- From: Pierre-Antoine Champin <pierre-antoine.champin@liris.cnrs.fr>
- Date: Wed, 09 Mar 2011 18:10:42 +0100
- To: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Hi all, this is very embarassing just after the 2nd LC, but when implementing the ID3-mapping, I noticed some inconsistencies in the ID3 mapping table... I consider those changes as mostly editorial, though (conceptual typos, if you like). There is no real change in the "spirit" of the spec. pa * the referenced version of ID3 is 2.4, but the mapping table makes explicit (href's) and implicit references to the 2.3 specification. I vote for defining the mapping w.r.t. 2.4, and leave backward compatibility problems to ID3 implementations (for example, Mutagen, the python library I used, automatically converts 2.3 ID3 to 2.4). * title: ** remove TALB (it also appears under 'collection' - TALB is the title of the album of which the file is a track). ** change TIT2 to be an *exact* match ** remove TOAL (see 'relation' below - TOAL is the title of the original track, in the case of a cover). ** remove TIT1 (it also appears under 'description') * language ** the link to ISO_639-2 should be http://en.wikipedia.org/wiki/List_of_ISO_639-2_codes (currently a link to the french version ;) * creator: ** not clear what 'see composer' means; remove it ** add TPE1 as an exact match (NB: this is how it is declared in the WebM mapping table) * contributor: ** remove the part about "/"-separated values (deprecated in v2.4, which supports "real" multiple-values) ** remove TPE1 (see 'creator' above) ** remove TOPE ("original performer", in case of a cover; does not seem to be a proper contributor) ** add TCOM, TPE3, TPE4, TEXT, TMCL, TIPL, TENC (NB: the WebM mapping table states that TCOM is contributor) ** change all 'contributor' match to 'more specific' * date ** remove TDAT, TYER and TRDA (deprecated in v2.4) ** add TDEN, TDRC, TDRL, TDTG as 'more specific' matches * location ** not clear how TCOP is related; remove it (or make it clearer) * description ** remove TIT2 as it is now a match for 'title' * rating ** change POPM to 'exact' match (with a specific rating system) * relation ** remove LINK, as it is a link related to another frame (i.e. URL for a contributor), *not* to another media resource ** we can keep APIC, but I really would not know how to use it as it *embeds* the related resource rather than link to it (make a 'data:' URI??) * collection ** change TALB to 'more specific' match * frameSize ** remove TSIZ: it seems to have been deprecated in 2.4 * numTracks ** remove TRCK: it is the track number, not the number of track * policy ** remove TOWN: it is the owner/licensee, not the license
Received on Wednesday, 9 March 2011 17:11:10 UTC