| AUDIO |
| analog_digi_flag |
Indicator of the how this entity is describe in the METS document instance. |
| audio_block_size |
Size of an audio block in bytes. |
| audio_data_encoding |
Structure for audio data; current known types are pulse code modulation (PCM) and
SONY's DSD structure. |
| base_material |
Base material of the source sound recording, e.g., plastic, glass, vinyl, metal, wax,
polycarbonate, etc. MAVIS codes exist. |
| binder |
Type of adhesive used to bind recording surface to base material, e.g., CA (cellulose
acetate) , PVC (polyvinyl chloride) etc. MAVIS codes exist. |
| bits_per_sample |
Number of bits per audio sample, e.g., 16, 20, 24, etc. |
| calibration_ext_int |
Indicator that the calibration information is contained within the file or externally. |
| calibration_location |
Temporary location of the calibration file if it is external, e.g. URL. |
| calibration_type |
Type of calibration, e.g., the ITU test sequences known as CCITT 0.33.00 (mono) and
CCITT 0.33.01 (stereo). |
| codec_creator_app |
The name of the application used to apply the codec, e.g., SoundForge. |
| codec_creator_app_version |
The version of the application used to apply the codec, e.g., 5.2. |
| codec_name |
The name and version (or subtype) of the compression algorithm used, e.g., Frauenhofer
xyz ["xyz" is a placeholder for versioning information]. |
| codec_quality |
Indication whether the codec is lossy or lossless. |
| condition |
Narrative description of the physical condition of the item, e.g., brittle paper, sticky shed
tape, chipped disc, etc. |
| data_rate |
Data rate of the audio in an MP3 or other compressed file, expressed in kbps, e.g., 64, 128,
256, etc. |
| data_rate_mode |
Indicator whether the data rate is fixed or variable. |
| dimensions_depth |
Depth of the object in the unit of measure indicated in dimensions_unit, e.g., 7, 12. |
| dimensions_diameter |
Diameter of any circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| dimensions_height |
Height of the object in the unit of measure indicated in dimensions_unit, e.g., 23. |
| dimensions_note |
Desciption of odd-shaped objects that cannot be described using the standard dimensions
fields. |
| dimensions_unit |
Unit of measurement of the source object, e.g., inches. |
| dimensions_width |
Width of any non-circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| disposition |
What became of the source item, e.g., reshelved on shelf number 1234, discarded, loaned
to XYZ organization, destroyed, etc. |
| disc_surface |
Information regarding the disk surface of the analog recording, e.g., aluminium, celluloid,
etc. MAVIS codes exist. |
| duration |
Elapsed time of the entire file, expressed using ISO 8601 syntax; see
http://www.w3.org/TR/NOTE-datetime. |
| equalization |
Equalization system inherent in source recording, e.g., FFRR (Full Frequency Range
Recording), RIAA (Recording Industry Association Of America), etc. MAVIS codes
exist. |
| first_sample_offset |
Location of the first valid sound byte in the file. |
| first_valid_byte_block |
Location of the first valid sound byte in the block. |
| gauge |
Gauge or width of source tape, including indication of unit of measure, e.g., 8 mm, 0.5
inch, 0.25 inch, etc. MAVIS codes exist. |
| generation |
Generation of physical source item which was digitized, e.g., studio
master, original disc, preservation tape copy, etc. MAVIS codes exist. |
| groove |
Groove type of audio source, e.g., standard groove, hill and dale cutting, microgroove, etc.
