@remotion/media-parser/dist/readers/fetch/get-body-and-reader.js

A pure JavaScript library for parsing video files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getLengthAndReader = void 0;
const getLengthAndReader = async ({ canLiveWithoutContentLength, res, ownController, requestedWithoutRange, }) => {
    const length = res.headers.get('content-length');
    const contentLength = length === null ? null : parseInt(length, 10);
    if (requestedWithoutRange ||
        (canLiveWithoutContentLength && contentLength === null)) {
        const buffer = await res.arrayBuffer();
        const encoded = new Uint8Array(buffer);
        let streamCancelled = false;
        const stream = new ReadableStream({
            start(controller) {
                if (ownController.signal.aborted) {
                    return;
                }
                if (streamCancelled) {
                    return;
                }
                try {
                    controller.enqueue(encoded);
                    controller.close();
                }
                catch (_a) {
                    // sometimes on windows after aborting on node 16		: Invalid state: ReadableStreamDefaultController is not in a state where chunk can be enqueued
                }
            },
            cancel() {
                streamCancelled = true;
            },
        });
        return {
            contentLength: encoded.byteLength,
            reader: {
                reader: stream.getReader(),
                abort: () => {
                    ownController.abort();
                    return Promise.resolve();
                },
            },
            needsContentRange: false,
        };
    }
    if (!res.body) {
        throw new Error('No body');
    }
    const reader = res.body.getReader();
    return {
        reader: {
            reader,
            abort: () => {
                ownController.abort();
                return Promise.resolve();
            },
        },
        contentLength,
        needsContentRange: true,
    };
};
exports.getLengthAndReader = getLengthAndReader;