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/*! |
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* riffwave64 |
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* Read & write wave files with 8, 16, 24, 32 PCM, 32 IEEE & 64-bit data. |
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* Copyright (c) 2017 Rafael da Silva Rocha. |
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* https://github.com/rochars/riffwave64 |
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* https://tr2099.github.io |
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* |
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*/ |
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View Code Duplication |
var assert = require('assert'); |
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describe('create 32-bit PCM wave files from scratch', function() { |
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let wavefile = require('../../index.js'); |
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let wav = new wavefile.WaveFile(); |
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wav.fromScratch(1, 44100, '32', [0, -2147483648, 2147483647, 4]); |
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let fs = require('fs'); |
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fs.writeFileSync("./test/files/out/32-bitPCM-441kHz-mono-fromScratch.wav", wav.toBytes()); |
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it('chunkId should be "RIFF"', function() { |
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assert.equal(wav.chunkId, "RIFF"); |
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}); |
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it('format should be "WAVE"', function() { |
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assert.equal(wav.format, "WAVE"); |
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}); |
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it('subChunk1Id should be "fmt "', function() { |
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assert.equal(wav.subChunk1Id, "fmt "); |
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}); |
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it('subChunk1Size should be 16', function() { |
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assert.equal(wav.subChunk1Size, 16); |
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}); |
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it('audioFormat should be 1', function() { |
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assert.equal(wav.audioFormat, 1); |
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}); |
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it('numChannels should be 1', function() { |
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assert.equal(wav.numChannels, 1); |
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}); |
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it('sampleRate should be 44100', function() { |
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assert.equal(wav.sampleRate, 44100); |
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}); |
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it('byteRate should be 176400', function() { |
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assert.equal(wav.byteRate, 176400); |
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}); |
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it('blockAlign should be 4', function() { |
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assert.equal(wav.blockAlign, 4); |
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}); |
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it('bitsPerSample should be 32', function() { |
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assert.equal(wav.bitsPerSample, 32); |
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}); |
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it('subChunk2Id should be "data"', function() { |
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assert.equal(wav.subChunk2Id, "data"); |
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}); |
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it('subChunk2Size should be 16', function() { |
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assert.equal(wav.subChunk2Size, 16); |
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}); |
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it('samples_ should be the same as the args', function() { |
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assert.deepEqual(wav.samples_, [0, -2147483648, 2147483647, 4]); |
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}); |
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it('bitDepth_ should be "24"', function() { |
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assert.equal(wav.bitDepth_, "32"); |
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}); |
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/* |
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it('should return a 32-bit PCM wave file', function() { |
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let wav = rw64.writeWavBytes(1, 44100, '32', |
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[0, -2147483648, 2147483647, 4]); |
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let wavRead = rw64.readWavBytes(wav); |
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assert.equal(wavRead.audioFormat, 1); |
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assert.equal(wavRead.numChannels, 1); |
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assert.equal(wavRead.sampleRate, 44100); |
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assert.equal(wavRead.bitsPerSample, 32); |
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assert.equal(wavRead.blockAlign, 4); |
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assert.deepEqual(wavRead.samples, [0, -2147483648, 2147483647, 4]); |
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}); |
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it('should return a 32-bit PCM wave file with a odd number of samples', |
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function() { |
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let wav = rw64.writeWavBytes(1, 44100, '32', |
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[0, -2147483648, 45, 0, 1]); |
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let wavRead = rw64.readWavBytes(wav); |
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assert.equal(wavRead.audioFormat, 1); |
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assert.equal(wavRead.numChannels, 1); |
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assert.equal(wavRead.sampleRate, 44100); |
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assert.equal(wavRead.bitsPerSample, 32); |
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assert.equal(wavRead.blockAlign, 4); |
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assert.deepEqual(wavRead.samples, [0, -2147483648, 45, 0, 1]); |
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}); |
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it('should return a 32-bit PCM wave file with 7 channels', function() { |
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let wav = rw64.writeWavBytes(7, 48000, '32', |
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[0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]); |
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let read = rw64.readWavBytes(wav); |
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assert.equal(read.subChunk1Size, 16); |
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assert.equal(read.audioFormat, 1); |
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assert.equal(read.numChannels, 7); |
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assert.equal(read.sampleRate, 48000); |
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assert.equal(read.blockAlign, 28); |
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assert.equal(read.bitsPerSample, 32); |
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}); |
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it('should write a 32-bit PCM stereo wav file', function() { |
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let channels = [ |
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[0,1,2], |
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[0,1,2] |
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]; |
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let samples = rw64.interleave(channels); |
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let wav = rw64.writeWavBytes(2, 44100, '32', samples); |
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let read = rw64.readWavBytes(wav); |
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assert.equal(read.subChunk1Size, 16); |
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assert.equal(read.audioFormat, 1); |
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assert.equal(read.numChannels, 2); |
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assert.equal(read.sampleRate, 44100); |
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assert.equal(read.blockAlign, 8); |
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assert.equal(read.bitsPerSample, 32); |
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}); |
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it('should return a 32-bit PCM file with max possible sample value', |
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function() { |
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let wav = rw64.writeWavBytes(1, 16000, '32', |
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[-2147483648, 2147483647, -1, 1, 0]); |
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let wavRead = rw64.readWavBytes(wav); |
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assert.equal(wavRead.audioFormat, 1); |
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assert.equal(wavRead.numChannels, 1); |
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assert.equal(wavRead.sampleRate, 16000); |
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assert.equal(wavRead.blockAlign, 4); |
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assert.equal(wavRead.bitsPerSample, 32); |
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assert.deepEqual(wavRead.samples, |
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[-2147483648, 2147483647, -1, 1, 0]); |
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}); |
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*/ |
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}); |
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rochars /
wavefile
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