codecmunger

Documentation

Index

• Variables
• type CodecMunger
• type Null
  • func NewNull(_logger logger.Logger) *Null
  • func (n *Null) GetSeededState() interface{}
  • func (n *Null) GetState() interface{}
  • func (n *Null) SeedState(state interface{})
  • func (n *Null) SetLast(_extPkt *buffer.ExtPacket)
  • func (n *Null) UpdateAndGet(_extPkt *buffer.ExtPacket, snOutOfOrder bool, snHasGap bool, maxTemporal int32) ([]byte, error)
  • func (n *Null) UpdateAndGetPadding(newPicture bool) ([]byte, error)
  • func (n *Null) UpdateOffsets(_extPkt *buffer.ExtPacket)
• type VP8
  • func NewVP8(logger logger.Logger) *VP8
  • func NewVP8FromNull(cm CodecMunger, logger logger.Logger) *VP8
  • func (v *VP8) GetState() interface{}
  • func (v *VP8) PictureIdOffset(extPictureId int32) (int32, bool)
  • func (v *VP8) SeedState(seed interface{})
  • func (v *VP8) SetLast(extPkt *buffer.ExtPacket)
  • func (v *VP8) UpdateAndGet(extPkt *buffer.ExtPacket, snOutOfOrder bool, snHasGap bool, ...) ([]byte, error)
  • func (v *VP8) UpdateAndGetPadding(newPicture bool) ([]byte, error)
  • func (v *VP8) UpdateOffsets(extPkt *buffer.ExtPacket)
• type VP8PictureIdWrapHandler
  • func (v *VP8PictureIdWrapHandler) Init(extPictureId int32, mBit bool)
  • func (v *VP8PictureIdWrapHandler) MaxPictureId() int32
  • func (v *VP8PictureIdWrapHandler) Unwrap(pictureId uint16, mBit bool) int32
  • func (v *VP8PictureIdWrapHandler) UpdateMaxPictureId(extPictureId int32, mBit bool)
• type VP8State
  • func (v VP8State) String() string

Variables

var (
	ErrNotVP8                          = errors.New("not VP8")
	ErrOutOfOrderVP8PictureIdCacheMiss = errors.New("out-of-order VP8 picture id not found in cache")
	ErrFilteredVP8TemporalLayer        = errors.New("filtered VP8 temporal layer")
)

Types

type CodecMunger

type CodecMunger interface {
	GetState() interface{}
	SeedState(state interface{})

	SetLast(extPkt *buffer.ExtPacket)
	UpdateOffsets(extPkt *buffer.ExtPacket)

	UpdateAndGet(extPkt *buffer.ExtPacket, snOutOfOrder bool, snHasGap bool, maxTemporal int32) ([]byte, error)

	UpdateAndGetPadding(newPicture bool) ([]byte, error)
}

type Null

type Null struct {
	// contains filtered or unexported fields
}

func NewNull

func NewNull(_logger logger.Logger) *Null

func (*Null) GetSeededState

func (n *Null) GetSeededState() interface{}

func (*Null) GetState

func (n *Null) GetState() interface{}

func (*Null) SeedState

func (n *Null) SeedState(state interface{})

func (*Null) SetLast

func (n *Null) SetLast(_extPkt *buffer.ExtPacket)

func (*Null) UpdateAndGet

func (n *Null) UpdateAndGet(_extPkt *buffer.ExtPacket, snOutOfOrder bool, snHasGap bool, maxTemporal int32) ([]byte, error)

func (*Null) UpdateAndGetPadding

func (n *Null) UpdateAndGetPadding(newPicture bool) ([]byte, error)

func (*Null) UpdateOffsets

func (n *Null) UpdateOffsets(_extPkt *buffer.ExtPacket)

type VP8

type VP8 struct {
	// contains filtered or unexported fields
}

func NewVP8

func NewVP8(logger logger.Logger) *VP8

func NewVP8FromNull

func NewVP8FromNull(cm CodecMunger, logger logger.Logger) *VP8

func (*VP8) GetState

func (v *VP8) GetState() interface{}

func (*VP8) PictureIdOffset

func (v *VP8) PictureIdOffset(extPictureId int32) (int32, bool)

for testing only

func (*VP8) SeedState

func (v *VP8) SeedState(seed interface{})

func (*VP8) SetLast

func (v *VP8) SetLast(extPkt *buffer.ExtPacket)

func (*VP8) UpdateAndGet

func (v *VP8) UpdateAndGet(extPkt *buffer.ExtPacket, snOutOfOrder bool, snHasGap bool, maxTemporalLayer int32) ([]byte, error)

func (*VP8) UpdateAndGetPadding

func (v *VP8) UpdateAndGetPadding(newPicture bool) ([]byte, error)

func (*VP8) UpdateOffsets

func (v *VP8) UpdateOffsets(extPkt *buffer.ExtPacket)

type VP8PictureIdWrapHandler

type VP8PictureIdWrapHandler struct {
	// contains filtered or unexported fields
}

func (*VP8PictureIdWrapHandler) Init

func (v *VP8PictureIdWrapHandler) Init(extPictureId int32, mBit bool)

func (*VP8PictureIdWrapHandler) MaxPictureId

func (v *VP8PictureIdWrapHandler) MaxPictureId() int32

func (*VP8PictureIdWrapHandler) Unwrap

func (v *VP8PictureIdWrapHandler) Unwrap(pictureId uint16, mBit bool) int32

unwrap picture id and update the maxPictureId. return unwrapped value

func (*VP8PictureIdWrapHandler) UpdateMaxPictureId

func (v *VP8PictureIdWrapHandler) UpdateMaxPictureId(extPictureId int32, mBit bool)

type VP8State

type VP8State struct {
	ExtLastPictureId int32
	PictureIdUsed    bool
	LastTl0PicIdx    uint8
	Tl0PicIdxUsed    bool
	TidUsed          bool
	LastKeyIdx       uint8
	KeyIdxUsed       bool
}

func (VP8State) String

func (v VP8State) String() string