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audio-player: using correct js declarations

This commit is contained in:
Trek H 2019-09-27 12:06:09 +09:30
parent 1de5438565
commit 0517e399d1
1 changed files with 10 additions and 10 deletions
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20
cmd/audio-player/adpcm.js
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@ -93,8 +93,8 @@ function decodeSample(nibble) {
function decode(b) { function decode(b) {
// Iterate over each chunk and decode it. // Iterate over each chunk and decode it.
let chunkLen; let chunkLen;
var result = []; let result = [];
for (var off = 0; off + headSize <= b.length; off += chunkLen) { for (let off = 0; off + headSize <= b.length; off += chunkLen) {
// Read length of chunk and check if whole chunk exists. // Read length of chunk and check if whole chunk exists.
chunkLen = bytesToInt32(b.slice(off, off + chunkLenSize)) chunkLen = bytesToInt32(b.slice(off, off + chunkLenSize))
if (off + chunkLen > b.length) { if (off + chunkLen > b.length) {
@ -108,20 +108,20 @@ function decode(b) {
result.push(...b.slice(off + chunkLenSize, off + chunkLenSize + byteDepth)); result.push(...b.slice(off + chunkLenSize, off + chunkLenSize + byteDepth));
for (var i = off + headSize; i < off + chunkLen - b[off + chunkLenSize + 3]; i++) { for (let i = off + headSize; i < off + chunkLen - b[off + chunkLenSize + 3]; i++) {
var twoNibs = b[i]; let twoNibs = b[i];
var nib2 = twoNibs >> 4; let nib2 = twoNibs >> 4;
var nib1 = (nib2 << 4) ^ twoNibs; let nib1 = (nib2 << 4) ^ twoNibs;
var sample1 = int16ToBytes(decodeSample(nib1)); let sample1 = int16ToBytes(decodeSample(nib1));
result.push(...sample1); result.push(...sample1);
var sample2 = int16ToBytes(decodeSample(nib2)); let sample2 = int16ToBytes(decodeSample(nib2));
result.push(...sample2); result.push(...sample2);
} }
if (b[off + chunkLenSize + 3] == 1) { if (b[off + chunkLenSize + 3] == 1) {
var padNib = b[off + chunkLen - 1]; let padNib = b[off + chunkLen - 1];
var sample = int16ToBytes(decodeSample(padNib)); let sample = int16ToBytes(decodeSample(padNib));
result.push(...sample); result.push(...sample);
} }
} }