C++ WaveTrack::GetName方法代码示例

// Copy the track metadata but not the contents.
void WaveTrack::Init(const WaveTrack &orig)
{
   Track::Init(orig);
   mRate = orig.mRate;
   mGain = orig.mGain;
   mPan = orig.mPan;
   SetName(orig.GetName());
   mDisplay = orig.mDisplay;
   mDisplayMin = orig.mDisplayMin;
   mDisplayMax = orig.mDisplayMax;
}

// Copy the track metadata but not the contents.
void WaveTrack::Init(const WaveTrack &orig)
{
   Track::Init(orig);
   mFormat = orig.mFormat;
   mRate = orig.mRate;
   mGain = orig.mGain;
   mPan = orig.mPan;
   SetName(orig.GetName());
   mDisplay = orig.mDisplay;
   mDisplayMin = orig.mDisplayMin;
   mDisplayMax = orig.mDisplayMax;
   mDisplayNumLocations = 0;
   mDisplayLocations = NULL;
   mDisplayNumLocationsAllocated = 0;
}

bool EffectNormalize::Process()
{
   if (mGain == false && mDC == false)
      return true;

   float ratio;
   if( mGain )
      ratio = pow(10.0,TrapDouble(mLevel, // same value used for all tracks
                               NORMALIZE_DB_MIN,
                               NORMALIZE_DB_MAX)/20.0);
   else
      ratio = 1.0;

   //Iterate over each track
   this->CopyInputTracks(); // Set up mOutputTracks.
   bool bGoodResult = true;
   SelectedTrackListOfKindIterator iter(Track::Wave, mOutputTracks);
   WaveTrack *track = (WaveTrack *) iter.First();
   WaveTrack *prevTrack;
   prevTrack = track;
   mCurTrackNum = 0;
   wxString topMsg;
   if(mDC & mGain)
      topMsg = _("Removing DC offset and Normalizing...\n");
   else if(mDC & !mGain)
      topMsg = _("Removing DC offset...\n");
   else if(!mDC & mGain)
      topMsg = _("Normalizing without removing DC offset...\n");
   else if(!mDC & !mGain)
      topMsg = wxT("Not doing anything)...\n");   // shouldn't get here

   while (track) {
      //Get start and end times from track
      double trackStart = track->GetStartTime();
      double trackEnd = track->GetEndTime();

      //Set the current bounds to whichever left marker is
      //greater and whichever right marker is less:
      mCurT0 = mT0 < trackStart? trackStart: mT0;
      mCurT1 = mT1 > trackEnd? trackEnd: mT1;

      // Process only if the right marker is to the right of the left marker
      if (mCurT1 > mCurT0) {
         wxString msg;
         wxString trackName = track->GetName();

         if(!track->GetLinked() || mStereoInd)
            msg = topMsg + _("Analyzing: ") + trackName;
         else
            msg = topMsg + _("Analyzing first track of stereo pair: ") + trackName;
         AnalyseTrack(track, msg);  // sets mOffset and offset-adjusted mMin and mMax
         if(!track->GetLinked() || mStereoInd) {   // mono or 'stereo tracks independently'
            float extent = wxMax(fabs(mMax), fabs(mMin));
            if( (extent > 0) && mGain )
               mMult = ratio / extent;
            else
               mMult = 1.0;
            msg = topMsg + _("Processing: ") + trackName;
            if(track->GetLinked() || prevTrack->GetLinked())  // only get here if there is a linked track but we are processing independently
               msg = topMsg + _("Processing stereo channels independently: ") + trackName;

