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comparison mrjunejune/test/hls_player_test.js @ 242:543df0fe7168

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[tools] Add full HLS player support
author MrJuneJune <me@mrjunejune.com>
date Mon, 03 Aug 2026 13:14:41 -0700
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241:9c2eec61a152 242:543df0fe7168
1 const assert = require('node:assert/strict');
2 const {
3 chooseVariant,
4 parseAttributeList,
5 parseMasterPlaylist,
6 parseMediaPlaylist,
7 normalizePlaylistUrl,
8 localRelativePath,
9 rewritePlaylistUris,
10 } = require('../src/tools/hls_player/hls-player.js');
11
12 const attributes = parseAttributeList(
13 'BANDWIDTH=500000,RESOLUTION=640x360,CODECS="avc1.42c01e,mp4a.40.2"',
14 );
15 assert.equal(attributes.BANDWIDTH, '500000');
16 assert.equal(attributes.RESOLUTION, '640x360');
17 assert.equal(attributes.CODECS, 'avc1.42c01e,mp4a.40.2');
18
19 const variants = parseMasterPlaylist(
20 '#EXTM3U\n#EXT-X-STREAM-INF:BANDWIDTH=100\nlow.m3u8\n#EXT-X-STREAM-INF:BANDWIDTH=200,CODECS="avc1.42c01e"\nhigh.m3u8\n',
21 'https://example.com/master.m3u8',
22 );
23 assert.equal(variants.length, 2);
24 assert.equal(chooseVariant(variants).url, 'https://example.com/high.m3u8');
25 assert.equal(
26 chooseVariant(variants, variant => variant.bandwidth < 200).url,
27 'https://example.com/low.m3u8',
28 );
29 assert.equal(chooseVariant(variants, () => false), null);
30
31 const media = parseMediaPlaylist(
32 '#EXTM3U\n#EXT-X-MAP:URI="init.mp4"\n#EXTINF:1.5,\nseg0.m4s\n#EXTINF:2.0,\nseg1.m4s\n#EXT-X-ENDLIST\n',
33 'https://example.com/path/stream.m3u8',
34 );
35 assert.equal(media.initSegment, 'https://example.com/path/init.mp4');
36 assert.equal(media.segments.length, 2);
37 assert.equal(media.segments[1].url, 'https://example.com/path/seg1.m4s');
38 assert.equal(media.totalDuration, 3.5);
39 assert.equal(media.endList, true);
40
41 assert.equal(
42 normalizePlaylistUrl('/stream.m3u8', 'https://example.com/tool'),
43 'https://example.com/stream.m3u8',
44 );
45 assert.throws(
46 () => normalizePlaylistUrl('file:///tmp/stream.m3u8', 'https://example.com'),
47 /HTTP, HTTPS, or a local file/,
48 );
49 assert.equal(
50 localRelativePath('folder/master.m3u8', 'video/stream.m3u8'),
51 'folder/video/stream.m3u8',
52 );
53 assert.equal(
54 localRelativePath('folder/video/stream.m3u8', '../init.mp4'),
55 'folder/init.mp4',
56 );
57 assert.equal(
58 localRelativePath('folder/video/stream.m3u8', '/init.mp4'),
59 'init.mp4',
60 );
61 assert.throws(
62 () => localRelativePath('master.m3u8', '../outside.m4s'),
63 /escapes/,
64 );
65
66 assert.throws(
67 () => parseMediaPlaylist(
68 '#EXTM3U\n#EXT-X-KEY:METHOD=AES-128,URI="key"\n#EXTINF:1,\nseg.m4s\n',
69 'https://example.com/stream.m3u8',
70 ),
71 /Encrypted HLS/,
72 );
73
74 (async () => {
75 const rewritten = await rewritePlaylistUris(
76 '#EXTM3U\n#EXT-X-MEDIA:TYPE=AUDIO,URI="audio.m3u8"\n#EXT-X-MAP:URI="init.mp4"\n#EXT-X-KEY:METHOD=AES-128,URI="key.bin"\n#EXTINF:1,\nseg.m4s\n',
77 async reference => `blob:${reference}`,
78 );
79 assert.match(rewritten, /URI="blob:audio\.m3u8"/);
80 assert.match(rewritten, /URI="blob:init\.mp4"/);
81 assert.match(rewritten, /URI="blob:key\.bin"/);
82 assert.match(rewritten, /blob:seg\.m4s/);
83 })().catch(error => {
84 console.error(error);
85 process.exitCode = 1;
86 });