slapin/qtmultimedia
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Files
4d13a15bae0e4ad978e7c455dc26650f6d879862
qtmultimedia/tests/auto/unit/qaudiobuffer/tst_qaudiobuffer.cpp
Michael Goddard 4d13a15bae Clarify API/docs by introducing the audio "frame", and add helpers. 
The frame is the interleaved set of one sample for each channel.  Add
some docs and some methods that make working with samples a bit more
convenient.

Adjusted QAudioBuffer to use these helper functions and terminology.

Change-Id: I96db48e659561972d6de2aa19893d29f9a828cd3
Reviewed-by: Dmytro Poplavskiy <dmytro.poplavskiy@nokia.com>
2012-07-11 08:01:45 +02:00

411 lines
13 KiB
C++
Raw Blame History

/****************************************************************************
**
** 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/pcm");
QByteArray b(4000, 0x80);
mNull = new QAudioBuffer;
mEmpty = new QAudioBuffer(500, mFormat); // 500 stereo frames 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->frameCount(), 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->frameCount(), 500);
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->frameCount(), 1000);
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.frameCount(), 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.frameCount(), 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.frameCount(), 0);
QCOMPARE(badBoth.startTime(), -1LL);
}
void tst_QAudioBuffer::assign()
{
// TODO 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, frameCount);
int sampleCount = frameCount * channelCount;
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/pcm");
QAudioBuffer b(frameCount, f);
QCOMPARE(b.frameCount(), frameCount);
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>("frameCount");
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 << 500 << QAudioFormat::UnSignedInt << 8000 << 62500LL << 1000;
QTest::newRow("SF_1000_8K") << 2 << 32 << 500 << QAudioFormat::Float << 8000 << 62500LL << 4000;
QTest::newRow("4x128_1000_16K") << 4 << 128 << 250 << 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"
Reference in New Issue View Git Blame Copy Permalink