@svta/common-media-library/dist/iso/8601/encodeIso8601Duration.js

A common library for media playback in JavaScript

/**
 * Encode a duration in seconds to an ISO 8601 duration string.
 *
 * @param duration - Duration in seconds.
 * @returns ISO 8601 duration string.
 *
 * @group ISO 8601
 * @beta
 *
 * @example
 * {@includeCode ../../../test/iso/8601/encodeIso8601Duration.test.ts#example}
 */
export function encodeIso8601Duration(duration) {
    if (!isFinite(duration)) {
        return 'PT';
    }
    const hours = Math.floor(duration / 3600);
    const minutes = Math.floor((duration % 3600) / 60);
    const seconds = duration % 60;
    if (hours > 0) {
        return `PT${hours}H${minutes}M${seconds}S`;
    }
    else if (minutes > 0) {
        return `PT${minutes}M${seconds}S`;
    }
    return `PT${seconds}S`;
}
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