hls

README

HLS

• https://wikipedia.org/wiki/HTTP_Live_Streaming
• https://godocs.io/net/url#URL.ResolveReference
• https://play.google.com/store/apps/details?id=com.cbs.app

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.

https://github.com/oopsguy/m3u8/blob/master/tool/crypt.go#L25-L39

Documentation

Index

• type Bandwidth
  • func (b Bandwidth) Less(i, j int) bool
• type Cipher
  • func NewCipher(src io.Reader) (*Cipher, error)
  • func (c Cipher) Copy(w io.Writer, r io.Reader, iv []byte) (int, error)
• type Information
• type Master
  • func (m Master) GetMedia(str Stream) *Media
  • func (m Master) Len() int
  • func (m Master) Swap(i, j int)
• type Media
• type Scanner
  • func NewScanner(body io.Reader) *Scanner
  • func (s *Scanner) Master(addr *url.URL) (*Master, error)
  • func (s *Scanner) Segment(addr *url.URL) (*Segment, error)
• type Segment
  • func (s Segment) Ext() string
  • func (s Segment) Length(str Stream) int64
• type Stream
  • func (s Stream) Format(f fmt.State, verb rune)

Types

type Bandwidth

type Bandwidth struct {
	*Master
	Target int
}

func (Bandwidth) Less

func (b Bandwidth) Less(i, j int) bool

type Cipher

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

func NewCipher

func NewCipher(src io.Reader) (*Cipher, error)

func (Cipher) Copy

func (c Cipher) Copy(w io.Writer, r io.Reader, iv []byte) (int, error)

type Information

type Information struct {
	IV []byte
	// If we embed this, it will hijack String method
	Duration time.Duration
	URI      *url.URL
}

type Master

type Master struct {
	Stream []Stream
	Media  []Media
}

func (Master) GetMedia

func (m Master) GetMedia(str Stream) *Media

func (Master) Len

func (m Master) Len() int

func (Master) Swap

func (m Master) Swap(i, j int)

type Media

type Media struct {
	GroupID string
	URI     *url.URL
}

type Scanner

type Scanner struct {
	scanner.Scanner
}

func NewScanner

func NewScanner(body io.Reader) *Scanner

func (*Scanner) Master

func (s *Scanner) Master(addr *url.URL) (*Master, error)

func (*Scanner) Segment

func (s *Scanner) Segment(addr *url.URL) (*Segment, error)

type Segment

type Segment struct {
	Key  *url.URL
	Info []Information
}

func (Segment) Ext

func (s Segment) Ext() string

func (Segment) Length

func (s Segment) Length(str Stream) int64

type Stream

type Stream struct {
	Resolution string
	Bandwidth  int    // handle duplicate resolution
	Codecs     string // handle missing resolution
	Audio      string // link to Media
	URI        *url.URL
}

func (Stream) Format

func (s Stream) Format(f fmt.State, verb rune)