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perf: Cache deciphered n-params by info response (#505)

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absidue
2023-09-17 23:52:32 +02:00
committed by GitHub
parent 68df321858
commit d2959b3a55
3 changed files with 43 additions and 20 deletions
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10
src/parser/classes/misc/Format.ts
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@@ -3,6 +3,8 @@ import { InnertubeError } from '../../../utils/Utils.js';
import type { RawNode } from '../../index.js';
export default class Format {
#this_response_nsig_cache?: Map<string, string>;
itag: number;
mime_type: string;
is_type_otf: boolean;
@@ -52,7 +54,11 @@ export default class Format {
matrix_coefficients?: string;
};
constructor(data: RawNode) {
constructor(data: RawNode, this_response_nsig_cache?: Map<string, string>) {
if (this_response_nsig_cache) {
this.#this_response_nsig_cache = this_response_nsig_cache;
}
this.itag = data.itag;
this.mime_type = data.mimeType;
this.is_type_otf = data.type === 'FORMAT_STREAM_TYPE_OTF';
@@ -122,6 +128,6 @@ export default class Format {
*/
decipher(player: Player | undefined): string {
if (!player) throw new InnertubeError('Cannot decipher format, this session appears to have no valid player.');
return player.decipher(this.url, this.signature_cipher, this.cipher);
return player.decipher(this.url, this.signature_cipher, this.cipher, this.#this_response_nsig_cache);
}
}