Adolfo Reyna
67 lines
2.9 KiB
JavaScript
67 lines
2.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.getSilentParts = void 0;
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const compositor_1 = require("./compositor/compositor");
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/*
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* @description Gets the silent parts of a video or audio in Node.js. Useful for cutting out silence from a video.
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* @see [Documentation](https://www.remotion.dev/docs/renderer/get-silent-parts)
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*/
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const getSilentParts = async ({ src, noiseThresholdInDecibels: passedNoiseThresholdInDecibels, minDurationInSeconds: passedMinDuration, logLevel, binariesDirectory, }) => {
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const compositor = (0, compositor_1.startLongRunningCompositor)({
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maximumFrameCacheItemsInBytes: null,
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logLevel: logLevel !== null && logLevel !== void 0 ? logLevel : 'info',
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indent: false,
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binariesDirectory: binariesDirectory !== null && binariesDirectory !== void 0 ? binariesDirectory : null,
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extraThreads: 0,
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});
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const minDurationInSeconds = passedMinDuration !== null && passedMinDuration !== void 0 ? passedMinDuration : 1;
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if (typeof minDurationInSeconds !== 'number') {
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throw new Error(`minDurationInSeconds must be a number, but was ${minDurationInSeconds}`);
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}
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if (minDurationInSeconds <= 0) {
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throw new Error(`minDurationInSeconds must be greater than 0, but was ${minDurationInSeconds}`);
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}
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const noiseThresholdInDecibels = passedNoiseThresholdInDecibels !== null && passedNoiseThresholdInDecibels !== void 0 ? passedNoiseThresholdInDecibels : -20;
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if (typeof noiseThresholdInDecibels !== 'number') {
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throw new Error(`noiseThresholdInDecibels must be a number, but was ${noiseThresholdInDecibels}`);
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}
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if (noiseThresholdInDecibels >= 30) {
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throw new Error(`noiseThresholdInDecibels must be less than 30, but was ${noiseThresholdInDecibels}`);
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}
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const res = await compositor.executeCommand('GetSilences', {
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src,
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minDurationInSeconds,
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noiseThresholdInDecibels,
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});
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const response = JSON.parse(new TextDecoder('utf-8').decode(res));
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await compositor.finishCommands();
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await compositor.waitForDone();
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const { silentParts, durationInSeconds } = response;
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return {
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silentParts,
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audibleParts: getAudibleParts({ silentParts, durationInSeconds }),
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durationInSeconds,
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};
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};
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exports.getSilentParts = getSilentParts;
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const getAudibleParts = ({ silentParts, durationInSeconds, }) => {
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const audibleParts = [];
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let lastEnd = 0;
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for (const silentPart of silentParts) {
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if (silentPart.startInSeconds - lastEnd > 0) {
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audibleParts.push({
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startInSeconds: lastEnd,
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endInSeconds: silentPart.startInSeconds,
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});
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}
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lastEnd = silentPart.endInSeconds;
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}
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if (durationInSeconds - lastEnd > 0) {
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audibleParts.push({
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startInSeconds: lastEnd,
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endInSeconds: durationInSeconds,
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});
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}
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return audibleParts;
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};
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