Adolfo Reyna
50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.getAudioData = void 0;
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const fetch_with_cors_catch_1 = require("./fetch-with-cors-catch");
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const is_remote_asset_1 = require("./is-remote-asset");
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const p_limit_1 = require("./p-limit");
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const metadataCache = {};
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const limit = (0, p_limit_1.pLimit)(3);
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const fn = async (src, options) => {
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var _a;
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if (metadataCache[src]) {
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return metadataCache[src];
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}
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if (typeof document === 'undefined') {
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throw new Error('getAudioData() is only available in the browser.');
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}
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const audioContext = new AudioContext({
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sampleRate: (_a = options === null || options === void 0 ? void 0 : options.sampleRate) !== null && _a !== void 0 ? _a : 48000,
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});
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const response = await (0, fetch_with_cors_catch_1.fetchWithCorsCatch)(src);
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if (!response.ok) {
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throw new Error(`Failed to fetch audio data from ${src}: ${response.status} ${response.statusText}`);
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}
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const arrayBuffer = await response.arrayBuffer();
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const wave = await audioContext.decodeAudioData(arrayBuffer);
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const channelWaveforms = new Array(wave.numberOfChannels)
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.fill(true)
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.map((_, channel) => {
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return wave.getChannelData(channel);
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});
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const metadata = {
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channelWaveforms,
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sampleRate: wave.sampleRate,
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durationInSeconds: wave.duration,
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numberOfChannels: wave.numberOfChannels,
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resultId: String(Math.random()),
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isRemote: (0, is_remote_asset_1.isRemoteAsset)(src),
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};
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metadataCache[src] = metadata;
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return metadata;
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};
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/*
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* @description Takes an audio or video src, loads it and returns data and metadata for the specified source.
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* @see [Documentation](https://remotion.dev/docs/get-audio-data)
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*/
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const getAudioData = (src, options) => {
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return limit(fn, src, options);
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};
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exports.getAudioData = getAudioData;
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