@remotion/media-parser/dist/containers/iso-base-media/mdat/postprocess-bytes.js

A pure JavaScript library for parsing video files

"use strict";
// Addressing the issue of audio that is stored in big-endian format!
// If a "twos" atom is present, that is the case.
// The samples are stored internally in small chunks, like 4 bytes
// but WebCodecs does not accept such small chunks.
Object.defineProperty(exports, "__esModule", { value: true });
exports.postprocessBytes = void 0;
// When entering this function, they are already concatenated, but in litte endian order.
// This function reverses the bytes in each chunk, so that they are in big-endian order.
const postprocessBytes = ({ bytes, bigEndian, chunkSize, }) => {
    if (!bigEndian) {
        return bytes;
    }
    if (chunkSize === null) {
        return bytes;
    }
    const newBuffer = new Uint8Array(bytes);
    for (let i = 0; i < newBuffer.length; i += chunkSize) {
        const slice = newBuffer.slice(i, i + chunkSize);
        slice.reverse();
        newBuffer.set(slice, i);
    }
    return newBuffer;
};
exports.postprocessBytes = postprocessBytes;