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m3u8-file-parser

A m3u/m3u8 file parser build against RFC8216 specs.

Installation

npm install m3u8-file-parser --save or yarn add m3u8-file-parser

Usage

In Node.js

const M3U8FileParser = require('m3u8-file-parser');
const fs = require('fs');
const content = fs.readFileSync('./example.m3u8', { encoding: 'utf-8'});

const reader = new M3U8FileParser();
reader.read(content);
reader.getResult(); // Get the parse result
reader.reset(); // Optional, If you want to parse a new file, call reset()

In Node.js read line by line

const M3U8FileParser = require('m3u8-file-parser');
const fs = require('fs');
const content = fs.readFileSync('./example.m3u8', { encoding: 'utf-8'});
const readline = require('readline');

const reader = new M3U8FileParser();
const stream = fs.createReadStream('./example.m3u8', { encoding: 'utf-8' });
const interface = readline.createInterface({ input: stream });

interface.on('line', line => reader.read(line)); // Read line by line
interface.on('close', () => reader.getResult()); // Get result after file ends.

In browser, use the file in dist instead.

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title>M3U8FileParser Browser Example</title>
  <script src="../../dist/m3u8-file-parser.min.js"></script>
  <script>
    var reader = new M3U8FileParser();
    var m3u8Content = `
      #EXTM3U
      #EXTINF:10, Sample Title
      https://example.com/sample1.mp3

      #EXTINF:10, Sample Title 2\n
      https://example.com/sample2.mp3
    `;

    reader.read(m3u8Content);
    console.log('result', reader.getResult());
  </script>
</head>
<body>
  <h2>See console for result</h2>
</body>
</html>

Also, you can parse file line by line if you want, for example, in Node.js, parsing a large file using readline

Supported Tags

Basic Tags

EXTM3U

EXT-X-VERSION

Media Segment Tags

EXTINF

EXT-X-BYTERANGE

EXT-X-DISCONTINUITY

EXT-X-KEY

EXT-X-MAP

EXT-X-PROGRAM-DATE-TIME

EXT-X-DATERANGE

Media Playlist Tags

EXT-X-TARGETDURATION

EXT-X-MEDIA-SEQUENCE

EXT-X-DISCONTINUITY-SEQUENCE

EXT-X-ENDLIST

EXT-X-PLAYLIST-TYPE

EXT-X-I-FRAMES-ONLY

Master Playlist Tags

EXT-X-MEDIA

EXT-X-STREAM-INF

EXT-X-I-FRAME-STREAM-INF

EXT-X-SESSION-DATA

EXT-X-SESSION-KEY

Media or Master Playlist Tags

EXT-X-INDEPENDENT-SEGMENTS

EXT-X-START

Extended Features

  • Attributes in EXTINF, For example: #EXTINF:10 example="hah", title
  • Camel case conversion for attribute list

APIs

read(str: String)

Read the M3U/M3U8 content and parse it, you can pass a whole M3U/M3U8 content or just one line of the content.

getResult(): Object

Get the current parsed result

reset()

Reset the parsed result

Custom Parsers

No support currently.

File an issue if the parsing strategy is wrong

Feel free to file any issues

Other

Currently the parser do not support validation checks for M3U/M3U8 file, like the example given below, are violating Section 4.3.5, but the parser will parse it anyway.

Parsing Example

#EXTM3U
#EXT-X-VERSION:2
#EXT-X-TARGETDURATION:6
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-DISCONTINUITY-SEQUENCE:1
#EXT-X-START:PERCISE=NO,TIME-OFFSET=2.11
#EXT-X-MEDIA-SEQUENCE:1
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="English",DEFAULT=YES,AUTOSELECT=YES,FORCED=NO,LANGUAGE="en",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/eng/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="English (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="en",URI="subtitles/eng_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Français",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="fr",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/fra/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Français (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="fr",URI="subtitles/fra_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Español",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="es",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/spa/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="Español (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="es",URI="subtitles/spa_forced/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="日本語",DEFAULT=NO,AUTOSELECT=YES,FORCED=NO,LANGUAGE="ja",CHARACTERISTICS="public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",URI="subtitles/jpn/prog_index.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subs",NAME="日本語 (Forced)",DEFAULT=NO,AUTOSELECT=NO,FORCED=YES,LANGUAGE="ja",URI="subtitles/jpn_forced/prog_index.m3u8"
#EXT-X-SESSION-DATA:DATA-ID="com.example.lyrics",URI="lyrics.json"
#EXT-X-SESSION-DATA:DATA-ID="com.example.title",LANGUAGE="en", \
        VALUE="This is an example"
#EXT-X-SESSION-DATA:DATA-ID="com.example.title",LANGUAGE="es", \
        VALUE="Este es un ejemplo"
#EXT-X-SESSION-KEY:METHOD=AES-128,URI="https://priv.example.com/key.php?r=52",IV=0x9c7db8778570d05c3177c349fd9236aa
#EXT-X-STREAM-INF:BANDWIDTH=100,AVERAGE-BANDWIDTH=128,CODECS="MPEG-4;MPEG-2",RESOLUTION=1080,FRAME-RATE=29.97,HDCP-LEVEL="TYPE-0",AUDIO="AUDIO",VIDEO="VIDEO"
#EXT-X-I-FRAME-STREAM-INF:BANDWIDTH=120,URI="THATFILE.M3U8"
#EXT-X-BYTERANGE:100@10
#EXT-X-DISCONTINUITY
#EXT-X-KEY:METHOD=AES-128,URI="https://priv.example.com/key.php?r=52",IV=0x9c7db8778570d05c3177c349fd9236aa
#EXT-X-MAP:URI="https://example.map.uri",BYTERANGE="300@0"
#EXT-X-PROGRAM-DATE-TIME:2010-02-19T14:54:23.031+08:00
#EXT-X-DATERANGE:ID="ITS ID",CLASS="ITS CLASS",START-DATE="2010-02-19T14:54:23.031+08:00",END-DATE="2010-02-19T14:54:23.031+08:00",DURATION=1.33,PLANNED-DURATION=2.33
#EXTINF:23.222 tvg-logo="haha,  ddd" tvg-aa="sb@" tag=sa, Sample artist, : - Sample title
C:\Documents and Settings\I\My Music\Sample.mp3
#EXT-X-ENDLIST
#COMMENT YAS

