[mythtv] MythMusic playlist/random enhancements

[Otto Kolsi]

I've thought about following enhancements to MythMusic and would like to 
get comments if these would be accepted or not and what others think of 
these.

Currently playlist is not re-randomized when it is played through 
(matters if you have e.g. repeat all enabled). I think normal and smart 
random values should be re-calculated once the list is played before 
next round starts. This might cause some delay if you have a huge 
playlist.. My idea would be to re-randomize only the current playlist. 
Currently when random values are calculated I think ALL playlists are 
calculated and at least that should be avoided.

Another change would be to address following: you have playlist with 500 
songs and you want to play it with smart random (starting with the 
higher rankings and ending to lower). While playing you notice not 
heard/rated song that you manually select. Since this has 0 stars, your 
selection "jumps" you through e.g. 400 better songs and now you are in 
"position" 401.. and after that you have to listen most probably ~100 
worse songs before smart playlist goes around :). This would get fixed 
if music tree/playlist would know what songs have been played and when 
we manually select song "out of order" the next one would be once again 
the next not-played "good" song.

Third one (that I'm not so interested personally but have heard others 
talking about) would be sort of Auto DJ or similar (as is in 
MediaMonkey). Meaning when playlist is getting near end, system 
automatically picks couple of new songs so that the playlist does not end.

I'm not sure how other players handle first two cases.. but if these are 
okay I probably try (slowly) to make patches for these issues.
-- 
   Otto