There is no functionnal changes + cosmetics.

It is mostly clock fields renaming.

It fixes clock prototypes.

No functionnal change yet.

The input main loop will now handles space control at the right place.

They are set to -1 if not specified.

Not sure how it's called but i guess it would have resulted in crashes or memory corruption

Seems to works but i would appreciate a review by a playlist guru

Access outputs don't use the playlist (ever heard of VLM?).

(Untested due to other Qt4 compilation errors)

Please review.

Spotted by llvm/clang analyser.

Please review.

Spotted by llvm/clang checker.

Spotted by LLVM/Clang Static Analyzer.

This gets rid of the directory demux and playlist hacks.
Fixes #2050.

TODO: proper tree structure.