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(dst io.Writer, src io.Reader, iv []byte) (int, error)
• type Information
  • func (i Information) String() string
• type Key
  • func (k Key) String() string
• type Master
  • func NewMaster(addr *url.URL, body io.Reader) (*Master, error)
  • func (m Master) GetMedia(str Stream) *Media
  • func (m Master) Len() int
  • func (m Master) Swap(i, j int)
• type Media
• type Segment
  • func NewSegment(addr *url.URL, body io.Reader) (*Segment, error)
  • func (s Segment) Ext() string
  • func (s Segment) Progress(i int) (int, string)
  • func (s Segment) String() string
• 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(dst io.Writer, src io.Reader, iv []byte) (int, error)

type Information

type Information struct {
	URI *url.URL
	IV  []byte
}

func (Information) String

func (i Information) String() string

type Key

type Key struct {
	Method string
	URI    *url.URL
}

func (Key) String

func (k Key) String() string

type Master

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

func NewMaster

func NewMaster(addr *url.URL, body io.Reader) (*Master, error)

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 Segment

type Segment struct {
	Key  *Key
	Info []Information
}

func NewSegment

func NewSegment(addr *url.URL, body io.Reader) (*Segment, error)

func (Segment) Ext

func (s Segment) Ext() string

func (Segment) Progress

func (s Segment) Progress(i int) (int, string)

func (Segment) String

func (s Segment) String() string

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)