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exiftool_resolution_calc()

Description

Set resource dimensions using data from exiftool.

Parameters

ColumnTypeDefaultDescription
$file_path string Path to the original file.
$ref int Reference of the resource.
$remove_original boolean false Option to remove the original record. Used by update_resource_dimensions.php

Return

void

Location

include/metadata_functions.php lines 392 to 440

Definition

 
function exiftool_resolution_calc($file_path, $ref, $remove_original = false)
    {
    $exiftool_fullpath = get_utility_path("exiftool");
    $command = $exiftool_fullpath . " -s -s -s -t -composite:imagesize -xresolution -resolutionunit " . escapeshellarg($file_path);
    $dimensions_resolution_unit=explode("\t",run_command($command));
        
    # if dimensions resolution and unit could be extracted, add them to the database.
    # they can be used in view.php to give more accurate data.
    if (count($dimensions_resolution_unit)>=1 && $dimensions_resolution_unit[0]!='')
        {
        if ($remove_original)
            {
            ps_query("DELETE FROM resource_dimensions WHERE resource= ?", ['i', $ref]);
            }
        $wh=explode("x",$dimensions_resolution_unit[0]);
        if(count($wh)>1)
            {
            $width=$wh[0];
            $height=$wh[1];
            $filesize=filesize_unlimited($file_path);
            $sql_insert ="insert into resource_dimensions (resource,width,height,file_size";
            $sql_params = [
                's', $ref,
                'i', $width,
                'i', $height,
                's', $filesize
            ];
            
            if(count($dimensions_resolution_unit)>=2)
                {
                $resolution=$dimensions_resolution_unit[1];
                $sql_insert.=",resolution";
                $sql_params[] = 's'; $sql_params[] = $resolution;
                
                if(count($dimensions_resolution_unit)>=3)
                    {
                    $unit=$dimensions_resolution_unit[2];
                    $sql_insert.=",unit";
                    $sql_params[] = 's'; $sql_params[] = $unit;
                    }
                }
                
            $sql_insert.=")";
            $sql_values = "values (". ps_param_insert((count($sql_params)/2)) .")";
            $sql=$sql_insert.$sql_values;
            ps_query($sql, $sql_params);
            }
        }
    }

This article was last updated 4th December 2024 08:35 Europe/London time based on the source file dated 6th March 2024 14:45 Europe/London time.