@remotion/renderer/dist/serve-handler/range-parser.js

Render Remotion videos using Node.js or Bun

"use strict";
/*!
 * range-parser
 * Copyright(c) 2012-2014 TJ Holowaychuk
 * Copyright(c) 2015-2016 Douglas Christopher Wilson
 * MIT Licensed
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.rangeParser = void 0;
const rangeParser = (size, str) => {
    if (typeof str !== 'string') {
        throw new TypeError('argument str must be a string');
    }
    const index = str.indexOf('=');
    if (index === -1) {
        return -2;
    }
    // split the range string
    const arr = str.slice(index + 1).split(',');
    const ranges = [];
    // add ranges type
    const type = str.slice(0, index);
    // parse all ranges
    for (let i = 0; i < arr.length; i++) {
        const range = arr[i].split('-');
        let start = parseInt(range[0], 10);
        let end = parseInt(range[1], 10);
        // -nnn
        if (isNaN(start)) {
            start = size - end;
            end = size - 1;
            // nnn-
        }
        else if (isNaN(end)) {
            end = size - 1;
        }
        // limit last-byte-pos to current length
        if (end > size - 1) {
            end = size - 1;
        }
        // invalid or unsatisifiable
        if (isNaN(start) || isNaN(end) || start > end || start < 0) {
            continue;
        }
        // add range
        ranges.push({
            start,
            end,
        });
    }
    if (ranges.length < 1) {
        // unsatisifiable
        return -1;
    }
    return { ranges, type };
};
exports.rangeParser = rangeParser;