Assert that sampleCount doesn't narrow converting to 3d party types

src/blockfile/ODPCMAliasBlockFile.cpp

@@ -528,6 +528,9 @@ int ODPCMAliasBlockFile::ReadData(samplePtr data, sampleFormat format,
 
    mSilentAliasLog=FALSE;
 
+   // Third party library has its own type alias, check it
+   static_assert(sizeof(sampleCount::type) <= sizeof(sf_count_t),
+                 "Type sf_count_t is too narrow to hold a sampleCount");
    SFCall<sf_count_t>(sf_seek, sf.get(), mAliasStart + start, SEEK_SET);
 
    wxASSERT(info.channels >= 0);

src/blockfile/PCMAliasBlockFile.cpp

@@ -116,6 +116,9 @@ int PCMAliasBlockFile::ReadData(samplePtr data, sampleFormat format,
    }
    mSilentAliasLog=FALSE;
 
+   // Third party library has its own type alias, check it
+   static_assert(sizeof(sampleCount::type) <= sizeof(sf_count_t),
+                 "Type sf_count_t is too narrow to hold a sampleCount");
    SFCall<sf_count_t>(sf_seek, sf.get(), mAliasStart + start, SEEK_SET);
    wxASSERT(info.channels >= 0);
    SampleBuffer buffer(len * info.channels, floatSample);

src/effects/SBSMSEffect.cpp

@@ -306,6 +306,10 @@ bool EffectSBSMS::Process()
               outResampleCB = resampleCB;
               rb.offset = start;
               rb.end = end;
+               // Third party library has its own type alias, check it
+               static_assert(sizeof(sampleCount::type) <=
+                             sizeof(_sbsms_::SampleCountType),
+                             "Type _sbsms_::SampleCountType is too narrow to hold a sampleCount");
               rb.iface = std::make_unique<SBSMSInterfaceSliding>(&rateSlide,&pitchSlide,
                                                        bPitchReferenceInput,
                                                        samplesToProcess,0,

src/ondemand/ODDecodeFlacTask.cpp

@@ -190,6 +190,10 @@ int ODFlacDecoder::Decode(SampleBuffer & data, sampleFormat & format, sampleCoun
 
    mTargetChannel=channel;
 
+   // Third party library has its own type alias, check it
+   static_assert(sizeof(sampleCount::type) <=
+                 sizeof(FLAC__int64),
+                 "Type FLAC__int64 is too narrow to hold a sampleCount");
    if(!mFile->seek_absolute(start))
    {
       mFlacFileLock.Unlock();