VIDEOMD: LC-AV Video Metadata Extension Schema. VIDEOMD contains technical metadata that describe a digital video object. It is based upon metadata defined by LC. VIDEOMD contains 36 top-level elements. VIDEOMDType has 2 attributes, ID: (XML ID) ANALOGDIGITALFLAG: A major indicator of the type of video object i.e Analog, PhysDigital, or FileDigital. file_data: The file_data element is used to describe technical characteristics of a video file. bits_per_sample: This is the simple element which provides a place to store the size of a digital video sample in bits. byte_order: This is the simple element which provides a place to store the order of bit significance in a byte from left to right i.e. 0-least-to-most, 1-most-to-least. data_rate: This is the simple element which provides a place to store the data rate of a digital video file. data_rate_mode: This is the simple element which provides a place to store the mode of the data rate in a digital video file. format_name: This is the simple element which provides a place to store the official name for the file format taken from the format documentation, e.g. "avi" or "mpeg". format_note: This is the simple element which provides a place to store application specific information about the video file. e.g. Adobe Premiere 5.0, Real Video 3.0, etc.... format_version: This is the simple element which provides a place to store the version of the video format specified in format_name e.g. for format_name="mpeg" format_version="2.0". sampling: This is the simple element which provides a place to store the video sampling format used in a digital video file. (in terms of luminance and chrominance), e.g., 4:2:0, 4:2:2, 2:4:4, etc.) security: This is the simple element which provides a place to store the the type of security applied to a digital video file e.g. password, encryption, hidden, etc.... sound: This is the simple element which provides a place to store information that describes the sound component of the digital video file. use: This is the simple element which provides a place to store the use of the digital video file, e.g. Master, Service, Preview, etc..... color_burst: This is the simple element which provides a place to store an indicator of the presence or absence of color burst signal in a video source item. condition: This is the simple element which provides a place to store the physical condition of a video item. disposition: This is the simple element which provides a place to store what became of a video source item. generation: This is the simple element which provides a place to store the generation of a video source item. number_carriers: This is the simple element which provides a place to store the number of containers holding a video source item. phys_format: This is the simple element which provides a place to store the physical format of the video item. e.g. reel-to-reel tape, 1/4 inch cassette, etc... signal_format: This is the simple element which provides a place to store the signal format of a video source item e.g. NTSC, PAL, SECAM. videodisc_type: This is the simple element which provides a place to store the type of videodisc used for a video source item. videotape_type: This is the simple element which provides a place to store the type of videotape used for a video source item. aspect_ratio: This is the simple element which provides a place to store the desired aspect ratio of the image on screen e.g., 4:3, etc. Some files produced for display on non-square-pixel monitors have a desired aspect ratio that differs from the ratio of horizontal to vertical pixels in a byte from left to right. closed_captioning_note: This is the simple element which provides a place to store the type of closed captioning in a video source item. duration: This is the simple element which provides a place to store the duration of a digital video file. note: This is the simple element which provides a place to store miscellaneous information about the video file. e.g. digital alterations or enhancements to improve quality. calibrationType: Complex Type for recording the type of calibration used for a digital video file. calibrationType has 1 attribute and 3 elements. ID: (XML ID) - image_data: location of the calibration target file if not contained within the image file (external) e.g. URN, URL, etc; - target_id: calibration target name, manufacturer, version, etc..; - target_type: identifies the calibration target image as internal or external to the image file itself. checksumType: Complex Type for recording the type of checksum used for a digital video file. checksumType has 1 attribute and 3 elements. ID: (XML ID) - checksum_datetime: datetime the checksum was calculated and applied; - checksum_type: the type of checksum used; - checksum_value: the checksum value. compressionType: complexType for recording the type of compression used for a digital video file. compressionType has 1 attribute and 3 elements. ID: (XML ID) - codec_creator_app: name of the creator of the compression application e.g. Adobe Premiere, etc...; - codec_creator_app_version: version of the compression application e.g. 6.0, etc...; - codec_name: the name of the compression algorithm used e.g. MPEG, etc..; - codec_quality: impact of the compression on quality e.g. lossless or lossy. dimensionsType: Complex Type for recording the dimensions of an object. dimensionsType has the following attributes: 1. DEPTH: the depth as a floating point number; 2. DIAMETER: The diameter of a circular item as a floating point number; 3. GAUGE: The width of the medium unwound (e.g. tape); 4. HEIGHT: The height as a floating point number; 5. LENGTH: The length of the medium unwound (e.g. tape); 6. NOTE: Miscellaneous information about the dimensions; 7. THICKNESS: the thickness of the medium unwound (e.g. tape); 8. UNITS: the unit of measurement; 9. WIDTH: the width as a floating point number. dtvType: complexType for recording Information about a high definition TV video source item. dtvType has 1 attribute, ID (XML ID). - dtv_aspect_ratio: Aspect ratio of high definition video source item expressed as ratio, e.g., 4:3, 16:9, etc. - dtv_note: Note about a high definition video source item. - dtv_resolution: Resolution of high definition video source item expressed as horizontal lines. - dtv_scan: Indication whether high definition video source item is scanned in an interlaced or progressive mode. frameType: Complex Type for recording the size of a frame in a digital video file. frameType has 1 attribute and 2 elements. ID: (XML ID). - pixels_horizontal: the horizontal dimension of a frame in pixels. - pixels_vertical: the vertical dimension of a frame in pixels. materialType: Complex Type for recording the physical characteristics of the construction and material of an video source item. materialType has 1 attribute and 5 elements. ID: (XML ID) - base_material: type of material used in the recording carrier e.g plastic, glass, vinyl, mylar, etc... - binder: type of adhesive used to bind the recording surface to the substrate - disc_surface: the type of recording surface aluminium, celluloid etc.... - oxide: type of oxide used on the recording surface, e.g. cobalt, chromium dioxide, ferrous oxide - reflective_layer: type of material used on the recording surface, e.g. dye, tellurium-selenium alloy, etc.. - stock_brand: name of the manufacturer of the recording medium, e.g. Scotch, Maxell, Sony, etc... timecodeType: Complex Type for recording tracking information about a video source item. timecodeType has 1 attribute and 2 elements. ID: (XML ID) - timecode_record_method: Method for recording timecode on the video source item; - timecode_type: Type of timecode recorded on video source item, e.g., SMPTE dropframe, SMPTE nondropframe, etc.. trackingType: complexType for recording tracking information about a video source item. trackingType has 1 attribute and 2 elements. ID: (XML ID) - tracking_type: The type of tracking code, e.g., MAVIS number, actual shelf numbers, bar-code, etc.; - tracking_value: Shelf number or other identifier for source, e.g., MAVIS number, actual shelf numbers, etc..