public void jpeg_default_qtables(bool force_baseline)
{
/* Set up two quantization tables using the specified scaling */
jpeg_add_quant_table(0, std_luminance_quant_tbl, q_scale_factor[0], force_baseline);
jpeg_add_quant_table(1, std_chrominance_quant_tbl, q_scale_factor[1], force_baseline);
}