fPanRamp
delete fPanRamp;
fPanRamp = NULL;
fPanRamp = InitRamp(&fPan, pan, fFormat.frame_rate, duration);
if (fPanRamp)
attributes[i].duration = fPanRamp->duration;
if (fPanRamp) {
if (ChangeRamp(fPanRamp)) {
delete fPanRamp;
fPanRamp = NULL;
delete fPanRamp;
fPanRamp = NULL;
delete fPanRamp;
_gs_ramp* fPanRamp;