Samuel Kent
61 lines
2.1 KiB
JavaScript
61 lines
2.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.AbstractID3Parser = void 0;
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const core_1 = require("strtok3/lib/core");
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const ID3v2Token_1 = require("./ID3v2Token");
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const ID3v2Parser_1 = require("./ID3v2Parser");
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const ID3v1Parser_1 = require("../id3v1/ID3v1Parser");
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const _debug = require("debug");
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const BasicParser_1 = require("../common/BasicParser");
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const debug = _debug('music-metadata:parser:ID3');
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/**
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* Abstract parser which tries take ID3v2 and ID3v1 headers.
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*/
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class AbstractID3Parser extends BasicParser_1.BasicParser {
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constructor() {
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super(...arguments);
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this.id3parser = new ID3v2Parser_1.ID3v2Parser();
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}
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static async startsWithID3v2Header(tokenizer) {
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return (await tokenizer.peekToken(ID3v2Token_1.ID3v2Header)).fileIdentifier === 'ID3';
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}
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async parse() {
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try {
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await this.parseID3v2();
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}
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catch (err) {
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if (err instanceof core_1.EndOfStreamError) {
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debug(`End-of-stream`);
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}
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else {
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throw err;
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}
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}
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}
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finalize() {
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return;
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}
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async parseID3v2() {
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await this.tryReadId3v2Headers();
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debug("End of ID3v2 header, go to MPEG-parser: pos=%s", this.tokenizer.position);
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await this._parse();
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if (this.options.skipPostHeaders && this.metadata.hasAny()) {
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this.finalize();
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}
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else {
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const id3v1parser = new ID3v1Parser_1.ID3v1Parser();
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await id3v1parser.init(this.metadata, this.tokenizer, this.options).parse();
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this.finalize();
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}
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}
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async tryReadId3v2Headers() {
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const id3Header = await this.tokenizer.peekToken(ID3v2Token_1.ID3v2Header);
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if (id3Header.fileIdentifier === "ID3") {
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debug("Found ID3v2 header, pos=%s", this.tokenizer.position);
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await this.id3parser.parse(this.metadata, this.tokenizer, this.options);
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return this.tryReadId3v2Headers();
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}
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}
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}
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exports.AbstractID3Parser = AbstractID3Parser;
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