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api/stream/internal: stream vk videos in chunks

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wukko 2025-06-24 17:04:43 +06:00
parent 599ec9dd92
commit 44f4ea32c6
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GPG Key ID: 3E30B3F26C7B4AA2
1 changed files with 7 additions and 5 deletions
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12
api/src/stream/internal.js
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@ -6,6 +6,8 @@ import { handleHlsPlaylist, isHlsResponse, probeInternalHLSTunnel } from "./inte
const CHUNK_SIZE = BigInt(8e6); // 8 MB
const min = (a, b) => a < b ? a : b;
const serviceNeedsChunks = ["youtube", "vk"];
async function* readChunks(streamInfo, size) {
let read = 0n, chunksSinceTransplant = 0;
while (read < size) {
@ -15,7 +17,7 @@ async function* readChunks(streamInfo, size) {
const chunk = await request(streamInfo.url, {
headers: {
...getHeaders('youtube'),
...getHeaders(streamInfo.service),
Range: `bytes=${read}-${read + CHUNK_SIZE}`
},
dispatcher: streamInfo.dispatcher,
@ -48,7 +50,7 @@ async function* readChunks(streamInfo, size) {
}
}
async function handleYoutubeStream(streamInfo, res) {
async function handleChunkedStream(streamInfo, res) {
const { signal } = streamInfo.controller;
const cleanup = () => (res.end(), closeRequest(streamInfo.controller));
@ -56,7 +58,7 @@ async function handleYoutubeStream(streamInfo, res) {
let req, attempts = 3;
while (attempts--) {
req = await fetch(streamInfo.url, {
headers: getHeaders('youtube'),
headers: getHeaders(streamInfo.service),
method: 'HEAD',
dispatcher: streamInfo.dispatcher,
signal
@ -146,8 +148,8 @@ export function internalStream(streamInfo, res) {
streamInfo.headers.delete('icy-metadata');
}
if (streamInfo.service === 'youtube' && !streamInfo.isHLS) {
return handleYoutubeStream(streamInfo, res);
if (serviceNeedsChunks.includes(streamInfo.service) && !streamInfo.isHLS) {
return handleChunkedStream(streamInfo, res);
}
return handleGenericStream(streamInfo, res);