gdImageJpeg      2993 ext/gd/gd.c    	_php_image_output(INTERNAL_FUNCTION_PARAM_PASSTHRU, PHP_GDIMG_TYPE_JPG, "JPEG", gdImageJpeg);
gdImageJpeg       480 ext/gd/libgd/gd.h void gdImageJpeg(gdImagePtr im, FILE *out, int quality);
gdImageJpeg       280 ext/gd/libgd/gdtest.c   gdImageJpeg (im, out, -1);