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

Extensions

item	format
Apple audio	mov,mp4,m4a,3gp,3g2,mj2
Apple video	mov,mp4,m4a,3gp,3g2,mj2
CBC audio	mpegts
CBC video	mpegts
NBC	mpegts
Paramount	mpegts
Roku	mpegts

Documentation

Index

• type Block
  • func New_Block(key []byte) (*Block, error)
  • func (b Block) Mode(r io.Reader, iv []byte) *Block_Mode
  • func (b Block) Mode_Key(r io.Reader) *Block_Mode
• type Block_Mode
  • func (b *Block_Mode) Read(p []byte) (int, error)
• type Master
• type Media
  • func (m Media) Ext(b []byte) string
  • func (m Media) Get_Group_ID(value string) *Medium
  • func (m Media) Get_Name(value string) *Medium
  • func (m Media) Group_ID(value string) Media
  • func (m Media) Name(value string) Media
  • func (m Media) Type(value string) Media
• type Medium
  • func (m Medium) String() string
• type Scanner
  • func New_Scanner(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) Ext(b []byte) string
  • func (s Stream) String() string
• type Streams
  • func (s Streams) Audio(value string) Streams
  • func (s Streams) Codecs(value string) Streams
  • func (s Streams) Get_Bandwidth(value int64) *Stream

Types

type Block

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

func New_Block

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

func (Block) Mode

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

func (Block) Mode_Key

func (b Block) Mode_Key(r io.Reader) *Block_Mode

type Block_Mode

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

func (*Block_Mode) Read

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

type Master

type Master struct {
	Media   Media
	Streams Streams
}

type Media

type Media []Medium

func (Media) Ext

func (m Media) Ext(b []byte) string

func (Media) Get_Group_ID

func (m Media) Get_Group_ID(value string) *Medium

func (Media) Get_Name

func (m Media) Get_Name(value string) *Medium

func (Media) Group_ID

func (m Media) Group_ID(value string) Media

func (Media) Name

func (m Media) Name(value string) Media

func (Media) Type

func (m Media) Type(value string) Media

type Medium

type Medium struct {
	Group_ID string
	Name     string
	Type     string
	URI      string
}

func (Medium) String

func (m Medium) String() string

type Scanner

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

func New_Scanner

func New_Scanner(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
	Key       string
	Protected []string
	Raw_IV    string
}

func (Segment) IV

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

type Stream

type Stream struct {
	Audio      string
	Bandwidth  int64
	Codecs     string
	Resolution string
	URI        string
}

func (Stream) Ext

func (s Stream) Ext(b []byte) string

func (Stream) String

func (s Stream) String() string

type Streams

type Streams []Stream

func (Streams) Audio

func (s Streams) Audio(value string) Streams

func (Streams) Codecs

func (s Streams) Codecs(value string) Streams

func (Streams) Get_Bandwidth

func (s Streams) Get_Bandwidth(value int64) *Stream