ALSA: Fix sync after seek, fix pause.
ALSA: Fix sync after seek, fix pause.

mammadori/pyglet,oktayacikalin/pyglet,mammadori/pyglet,oktayacikalin/pyglet,theblacklion/pyglet,mammadori/pyglet,oktayacikalin/pyglet,theblacklion/pyglet,theblacklion/pyglet,oktayacikalin/pyglet,oktayacikalin/pyglet,theblacklion/pyglet,theblacklion/pyglet,mammadori/pyglet