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Add ducktyped Promise checks (fixes #472)

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This commit is contained in:
Vanilagy
2026-08-26 11:24:24 +02:00
parent 0f9dc1f91b
commit 14fb7d0119
19 changed files with 162 additions and 128 deletions
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src/ogg/ogg-demuxer.ts
+9 -8
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@@ -18,6 +18,7 @@ import {
AsyncMutex,
binarySearchLessOrEqual,
findLast,
isThenable,
last,
roundIfAlmostInteger,
toDataView,
@@ -72,7 +73,7 @@ export class OggDemuxer extends Demuxer {
while (true) {
let slice = this.reader.requestSliceRange(currentPos, MIN_PAGE_HEADER_SIZE, MAX_PAGE_HEADER_SIZE);
if (slice instanceof Promise) slice = await slice;
if (isThenable(slice)) slice = await slice;
if (!slice) break;
const page = readPageHeader(slice);
@@ -274,7 +275,7 @@ export class OggDemuxer extends Demuxer {
while (true) {
// Load the entire page data
let pageSlice = this.reader.requestSlice(currentPage.dataStartPos, currentPage.dataSize);
if (pageSlice instanceof Promise) pageSlice = await pageSlice;
if (isThenable(pageSlice)) pageSlice = await pageSlice;
assert(pageSlice);
const pageData = readBytes(pageSlice, currentPage.dataSize);
@@ -299,7 +300,7 @@ export class OggDemuxer extends Demuxer {
let currentPos = currentPage.headerStartPos + currentPage.totalSize;
while (true) {
let headerSlice = this.reader.requestSliceRange(currentPos, MIN_PAGE_HEADER_SIZE, MAX_PAGE_HEADER_SIZE);
if (headerSlice instanceof Promise) headerSlice = await headerSlice;
if (isThenable(headerSlice)) headerSlice = await headerSlice;
if (!headerSlice) {
return null;
}
@@ -358,7 +359,7 @@ export class OggDemuxer extends Demuxer {
let currentPos = lastPacket.endPage.headerStartPos + lastPacket.endPage.totalSize;
while (true) {
let slice = this.reader.requestSliceRange(currentPos, MIN_PAGE_HEADER_SIZE, MAX_PAGE_HEADER_SIZE);
if (slice instanceof Promise) slice = await slice;
if (isThenable(slice)) slice = await slice;
if (!slice) {
return null;
}
@@ -658,7 +659,7 @@ class OggAudioTrackBacking implements InputAudioTrackBacking {
);
let searchSlice = this.demuxer.reader.requestSlice(searchStartPos, until - searchStartPos);
if (searchSlice instanceof Promise) searchSlice = await searchSlice;
if (isThenable(searchSlice)) searchSlice = await searchSlice;
assert(searchSlice);
const found = findNextPageHeader(searchSlice, until);
@@ -672,7 +673,7 @@ class OggAudioTrackBacking implements InputAudioTrackBacking {
MIN_PAGE_HEADER_SIZE,
MAX_PAGE_HEADER_SIZE,
);
if (headerSlice instanceof Promise) headerSlice = await headerSlice;
if (isThenable(headerSlice)) headerSlice = await headerSlice;
assert(headerSlice);
const page = readPageHeader(headerSlice);
@@ -685,7 +686,7 @@ class OggAudioTrackBacking implements InputAudioTrackBacking {
pageValid = true;
} else {
let pageSlice = this.demuxer.reader.requestSlice(page.headerStartPos, page.totalSize);
if (pageSlice instanceof Promise) pageSlice = await pageSlice;
if (isThenable(pageSlice)) pageSlice = await pageSlice;
assert(pageSlice);
// Validate the page by checking checksum
@@ -759,7 +760,7 @@ class OggAudioTrackBacking implements InputAudioTrackBacking {
const nextPos = currentPage.headerStartPos + currentPage.totalSize;
let slice = this.demuxer.reader.requestSliceRange(nextPos, MIN_PAGE_HEADER_SIZE, MAX_PAGE_HEADER_SIZE);
if (slice instanceof Promise) slice = await slice;
if (isThenable(slice)) slice = await slice;
assert(slice);
const nextPage = readPageHeader(slice);