Function transform

js/worker.js:537–549

(chunk, controller)

        },
        transform(chunk, controller) {
            // udp message 2 byte is the the length of udp data
            // TODO: this should have bug, beacsue maybe udp chunk can be in two websocket message
            for (let index = 0; index < chunk.byteLength;) {
                const lengthBuffer = chunk.slice(index, index + 2);
                const udpPakcetLength = new DataView(lengthBuffer).getUint16(0);
                const udpData = new Uint8Array(
                    chunk.slice(index + 2, index + 2 + udpPakcetLength)
                );
                index = index + 2 + udpPakcetLength;
                controller.enqueue(udpData);
            }
        },
        flush(controller) {
        }
    });