wp_read_video_metadata

函数
wp_read_video_metadata ( $file )
参数
  • (string) $file Path to file.
    Required:
返回值
  • (array|false) Returns array of metadata, if found.
定义位置
相关方法
wp_read_image_metadatawp_read_audio_metadatawp_add_id3_tag_dataadd_metadatawp_admin_viewport_meta
引入
3.6.0
弃用
-

wp_read_video_metadata: 这个函数用来从一个视频文件中读取元数据(如标题、描述和持续时间)。它支持各种视频格式,包括MP4和FLV。

从视频文件的ID3标签中检索元数据。

function wp_read_video_metadata( $file ) {
	if ( ! file_exists( $file ) ) {
		return false;
	}

	$metadata = array();

	if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
		define( 'GETID3_TEMP_DIR', get_temp_dir() );
	}

	if ( ! class_exists( 'getID3', false ) ) {
		require ABSPATH . WPINC . '/ID3/getid3.php';
	}

	$id3 = new getID3();
	// Required to get the `created_timestamp` value.
	$id3->options_audiovideo_quicktime_ReturnAtomData = true; // phpcs:ignore WordPress.NamingConventions.ValidVariableName

	$data = $id3->analyze( $file );

	if ( isset( $data['video']['lossless'] ) ) {
		$metadata['lossless'] = $data['video']['lossless'];
	}

	if ( ! empty( $data['video']['bitrate'] ) ) {
		$metadata['bitrate'] = (int) $data['video']['bitrate'];
	}

	if ( ! empty( $data['video']['bitrate_mode'] ) ) {
		$metadata['bitrate_mode'] = $data['video']['bitrate_mode'];
	}

	if ( ! empty( $data['filesize'] ) ) {
		$metadata['filesize'] = (int) $data['filesize'];
	}

	if ( ! empty( $data['mime_type'] ) ) {
		$metadata['mime_type'] = $data['mime_type'];
	}

	if ( ! empty( $data['playtime_seconds'] ) ) {
		$metadata['length'] = (int) round( $data['playtime_seconds'] );
	}

	if ( ! empty( $data['playtime_string'] ) ) {
		$metadata['length_formatted'] = $data['playtime_string'];
	}

	if ( ! empty( $data['video']['resolution_x'] ) ) {
		$metadata['width'] = (int) $data['video']['resolution_x'];
	}

	if ( ! empty( $data['video']['resolution_y'] ) ) {
		$metadata['height'] = (int) $data['video']['resolution_y'];
	}

	if ( ! empty( $data['fileformat'] ) ) {
		$metadata['fileformat'] = $data['fileformat'];
	}

	if ( ! empty( $data['video']['dataformat'] ) ) {
		$metadata['dataformat'] = $data['video']['dataformat'];
	}

	if ( ! empty( $data['video']['encoder'] ) ) {
		$metadata['encoder'] = $data['video']['encoder'];
	}

	if ( ! empty( $data['video']['codec'] ) ) {
		$metadata['codec'] = $data['video']['codec'];
	}

	if ( ! empty( $data['audio'] ) ) {
		unset( $data['audio']['streams'] );
		$metadata['audio'] = $data['audio'];
	}

	if ( empty( $metadata['created_timestamp'] ) ) {
		$created_timestamp = wp_get_media_creation_timestamp( $data );

		if ( false !== $created_timestamp ) {
			$metadata['created_timestamp'] = $created_timestamp;
		}
	}

	wp_add_id3_tag_data( $metadata, $data );

	$file_format = isset( $metadata['fileformat'] ) ? $metadata['fileformat'] : null;

	/**
	 * Filters the array of metadata retrieved from a video.
	 *
	 * In core, usually this selection is what is stored.
	 * More complete data can be parsed from the `$data` parameter.
	 *
	 * @since 4.9.0
	 *
	 * @param array       $metadata    Filtered video metadata.
	 * @param string      $file        Path to video file.
	 * @param string|null $file_format File format of video, as analyzed by getID3.
	 *                                 Null if unknown.
	 * @param array       $data        Raw metadata from getID3.
	 */
	return apply_filters( 'wp_read_video_metadata', $metadata, $file, $file_format, $data );
}

常见问题

FAQs
查看更多 >