# Pastebin Q5chYDZK
    init_put_bits(&pb, pkt->data, size);
    const uint16_t *y = (const uint16_t *)pic->data[0];
    int h;
    for (h = 0; h < avctx->height; h++) {
        int w;
        for (w = 0; w < avctx->width; w++) {
            put_bits(&pb, 10, y[w] & 0x3ff);
        }
        y += pic->linesize[0] / 2;
    }

    flush_put_bits(&pb);