[vdr] [feature request] recording length computation and storage

[Steffen Barszus]

Hi !

After having seen that there are several plug-ins computing the
recording length on their own and that being a very expensive task (in
respect of io and cpu) and also the same implementation needs to be
copied over and over again, i would like to request, that vdr is
storing the length of a recording and make it accessible to the
plug-ins. I would imagine, that some logic to store it in the info file
after/while generating/writing the index would be a good way. 

Plug-ins which possibly could make use of that are:
* live
* extrecmenu
* restfulapi

I'm sure there are more of it. 

Has someone allready thought of this ? Are there any plans to have that
or someone allready using a patch for this ? 

Thanks !

Steffen