OpenWMS Metadata Guide

Source Metadata


Last updated: May 5th, 2009
Name
digitalCharacteristicsBitRateReduction
Group Label
Bit Rate Reduction
Schema
rulib
Definition
bitRateReduction is a parent element for six subelements pertaining to compression of the audio or video data:
Codec Name
Codec Name Version
Creating Application
Codec Quality
Data Rate
Data Rate Mode

In the database, this element is a subelement of digitalCharacteristics. Digital Characteristics elements apply to digital files and to digital physical objects such as digital videotape. Digital Characteristics elements are displayed only when the value in the analog/digital flag element is either FILE_DIGITAL or PHYS_DIGITAL.
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCodecName
Label
Bit Rate Reduction - Codec Name
Schema
AES 4.4.16.4.13.2 (codecName)
Definition
Name of the codec (compression algorithm) used to process the audio or video data.
Controlled Vocabulary
Videotape and Videodisc. BMP; Conexant YUV 4:1:1 (Y41P, CXY1); Conexant YUV 4:2:0; Conexant YUV 4:2:2 (CPLA, CXY2); IRAW; RAW; YUVP; YV12; YV16; CorePNG; H.264 (MPEG-4 AVC, MPEG-4 Part 10); Huffyuv; Lagarith; LCL; MJPEG2000; MSU; TSCC; AVS; Blackbird FORscene; Cinepak; DV (IEC 61834); Dirac; Firebird Original FORscene; H.261; H.263; MPEG-4 ASP; H.264 (MPEG-4 AVC, MPEG-4 Part 10); Indeo 3/4/5; KVCD; MJPEG (Motion JPEG); MPEG-1 Video; MPEG-2 Video; MPEG-4 ASP; MPEG-4 AVC; VP3; VP6; VP7 (TrueMotion S); Pixlet; RealVideo; Snow Wavelet Codec; Tarkin; Ogg-Theora; VC-1 SMTPE; WMV; ASF; WAX [source: rulib]
Audiotape. ADAT (Alesis Digital Audio Tape); ATRAC; DNR; Elcaset; Nagra; ProDigi [source: rulib]
Optical disc. AAC (Advanced Audio Codec, aka Mpeg-4); ATRAC (MiniDisk); CDDA (Compact Disk Digital Audio) [Redbook]; CD-MIDI; DualDisc; DVD-A (DVD Audio); Enhanced CD [CDExtra, CDPlus]; MP3; Multisession [Mixed Mode CD, Blue book]; SACD (Super Audio CD) [Direct Stream Digital (DSD)]; XRCD (Extended Resolution Compact Disc); HDCD (High Definition Compatible Digital); WMA (Windows Media Audio) [source: rulib]
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCodecNameVersion
Label
Bit Rate Reduction - Codec Name Version
Schema
AES 4.4.16.4.13.3 (codecNameVersion)
Definition
Version of the codec (compression algorithm) used to process the audio or video data.
Format
Format as 1.0, 1.1 etc.
Example(s)
1.1
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCreatingApplication
Label
not applicable; does not appear on form
Schema
rulib
Definition
Creating Application is a parent element for two subelements: Name and Version. Together these subelements identify the software application used to encode the object's audio or video data.
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCreatingApplicationName
Label
Bit Rate Reduction - Creating Application Name
Schema
AES 4.4.16.4.13.4 (codecCreatorApplication)
Definition
The name of the software application used to encode the object's audio or video data.
Example(s)
SoundForge
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCreatingApplicationVersion
Label
Bit Rate Reduction - Creating Application Version
Schema
AES 4.4.16.4.13.5 (codecCreatorApplicationVersion)
Definition
The numeric designation used to identify the version of the application specified by creatingApplication name.
Usage Note
Required whenever creatingApplicationName is supplied; for audio and video, the codec creator application version.
Format
Format as 1.0, 1.1 etc.
Example(s)
2.3
Repeatable
N
Name
digitalCharacteristicsBitRateReductionCodecQuality
Label
Bit Rate Reduction - Codec Quality
Schema
AES 4.4.16.4.13.6 (codecQuality)
Definition
Indication of whether the codec that has been applied to the audio or video object is lossy or lossless.
Controlled Vocabulary
lossy; code regenerating [source: AES]
Repeatable
N
Name
digitalCharacteristicsBitRateReductionDataRate
Label
Bit Rate Reduction - Data Rate
Schema
AES4.4.16.4.13.7 (dataRate)
Definition
Indicates the bit-rate the object's audio or video data has been processed to achieve. Expressed as kilobytes per second (kbps).
Format
Decimal numeral
Example(s)
64
128
256
Repeatable
N
Name
digitalCharacteristicsBitRateReductionDataRateMode
Label
Bit Rate Reduction - Data Rate Mode
Schema
AES 4.4.16.4.13.8 (dataRateMode)
Definition
Indicates whether the object's audio or video data has been processed to achieve a fixed (constant) or a variable bit rate.
Controlled Vocabulary
fixed; variable
Repeatable
N




 
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