Specify Companion Text File Format for Data Interchange

[Crissov]

ID3-in-M3U would be a simple text file format that stores all T... ID3v2.4 frames as extended line comments in playlists. Each frame type does either apply only to the next applicable resource or to all subsequent resource until another frame of the same type occurs (similar to how 4.20. Linked information describes frames for use with LINK).

ID3-in-M3U	ID3v2.4	Description	Limit	Section
#EXTOFN:	TOFN	Original filename	1	4.2.5
#EXT-OAF	WOAF	Official audio file webpage	n	4.3.1
#EXTALB:	TALB	Album/Movie/Show title	n	4.2.1
#EXTSOA:	TSOA	Album sort order	n	4.2.5
#EXTDRL:	TDRL	Release time	n	4.2.5
#EXTOAL:	TOAL	Original album/movie/show title	n	4.2.1
#EXTDOR:	TDOR	Original release time	n	4.2.5
#EXT-OAS	WOAS	Official audio source webpage	n	4.3.1
#EXTPOS:	TPOS	Part of a set	n	4.2.1
#EXTSST:	TSST	Set subtitle	n	4.2.1
#EXTRCK:	TRCK	Track number/Position in set	1	4.2.1
#EXTIT1:	TIT1	Content group description	n	4.2.1
#EXTIT2:	TIT2	Title/songname/content description	1	4.2.1
#EXTSOT:	TSOT	Title sort order	1	4.2.5
#EXTDRC:	TDRC	Recording time	n	4.2.5
#EXTIT3:	TIT3	Subtitle/Description refinement	1	4.2.1
#EXTSRC:	TSRC	ISRC (international standard recording code)	n	4.2.1
#EXTIPL:	TIPL	Involved people list	n	4.2.2
#EXTCOM:	TCOM	Composer	n	4.2.2
#EXTEXT:	TEXT	Lyricist/Text writer	n	4.2.2
#EXTOLY:	TOLY	Original lyricist(s)/text writer(s)	n	4.2.2
#EXTPE1:	TPE1	Lead performer(s)/Soloist(s)	n	4.2.2
#EXTSOP:	TSOP	Performer sort order	n	4.2.5
#EXT-OAR	WOAR	Official artist/performer webpage	n	4.3.1
#EXTOPE:	TOPE	Original artist(s)/performer(s)	n	4.2.2
#EXTPE2:	TPE2	Band/orchestra/accompaniment	n	4.2.2
#EXTPE3:	TPE3	Conductor/performer refinement	n	4.2.2
#EXTPE4:	TPE4	Interpreted, remixed, or otherwise modified by	n	4.2.2
#EXTMCL:	TMCL	Musician credits list	n	4.2.2
#EXTMOO:	TMOO	Mood	n	4.2.3
#EXTKEY:	TKEY	Initial key	n	4.2.3
#EXTBPM:	TBPM	BPM (beats per minute)	1	4.2.3
#EXTLAN:	TLAN	Language(s)	n	4.2.3
#EXTENC:	TENC	Encoded by	n	4.2.2
#EXTSSE:	TSSE	Software/Hardware and settings used for encoding	n	4.2.5
#EXTDEN:	TDEN	Encoding time	n	4.2.5
#EXTDTG:	TDTG	Tagging time	n	4.2.5
#EXTCON:	TCON	Content type	n	4.2.3
#EXTMED:	TMED	Media type	n	4.2.3
#EXTFLT:	TFLT	File type	n	4.2.3
#EXTLEN:	TLEN	Length	1	4.2.3
#EXTPRO:	TPRO	Produced notice	n	4.2.4
#EXT-COM	WCOM	Commercial information	n	4.3.1
#EXTPUB:	TPUB	Publisher	n	4.2.4
#EXT-PUB	WPUB	Publishers official webpage	n	4.3.1
#EXTRSN:	TRSN	Internet radio station name	n	4.2.4
#EXTRSO:	TRSO	Internet radio station owner	n	4.2.4
#EXT-ORS	WORS	Official Internet radio station homepage	n	4.3.1
#EXTOWN:	TOWN	File owner/licensee	n	4.2.4
#EXTCOP:	TCOP	Copyright message	n	4.2.4
#EXT-COP	WCOP	Copyright/Legal information	n	4.3.1
#EXTDLY:	TDLY	Playlist delay	n	4.2.5
#EXT-PAY	WPAY	Payment	n	4.3.1
#EXTXXX:	TXXX	User defined text information frame	n	4.2.2
#EXT-XXX:	WXXX	User defined URL link frame	n	4.3.2

Frames that may be linked and need no additional data are ASPI, ETCO, EQU2, MCID, MLLT, OWNE, RVA2, RVRB, SYTC, the text information frames [T...] and the URL link frames [W...].

#EXT-ASPI: 
#EXT-ETCO: 
#EXT-EQU2: 
#EXT-MCID: 
#EXT-MLLT: 
#EXT-OWNE: 
#EXT-RVA2: 
#EXT-RVRB: 
#EXT-SYTC: 

#EXTRSN: Foobar Radio
#EXT-ORS
http://foobar.example.fm

The AENC, APIC, GEOB and TXXX frames may be linked with the content descriptor as additional ID data.

#EXTENC: 0, 30, [email protected]
data:application/octet-stream;<binary data>

#EXTPIC: 21, The Studio; image/jpeg
studiologo.jpg
#EXTPIC: 21, The Studio
data:image/jpeg;<binary>

#EXTGOB: Orchestral Score; audio/midi
score.midi
#EXTGOB: Orchestral Score
data:audio/midi;<binary>

#EXTXXX: foo, bar baz

The USER frame may be linked with the language field as additional ID data.

#EXTUSER: und, CC0

#EXTUSER: und
eula.txt

The PRIV frame may be linked with the owner identifier as additional ID data.

#EXTPRIV: [email protected]
data:application/octet-stream;<binary data>

The COMM, SYLT and USLT frames may be linked with three bytes of language descriptor directly followed by a content descriptor as additional ID data.

#EXTCOMM: und, Summary; Comment

#EXTSYLT: und, Karaoke
lyrics.srt

#EXTUSLT: und, Lyrics
lyrics.txt