            if (!ProcessOne(track, msg))
            {
               bGoodResult = false;
               break;
            }
         }
         else
         {
            // we have a linked stereo track
            // so we need to find it's min, max and offset
            // as they are needed to calc the multiplier for both tracks
            float offset1 = mOffset;   // remember ones from first track
            float min1 = mMin;
            float max1 = mMax;
            track = (WaveTrack *) iter.Next();  // get the next one
            mCurTrackNum++;   // keeps progress bar correct
            msg = topMsg + _("Analyzing second track of stereo pair: ") + trackName;
            AnalyseTrack(track, msg);  // sets mOffset and offset-adjusted mMin and mMax
            float offset2 = mOffset;   // ones for second track
            float min2 = mMin;
            float max2 = mMax;
            float extent = wxMax(fabs(min1), fabs(max1));
            extent = wxMax(extent, fabs(min2));
            extent = wxMax(extent, fabs(max2));
            if( (extent > 0) && mGain )
               mMult = ratio / extent; // we need to use this for both linked tracks
            else
               mMult = 1.0;
            mOffset = offset1;
            track = (WaveTrack *) iter.Prev();  // go back to the first linked one
            mCurTrackNum--;   // keeps progress bar correct
            msg = topMsg + _("Processing first track of stereo pair: ") + trackName;
            if (!ProcessOne(track, msg))
            {
               bGoodResult = false;
               break;
            }
            mOffset = offset2;
            track = (WaveTrack *) iter.Next();  // go to the second linked one
//.........这里部分代码省略.........

bool VampEffect::Process()
{
   if (!mPlugin) return false;

   TrackListIterator iter(mWaveTracks);

   int count = 0;

   WaveTrack *left = (WaveTrack *)iter.First();

   bool multiple = false;
   int prevTrackChannels = 0;

   TrackListIterator scooter(iter);
   if (left->GetLinked()) scooter.Next();      
   if (scooter.Next()) {
      // if there is another track beyond this one and any linked one,
      // then we're processing more than one track.  That means we
      // should use the originating track name in each new label
      // track's name, to make clear which is which
      multiple = true;
   }

   while (left) {

      sampleCount lstart, rstart;
      sampleCount len;
      GetSamples(left, &lstart, &len);
      
      WaveTrack *right = NULL;
      int channels = 1;

      if (left->GetLinked()) {
         right = (WaveTrack *)iter.Next();
         channels = 2;
         GetSamples(right, &rstart, &len);
      }

      size_t step = mPlugin->getPreferredStepSize();
      size_t block = mPlugin->getPreferredBlockSize();

      bool initialiseRequired = true;

      if (block == 0) {
         if (step != 0) block = step;
         else block = 1024;
      }
      if (step == 0) {
         step = block;
      }

      if (prevTrackChannels > 0) {
         // Plugin has already been initialised, so if the number of
         // channels remains the same, we only need to do a reset.
         // Otherwise we need to re-construct the whole plugin,
         // because a Vamp plugin can't be re-initialised.
         if (prevTrackChannels == channels) {
            mPlugin->reset();
            initialiseRequired = false;
         } else {
            //!!! todo: retain parameters previously set
            Init();
         }
      }

      if (initialiseRequired) {
         if (!mPlugin->initialise(channels, step, block)) {
            wxMessageBox(_("Sorry, Vamp Plug-in failed to initialize."));
            return false;
         }
      }

      LabelTrack *ltrack = mFactory->NewLabelTrack();

      if (!multiple) {
         ltrack->SetName(GetEffectName());
      } else {
         ltrack->SetName(wxString::Format(wxT("%s: %s"),
                                          left->GetName().c_str(),
                                          GetEffectName().c_str()));
      }

      mTracks->Add(ltrack);

      float **data = new float*[channels];
      for (int c = 0; c < channels; ++c) data[c] = new float[block];

      sampleCount originalLen = len;
      sampleCount ls = lstart;
      sampleCount rs = rstart;

      while (len) {
         
         int request = block;
         if (request > len) request = len;

         if (left) left->Get((samplePtr)data[0], floatSample, ls, request);
         if (right) right->Get((samplePtr)data[1], floatSample, rs, request);

         if (request < (int)block) {
//.........这里部分代码省略.........