hls

README

HLS

HTTP Live Streaming https://wikipedia.org/wiki/HTTP_Live_Streaming

HTTP Live Streaming (HLS) authoring specification https://developer.apple.com/documentation/http_live_streaming/http_live_streaming_hls_authoring_specification_for_apple_devices/hls_authoring_specification_for_apple_devices_appendixes

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)

HTTP Live Streaming 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

Padding (cryptography): https://wikipedia.org/wiki/Padding_(cryptography)#PKCS#5_and_PKCS#7

Cryptographic Message Syntax (CMS): https://datatracker.ietf.org/doc/html/rfc5652

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

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

prior art

move away from RegExp: https://github.com/grafov/m3u8/issues/206

publish module: https://github.com/orestonce/m3u8d/issues/28

bufio.Scanner: token too long: https://github.com/eswarantg/m3u8reader/issues/11

move away from RegExp: https://github.com/jamesnetherton/m3u/issues/8

publish module: https://github.com/antoinecaputo/m3u/issues/5

should not call shell: https://github.com/ByteTu/Api-N_m3u8DL/issues/4

add license: https://github.com/mattetti/m3u8Grabber/issues/3

add go.mod: https://github.com/ushis/m3u/issues/3

m3uparser.M3uParser add byte input: https://github.com/pawanpaudel93/go-m3u-parser/issues/3

Documentation

Index

• Constants
• type BlockMode
  • func (b BlockMode) Decrypt(text []byte) []byte
  • func (b *BlockMode) New(key []byte) error
• type MasterPlaylist
  • func (m MasterPlaylist) Index(i int) (*VariantStream, bool)
  • func (m *MasterPlaylist) New(s string)
• type MediaSegment
  • func (m *MediaSegment) New(s string)
• type VariantStream
  • func (v VariantStream) Ext() string

Constants

const ModeLine = `` /* 233-byte string literal not displayed */

Types

type BlockMode

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

func (BlockMode) Decrypt

func (b BlockMode) Decrypt(text []byte) []byte

func (*BlockMode) New

func (b *BlockMode) New(key []byte) error

type MasterPlaylist

type MasterPlaylist []VariantStream

datatracker.ietf.org/doc/html/rfc8216#section-4.3.4

func (MasterPlaylist) Index

func (m MasterPlaylist) Index(i int) (*VariantStream, bool)

func (*MasterPlaylist) New

func (m *MasterPlaylist) New(s string)

type MediaSegment

type MediaSegment struct {
	// datatracker.ietf.org/doc/html/rfc8216#section-4.3.2.4
	Key struct {
		IV  string
		URI string
	}
	URI []string
}

datatracker.ietf.org/doc/html/rfc8216#section-3

func (*MediaSegment) New

func (m *MediaSegment) New(s string)

type VariantStream

type VariantStream struct {
	Bandwidth  string
	Codecs     string
	Resolution string
	URI        string
}

datatracker.ietf.org/doc/html/rfc8216#section-4.3.4.2

func (VariantStream) Ext

func (v VariantStream) Ext() string