C++ (Cpp) LabelTrack::WarpLabels Examples

Example #1

File: SBSMSEffect.cpp Project: QuincyPYoung/audacity

// Labels inside the affected region are moved to match the audio; labels after
// it are shifted along appropriately.
bool EffectSBSMS::ProcessLabelTrack(Track *t)
{
   TimeWarper *warper = createTimeWarper(mT0,mT1,(mT1-mT0)*mTotalStretch,rateStart,rateEnd,rateSlideType);
   SetTimeWarper(new RegionTimeWarper(mT0, mT1, warper));
   LabelTrack *lt = (LabelTrack*)t;
   if (lt == NULL) return false;
   lt->WarpLabels(*GetTimeWarper());
   return true;
}

Example #2

File: ChangeSpeed.cpp Project: Rubelislam9950/Audacity

// Labels are time-scaled linearly inside the affected region, and labels after
// the region are shifted along according to how the region size changed.
bool EffectChangeSpeed::ProcessLabelTrack(Track *t)
{
   SetTimeWarper(new RegionTimeWarper(mT0, mT1,
                     new LinearTimeWarper(mT0, mT0,
                         mT1, mT0 + (mT1-mT0)*mFactor)));
   LabelTrack *lt = (LabelTrack*)t;
   if (lt == NULL) return false;
   lt->WarpLabels(*GetTimeWarper());
   return true;
}

Example #3

File: SoundTouchEffect.cpp Project: Avi2011class/audacity

bool EffectSoundTouch::ProcessLabelTrack(Track *track)
{
//   SetTimeWarper(new RegionTimeWarper(mCurT0, mCurT1,
 //           new LinearTimeWarper(mCurT0, mCurT0,
   //            mCurT1, mCurT0 + (mCurT1-mCurT0)*mFactor)));
   LabelTrack *lt = (LabelTrack*)track;
   if (lt == NULL) return false;
   lt->WarpLabels(*GetTimeWarper());
   return true;
}

Example #4

File: SBSMSEffect.cpp Project: ruthmagnus/audacity

// Labels inside the affected region are moved to match the audio; labels after
// it are shifted along appropriately.
bool EffectSBSMS::ProcessLabelTrack(Track *t)
{
   TimeWarper *warper = NULL;
   if (rateStart == rateEnd)
   {
      warper = new LinearTimeWarper(mT0, mT0,
            mT1, mT0+(mT1-mT0)*mTotalStretch);
   } else
   {
      warper = new LogarithmicTimeWarper(mT0, mT1,
            rateStart, rateEnd);
   }
   SetTimeWarper(new RegionTimeWarper(mT0, mT1, warper));
   LabelTrack *lt = (LabelTrack*)t;
   if (lt == NULL) return false;
   lt->WarpLabels(*GetTimeWarper());
   return true;
}