Initial working version

node_modules/music-metadata/lib/aiff/AiffParser.d.ts

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+import { BasicParser } from '../common/BasicParser';
+import * as iff from '../iff';
+/**
+ * AIFF - Audio Interchange File Format
+ *
+ * Ref:
+ *  http://www.onicos.com/staff/iz/formats/aiff.html
+ *  http://muratnkonar.com/aiff/index.html
+ *  http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/AIFF/AIFF.html
+ */
+export declare class AIFFParser extends BasicParser {
+    private isCompressed;
+    parse(): Promise<void>;
+    readData(header: iff.IChunkHeader): Promise<number>;
+}

node_modules/music-metadata/lib/aiff/AiffParser.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AIFFParser = void 0;
+const Token = require("token-types");
+const initDebug = require("debug");
+const strtok3 = require("strtok3/lib/core");
+const ID3v2Parser_1 = require("../id3v2/ID3v2Parser");
+const FourCC_1 = require("../common/FourCC");
+const BasicParser_1 = require("../common/BasicParser");
+const AiffToken = require("./AiffToken");
+const iff = require("../iff");
+const debug = initDebug('music-metadata:parser:aiff');
+/**
+ * AIFF - Audio Interchange File Format
+ *
+ * Ref:
+ *  http://www.onicos.com/staff/iz/formats/aiff.html
+ *  http://muratnkonar.com/aiff/index.html
+ *  http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/AIFF/AIFF.html
+ */
+class AIFFParser extends BasicParser_1.BasicParser {
+    async parse() {
+        const header = await this.tokenizer.readToken(iff.Header);
+        if (header.chunkID !== 'FORM')
+            throw new Error('Invalid Chunk-ID, expected \'FORM\''); // Not AIFF format
+        const type = await this.tokenizer.readToken(FourCC_1.FourCcToken);
+        switch (type) {
+            case 'AIFF':
+                this.metadata.setFormat('container', type);
+                this.isCompressed = false;
+                break;
+            case 'AIFC':
+                this.metadata.setFormat('container', 'AIFF-C');
+                this.isCompressed = true;
+                break;
+            default:
+                throw Error('Unsupported AIFF type: ' + type);
+        }
+        this.metadata.setFormat('lossless', !this.isCompressed);
+        try {
+            while (!this.tokenizer.fileInfo.size || this.tokenizer.fileInfo.size - this.tokenizer.position >= iff.Header.len) {
+                debug('Reading AIFF chunk at offset=' + this.tokenizer.position);
+                const chunkHeader = await this.tokenizer.readToken(iff.Header);
+                debug(`Chunk id=${chunkHeader.chunkID}`);
+                const nextChunk = 2 * Math.round(chunkHeader.chunkSize / 2);
+                const bytesRead = await this.readData(chunkHeader);
+                await this.tokenizer.ignore(nextChunk - bytesRead);
+            }
+        }
+        catch (err) {
+            if (err instanceof strtok3.EndOfStreamError) {
+                debug(`End-of-stream`);
+            }
+            else {
+                throw err;
+            }
+        }
+    }
+    async readData(header) {
+        switch (header.chunkID) {
+            case 'COMM': // The Common Chunk
+                const common = await this.tokenizer.readToken(new AiffToken.Common(header, this.isCompressed));
+                this.metadata.setFormat('bitsPerSample', common.sampleSize);
+                this.metadata.setFormat('sampleRate', common.sampleRate);
+                this.metadata.setFormat('numberOfChannels', common.numChannels);
+                this.metadata.setFormat('numberOfSamples', common.numSampleFrames);
+                this.metadata.setFormat('duration', common.numSampleFrames / common.sampleRate);
+                this.metadata.setFormat('codec', common.compressionName);
+                return header.chunkSize;
+            case 'ID3 ': // ID3-meta-data
+                const id3_data = await this.tokenizer.readToken(new Token.Uint8ArrayType(header.chunkSize));
+                const rst = strtok3.fromBuffer(id3_data);
+                await new ID3v2Parser_1.ID3v2Parser().parse(this.metadata, rst, this.options);
+                return header.chunkSize;
+            case 'SSND': // Sound Data Chunk
+                if (this.metadata.format.duration) {
+                    this.metadata.setFormat('bitrate', 8 * header.chunkSize / this.metadata.format.duration);
+                }
+                return 0;
+            default:
+                return 0;
+        }
+    }
+}
+exports.AIFFParser = AIFFParser;

node_modules/music-metadata/lib/aiff/AiffToken.d.ts

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+/// <reference types="node" />
+import * as iff from '../iff';
+import { IGetToken } from "strtok3";
+/**
+ * The Common Chunk.
+ * Describes fundamental parameters of the waveform data such as sample rate, bit resolution, and how many channels of
+ * digital audio are stored in the FORM AIFF.
+ */
+export interface ICommon {
+    numChannels: number;
+    numSampleFrames: number;
+    sampleSize: number;
+    sampleRate: number;
+    compressionType?: string;
+    compressionName?: string;
+}
+export declare class Common implements IGetToken<ICommon> {
+    private isAifc;
+    len: number;
+    constructor(header: iff.IChunkHeader, isAifc: boolean);
+    get(buf: Buffer, off: number): ICommon;
+}

node_modules/music-metadata/lib/aiff/AiffToken.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Common = void 0;
+const Token = require("token-types");
+const FourCC_1 = require("../common/FourCC");
+class Common {
+    constructor(header, isAifc) {
+        this.isAifc = isAifc;
+        const minimumChunkSize = isAifc ? 22 : 18;
+        if (header.chunkSize < minimumChunkSize)
+            throw new Error(`COMMON CHUNK size should always be at least ${minimumChunkSize}`);
+        this.len = header.chunkSize;
+    }
+    get(buf, off) {
+        // see: https://cycling74.com/forums/aiffs-80-bit-sample-rate-value
+        const shift = buf.readUInt16BE(off + 8) - 16398;
+        const baseSampleRate = buf.readUInt16BE(off + 8 + 2);
+        const res = {
+            numChannels: buf.readUInt16BE(off),
+            numSampleFrames: buf.readUInt32BE(off + 2),
+            sampleSize: buf.readUInt16BE(off + 6),
+            sampleRate: shift < 0 ? baseSampleRate >> Math.abs(shift) : baseSampleRate << shift
+        };
+        if (this.isAifc) {
+            res.compressionType = FourCC_1.FourCcToken.get(buf, off + 18);
+            if (this.len > 22) {
+                const strLen = buf.readInt8(off + 22);
+                const padding = (strLen + 1) % 2;
+                if (23 + strLen + padding === this.len) {
+                    res.compressionName = new Token.StringType(strLen, 'binary').get(buf, off + 23);
+                }
+                else {
+                    throw new Error('Illegal pstring length');
+                }
+            }
+        }
+        else {
+            res.compressionName = 'PCM';
+        }
+        return res;
+    }
+}
+exports.Common = Common;