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b9e2410a2a096a825d0f266598ae816620238ff1
qtmultimedia/tests/auto/unit/qaudiobuffer/tst_qaudiobuffer.cpp
Michael Goddard b9e2410a2a Fix QAudioBuffer sampleCount vs. channelCount. 
There were some inconsistencies in when the sample count was per channel
or in total.  The docs mention that it is in total, so fix a few cases
where it went wrong and test it.

Change-Id: I55c855911fcde66a218d6cdd327e09ad5406d5a4
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
Reviewed-by: Lev Zelenskiy <lev.zelenskiy@nokia.com>
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
2012-02-21 07:35:23 +01:00

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/QString>
#include <QtTest/QtTest>
#include <qaudiobuffer.h>
class tst_QAudioBuffer : public QObject
{
Q_OBJECT
public:
tst_QAudioBuffer();
~tst_QAudioBuffer();
private Q_SLOTS:
void ctors();
void assign();
void constData() const;
void data_const() const;
void data();
void durations();
void durations_data();
void stereoSample();
private:
QAudioFormat mFormat;
QAudioBuffer *mNull;
QAudioBuffer *mEmpty;
QAudioBuffer *mFromArray;
};
tst_QAudioBuffer::tst_QAudioBuffer()
{
// Initialize some common buffers
mFormat.setChannelCount(2);
mFormat.setSampleSize(16);
mFormat.setSampleType(QAudioFormat::UnSignedInt);
mFormat.setSampleRate(10000);
mFormat.setCodec("audio/x-pcm"); // XXX this is not a good fit?
QByteArray b(4000, 0x80);
mNull = new QAudioBuffer;
mEmpty = new QAudioBuffer(1000, mFormat); // 1000 samples of 16 bits -> 2KB
mFromArray = new QAudioBuffer(b, mFormat);
}
tst_QAudioBuffer::~tst_QAudioBuffer()
{
delete mNull;
delete mEmpty;
delete mFromArray;
}
void tst_QAudioBuffer::ctors()
{
// Null buffer
QVERIFY(!mNull->isValid());
QVERIFY(mNull->constData() == 0);
QVERIFY(mNull->data() == 0);
QVERIFY(((const QAudioBuffer*)mNull)->data() == 0);
QCOMPARE(mNull->duration(), 0LL);
QCOMPARE(mNull->byteCount(), 0);
QCOMPARE(mNull->sampleCount(), 0);
QCOMPARE(mNull->startTime(), -1LL);
// Empty buffer
QVERIFY(mEmpty->isValid());
QVERIFY(mEmpty->constData() != 0);
QVERIFY(mEmpty->data() != 0);
QVERIFY(((const QAudioBuffer*)mEmpty)->data() != 0);
QCOMPARE(mEmpty->sampleCount(), 1000);
QCOMPARE(mEmpty->duration(), 50000LL);
QCOMPARE(mEmpty->byteCount(), 2000);
QCOMPARE(mEmpty->startTime(), -1LL);
// bytearray buffer
QVERIFY(mFromArray->isValid());
QVERIFY(mFromArray->constData() != 0);
QVERIFY(mFromArray->data() != 0);
QVERIFY(((const QAudioBuffer*)mFromArray)->data() != 0);
/// 4000 bytes at 10KHz, 2ch, 16bit = 40kBps -> 0.1s
QCOMPARE(mFromArray->duration(), 100000LL);
QCOMPARE(mFromArray->byteCount(), 4000);
QCOMPARE(mFromArray->sampleCount(), 2000);
QCOMPARE(mFromArray->startTime(), -1LL);
