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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
/*
Sonic Visualiser
An audio file viewer and annotation editor.
Centre for Digital Music, Queen Mary, University of London.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version. See the file
COPYING included with this distribution for more information.
*/
#ifndef TEST_AUDIO_FILE_WRITER_H
#define TEST_AUDIO_FILE_WRITER_H
#include "../AudioFileReaderFactory.h"
#include "../AudioFileReader.h"
#include "../WavFileWriter.h"
#include "AudioTestData.h"
#include "bqvec/VectorOps.h"
#include "bqvec/Allocators.h"
#include <cmath>
#include <QObject>
#include <QtTest>
#include <QDir>
#include <iostream>
using namespace std;
using namespace breakfastquay;
class AudioFileWriterTest : public QObject
{
Q_OBJECT
private:
QString testDirBase;
QString outDir;
static const int rate = 44100;
public:
AudioFileWriterTest(QString base) {
if (base == "") {
base = "svcore/data/fileio/test";
}
testDirBase = base;
outDir = base + "/outfiles";
}
const char *strOf(QString s) {
return strdup(s.toLocal8Bit().data());
}
QString testName(bool direct, int channels) {
return QString("%1 %2 %3")
.arg(channels)
.arg(channels > 1 ? "channels" : "channel")
.arg(direct ? "direct" : "via temporary");
}
private slots:
void init()
{
if (!QDir(outDir).exists() && !QDir().mkpath(outDir)) {
SVCERR << "ERROR: Audio out directory \"" << outDir << "\" does not exist and could not be created" << endl;
QVERIFY2(QDir(outDir).exists(), "Audio out directory not found and could not be created");
}
}
void write_data()
{
QTest::addColumn<bool>("direct");
QTest::addColumn<int>("channels");
for (int direct = 0; direct <= 1; ++direct) {
for (int channels = 1; channels < 8; ++channels) {
if (channels == 1 || channels == 2 ||
channels == 5 || channels == 8) {
QString desc = testName(direct, channels);
QTest::newRow(strOf(desc)) << (bool)direct << channels;
}
}
}
}
void write()
{
QFETCH(bool, direct);
QFETCH(int, channels);
QString outfile = QString("%1/out-%2ch-%3.wav")
.arg(outDir).arg(channels).arg(direct ? "direct" : "via-temporary");
WavFileWriter writer(outfile,
rate,
channels,
direct ?
WavFileWriter::WriteToTarget :
WavFileWriter::WriteToTemporary);
QVERIFY(writer.isOK());
AudioTestData data(rate, channels);
data.generate();
sv_frame_t frameCount = data.getFrameCount();
float *interleaved = data.getInterleavedData();
float **nonInterleaved = allocate_channels<float>(channels, frameCount);
v_deinterleave(nonInterleaved, interleaved, channels, int(frameCount));
bool ok = writer.writeSamples(nonInterleaved, frameCount);
deallocate_channels(nonInterleaved, channels);
QVERIFY(ok);
ok = writer.close();
QVERIFY(ok);
AudioFileReaderFactory::Parameters params;
AudioFileReader *rereader =
AudioFileReaderFactory::createReader(outfile, params);
QVERIFY(rereader != nullptr);
floatvec_t readFrames = rereader->getInterleavedFrames(0, frameCount);
floatvec_t expected(interleaved, interleaved + frameCount * channels);
float threshold;
#ifdef WITHOUT_LIBSNDFILE
// 24-bit WAV
threshold = 1.0 / double(1 << 23);
#else
// IEEE float WAV
threshold = 0.0;
#endif
for (int i = 0; i < frameCount * channels; ++i) {
float diff = fabsf(readFrames[i] - expected[i]);
if (diff > threshold) {
SVCERR << "ERROR: at index " << i << ": difference (" << diff
<< ") between actual (" << readFrames[i]
<< ") and expected (" << expected[i]
<< ") exceeds threshold " << threshold << endl;
QCOMPARE(diff, 0.f);
break;
}
}
delete rereader;
}
};
#endif
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