MAVIS codes exist. |
| last_valid_byte_block |
Location of the last valid sound byte in the block. |
| length |
Length of source open-reel tape recording, including indication of unit of measure, e.g.,
700 feet, 1200 feet, etc. |
| noise_reduction |
Noise reduction system inherent in source recording, e.g., DA ( Dolby A), DB ( Dolby S),
FL (Flat) etc. MAVIS codes exist. |
| note |
Additional information about the audio source item. |
| num_channels |
Number of audio channels, e.g., 1, 2, 4, 5, etc. |
| num_sample_frames |
The number of frames within an audio file. |
| oxide |
Type of oxide used for the coating of a tape recording, e.g., cobalt modified, chromium
dioxide, etc. MAVIS codes exist. |
| phys_format |
Name for the physical format of the source e.g., Record, Audiocassette, etc. |
| reflective_layer |
The substrate of an optical disk. |
| sampling_frequency |
Rate at which the audio was sampled, expressed in kHz, e.g., 22, 44.1, 48, 96, etc. |
| sound_channel_map |
Information about the channel configuration, e.g., mapping the audio channel to their
intended aural position/loudspeakers. The values represent parseable compound metadata using
commas as separators, e.g., 1=left_front, 2=right_front, 3=center, 4=left_rear, 5=right_rear; or
1=French_narration, 2=Spanish_narration, 3=English_narration, 4=synch_sound,
5=music. |
| sound_field |
Indicates aural space arrangement of the sound recording, e.g., monaural, stereo, joint
stereo, surround sound DTS 5.1, etc. MAVIS codes exist. |
| speed |
Nominal speed of the source recording, including indication of the unit of measure, e.g., 1
7/8 ips, 4.75 cm/s, 15 ips, 78 rpm, 45 rpm, etc. MAVIS codes exist. |
| speed_adjustment |
Speed actually used at playback expressed as a percentage of nominal speed, e.g., 90 or
110. |
| speed_note |
Note to state actual speed as a number (73 rpm) or to state a deviation such as
"corrected to C sharp pitch. |
| stock_brand |
Manufacturer and stock number for source recording, e.g., Scotch 208, Ampex 407, Webco
steel wire, Quik-cut 3215 acetate disc, etc. MAVIS codes exist. |
| tape_thickness |
The thickness of a tape. |
| temp_dimensions_note |
Temporary field for use in upgrading LC legacy data pertaining to the dimension fields of
the legacy SOURCE table. |
| time_stamp |
Exact location of calibration tones within a file. |
| track_format |
Track format of a magnetic tape, e.g., full track, half track, quarter track stereo, video HiFi,
etc. MAVIS codes exist. |
| 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. |
| word_size |
Number of bytes that comprise a single sample of audio data, which generally maps to
bits_per_sample. Files with a bit depth of 24 will usually be expressed as a 3-byte word_size;
however, some applications may store 24-bit audio in a 4-byte word. |
| IMAGE |
| analog_digi_flag |
Indicator of the how this entity is describe in the METS document instance. |
| bits_per_sample |
Bit depth at each pixel, e.g., 8, 16, 24, etc. |
| chromaticities_primary |
Chromaticities of the primary colors of the image. |
| chromaticities_white_point |
White point chromaticity of the effective illumination source. |
| color_map_location |
The location of the color map, e.g., image file, auxiliary file, associated file,
metadata. |
| color_map_value |
Color lookup table for non-RGB images. |
| compression |
Designates the compression scheme used to store the image data. The NISO-image term
set is based on TIFF 6.0, and examples include Uncompressed, CCITT Group 3, CCITT Group
4, LZW, JPEG, PackBits, ands None. |
| condition |
Narrative description of the physical condition of the item, e.g., brittle paper, foxing,
staining, etc. |
| dimensions_depth |
Depth of the object expressed in the unit of measure indicated in dimensions_unit, e.g., 4,
12. |
| dimensions_diameter |
Diameter of any circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| dimensions_height |
Height of the object expressed in the unit of measure indicated in dimensions_unit, e.g., 6,
12, 24. |
| dimensions_note |
Desciption of odd-shaped objects that cannot be described using the standard dimensions
fields. |
| dimensions_unit |
Unit of measurement of the source object, e.g., inches. |
| dimensions_width |
Width of any non-circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| disposition |
What became of the source item, e.g., reshelved on shelf number 1234, discarded, loaned
to XYZ organization, destroyed, etc. |
| extra_samples |
Specifies that each pixel has extra components. |
| generation |
Generation of physical source item which was digitized, e.g., photostat
copy, slide copy, film interpositive from negative, etc. |
| gray_response_loc |
The location of the gray response curve values, e.g., image file, auxiliary file, associated
file, metadata. |
| gray_response_unit |
Unit of measure of gray response curve values. |
| gray_response_value |
Gray response curve values, used when a response curve is generated at the start of a
capture session. |
| image_data |
Temporary location of the target file if not contained within the image file (external) e.g.
URN, URL, etc. See also target_id and target_type. (NISO-image terminology) |
| note |
Additional information about the image source item. |
| orientation_disk |
Orientation of the image saved on disk, e.g., normal, normal rotated 180°, normal
rotated cw 90°, etc.D164 |
| orientation_display |
Orientation of the image as displayed, e.g., landscape or portrait. |
| photometric_interp |
Designates the color space of the decompressed image data as defined in the NISO image
data dictionary.
