Maxim's Atrac3plus decoder

[Hykem]

Nice to see the decoder is finally making it's way to FFmpeg. Great work Maxim.

During the past months I've been testing the decoder privately as well and I would like to take this opportunity to merge my reports with Henrik's.
After getting the decoder running and sorting a few issues on my side, it appears to be working on over 150 different games and is capable of decoding 6346 different files (all extracted from different games and with a huge help from nash67 at Emunewz.net).

I can't thank you enough for all this work and I wish you the best luck for the rest of the process. Even though it will take a while for ATRAC3+ to reach JPCSP (still has to go through Xuggler), PPSSPP will be able to implement it soon and give people the so long awaited missing sound.

Regards,
Hykem