pomljs/dist/util/audio.js

Prompt Orchestration Markup Language

import * as fs from 'fs';
import path__default from 'path';

function readAudio(src, base64) {
    if (src) {
        return fs.readFileSync(src);
    }
    if (base64) {
        return Buffer.from(base64, 'base64');
    }
    throw new Error('src or base64 is required');
}
function canonicalizeType(type, src) {
    if (type) {
        return type.startsWith('audio/') ? type : `audio/${type}`;
    }
    if (src) {
        const ext = path__default.extname(src).toLowerCase();
        switch (ext) {
            case '.mp3': return 'audio/mpeg';
            case '.wav': return 'audio/wav';
            case '.ogg': return 'audio/ogg';
            case '.flac': return 'audio/flac';
            case '.aac': return 'audio/aac';
            default: throw new Error('Cannot determine audio format');
        }
    }
    throw new Error('Cannot determine audio format');
}
async function preprocessAudio(args) {
    const { src, base64, type } = args;
    const buffer = readAudio(src, base64);
    const mimeType = canonicalizeType(type, src);
    return {
        base64: buffer.toString('base64'),
        mimeType,
    };
}

export { preprocessAudio };
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