0 = White Is Zero
1 = Black Is Zero
2 = RGB |
| phys_format |
Name for the physical format of the source e.g., Oil Painting, Photograph, etc. |
| pixels_horizontal |
Horizontal dimension of image in pixels, e.g., 1024. |
| pixels_vertical |
Vertical dimension of image in pixels, e.g., 768, called ImageLength in the NISO image
data dictionary. |
| planar |
Designates how the components of each pixel are stored.
1 = Chunky Format
2 = Planar Format |
| samples_per_pixel |
The number of color components (samples) per pixel, e.g., 3 (RGB) , 4 (CYMK),
etc. |
| sampling_freq_unit |
Unit of measure for horizontal and vertical sampling frequency, e.g., inches, centimeters,
or unknown. |
| sampling_frequency_horizontal |
Number of pixels per sampling frequency unit by width. |
| sampling_frequency_plane |
Reference plane location for horizontal and vertical sampling frequency. |
| sampling_frequency_vertical |
Number of pixels per sampling frequency unit by height. |
| segment_form |
Specifies whether the image is stored in tiles or strips. |
| strip_byte_counts |
Number of image data bytes stored within each strip after compression. |
| strip_offsets |
Byte offset of a strip. |
| strip_rows |
Number of rows per strip. |
| target_id |
Calibration target name, manufacturer, version, etc. See also image_data and target_type.
(NISO-image terminology) |
| target_type |
Conveys whether the target image is internal to the image file or external. See also
image_data and target_id. (NISO-image terminology) |
| temp_dimensions_note |
Temporary field for use in upgrading LC legacy data pertaining to the dimension fields of
the legacy SOURCE table. |
| tile_byte_counts |
Number of image data bytes stored within each tile after compression. |
| tile_height |
Tile height in pixels, called TileLength in the NISO image data dictionary. |
| tile_offsets |
Byte offset of a tile. |
| tile_width |
Tile width in pixels. |
| 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. |
| watermark |
Type of watermark used in the file, e.g., Digimarc, Giovanni, Alpha-Tec, StirMark,
etc. |
| Notes from February 2002 meeting at
Harvard. |
(1) We may wish for more metadata to describe compression, e.g., to track the
quantization table for JPEG. Some felt that it might be useful to make a parallel set to those
proposed for audio compression: codecName: The name and version (or subtype) of the
compression algorithm used; codecCreatorApplication: The name of the application used
to apply the codec; codecCreatorApplicationVersion: The version of the application used
to apply the codec; codecQuality [or type]: Indication whether the codec is lossy or
lossless.
(2) We may wish for more metadata to describe file formats. The proposed audio set
has these elements/attributes: formatSpecification [may rename as formatName]: The
official name for the file format taken from format documentation;
formatSpecificationVersion: The version of the format specified in formatName;
formatSpecificationType [flavor?]: Added application specific information.
(3) There was very unresolved discussion about describing a source for an image. LC has a
placeholder here; the group suggested waiting for domain experts to develop something for
paintings, photos, etc. Examples might include: type: reflection/transmission;
medium (e.g, watercolor, printing ink); support (e.g., paper); and note.