// Now some invalid buffers
QAudioBuffer badFormat(1000, QAudioFormat());
QVERIFY(!badFormat.isValid());
QVERIFY(badFormat.constData() == 0);
QVERIFY(badFormat.data() == 0);
QVERIFY(((const QAudioBuffer*)&badFormat)->data() == 0);
QCOMPARE(badFormat.duration(), 0LL);
QCOMPARE(badFormat.byteCount(), 0);
QCOMPARE(badFormat.sampleCount(), 0);
QCOMPARE(badFormat.startTime(), -1LL);
QAudioBuffer badArray(QByteArray(), mFormat);
QVERIFY(!badArray.isValid());
QVERIFY(badArray.constData() == 0);
QVERIFY(badArray.data() == 0);
QVERIFY(((const QAudioBuffer*)&badArray)->data() == 0);
QCOMPARE(badArray.duration(), 0LL);
QCOMPARE(badArray.byteCount(), 0);
QCOMPARE(badArray.sampleCount(), 0);
QCOMPARE(badArray.startTime(), -1LL);
QAudioBuffer badBoth = QAudioBuffer(QByteArray(), QAudioFormat());
QVERIFY(!badBoth.isValid());
QVERIFY(badBoth.constData() == 0);
QVERIFY(badBoth.data() == 0);
QVERIFY(((const QAudioBuffer*)&badBoth)->data() == 0);
QCOMPARE(badBoth.duration(), 0LL);
QCOMPARE(badBoth.byteCount(), 0);
QCOMPARE(badBoth.sampleCount(), 0);
QCOMPARE(badBoth.startTime(), -1LL);
}
void tst_QAudioBuffer::assign()
{
// Needs strong behaviour definition
}
void tst_QAudioBuffer::constData() const
{
const void *data = mEmpty->constData();
QVERIFY(data != 0);
const unsigned int *idata = reinterpret_cast<const unsigned int*>(data);
QCOMPARE(*idata, 0U);
const QAudioBuffer::S8U *sdata = mEmpty->constData<QAudioBuffer::S8U>();
QVERIFY(sdata);
QCOMPARE(sdata->left, (unsigned char)0);
QCOMPARE(sdata->right, (unsigned char)0);
// The bytearray one should be 0x80
data = mFromArray->constData();
QVERIFY(data != 0);
idata = reinterpret_cast<const unsigned int *>(data);
QEXPECT_FAIL("", "Unsigned 16bits are cleared to 0x8080 currently", Continue);
QCOMPARE(*idata, 0x80008000);
sdata = mFromArray->constData<QAudioBuffer::S8U>();
QCOMPARE(sdata->left, (unsigned char)0x80);
QCOMPARE(sdata->right, (unsigned char)0x80);
}
void tst_QAudioBuffer::data_const() const
{
const void *data = ((const QAudioBuffer*)mEmpty)->data();
QVERIFY(data != 0);
const unsigned int *idata = reinterpret_cast<const unsigned int*>(data);
QCOMPARE(*idata, 0U);
const QAudioBuffer::S8U *sdata = ((const QAudioBuffer*)mEmpty)->constData<QAudioBuffer::S8U>();
QVERIFY(sdata);
QCOMPARE(sdata->left, (unsigned char)0);
QCOMPARE(sdata->right, (unsigned char)0);
// The bytearray one should be 0x80
data = ((const QAudioBuffer*)mFromArray)->data();
QVERIFY(data != 0);
idata = reinterpret_cast<const unsigned int *>(data);
QEXPECT_FAIL("", "Unsigned 16bits are cleared to 0x8080 currently", Continue);
QCOMPARE(*idata, 0x80008000);
sdata = ((const QAudioBuffer*)mFromArray)->constData<QAudioBuffer::S8U>();
QCOMPARE(sdata->left, (unsigned char)0x80);
QCOMPARE(sdata->right, (unsigned char)0x80);
