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fix #169

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This commit is contained in:
MengYX 2021-08-25 01:04:46 +08:00
parent 84be57a903
commit 942e43fa16
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GPG Key ID: E63F9C7303E8F604
1 changed files with 8 additions and 8 deletions
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16
src/decrypt/qmcMask.ts
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@ -128,17 +128,17 @@ export function QmcMaskGetDefault() {
}
export function QmcMaskDetectMflac(data: Uint8Array) {
let search_len = Math.min(0x8000, data.length), mask;
let search_len = Math.min(0x8000, data.length)
for (let block_idx = 0; block_idx < search_len; block_idx += 128) {
try {
mask = new QmcMask(data.slice(block_idx, block_idx + 128));
let mask = new QmcMask(data.slice(block_idx, block_idx + 128));
if (BytesHasPrefix(mask.Decrypt(data.slice(0, FLAC_HEADER.length)), FLAC_HEADER)) {
break;
return mask
}
} catch (e) {
}
}
return mask;
return
}
export function QmcMaskDetectMgg(data: Uint8Array) {
@ -166,13 +166,13 @@ export function QmcMaskDetectMgg(data: Uint8Array) {
for (let i = 0; i < 44; i++)
matrix[i] = calcMaskFromConfidence(matrixConfidence[i]);
} catch (e) {
return;
return
}
const mask = new QmcMask(matrix);
if (!BytesHasPrefix(mask.Decrypt(data.slice(0, OGG_HEADER.length)), OGG_HEADER)) {
return;
if (BytesHasPrefix(mask.Decrypt(data.slice(0, OGG_HEADER.length)), OGG_HEADER)) {
return mask
}
return mask;
return
}