diff data/fileio/test/AudioFileWriterTest.h @ 1527:710e6250a401 zoom

Merge from default branch

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data/fileio/test/AudioFileWriterTest.h	Mon Sep 17 13:51:14 2018 +0100
@@ -0,0 +1,135 @@
+/* -*- 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);
+        QCOMPARE(readFrames, expected);
+
+        delete rereader;
+    }
+};
+
+#endif