SampleCount      uint32
	DataOffset       int32
	FirstSampleFlags uint32
	Sample           []Sample
}

ISO/IEC 14496-12

If the data-offset is present, it is relative to the base-data-offset established in the track fragment header.

sample-size-present: each sample has its own size, otherwise the default is used.

aligned(8) class TrackRunBox extends FullBox('trun', version, tr_flags) {
   unsigned int(32) sample_count;
   signed int(32) data_offset; // 0x000001, assume present
   unsigned int(32) first_sample_flags; // 0x000004
   {
      unsigned int(32) sample_duration; // 0x000100
      unsigned int(32) sample_size; // 0x000200
      unsigned int(32) sample_flags // 0x000400
      if (version == 0) {
         unsigned int(32) sample_composition_time_offset; // 0x000800
      } else {
         signed int(32) sample_composition_time_offset; // 0x000800
      }
   }[ 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 {
	Duration              uint32
	SampleSize            uint32
	Flags                 uint32
	CompositionTimeOffset [4]byte
	// 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)

Source Files ¶

trun.go