Jon and everyone else involved, I'm very excited about CC EXIF. I've set up cc-sharp (http://wiki.creativecommons.org/cc-sharp) in a way that a file path, license URL, and metadata URL can be passed to the library and it will verify the license claim. This way programs like f-spot (http://f-spot.org/) will be able to verify license claims with the exact same code that Banshee (http://www.banshee-project.org/) uses to verify mp3s. As of now it looks like all your suggestions, Jon, can be narrowed down to a 3 part "file, license URL, and metadata URL" verification process and I'm just wondering if a standard file-type-less verification algorithm (api) exists or if we can set one up?
-Luke On 8/8/06, Jon Phillips <[EMAIL PROTECTED]> wrote: > On Sun, 2006-07-30 at 19:35 -0700, Mike Linksvayer wrote: > > One of the http://wiki.creativecommons.org/Summer_of_Code_2006_Projects > > is addressing EXIF, though I haven't seen the code yet... > > I created a page for those interested in getting and putting metadata > into the filetypes which use Exif: > > http://wiki.creativecommons.org/Exif > > There are a gazillion tags > (http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/index.html) for > Exif metadata, so we need to pick a solid approach for pushing Exif > support to the 30 file formats that allow one to use Exif metadata. > > After looking at the file list, one can see that support for Exif is > pretty major (more than id3) and there are tools, like exiftool > (http://www.sno.phy.queensu.ca/~phil/exiftool) which allow people to > embed and retrieve Exif metadata in quicktime, mp4, tiff, etc. > > It looks like there are a several tag types with the basic Exif types > and then extended sets such as XMP. I think we should promote both using > the standard and XMP metadata types. > > I think the best way to support Exif metadata is to use the XMP:cc and > XMP:dc (dublin core) tags to support metadata in a similar way as we do > with XML. What do you all think? > > Also, I think supporting the standard Exif metadata tag "Copyright", > which is a string would be important as well: > > 0x8298 Copyright string IFD0 > > And possibly the Comment type as well: > > 0x9286 UserComment undef ExifIFD > > And, optionally, maybe we should promote adding the nonstandard XP > fields so that this metadata is available in Windows XP and greater: > > 0x9c9b XPTitle undef IFD0 (tags 0x9c9b-0x9c9f are used by Windows > Explorer; special characters in these values are converted to UTF-8 by > default, or Windows Latin1 with the -L option. XPTitle is ignored by > Windows Explorer if ImageDescription exists) > > 0x9c9c XPComment undef IFD0 > > 0x9c9d XPAuthor undef IFD0 (ignored by Windows Explorer if Artist > exists) > > 0x9c9e XPKeywords undef IFD0 > > 0x9c9f XPSubject undef IFD0 > > > > Thoughts? > > I'm also cc'ing Hubert Figuiere, who has worked on this filetype > extensively. Hubert, could you help us find out the best way to embed > licensing using Exif? These resource might exist, but hopefully you can > help us find them. > > Jon > > > On Mon, 2006-07-31 at 00:28 +0200, Jaime Frutos Morales wrote: > > > I'm new to this list, so hi you all! > > > > > > I've searched the wiki for an EXIF metadata specification but I > > > haven't found any. Do you have any standard way of embeding CC > > > licenses in EXIF metadata? > > > > > > There is a "Copyright" field which could be used to embed the CC > > > license. Any comments about this? > > > > > > I'm interested in this because I'm planning to write a patch for EOG > > > (Gnome's image view program) to support CC licenses. At the moment, > > > I've only found an image metadata specification for SVG (and possibly > > > EXIF). Is there any other image format which supports embedded CC > > > licenses? > > > > > > Thanks. > -- > Jon Phillips > > San Francisco, CA > USA PH 510.499.0894 > [EMAIL PROTECTED] > http://www.rejon.org > > MSN, AIM, Yahoo Chat: kidproto > Jabber Chat: [EMAIL PROTECTED] > IRC: [EMAIL PROTECTED] > > Inkscape (http://inkscape.org) > Open Clip Art Library (www.openclipart.org) > Creative Commons (www.creativecommons.org) > San Francisco Art Institute (www.sfai.edu) > > _______________________________________________ > cc-devel mailing list > [email protected] > http://lists.ibiblio.org/mailman/listinfo/cc-devel > -- Luke Hoersten http://www.openradix.org/ http://www.cs.purdue.edu/~lhoerste/ _______________________________________________ cc-devel mailing list [email protected] http://lists.ibiblio.org/mailman/listinfo/cc-devel
