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Improve buffer management for different platforms

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- Introduced `BUFFER_CONFIG` to define buffer sizes for various systems (webOS, Samsung Tizen, Android TV, desktop).
- Added `detectSystem()` function to determine the platform based on `navigator.userAgent`.
- Updated `Stream` constructor to use platform-specific buffer sizes dynamically.
- Added console log for debugging detected system and applied buffer size.
This commit is contained in:
Jesus 2025-03-08 16:32:26 -05:00
parent a6ca011202
commit 98603439cb
Signed by: heckyel
GPG Key ID: 531E723EED721D7C
1 changed files with 28 additions and 2 deletions
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30
youtube/static/js/av-merge.js
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@ -20,6 +20,29 @@
// TODO: Call abort to cancel in-progress appends?
// Buffer sizes for different systems
const BUFFER_CONFIG = {
default: 50 * 10**6, // 50 megabytes
webOS: 20 * 10**6, // 20 megabytes WebOS (LG)
samsungTizen: 20 * 10**6, // 20 megabytes Samsung Tizen OS
androidTV: 30 * 10**6, // 30 megabytes Android TV
desktop: 50 * 10**6, // 50 megabytes PC/Mac
};
function detectSystem() {
const userAgent = navigator.userAgent.toLowerCase();
if (/webos|lg browser/i.test(userAgent)) {
return "webOS";
} else if (/tizen/i.test(userAgent)) {
return "samsungTizen";
} else if (/android tv|smart-tv/i.test(userAgent)) {
return "androidTV";
} else if (/firefox|chrome|safari|edge/i.test(userAgent)) {
return "desktop";
} else {
return "default";
}
}
function AVMerge(video, srcInfo, startTime){
this.audioSource = null;
@ -164,6 +187,8 @@ AVMerge.prototype.printDebuggingInfo = function() {
}
function Stream(avMerge, source, startTime, avRatio) {
const selectedSystem = detectSystem();
let baseBufferTarget = BUFFER_CONFIG[selectedSystem] || BUFFER_CONFIG.default;
this.avMerge = avMerge;
this.video = avMerge.video;
this.url = source['url'];
@ -173,10 +198,11 @@ function Stream(avMerge, source, startTime, avRatio) {
this.mimeCodec = source['mime_codec']
this.streamType = source['acodec'] ? 'audio' : 'video';
if (this.streamType == 'audio') {
this.bufferTarget = avRatio*50*10**6;
this.bufferTarget = avRatio * baseBufferTarget;
} else {
this.bufferTarget = 50*10**6; // 50 megabytes
this.bufferTarget = baseBufferTarget;
}
console.info(`Detected system: ${selectedSystem}. Applying bufferTarget of ${this.bufferTarget} bytes to ${this.streamType}.`);
this.initRange = source['init_range'];
this.indexRange = source['index_range'];