@svta/common-media-library/dist/dash/parseFrameRate.js

A common library for media playback in JavaScript

/**
 * Parses a DASH framerate string into a number.
 *
 * @param frameRate - The frame rate string to parse.
 * @returns The frame rate as a number.
 *
 * @group DASH
 * @beta
 *
 * @example
 * {@includeCode ../../test/dash/parseFrameRate.test.ts#example}
 */
export function parseFrameRate(frameRate) {
    const [numerator, denominator] = frameRate.split('/').map(value => parseInt(value, 10));
    if (denominator === undefined) {
        return numerator;
    }
    if (isNaN(numerator) || isNaN(denominator) || denominator === 0) {
        return NaN;
    }
    return numerator / denominator;
}
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