replace cdrdao and python-cddb with libcdio functions

[45054]

As we already depend on pycdio and eventually on libcdio-paranoia, the internal libcdio functions could be used as a replacement for cdrdao and python-cddb. This would reduce the amount of dependencies on unmaintained libraries.

The command cd-info could, for example, be used to extract the TOC, CD-TEXT and CDDB info.

[MerlijnWajer]

libcdio is not a proper replacement on other platforms. I've found that in particular on OS X, cdrdao interfaces correctly with CDs, whereas libcdio simply cannot perform certain actions. (I'll have to dig to figure out which ones). But why replace cdrdao when it works fine?

[45054]

Mainly to reduce the list of dependencies. Also cdrdao seems to be the source of some bugs ( #145 and #72 ) and is unmaintained or at least hasnt seen a release in 8 years.

If libcdio prevents cross plattform compatibility, any change should be postponed, of course, until those issues are fixed.

[MerlijnWajer]

I would be surprised if replacing it would lead to less bugs, but it may be worth it. Are you sure it fully replaces CDRDAO? I thought CDRDAO had some special way to read the TOC, e.g. to detect hidden tracks and such. There's a reason it reads the whole CD, right...?

[RecursiveForest]

I like the idea of at least having another method (even if it only works on some platforms) of checking the toc. I wouldn't wholesale replace cdrdao.