Snippet for “Exif Details”

Introduction

Exif Details plugin has been released. Here is a snippet that uses it.

メディアファイルの詳細な EXIF 情報を取得します。
(0) 最終更新: 6か月 前
60以上サイトで有効化中 検証済み: 5.5.3
ダウンロード: リリース: 2020-05-05

How it works

Snippet

/**  ==================================================
 * 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 );

/**  ==================================================
 * 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 );

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