Description
Get detailed Exif information about the media file.
Data Selection
- FILE
- EXIF
- GPS
Sibling plugin
- Can use the tags generated by this plugin in the following plugin.
- Exif Caption.
Special Thanks! Test data provider
Sample using snippet 1 & 3
Sample of how to use the filter hook and action hook
- Sample snippet 1
/** ==================================================
* Sample snippet 1
*
* The original filter hook('exif_details_data'),
* which changes the display when retrieving an Exif and storing it in metadata.
* The following changes the display of the shooting date and time.
*
* @param array $exifdatas exifdatas.
* @param int $id id.
*/
function exif_details_change( $exifdatas, $id ) {
if ( array_key_exists( 'DateTimeOriginal', $exifdatas ) ) {
$shooting_date = str_replace( ':', '-', substr( $exifdatas['DateTimeOriginal'], 0, 10 ) );
$shooting_time = substr( $exifdatas['DateTimeOriginal'], 10 );
$exifdatas['DateTimeOriginal'] = $shooting_date . $shooting_time;
}
return $exifdatas;
}
add_filter( 'exif_details_data', 'exif_details_change', 10, 2 );
- Sample snippet 2
/** ==================================================
* Sample snippet 2
*
* Retrieve the post metadata and add the date and time of the shooting to the title of the media page.
* Execute the original action hook('exif_details_update') in the function.
*
* @param array $title title.
* @param int $id id.
*/
function media_title( $title, $id ) {
$datetime = null;
if ( is_attachment() ) {
do_action( 'exif_details_update', $id );
$exifdatas = get_post_meta( $id, '_exif_details', true );
if ( ! empty( $exifdatas ) && array_key_exists( 'DateTimeOriginal', $exifdatas ) ) {
$datetime = ' Date:' . $exifdatas['DateTimeOriginal'];
}
}
return $title . $datetime;
}
add_filter( 'the_title', 'media_title', 10, 2 );
- Sample snippet 3
/** ==================================================
* Sample snippet 3
*
* When adding new media, insert the processed data into the caption.
* Use the original action hook ('exif_details_update') with function.
*
* @param array $metadata metadata.
* @param int $id id.
*/
function media_caption( $metadata, $id ) {
$mime_type = get_post_mime_type( $id );
if ( in_array( $mime_type, array( 'image/jpeg', 'image/tiff' ) ) ) {
do_action( 'exif_details_update', $id );
$exifdatas = get_post_meta( $id, '_exif_details', true );
if ( ! empty( $exifdatas ) ) {
$camera = null;
$f_number = null;
$s_speed = null;
$iso = null;
$date = null;
$googlemap = null;
if ( array_key_exists( 'Model', $exifdatas ) ) {
$camera = 'Camera:' . $exifdatas['Model'];
}
if ( array_key_exists( 'ApertureFNumber', $exifdatas ) ) {
$f_number = 'F-number:' . $exifdatas['ApertureFNumber'];
}
if ( array_key_exists( 'ExposureTime', $exifdatas ) ) {
$s_speed = 'Shutter speed:' . $exifdatas['ExposureTime'];
}
if ( array_key_exists( 'ISOSpeedRatings', $exifdatas ) ) {
$isodata = json_decode( $exifdatas['ISOSpeedRatings'] );
if ( is_array( $isodata ) ) {
$iso = 'ISO:' . $isodata[0];
} else {
$iso = 'ISO:' . $isodata;
}
}
if ( array_key_exists( 'DateTimeOriginal', $exifdatas ) ) {
$date = 'Date:' . $exifdatas['DateTimeOriginal'];
}
if ( array_key_exists( 'latitude_dd', $exifdatas ) && array_key_exists( 'longtitude_dd', $exifdatas ) ) {
$googlemap = '<a href="https://www.google.com/maps?q=' . $exifdatas['latitude_dd'] . ',' . $exifdatas['longtitude_dd'] . '">Google Map</a>';
}
$caption = sprintf( '%1$s %2$s %3$s %4$s %5$s %6$s', $camera, $f_number, $s_speed, $iso, $date, $googlemap );
$caption = rtrim( $caption );
$caption = preg_replace( '/s(?=s)/', '', $caption );
$media_post = array(
'ID' => $id,
'post_excerpt' => $caption,
);
wp_update_post( $media_post );
}
}
return $metadata;
}
add_filter( 'wp_generate_attachment_metadata', 'media_caption', 10, 2 );