ImportPlugin.cpp

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
ImportPlugin.cpp
 
Paul Licameli split from Import.cpp
 
**********************************************************************/
 
#include "ImportPlugin.h"
 
#include <wx/filename.h>
#include "WaveTrack.h"
#include "ProgressDialog.h"
#include "QualitySettings.h"
 
ImportPlugin::ImportPlugin(FileExtensions supportedExtensions):
   mExtensions( std::move( supportedExtensions ) )
{
}
 
ImportPlugin::~ImportPlugin() = default;
 
FileExtensions ImportPlugin::GetSupportedExtensions()
{
   return mExtensions;
}
 
bool ImportPlugin::SupportsExtension(const FileExtension &extension)
{
   // Case-insensitive check if extension is supported
   return mExtensions.Index(extension, false) != wxNOT_FOUND;
}
 
TranslatableString ImportPlugin::FailureHint() const
{
   return {};
}
 
ImportFileHandle::ImportFileHandle(const FilePath & filename)
:  mFilename(filename)
{
}
 
ImportFileHandle::~ImportFileHandle()
{
}
 
void ImportFileHandle::CreateProgress()
{
   wxFileName ff( mFilename );
 
   auto title = XO("Importing %s").Format( GetFileDescription() );
   mProgress = std::make_unique< ProgressDialog >(
      title, Verbatim( ff.GetFullName() ) );
}
 
sampleFormat ImportFileHandle::ChooseFormat(sampleFormat effectiveFormat)
{
   // Consult user preference
   auto defaultFormat = QualitySettings::SampleFormatChoice();
 
   // Don't choose format narrower than effective or default
   auto format = std::max(effectiveFormat, defaultFormat);
 
   // But also always promote 24 bits to float
   if (format > int16Sample)
      format = floatSample;
 
   return format;
}
 
std::shared_ptr<WaveTrack> ImportFileHandle::NewWaveTrack(
   WaveTrackFactory &trackFactory, sampleFormat effectiveFormat, double rate)
{
   return trackFactory.Create(ChooseFormat(effectiveFormat), rate);
}