Reviewed uses of InconsistencyException outside Sequence.cpp

src/Track.h

@@ -282,15 +282,18 @@ class AUDACITY_DLL_API Track /* not final */
 
    // Create a NEW track and modify this track
    // Return non-NULL or else throw
+   // May assume precondition: t0 <= t1
    virtual Holder Cut(double WXUNUSED(t0), double WXUNUSED(t1)) = 0;
 
    // Create a NEW track and don't modify this track
    // Return non-NULL or else throw
    // Note that subclasses may want to distinguish tracks stored in a clipboard
    // from those stored in a project
+   // May assume precondition: t0 <= t1
    virtual Holder Copy
       (double WXUNUSED(t0), double WXUNUSED(t1), bool forClipboard = true) const = 0;
 
+   // May assume precondition: t0 <= t1
    virtual void Clear(double WXUNUSED(t0), double WXUNUSED(t1)) = 0;
 
    virtual void Paste(double WXUNUSED(t), const Track * WXUNUSED(src)) = 0;
@@ -299,7 +302,10 @@ class AUDACITY_DLL_API Track /* not final */
    // is replaced by one of a different length.
    virtual void SyncLockAdjust(double oldT1, double newT1);
 
+   // May assume precondition: t0 <= t1
    virtual void Silence(double WXUNUSED(t0), double WXUNUSED(t1)) = 0;
+
+   // May assume precondition: t0 <= t1
    virtual void InsertSilence(double WXUNUSED(t), double WXUNUSED(len)) = 0;
 
    virtual int GetKind() const { return None; }

src/WaveClip.cpp

@@ -1833,8 +1833,9 @@ void WaveClip::ExpandCutLine(double cutLinePosition)
          [=](const WaveClipHolder &p) { return p.get() == cutline; });
       if (it != end)
          mCutLines.erase(it); // deletes cutline!
-      else
-         THROW_INCONSISTENCY_EXCEPTION;
+      else {
+         wxASSERT(false);
+      }
    }
 }
 

src/WaveTrack.cpp

@@ -560,6 +560,9 @@ void WaveTrack::ConvertToSampleFormat(sampleFormat format)
 
 bool WaveTrack::IsEmpty(double t0, double t1) const
 {
+   if (t0 > t1)
+      return true;
+
    //printf("Searching for overlap in %.6f...%.6f\n", t0, t1);
    for (const auto &clip : mClips)
    {
@@ -658,8 +661,8 @@ void WaveTrack::Trim (double t0, double t1)
    if(!inside1 && t1 < GetEndTime())
       Clear(t1,GetEndTime());
 
-   if(!inside0)
-      SplitDelete(0,t0);
+   if(!inside0 && t0 > GetStartTime())
+      SplitDelete(GetStartTime(), t0);
 }
 
 
@@ -1281,7 +1284,10 @@ void WaveTrack::Paste(double t0, const Track *src)
    bool singleClipMode = (other->GetNumClips() == 1 &&
          other->GetStartTime() == 0.0);
 
-   double insertDuration = other->GetEndTime();
+   const double insertDuration = other->GetEndTime();
+   if( insertDuration < 1.0/mRate )
+      return;
+
    //printf("Check if we need to make room for the pasted data\n");
 
    // Make room for the pasted data

src/WaveTrack.h

@@ -193,6 +193,7 @@ class AUDACITY_DLL_API WaveTrack final : public PlayableTrack {
 
    void Clear(double t0, double t1) override;
    void Paste(double t0, const Track *src) override;
+   // May assume precondition: t0 <= t1
    void ClearAndPaste(double t0, double t1,
                               const Track *src,
                               bool preserve = true,
@@ -205,15 +206,20 @@ class AUDACITY_DLL_API WaveTrack final : public PlayableTrack {
    void SplitAt(double t) /* not override */;
    void Split(double t0, double t1) /* not override */;
    // Track::Holder CutAndAddCutLine(double t0, double t1) /* not override */;
+   // May assume precondition: t0 <= t1
    void ClearAndAddCutLine(double t0, double t1) /* not override */;
 
    Track::Holder SplitCut(double t0, double t1) /* not override */;
+   // May assume precondition: t0 <= t1
    void SplitDelete(double t0, double t1) /* not override */;
    void Join(double t0, double t1) /* not override */;
+   // May assume precondition: t0 <= t1
    void Disjoin(double t0, double t1) /* not override */;
 
+   // May assume precondition: t0 <= t1
    void Trim(double t0, double t1) /* not override */;
 
+   // May assume precondition: t0 <= t1
    void HandleClear(double t0, double t1, bool addCutLines, bool split);
 
    void SyncLockAdjust(double oldT1, double newT1) override;
@@ -278,8 +284,10 @@ class AUDACITY_DLL_API WaveTrack final : public PlayableTrack {
    void GetEnvelopeValues(double *buffer, size_t bufferLen,
                          double t0) const;
 
+   // May assume precondition: t0 <= t1
    std::pair<float, float> GetMinMax(
       double t0, double t1, bool mayThrow = true) const;
+   // May assume precondition: t0 <= t1
    float GetRMS(double t0, double t1, bool mayThrow = true) const;
 
    //

src/effects/TruncSilence.cpp

@@ -471,7 +471,7 @@ bool EffectTruncSilence::DoRemoval
                            mTruncLongestAllowedSilence);
       }
 
-      double cutLen = inLength - outLength;
+      double cutLen = std::max(0.0, inLength - outLength);
       totalCutLen += cutLen;
 
       TrackListIterator iterOut(mOutputTracks.get());

src/import/ImportFFmpeg.cpp

@@ -557,7 +557,7 @@ ProgressResult FFmpegImportFileHandle::Import(TrackFactory *trackFactory,
          stream_delay = sc->m_stream->start_time;
          wxLogDebug(wxT("Stream %d start_time = %lld, that would be %f milliseconds."), s, (long long) sc->m_stream->start_time, double(sc->m_stream->start_time)/AV_TIME_BASE*1000);
       }
-      if (stream_delay != 0)
+      if (stream_delay > 0)
       {
          int c = -1;
          for (auto &channel : stream)