}
void tst_QAudioBuffer::data()
{
void *data = mEmpty->data();
QVERIFY(data != 0);
unsigned int *idata = reinterpret_cast<unsigned int*>(data);
QCOMPARE(*idata, 0U);
QAudioBuffer::S8U *sdata = mEmpty->data<QAudioBuffer::S8U>();
QVERIFY(sdata);
QCOMPARE(sdata->left, (unsigned char)0);
QCOMPARE(sdata->right, (unsigned char)0);
// The bytearray one should be 0x80
data = mFromArray->data();
QVERIFY(data != 0);
idata = reinterpret_cast<unsigned int *>(data);
QEXPECT_FAIL("", "Unsigned 16bits are cleared to 0x8080 currently", Continue);
QCOMPARE(*idata, 0x80008000);
sdata = mFromArray->data<QAudioBuffer::S8U>();
QCOMPARE(sdata->left, (unsigned char)0x80);
QCOMPARE(sdata->right, (unsigned char)0x80);
}
void tst_QAudioBuffer::durations()
{
QFETCH(int, channelCount);
QFETCH(int, sampleSize);
QFETCH(int, sampleCount);
QFETCH(QAudioFormat::SampleType, sampleType);
QFETCH(int, sampleRate);
QFETCH(qint64, duration);
QFETCH(int, byteCount);
QAudioFormat f;
f.setChannelCount(channelCount);
f.setSampleType(sampleType);
f.setSampleSize(sampleSize);
f.setSampleRate(sampleRate);
f.setCodec("audio/x-pcm"); // XXX this is not a good fit?
QAudioBuffer b(sampleCount, f);
QCOMPARE(b.sampleCount(), sampleCount);
QCOMPARE(b.duration(), duration);
QCOMPARE(b.byteCount(), byteCount);
}
void tst_QAudioBuffer::durations_data()
{
QTest::addColumn<int>("channelCount");
QTest::addColumn<int>("sampleSize");
QTest::addColumn<int>("sampleCount");
QTest::addColumn<QAudioFormat::SampleType>("sampleType");
QTest::addColumn<int>("sampleRate");
QTest::addColumn<qint64>("duration");
QTest::addColumn<int>("byteCount");
QTest::newRow("M8_1000_8K") << 1 << 8 << 1000 << QAudioFormat::UnSignedInt << 8000 << 125000LL << 1000;
QTest::newRow("M8_2000_8K") << 1 << 8 << 2000 << QAudioFormat::UnSignedInt << 8000 << 250000LL << 2000;
QTest::newRow("M8_1000_4K") << 1 << 8 << 1000 << QAudioFormat::UnSignedInt << 4000 << 250000LL << 1000;
QTest::newRow("S8_1000_8K") << 2 << 8 << 1000 << QAudioFormat::UnSignedInt << 8000 << 62500LL << 1000;
QTest::newRow("SF_1000_8K") << 2 << 32 << 1000 << QAudioFormat::Float << 8000 << 62500LL << 4000;
QTest::newRow("4x128_1000_16K") << 4 << 128 << 1000 << QAudioFormat::SignedInt << 16000 << 15625LL << 16000;
}
void tst_QAudioBuffer::stereoSample()
{
// Uninitialized (should default to zero level for type)
QAudioBuffer::S8U s8u;
QAudioBuffer::S8S s8s;
QAudioBuffer::S16U s16u;
QAudioBuffer::S16S s16s;
QAudioBuffer::S32F s32f;
QCOMPARE(s8u.left, (unsigned char) 0x80);
QCOMPARE(s8u.right, (unsigned char) 0x80);
QCOMPARE(s8u.average(), (unsigned char) 0x80);
QCOMPARE(s8s.left, (signed char) 0x00);
QCOMPARE(s8s.right, (signed char) 0x00);
QCOMPARE(s8s.average(), (signed char) 0x0);
