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34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
7 years ago
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import {equal} from 'assert';
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import Ogg from '../src/utils/ogg.js';
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var channel = 1,
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decoder = new Ogg(channel),
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audioCtx = new (window.AudioContext || window.webkitAudioContext)(),
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sampleRate = audioCtx.sampleRate;
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describe('Ogg tests -- ', function() {
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it('sample rate should be same system sample rate', function() {
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equal(decoder.getSampleRate(), sampleRate);
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});
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it('magic Signature of ID header should be Opus Head', function() {
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var idHeader = decoder.getIDHeader();
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var dv = new DataView(idHeader.buffer);
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equal(dv.getUint32(0, true), 1937076303);
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equal(dv.getUint32(4, true), 1684104520);
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});
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it('magic Signature of comment header should be Opus Tags', function() {
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var commonHeader = decoder.getCommentHeader();
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var dv = new DataView(commonHeader.buffer);
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equal(dv.getUint32(0, true), 1937076303);
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equal(dv.getUint32(4, true), 1936154964);
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});
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it('page header should be started with OggS', function() {
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var segmentData = new Uint8Array(20);
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var page = decoder.getPage(segmentData, 4);
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var dv = new DataView(page.buffer);
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equal(dv.getUint32(0, true), 1399285583);
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});
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});
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