Parsed result:

{
  "isExtendedM3U": true,
  "segments": [
    {
      "isMasterPlaylist": true,
      "sessionKey": {
        "method": "AES-128",
        "uri": "https://priv.example.com/key.php?r=52",
        "iv": "0x9c7db8778570d05c3177c349fd9236aa"
      },
      "streamInf": {
        "bandwidth": 100,
        "averageBandwidth": 128,
        "codecs": [
          "MPEG-4",
          "MPEG-2"
        ],
        "resolution": 1080,
        "frameRate": 29.97,
        "hdcpLevel": "TYPE-0",
        "audio": "AUDIO",
        "video": "VIDEO"
      },
      "iFrameStreamInf": {
        "bandwidth": 120,
        "uri": "THATFILE.M3U8"
      },
      "byteRange": {
        "length": 100,
        "offset": 10
      },
      "discontinuity": true,
      "key": {
        "method": "AES-128",
        "uri": "https://priv.example.com/key.php?r=52",
        "iv": "0x9c7db8778570d05c3177c349fd9236aa"
      },
      "map": {
        "uri": "https://example.map.uri",
        "byterange": {
          "length": 300,
          "offset": 0
        }
      },
      "programDateTime": "2010-02-19T06:54:23.031Z",
      "dateRange": {
        "id": "ITS ID",
        "class": "ITS CLASS",
        "startDate": "2010-02-19T06:54:23.031Z",
        "endDate": "2010-02-19T06:54:23.031Z",
        "duration": 1.33,
        "plannedDuration": 2.33
      },
      "inf": {
        "duration": 23.222,
        "title": "Sample artist, : - Sample title",
        "tvg-logo": "haha,  ddd",
        "tvg-aa": "sb@",
        "tag": "sa"
      },
      "url": "C:\\Documents and Settings\\I\\My Music\\Sample.mp3"
    }
  ],
  "version": 2,
  "targetDuration": 6,
  "playlistType": "VOD",
  "discontinuitySequence": 1,
  "start": {
    "percise": true,
    "timeOffset": 2.11
  },
  "mediaSequence": 1,
  "independentSegments": true,
  "media": {
    "SUBTITLES": {
      "subs": {
        "English": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "English",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "en",
          "characteristics": "public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",
          "uri": "subtitles/eng/prog_index.m3u8"
        },
        "English (Forced)": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "English (Forced)",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "en",
          "uri": "subtitles/eng_forced/prog_index.m3u8"
        },
        "Français": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "Français",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "fr",
          "characteristics": "public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",
          "uri": "subtitles/fra/prog_index.m3u8"
        },
        "Français (Forced)": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "Français (Forced)",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "fr",
          "uri": "subtitles/fra_forced/prog_index.m3u8"
        },
        "Español": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "Español",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "es",
          "characteristics": "public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",
          "uri": "subtitles/spa/prog_index.m3u8"
        },
        "Español (Forced)": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "Español (Forced)",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "es",
          "uri": "subtitles/spa_forced/prog_index.m3u8"
        },
        "日本語": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "日本語",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "ja",
          "characteristics": "public.accessibility.transcribes-spoken-dialog, public.accessibility.describes-music-and-sound",
          "uri": "subtitles/jpn/prog_index.m3u8"
        },
        "日本語 (Forced)": {
          "groupId": "subs",
          "type": "SUBTITLES",
          "name": "日本語 (Forced)",
          "default": true,
          "autoselect": true,
          "forced": true,
          "language": "ja",
          "uri": "subtitles/jpn_forced/prog_index.m3u8"
        }
      }
    }
  },
  "sessionData": {
    "com.example.lyrics": {
      "undefined": {
        "dataId": "com.example.lyrics",
        "uri": "lyrics.json"
      }
    },
    "com.example.title": {
      "en": {
        "dataId": "com.example.title",
        "language": "en",
        "value": "This is an example"
      },
      "es": {
        "dataId": "com.example.title",
        "language": "es",
        "value": "Este es un ejemplo"
      }
    }
  },
  "endList": 2
}

License

MIT