NextFrame
NextFrame());
state->activation_frame, lastState->activation_frame, NextFrame(),
if (lastState->activation_frame >= NextFrame()) {
return TimeForFrame(NextFrame());
if (fStopPlayingFrame > 0 && fStopPlayingFrame <= NextFrame()) {
info->activation_frame = NextFrame();
return PlaylistFrameAtFrame(NextFrame());
int64 NextFrame() const;