comparison runner/FeatureExtractionManager.cpp @ 21:9a4e410bda7a

* Add --force option, and throw/catch exceptions for failure cases rather
  than exiting directly

 #include <vamp-hostsdk/PluginBufferingAdapter.h>
 #include <vamp-hostsdk/PluginInputDomainAdapter.h>
 #include <vamp-hostsdk/PluginSummarisingAdapter.h>
 #include <vamp-hostsdk/PluginWrapper.h>
 #include <vamp-hostsdk/PluginLoader.h>
+
+#include "base/Exceptions.h"
 
 #include <iostream>
 
 using namespace std;
 

 
     FileSource source(audioSource, &retrievalProgress);
     if (!source.isAvailable()) {
         cerr << "ERROR: File or URL \"" << audioSource.toStdString()
              << "\" could not be located" << endl;
-        exit(1);
+        throw FileNotFound(audioSource);
     }
     
     source.waitForData();
     
     if (QFileInfo(audioSource).suffix().toLower() == "m3u") {

             }
             return;
         } else {
             cerr << "ERROR: Playlist \"" << audioSource.toStdString()
                  << "\" could not be opened" << endl;
-            exit(1);
+            throw FileNotFound(audioSource);
         }
     }
 
     if (m_sampleRate == 0) {
         cerr << "ERROR: Internal error in FeatureExtractionManager::extractFeatures: Plugin list is non-empty, but no sample rate set" << endl;

 
     AudioFileReader *reader =
         AudioFileReaderFactory::createReader(source, m_sampleRate, &retrievalProgress);
     
     if (!reader) {
-        cerr << "ERROR: File or URL \"" << audioSource.toStdString()
-             << "\" could not be opened" << endl;
-        exit(1);
+        throw FailedToOpenFile(audioSource);
     }
 
     size_t channels = reader->getChannelCount();
 
     retrievalProgress.done();
 
     cerr << "Opened " << channels << "-channel file or URL \"" << audioSource.toStdString() << "\"" << endl;
 
     // reject file if it has too few channels, plugin will handle if it has too many
     if ((int)channels < m_channels) {
-        //!!! should not be terminating here!
-        cerr << "ERROR: File or URL \"" << audioSource.toStdString() << "\" has less than " << m_channels << " channels" << endl;
-        exit(1);
+        throw FileOperationFailed
+            (audioSource,
+             QString("read sufficient channels (found %1, require %2)")
+             .arg(channels).arg(m_channels));
     }
     
     // allocate audio buffers
     float **data = new float *[m_channels];
     for (int c = 0; c < m_channels; ++c) {