At the moment you supply a folder location to Plex, Plex scans the folder and adds it to its library. Then when clients request a video/music file it trans codes it to a format the client supports.
What i would like is a media management service that runs in the background, I want to be able to specify that everything in my library should be h.264 encoded in the MKV container, or all audio files should be MP3 and not FLAC or AAC.
I would want this process to run when Plex has no clients connected to it/and or are asking for files, if a client connects I would like Plex to pause the process.
For example:
I supply Plex a folder containing a mixture of FLAC, AAC and MP3 files, in the Plex server configuration page I've told Plex I want all my music stored as a 320 kbps MP3's. When plex has no client demands I would like Plex to scan the folder and find anything that isn't an MP3 e.g. AAC, Plex looks at the bit-rate of the file and determines it is lower than a 320 kbps and so creates an MP3 at the appropriate bit-rate. Plex then finds a FLAC file which stores data at a higher bit-rate, Plex generates an MP3 at 320 kbps. Once the conversion is complete Plex will then delete the original file.