Talk:Media Types

TO DO

1. describe supported vs unsupported
2. impact of unsupported
3. locate good example specimen with audubon core data including dc:format
4. more

Introduction

intro goes here

Supported formats will be able to be represented in some "pretty" way in the iDigBio portal.

Explain consequeneces of unsupported.... file sizes too large to be usable by a wide community, or need special software not commonly installed on computers, ....

Legend

Description

Brief description of the media type.

iDigBio short name

A single word that is a shortened name used by iDigBio internally (for example, the "bucket" name), in documentation about a media type, or possibly seen in API parameters. Examples include "images" and "sounds".

Supported formats

A list of known supported file formats in the format that is generally used to describe the format. Examples: JPEG, JPEG 2000, MP4 (AAC audio)

Common file extensions

The most commonly used file extensions (letters after the last period in a filename) for files of the particular type. For example, .jpg, .jp2, .mp4, .stl

Common MIME types

The common MIME types known to be included in this media type, derived from the IANA controlling vocabulary of media types: http://www.iana.org/assignments/media-types/media-types.xhtml

Known Unsupported formats

A list of known unsupported file formats in the form that is generally used to describe the format. Examples: DNG, RAW, PSD, TIFF, GIF

Audubon Core Sample Values

An example of a single media type as it could be represented in Audubon Core.

 "dc:type" : "StillImage"
 "dc:format" : "image/jpeg"

iDigBio additional derivatives

List of derivatives that iDigBio creates for the media type. For example, "thumbnail", "webview", "fullsize"

Media Types

Sounds

Description

Recorded audio or signals such as bird calls, whale song, or electric fish pulses.

iDigBio short name

"sounds"

Supported formats

MP3 (MPEG-1 or MPEG-2 audio), MP4 (AAC audio)

Common file extensions

.mp3, .mp4

Common MIME types

audio/mpeg, audio/MPA, audio/mp4

Known Unsupported formats

WAV

Audubon Core Sample Values

 "dc:type" : "Sound"
 "dc:format" : "audio/mpeg"

iDigBio derivatives

**** TBD ****

Documents

Description

TBD

iDigBio short name

"documents"

Supported formats

Portable Document Format (PDF)

Common file extensions

.pdf

Common MIME types

"application/pdf"

Known Unsupported formats

DOC, DOCX

Audubon Core Sample Values

 "dc:type" : "Text"
 "dc:format" : "application/pdf"

iDigBio derivatives

**** TBD ****

Images

Description

Digital photographs of specimens, labels, sheets

iDigBio short name

"images"

Supported formats

JPEG, JPEG 2000, PNG

Common file extensions

.jpg, .jpeg, .jp2, .png

Common MIME types

image/jpeg, image/jp2, image/png

Known Unsupported formats

DNG, RAW, PSD, TIFF, GIF

Audubon Core Sample Values

 "dc:type" : "StillImage"
 "dc:format" : "image/jpeg"

iDigBio derivatives

thumbnail, webview, fullsize

Models

Description

3D models and meshes representing specimens as polyhedral objects

iDigBio short name

"models"

Supported formats

StereoLithograph (STL, binary), Polygon File Format (PLY, binary)

Common file extensions

STL, PLY

Common MIME types

model/mesh

Known Unsupported formats

**** TBD ****

Audubon Core Sample Values

 "dc:type" : "InteractiveResource"
 "dc:format" : "model/mesh"

iDigBio derivatives

**** TBD ****

Video

Description

Multiple frame capture of moving visual images with possible audio tracks included.

iDigBio short name

"videos"

Supported formats

MP4 (H.264 encoding), MPEG

Common file extensions

.mp4, .mpeg

Common MIME types

video/mp4, video/mpeg

Known Unsupported formats

GIF, DIVX, Adobe Flash (F4V, FLV), Quicktime

Audubon Core Sample Values

 "dc:type" : "MovingImage"
 "dc:format" : "video/mp4"

iDigBio derivatives

**** TBD ****