hls

README

HLS

• https://developer.apple.com/documentation/http_live_streaming/http_live_streaming_hls_authoring_specification_for_apple_devices/hls_authoring_specification_for_apple_devices_appendixes
• https://wikipedia.org/wiki/HTTP_Live_Streaming

CBC

Why does this:

#EXT-X-KEY:METHOD=AES-128,URI="https://cbsios-vh.akamaihd.net/i/temp_hd_galle...

mean CBC?

An encryption method of AES-128 signals that Media Segments are completely encrypted using the Advanced Encryption Standard (AES) [AES_128] with a 128-bit key, Cipher Block Chaining (CBC)

https://datatracker.ietf.org/doc/html/rfc8216#section-4.3.2.4

EXT-X-KEY

If IV is missing, then use KEY for both.

Padding

Public-Key Cryptography Standards #7 (PKCS7) padding [RFC5652]

• https://wikipedia.org/wiki/Padding_(cryptography)#PKCS#5_and_PKCS#7
• https://datatracker.ietf.org/doc/html/rfc5652
• https://datatracker.ietf.org/doc/html/rfc8216#section-4.3.2.4

Documentation

Index

• Constants
• type Block
  • func NewBlock(key []byte) (*Block, error)
  • func (b Block) Mode(r io.Reader, iv []byte) *BlockMode
  • func (b Block) ModeKey(r io.Reader) *BlockMode
• type BlockMode
  • func (b *BlockMode) Read(p []byte) (int, error)
• type Master
• type Media
  • func (m Media) GetGroupID(val string) *Medium
  • func (m Media) GetName(val string) *Medium
  • func (m Media) GroupID(val string) Media
  • func (m Media) Name(val string) Media
  • func (m Media) Type(val string) Media
  • func (m Media) URI(val string) Media
• type Medium
  • func (m Medium) String() string
• type Scanner
  • func NewScanner(body io.Reader) Scanner
  • func (s Scanner) Master() (*Master, error)
  • func (s Scanner) Segment() (*Segment, error)
• type Segment
  • func (s Segment) IV() ([]byte, error)
• type Stream
  • func (s Stream) Codecs() string
  • func (s Stream) String() string
• type Streams
  • func (s Streams) Codecs(val string) Streams
  • func (s Streams) GetBandwidth(val int64) *Stream
  • func (s Streams) URI(val string) Streams
  • func (s Streams) VideoRange(val string) Streams

Constants

const (
	AAC = ".aac"
	TS  = ".ts"
)

Types

type Block

type Block struct {
	cipher.Block
	// contains filtered or unexported fields
}

func NewBlock

func NewBlock(key []byte) (*Block, error)

func (Block) Mode

func (b Block) Mode(r io.Reader, iv []byte) *BlockMode

func (Block) ModeKey

func (b Block) ModeKey(r io.Reader) *BlockMode

type BlockMode

type BlockMode struct {
	cipher.BlockMode
	// contains filtered or unexported fields
}

func (*BlockMode) Read

func (b *BlockMode) Read(p []byte) (int, error)

type Master

type Master struct {
	Media   Media
	Streams Streams
}

type Media

type Media []Medium

func (Media) GetGroupID

func (m Media) GetGroupID(val string) *Medium

func (Media) GetName

func (m Media) GetName(val string) *Medium

English

func (Media) GroupID

func (m Media) GroupID(val string) Media

stereo

func (Media) Name

func (m Media) Name(val string) Media

English

func (Media) Type

func (m Media) Type(val string) Media

AUDIO

func (Media) URI

func (m Media) URI(val string) Media

cdn

type Medium

type Medium struct {
	Type    string
	Name    string
	GroupID string
	RawURI  string
}

func (Medium) String

func (m Medium) String() string

type Scanner

type Scanner struct {
	scanner.Scanner
	// contains filtered or unexported fields
}

func NewScanner

func NewScanner(body io.Reader) Scanner

func (Scanner) Master

func (s Scanner) Master() (*Master, error)

func (Scanner) Segment

func (s Scanner) Segment() (*Segment, error)

type Segment

type Segment struct {
	Clear     []string
	Protected []string
	RawIV     string
	RawKey    string
}

func (Segment) IV

func (s Segment) IV() ([]byte, error)

type Stream

type Stream struct {
	Resolution string
	Bandwidth  int64  // handle duplicate resolution
	VideoRange string // handle duplicate bandwidth
	RawCodecs  string // handle missing resolution
	RawURI     string
}

func (Stream) Codecs

func (s Stream) Codecs() string

func (Stream) String

func (s Stream) String() string

type Streams

type Streams []Stream

func (Streams) Codecs

func (s Streams) Codecs(val string) Streams

hvc1 mp4a

func (Streams) GetBandwidth

func (s Streams) GetBandwidth(val int64) *Stream

func (Streams) URI

func (s Streams) URI(val string) Streams

cdn=vod-ak-aoc.tv.apple.com

func (Streams) VideoRange

func (s Streams) VideoRange(val string) Streams

PQ