Misc refactoring, e.g. alignment of how modules save tracks and playlists, incl
use of mfi and pli. Also try to avoid direct calls between library and player.
Instead of asking a client to first scan the path into a media_file_info
object and afterwards add it to the queue, we now offer a library
function to directly add a path.
The library-source that can handle the given path translates the path
into new queue item(s) and adds them to the queue.
webinterface
Library now offers the function "library_exec_async". This allows
library sources to offer functions that will be executed in
the library thread. Useful to allow partial scans of only one source.
"library" thread
- Implement filescanner as a library_source
- Add library source implementation for spotify
- Move process_media_info to library with small adjustments:
- Remove dependency to F_SCAN_TYPE defines
- Pass data_kind as parameter
- Pass media_kind and compilation as parameter if a source forces a
specific value for these
- Move declaration of scan_ffmpeg to library; add
library_add_playlist_info to library
