Here're the international acts;
Bohan Phoneix, Bronze Radio Return, Gacharic Spin, Gallops, Motorama, THE OTOGIBANASHI'S, Princess Nokia, Ringo Deathstarr, Soil & "Pimp Sessions", Spector, TOY, Tzusing, Vandetta.
Hong Kong, Taiwan and Mainland acts as follow;
Baibai (白百), Boys Climbing Ropes, Carsick Cars, Chaos Mind, DaBozz (大包子), David Boring, Hiperson (海朋森), Howie Lee, ShengXiang Band (生祥乐队), White+.
You want the full line-up with more description of the acts, you check out their WeChat post. Tickets 280rmb for a one-day pass or 460rmb for two, and they're already available on SmartTicket.cn here. Otherwise it's 380rmb for a day-pass at the gates.