QCOMPARE(s16u.left, (unsigned short) 0x8000);
QCOMPARE(s16u.right, (unsigned short) 0x8000);
QCOMPARE(s16u.average(), (unsigned short) 0x8000);
QCOMPARE(s16s.left, (signed short) 0x0);
QCOMPARE(s16s.right, (signed short) 0x0);
QCOMPARE(s16s.average(), (signed short) 0x0);
QCOMPARE(s32f.left, 0.0f);
QCOMPARE(s32f.right, 0.0f);
QCOMPARE(s32f.average(), 0.0f);
// Initialized
QAudioBuffer::S8U s8u2(34, 145);
QAudioBuffer::S8S s8s2(23, -89);
QAudioBuffer::S16U s16u2(500, 45000);
QAudioBuffer::S16S s16s2(-10000, 346);
QAudioBuffer::S32F s32f2(500.7f, -123.1f);
QCOMPARE(s8u2.left, (unsigned char) 34);
QCOMPARE(s8u2.right, (unsigned char) 145);
QCOMPARE(s8u2.average(), (unsigned char) 89);
QCOMPARE(s8s2.left, (signed char) 23);
QCOMPARE(s8s2.right,(signed char) -89);
QCOMPARE(s8s2.average(), (signed char) -33);
QCOMPARE(s16u2.left, (unsigned short) 500);
QCOMPARE(s16u2.right, (unsigned short) 45000);
QCOMPARE(s16u2.average(), (unsigned short) 22750);
QCOMPARE(s16s2.left, (signed short) -10000);
QCOMPARE(s16s2.right, (signed short) 346);
QCOMPARE(s16s2.average(), (signed short) (-5000 + 173));
QCOMPARE(s32f2.left, 500.7f);
QCOMPARE(s32f2.right, -123.1f);
QCOMPARE(s32f2.average(), (500.7f - 123.1f)/2);
// Assigned
s8u = s8u2;
s8s = s8s2;
s16u = s16u2;
s16s = s16s2;
s32f = s32f2;
QCOMPARE(s8u.left, (unsigned char) 34);
QCOMPARE(s8u.right, (unsigned char) 145);
QCOMPARE(s8u.average(), (unsigned char) 89);
QCOMPARE(s8s.left, (signed char) 23);
QCOMPARE(s8s.right, (signed char) -89);
QCOMPARE(s8s.average(), (signed char) -33);
QCOMPARE(s16u.left, (unsigned short) 500);
QCOMPARE(s16u.right, (unsigned short) 45000);
QCOMPARE(s16u.average(), (unsigned short) 22750);
QCOMPARE(s16s.left, (signed short) -10000);
QCOMPARE(s16s.right, (signed short) 346);
QCOMPARE(s16s.average(), (signed short) (-5000 + 173));
QCOMPARE(s32f.left, 500.7f);
QCOMPARE(s32f.right, -123.1f);
QCOMPARE(s32f.average(), (500.7f - 123.1f)/2);
// Cleared
s8u.clear();
s8s.clear();
s16u.clear();
s16s.clear();
s32f.clear();
QCOMPARE(s8u.left, (unsigned char) 0x80);
QCOMPARE(s8u.right, (unsigned char) 0x80);
QCOMPARE(s8u.average(), (unsigned char) 0x80);
QCOMPARE(s8s.left, (signed char) 0x00);
QCOMPARE(s8s.right, (signed char) 0x00);
QCOMPARE(s8s.average(), (signed char) 0x0);
QCOMPARE(s16u.left, (unsigned short) 0x8000);
QCOMPARE(s16u.right, (unsigned short) 0x8000);
QCOMPARE(s16u.average(), (unsigned short) 0x8000);
QCOMPARE(s16s.left, (signed short) 0x0);
QCOMPARE(s16s.right, (signed short) 0x0);
QCOMPARE(s16s.average(), (signed short) 0x0);
QCOMPARE(s32f.left, 0.0f);
QCOMPARE(s32f.right, 0.0f);
QCOMPARE(s32f.average(), 0.0f);
}
QTEST_APPLESS_MAIN(tst_QAudioBuffer);
#include "tst_qaudiobuffer.moc"
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