- 
gsttag — additional tag definitions for plugins and applications
- 
gsttagvorbis — tag mappings and support functions for plugins
                    dealing with vorbiscomments
- 
gsttagid3 — tag mappings and support functions for plugins
                    dealing with ID3v1 and ID3v2 tags
- 
gsttagdemux — Base class for demuxing tags that are in chunks
                    directly at the beginning or at the end of a file
        This library should be linked to by getting cflags and libs from
        gstreamer-plugins-base-0.10.pc and adding
        -lgsttag-0.10 to the library flags.