<?php /*!******************************************************************************* *! FILE NAME : camvars.php *! DESCRIPTION: read/write camera internal variables by name *! Copyright (C) 2008 Elphel, Inc *! -----------------------------------------------------------------------------** *! *! This program is free software: you can redistribute it and/or modify *! it under the terms of the GNU General Public License as published by *! the Free Software Foundation, either version 3 of the License, or *! (at your option) any later version. *! *! This program is distributed in the hope that it will be useful, *! but WITHOUT ANY WARRANTY; without even the implied warranty of *! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *! GNU General Public License for more details. *! *! You should have received a copy of the GNU General Public License *! along with this program. If not, see <http://www.gnu.org/licenses/>. *! -----------------------------------------------------------------------------** *! $Log: camvars.php,v $ *! Revision 1.1.1.1 2008/11/27 20:04:03 elphel *! *! *! Revision 1.2 2008/11/22 05:58:24 elphel *! modifying to match elphel_set_P_value() *! *! Revision 1.2 2008/04/17 22:37:57 elphel *! bug fix *! *! Revision 1.1 2008/03/22 04:41:07 elphel *! Script to set/get camera parameters with HTTP GET (result as XML) *! *! */ if (count($_GET)==0) { echo <<<USAGE <p>This script returns camera variables as XML file, it also allows you to set those variables. Usually those changes will not take effect immediately - please use ccam.php that both changes variables and programs the camera to use them.</p> <p>The variable names to be read are specified without values (like camvar.php?WOI_WIDTH&WOI_HEIGHT ), the ones to be written - with the values (camvar.php?QUALITY=75). It is also possible to mix both types in the same request.</p> USAGE; exit (0); } $toRead=array(); $toWrite=array(); foreach($_GET as $key=>$value) { if ($value==="") $toRead[$key]=$value; else $toWrite[$key]=(integer) $value; } $npars=(count($toWrite)>0)?elphel_set_P_arr($toWrite):0; if (count($toRead)>0) $toRead=elphel_get_P_arr($toRead); if ($_GET["STATE"]!==NULL) $toRead["STATE"]=elphel_get_state(); $xml = new SimpleXMLElement("<?xml version='1.0' standalone='yes'?><camvars/>"); foreach ($toRead as $key=>$value) { $xml->addChild ($key,$value); } if (count($toWrite)>0) { $xml->addChild ('frame',$npars); } $rslt=$xml->asXML(); header("Content-Type: text/xml"); header("Content-Length: ".strlen($rslt)."\n"); header("Pragma: no-cache\n"); printf($rslt); ?>