media-formats: Difference between revisions
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** ID3v2 | ** ID3v2 | ||
* [http://www.borg.com/~jglatt/tech/aiff.htm AIFF (Audio Interchange File Format)] | * [http://www.borg.com/~jglatt/tech/aiff.htm AIFF (Audio Interchange File Format)] | ||
** AIFF defines ''' | ** AIFF defines '''Name''', '''Author''', '''Copyright''' and '''Annotation''' as optional text chunks in the flie format. | ||
** iTunes attaches ID3 information to AIFF files that it encodes | ** iTunes attaches ID3 information to AIFF files that it encodes | ||
* ALAC (Apple Lossless) | * ALAC (Apple Lossless) | ||
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* PSD | * PSD | ||
* TIFF (Tag Image File Format) | * TIFF (Tag Image File Format) | ||
===Container and Metadeta Formats=== | |||
* ID3 | |||
* ID3v2 | |||
* [http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap2/chapter_3_section_2.html#//apple_ref/doc/uid/TP40000939-CH204-DontLinkElementID_293 QuickTime User Data] | |||
** QuickTime understands '''Copyright''', '''Creation Date''', '''Director''', '''Edit Dates''', '''Format''', '''Movie Info''' (?), '''Producer Name''', '''Performers' Names''', '''Hardware/Software Requirements''', '''Source Credits''' and '''Writer's Name''' user data atoms. | |||
===Distribution/Sydication Formats=== | ===Distribution/Sydication Formats=== | ||
Revision as of 03:06, 9 July 2006
Current Media Formats
This page serves to document a list of media file metadata schemas, formats, and efforts as background for the design of a simple media info microformat. Rather than attempting a comprehensive analysis of existing formats (like media-metadata-examples), the main aim of this document is to just list common formats along with associated metadata in the hopes that it helps pave the way for later analysis and brainstorming. Although some playlist/distribution formats are listed, ideally playlists would be treated as a seperate problem and handled elsewhere. (That problem being: how should one describe a collection of media?)
Contributors
See Also
Media File Formats
What follows is a pretty general list of media file formats in use on the internet. I haven't really listed much in the way of specific metadata formats or made a distinction between container formats and codecs. The idea is to start with common formats that people use and examine the user facing data that they provide. Hopefully this can be done without getting too bogged down in the nuts and bolts of each format. -Dean
Audio Formats
- AAC (Advanced Audio Coding, most commonly iTunes and ITMS)
- ID3v2
- AIFF (Audio Interchange File Format)
- AIFF defines Name, Author, Copyright and Annotation as optional text chunks in the flie format.
- iTunes attaches ID3 information to AIFF files that it encodes
- ALAC (Apple Lossless)
- ATRAC (Sony proprietary)
- ATRAC3 (Used by SonyConnect)
- ATRAC3plus
- AU
- FLAC
- FLAC native
- Ogg FLAC
- Liquid Audio (Does this still exist in practice?)
- MIDI (Musical Instrument Digital Interface)
- MP3 (MPEG1, Audio Layer 3)
- ID3
- ID3v2
- SDII (Sound Designer II)
- Vorbis (Ogg Vorbis)
- WAV
- WMA (Windows Media Audio)
Video Formats
- AVI (Audio/Video Interleaved)
- MPEG
- MOV (QuickTime)
- DV (Digital Video)
- SWF
- WMV (Windows Media Video)
Image Formats
- BMP (Windows Bitmap Image)
- GIF (Graphic Interchange Format)
- JPEG
- PSD
- TIFF (Tag Image File Format)
Container and Metadeta Formats
- ID3
- ID3v2
- QuickTime User Data
- QuickTime understands Copyright, Creation Date, Director, Edit Dates, Format, Movie Info (?), Producer Name, Performers' Names, Hardware/Software Requirements, Source Credits and Writer's Name user data atoms.
Distribution/Sydication Formats
- RSS2 (podcasting)
- Atom (podcasting)
- M3U
- PLS
- RTP/RTSP
- FLV
Notes
The above list is just a brainstorm of existing media formats and, as such, is bound to contain some not-quite-so-useful examples. But hopefully it'll help reveal some common elements shared in currently published media and help reinvigorate media-info-brainstorming.
Next Steps
- A section for descriptive, data-only formats (MusicBrainz, etc.) or does that belong in media-info-examples?
- Add links to specifications for formats.
- Provide brief summaries of descriptive information provided by the formats with a focus on user visible information.
- Find the common ground.