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| author | Greg Froese <greg.froese@gmail.com> | 2009-05-20 05:01:21 +0000 |
|---|---|---|
| committer | Greg Froese <greg.froese@gmail.com> | 2009-05-20 05:01:21 +0000 |
| commit | 12a27fa3b501cf08091cd063dd3208a17e0f624a (patch) | |
| tree | d993e49523465f2e2d8e856785072526a72cff30 /lib/exif.php | |
| parent | 63b91d8aee8e40497d865591d16ee1716e0c9c15 (diff) | |
| download | elgg-12a27fa3b501cf08091cd063dd3208a17e0f624a.tar.gz elgg-12a27fa3b501cf08091cd063dd3208a17e0f624a.tar.bz2 | |
added exif support
Diffstat (limited to 'lib/exif.php')
| -rw-r--r-- | lib/exif.php | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/exif.php b/lib/exif.php new file mode 100644 index 000000000..1b6c2cbd2 --- /dev/null +++ b/lib/exif.php @@ -0,0 +1,35 @@ +<?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); + 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) { + $exif = unserialize($metadata_exif["value"]); + + //got the code snippet below from http://www.zenphoto.org/support/topic.php?id=17 + //convert the raw values to understandible values + $Fnumber = explode("/", $exif['FNumber']); + $Fnumber = $Fnumber[0] / $Fnumber[1]; + $Focal = explode("/", $exif['FocalLength']); + $Focal = $Focal[0] / $Focal[1]; + + //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>"; + } else { + return false; + } +} +?>
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