|
| TEXT |
| encoding |
Character encoding scheme used in the text document, e.g, ASCII, UTF-8, Unicode,
etc. |
| markup |
Type of markup language used to markup the document, e.g, SGML, XML, HTML,
etc. |
| note |
Additional information or comments about the text object. |
| Notes from February 2002 meeting at
Harvard. |
At the meeting, the following suggestions for added elements or attributes were made:
language_name; language_code; transliteration_scheme; directionality (left to right); and
dtd_schema. |
| VIDEO |
| analog_digi_flag |
Indicator of the how this entity is describe in the METS document instance. |
| aspect_ratio |
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. |
| bits_per_sample |
The number of bits of sample depth, e.g., 8, 24, etc. |
| calibration_ext_int |
Indicator that the calibration information is contained within the file or externally |
| calibration_location |
Temporary location of the calibration file if it is external e.g. URL |
| calibration_type |
Type of calibration used |
| closed_captioning_note |
Information about closed captioning in this source item. |
| closed_captioning_type |
Type of closed captioning. |
| color_burst |
Indicates presence or absence of color burst signal. |
| codec_creator_app |
The name of the application used to apply the codec, e.g., SoundForge. |
| codec_creator_app_version |
The version of the application used to apply the codec, e.g., 5.2. |
| codec_name |
The name and version (or subtype) of the compression algorithm used, e.g., Frauenhofer
xyz ["xyz" is a placeholder for versioning information}. |
| codec_quality |
Indication whether the codec is lossy or lossless. |
| condition |
Narrative description of the physical condition of the item, e.g., sticky shed tape, deformed
by slots in reel, etc. |
| data_rate |
Data rate of the audio in an MPEG or other compressed file expressed in mbps, e.g., 8, 12,
15, etc. |
| data_rate_mode |
Indicator that the data rate of the video is fixed or variable. |
| dimensions_depth |
Depth of the object expressed in the unit of measure indicated in dimensions_unit, e.g.,
12. |
| dimensions_diameter |
Diameter of any circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| dimensions_height |
Height of the object expressed in the unit of measure indicated in dimensions_unit, e.g.,
23. |
| dimensions_note |
Desciption of odd-shaped objects that cannot be described using the standard dimensions
fields. |
| dimensions_unit |
Unit of measurement of the source object, e.g., inches. |
| dimensions_width |
Width of any non-circular object expressed in the unit of measure indicated in
dimensions_unit, e.g., 3.5, 5, 7. |
| disposition |
What became of the source item, e.g., reshelved on shelf number 1234, discarded, loaned
to XYZ organization, destroyed, etc. |
| dtv_aspect_ratio |
Aspect ratio of digital video source item expressed as ratio, e.g., 4:3, 16:9, etc. |
| dtv_note |
Note about digital video source item. |
| dtv_resolution |
Resolution of digital video source item expressed as horizontal lines. |
| dtv_scan |
Indication whether digital video source item is scanned in an interlaced or progressive
mode. |
| duration |
Elapsed time of the entire file, expressed using ISO 8601 syntax; see
http://www.w3.org/TR/NOTE-datetime. |
| frame_rate |
The number of frames per second at which the video source item was captured. |
| gauge |
Gauge or width of source tape, including indication of unit of measure, e.g., 8 mm, 0.5
inch, 0.25 inch, etc. MAVIS codes exist. |
| generation |
Generation of physical source item which was digitized, e.g., studio
master, preservation tape copy, photostat copy, etc. MAVIS codes exist. |
| length |
Length of source open-reel tape recording, including indication of unit of measure, e.g.,
700 feet, 1200 feet, etc. |
| note |
Additional information about the video source item. |
| num_sample_frames |
The number of frames within a video file. |
| number_carriers |
The number of carriers (reels, cassettes) needed to house the video source item. |
| phys_format |
Name for the physical format of the source e.g., Videotape, Film Reel etc. |
| pixels_horizontal |
The horizontal size of a frame in picture elements. |
| pixels_vertical |
The vertical size of a frame in picture elements. |
| reflective_layer |
The substrate of an optical disk. |
| sampling |
The video sampling format (in terms of luminance and chrominance), e.g., 4:2:0, 4:2:2,
2:4:4, etc. |
| signal_format |
Signal format of the video source item. Analog-source examples include composite
monochrome, NTSC (composite color), PAL, SECAM, and analog component. Digital-source
examples include digital component and others. [Future action: identification of set of specific
SMPTE and ITU terms/codes for use in this field.] |
| sound |
Indicator of the presence of sound in the video file. If the value "yes" is
selected, then the video file will also be associated with an instance of audioMD (metadata for
audio files) or audiophysrcMD (metadata for physical-form audio source items). |
| stock_brand |
Manufacturer and stock number for source recording, e.g., Scotch XYZ, Ampex ABC, etc.
MAVIS codes exist. |
| tape_thickness |
The thickness of a tape. |
| temp_dimensions_note |
Temporary field for use in upgrading LC legacy data pertaining to the dimension fields of
the legacy SOURCE table. |
| timecode_record_method |
Method for recording timecode on the video source item, e.g., longitudinal, vertical
interval, etc. |
| timecode_type |
Type of timecode recorded on video source item, e.g., SMPTE dropframe, SMPTE
nondropframe, etc. |
| time_stamp |
Exact location of calibration tones within a file. |
| 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. |
| videodisc_type |
Identification of whether this videodisc recording is constant linear velocity (CLV) or
constant angular velocity (CAV). |
| videotape_type |
General type of videotape format, e.g., 2-inch quadraplex, 1-inch type C, VHS, Betacam
SP, etc. Complementary to stock_brand. |
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