Chris@756: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@756: 
Chris@756: /*
Chris@756:     Sonic Visualiser
Chris@756:     An audio file viewer and annotation editor.
Chris@756:     Centre for Digital Music, Queen Mary, University of London.
Chris@756:     This file copyright 2013 Chris Cannam.
Chris@756:     
Chris@756:     This program is free software; you can redistribute it and/or
Chris@756:     modify it under the terms of the GNU General Public License as
Chris@756:     published by the Free Software Foundation; either version 2 of the
Chris@756:     License, or (at your option) any later version.  See the file
Chris@756:     COPYING included with this distribution for more information.
Chris@756: */
Chris@756: 
Chris@756: #ifndef TEST_AUDIO_FILE_READER_H
Chris@756: #define TEST_AUDIO_FILE_READER_H
Chris@756: 
Chris@756: #include "../AudioFileReaderFactory.h"
Chris@756: #include "../AudioFileReader.h"
Chris@756: 
Chris@756: #include "AudioTestData.h"
Chris@756: 
Chris@756: #include <cmath>
Chris@756: 
Chris@756: #include <QObject>
Chris@756: #include <QtTest>
Chris@756: #include <QDir>
Chris@756: 
Chris@756: #include <iostream>
Chris@756: 
Chris@756: using namespace std;
Chris@756: 
Chris@756: static QString audioDir = "testfiles";
Chris@756: 
Chris@756: class AudioFileReaderTest : public QObject
Chris@756: {
Chris@756:     Q_OBJECT
Chris@756: 
Chris@756:     const char *strOf(QString s) {
Chris@756:         return strdup(s.toLocal8Bit().data());
Chris@756:     }
Chris@756: 
Chris@756: private slots:
Chris@756:     void init()
Chris@756:     {
Chris@756:         if (!QDir(audioDir).exists()) {
Chris@756:             cerr << "ERROR: Audio test file directory \"" << audioDir << "\" does not exist" << endl;
Chris@756:             QVERIFY2(QDir(audioDir).exists(), "Audio test file directory not found");
Chris@756:         }
Chris@756:     }
Chris@756: 
Chris@756:     void read_data()
Chris@756:     {
Chris@756:         QTest::addColumn<QString>("audiofile");
Chris@756:         QStringList files = QDir(audioDir).entryList(QDir::Files);
Chris@756:         foreach (QString filename, files) {
Chris@756:             QTest::newRow(strOf(filename)) << filename;
Chris@756:         }
Chris@756:     }
Chris@756: 
Chris@756:     void read()
Chris@756:     {
Chris@756:         QFETCH(QString, audiofile);
Chris@756: 
Chris@756: 	AudioFileReader *reader =
Chris@756: 	    AudioFileReaderFactory::createReader
Chris@756: 	    (audioDir + "/" + audiofile, 48000);
Chris@756: 
Chris@756: 	if (!reader) {
Chris@756: 	    QSKIP(strOf(QString("File format for \"%1\" not supported, skipping").arg(audiofile)), SkipSingle);
Chris@756: 	}
Chris@756: 
Chris@756: 	int channels = reader->getChannelCount();
Chris@756: 	AudioTestData tdata(48000, channels);
Chris@756: 	
Chris@756: 	float *reference = tdata.getInterleavedData();
Chris@756: 	int refsize = tdata.getFrameCount() * channels;
Chris@756: 	
Chris@756: 	vector<float> test;
Chris@756: 	
Chris@756: 	// The reader should give us exactly the expected number of
Chris@756: 	// frames -- so we ask for one more, just to check we don't
Chris@756: 	// get it!
Chris@756: 	reader->getInterleavedFrames
Chris@756: 	    (0, tdata.getFrameCount() + 1, test);
Chris@756: 	int read = test.size() / channels;
Chris@756:      
Chris@756: 	// need to resolve questions about frame count at end of
Chris@756: 	// resampled file before we can do this
Chris@756: //!!!	QCOMPARE(read, tdata.getFrameCount());
Chris@756: 
Chris@756: 	float limit = 0.011;
Chris@756: 
Chris@756: 	for (int c = 0; c < channels; ++c) {
Chris@756: 	    float maxdiff = 0.f;
Chris@756: 	    int maxAt = 0;
Chris@756: 	    float totdiff = 0.f;
Chris@756: 	    for (int i = 0; i < read; ++i) {
Chris@756: 		float diff = fabsf(test[i * channels + c] -
Chris@756: 				   reference[i * channels + c]);
Chris@756: 		totdiff += diff;
Chris@756: 		if (diff > maxdiff) {
Chris@756: 		    maxdiff = diff;
Chris@756: 		    maxAt = i;
Chris@756: 		}
Chris@756: 	    }
Chris@756: 	    float meandiff = totdiff / read;
Chris@756: //	    cerr << "meandiff on channel " << c << ": " << meandiff << endl;
Chris@756: //	    cerr << "maxdiff on channel " << c << ": " << maxdiff << " at " << maxAt << endl;
Chris@756: 	    if (maxdiff >= limit) {
Chris@756: 		cerr << "ERROR: for audiofile " << audiofile << ": maxdiff = " << maxdiff << " at frame " << maxAt << " of " << read << " on channel " << c << " (mean diff = " << meandiff << ")" << endl;
Chris@756: 		QVERIFY(maxdiff < limit);
Chris@756: 	    }
Chris@756: 	}
Chris@756:     }
Chris@756: };
Chris@756: 
Chris@756: #endif