58ef68905d
Get rid of the file cache, since it tends to run out of memory for large numbers of files. This slows down the scanner somewhat, but recent optimizations more than make up for that. With this change, the postscan phase of the media scan now only processes playlists. Removal of entries for files that no longer exist is done as part of the prescan. Lookups in the file cache are replaced by simple queries, which are still reasonably fast because of a new index recently added to the media provider database. Note that there was a bug in the case-insensitive matching for file cache entries, in that e.g. an uppercase a-accent-aigue would be mapped to its lowercase version, whereas the underlying case-insensitive filesystem treats them as different characters. Getting rid of the file cache also fixes this issue. Bug: 4474617 Change-Id: I39c6f1a35bb518ef7ab912e9b9401663821ef48e