diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/exif.php | 57 |
1 files changed, 46 insertions, 11 deletions
diff --git a/lib/exif.php b/lib/exif.php index 1b6c2cbd2..1bebb5fdc 100644 --- a/lib/exif.php +++ b/lib/exif.php @@ -1,14 +1,20 @@ <?php include_once dirname(__FILE__) . "/tidypics.php"; -function td_get_exif(Elggfile $file) { - $my_file = str_replace("image", "", tp_get_img_dir()) . $file->getFilename(); - $exif = exif_read_data($my_file); +function td_get_exif($file_guid) { + $file = new ElggFile($file_guid); + $filename = $file->getFilenameOnFilestore(); + $exif = exif_read_data($filename); create_metadata($file->getGUID(), "tp_exif", serialize($exif), "string", $file->getObjectOwnerGUID(), 2); } function tp_exif_formatted($file_guid) { $metadata_exif = get_metadata_byname($file_guid, "tp_exif"); + if(!$metadata_exif) { //try to load it from the file if its not in the database + td_get_exif($file_guid); + $metadata_exif = get_metadata_byname($file_guid, "tp_exif"); + } + if($metadata_exif) { $exif = unserialize($metadata_exif["value"]); @@ -16,18 +22,47 @@ function tp_exif_formatted($file_guid) { //convert the raw values to understandible values $Fnumber = explode("/", $exif['FNumber']); $Fnumber = $Fnumber[0] / $Fnumber[1]; + if(!$Fnumber) { + $Fnumber = "N/A"; + } else { + $Fnumber = "f/$Fnumber"; + } + $Focal = explode("/", $exif['FocalLength']); $Focal = $Focal[0] / $Focal[1]; + if(!$Focal || round($Focal) == "0") $Focal = 0; + if(round($Focal) == 0) { + $Focal = "N/A"; + } else { + $Focal = round($Focal) . "mm"; + } + + $model = $exif['Model']; + if(!$model) $model = "N/A"; + + $exposure = $exif['ExposureTime']; + if(!$exposure) $exposure = "N/A"; + + $iso = $exif['ISOSpeedRatings']; + if(!$iso) $iso = "N/A"; + + $captured = $exif['DateTime']; + if(!$captured) $captured = "N/A"; //prepare the text for return - $exif_text = "Model: ".$exif['Model']."<br>"; - $exif_text .= "Shutter: ".$exif['ExposureTime']."<br>"; - $exif_text .= "Aperture: f/".$Fnumber."<br>"; - $exif_text .= "ISO Speed: ".$exif['ISOSpeedRatings']."<br>"; - $exif_text .= "Focal Length: ".round($Focal)."mm<br>"; - $exif_text .= "Captured: ". $exif['DateTime']; - - return "<tr><td>$exif_text</td></tr>"; + + $exif_text = "Model: ".$model."<br>"; + $exif_text .= "Shutter: ".$exposure."<br>"; + $exif_text .= "Aperture: ".$Fnumber."<br>"; + $exif_text .= "ISO Speed: ".$iso."<br>"; + if(round($Focal) == 0) { + $exif_text .= "Focal Length: N/A<br>"; + } else { + $exif_text .= "Focal Length: " . round($Focal) . "mm<br />"; + } + $exif_text .= "Captured: ". $captured; + + return $exif_text; } else { return false; } |