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#include <QtTest/QtTest>

#include <QtMultimedia/QVideoFrame>
#include <QtGui/QImage>
#include <QtCore/QPointer>

class tst_QVideoFrame : public QObject
{
    Q_OBJECT
public:
    tst_QVideoFrame();
    ~tst_QVideoFrame();

public slots:
    void initTestCase();
    void cleanupTestCase();
    void init();
    void cleanup();

private slots:
    void create_data();
    void create();
    void createInvalid_data();
    void createInvalid();
    void createFromBuffer_data();
    void createFromBuffer();
    void createFromImage_data();
    void createFromImage();
    void createFromIncompatibleImage();
    void createNull();
    void destructor();
    void copy_data();
    void copy();
    void assign_data();
    void assign();
    void map_data();
    void map();
    void mapImage_data();
    void mapImage();
    void imageDetach();
};

Q_DECLARE_METATYPE(QImage::Format)
Q_DECLARE_METATYPE(QVideoFrame)

class QtTestVideoBuffer : public QObject, public QAbstractVideoBuffer
{
    Q_OBJECT
public:
    QtTestVideoBuffer()
        : QAbstractVideoBuffer(NoHandle) {}
    explicit QtTestVideoBuffer(QAbstractVideoBuffer::HandleType type)
        : QAbstractVideoBuffer(type) {}

    MapMode mapMode() const { return NotMapped; }

    uchar *map(MapMode, int *, int *) { return 0; }
    void unmap() {}
};

tst_QVideoFrame::tst_QVideoFrame()
{
}

tst_QVideoFrame::~tst_QVideoFrame()
{
}

void tst_QVideoFrame::initTestCase()
{
}

void tst_QVideoFrame::cleanupTestCase()
{
}

void tst_QVideoFrame::init()
{
}

void tst_QVideoFrame::cleanup()
{
}

void tst_QVideoFrame::create_data()
{
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");
    QTest::addColumn<int>("bytes");
    QTest::addColumn<int>("bytesPerLine");

    QTest::newRow("64x64 ARGB32")
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32
            << 16384
            << 256;
    QTest::newRow("32x256 YUV420P")
            << QSize(32, 256)
            << QVideoFrame::Format_YUV420P
            << 13288
            << 32;
}

void tst_QVideoFrame::create()
{
    QFETCH(QSize, size);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);
    QFETCH(int, bytes);
    QFETCH(int, bytesPerLine);

    QVideoFrame frame(bytes, size, bytesPerLine, pixelFormat);

    QVERIFY(frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), pixelFormat);
    QCOMPARE(frame.size(), size);
    QCOMPARE(frame.width(), size.width());
    QCOMPARE(frame.height(), size.height());
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::createInvalid_data()
{
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");
    QTest::addColumn<int>("bytes");
    QTest::addColumn<int>("bytesPerLine");

    QTest::newRow("64x64 ARGB32 0 size")
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32
            << 0
            << 45;
    QTest::newRow("32x256 YUV420P negative size")
            << QSize(32, 256)
            << QVideoFrame::Format_YUV420P
            << -13288
            << 32;
}

void tst_QVideoFrame::createInvalid()
{
    QFETCH(QSize, size);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);
    QFETCH(int, bytes);
    QFETCH(int, bytesPerLine);

    QVideoFrame frame(bytes, size, bytesPerLine, pixelFormat);

    QVERIFY(!frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), pixelFormat);
    QCOMPARE(frame.size(), size);
    QCOMPARE(frame.width(), size.width());
    QCOMPARE(frame.height(), size.height());
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::createFromBuffer_data()
{
    QTest::addColumn<QAbstractVideoBuffer::HandleType>("handleType");
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");

    QTest::newRow("64x64 ARGB32 no handle")
            << QAbstractVideoBuffer::NoHandle
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32;
    QTest::newRow("64x64 ARGB32 gl handle")
            << QAbstractVideoBuffer::GLTextureHandle
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32;
    QTest::newRow("64x64 ARGB32 user handle")
            << QAbstractVideoBuffer::UserHandle
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32;
}

void tst_QVideoFrame::createFromBuffer()
{
    QFETCH(QAbstractVideoBuffer::HandleType, handleType);
    QFETCH(QSize, size);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);

    QVideoFrame frame(new QtTestVideoBuffer(handleType), size, pixelFormat);

    QVERIFY(frame.isValid());
    QCOMPARE(frame.handleType(), handleType);
    QCOMPARE(frame.pixelFormat(), pixelFormat);
    QCOMPARE(frame.size(), size);
    QCOMPARE(frame.width(), size.width());
    QCOMPARE(frame.height(), size.height());
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::createFromImage_data()
{
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QImage::Format>("imageFormat");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");

    QTest::newRow("64x64 RGB32")
            << QSize(64, 64)
            << QImage::Format_RGB32
            << QVideoFrame::Format_RGB32;
    QTest::newRow("12x45 RGB16")
            << QSize(12, 45)
            << QImage::Format_RGB16
            << QVideoFrame::Format_RGB565;
    QTest::newRow("19x46 ARGB32_Premultiplied")
            << QSize(19, 46)
            << QImage::Format_ARGB32_Premultiplied
            << QVideoFrame::Format_ARGB32_Premultiplied;
}

void tst_QVideoFrame::createFromImage()
{
    QFETCH(QSize, size);
    QFETCH(QImage::Format, imageFormat);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);

    const QImage image(size.width(), size.height(), imageFormat);

    QVideoFrame frame(image);

    QVERIFY(frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), pixelFormat);
    QCOMPARE(frame.size(), size);
    QCOMPARE(frame.width(), size.width());
    QCOMPARE(frame.height(), size.height());
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::createFromIncompatibleImage()
{
    const QImage image(64, 64, QImage::Format_Mono);

    QVideoFrame frame(image);

    QVERIFY(!frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_Invalid);
    QCOMPARE(frame.size(), QSize(64, 64));
    QCOMPARE(frame.width(), 64);
    QCOMPARE(frame.height(), 64);
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::createNull()
{
    QVideoFrame frame;

    QVERIFY(!frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_Invalid);
    QCOMPARE(frame.size(), QSize());
    QCOMPARE(frame.width(), -1);
    QCOMPARE(frame.height(), -1);
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::destructor()
{
    QPointer<QtTestVideoBuffer> buffer = new QtTestVideoBuffer;

    {
        QVideoFrame frame(buffer, QSize(4, 1), QVideoFrame::Format_ARGB32);
    }

    QVERIFY(buffer.isNull());
}

void tst_QVideoFrame::copy_data()
{
    QTest::addColumn<QAbstractVideoBuffer::HandleType>("handleType");
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");
    QTest::addColumn<QVideoFrame::FieldType>("fieldType");
    QTest::addColumn<qint64>("startTime");
    QTest::addColumn<qint64>("endTime");

    QTest::newRow("64x64 ARGB32")
            << QAbstractVideoBuffer::GLTextureHandle
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32
            << QVideoFrame::TopField
            << qint64(63641740)
            << qint64(63641954);
    QTest::newRow("32x256 YUV420P")
            << QAbstractVideoBuffer::UserHandle
            << QSize(32, 256)
            << QVideoFrame::Format_YUV420P
            << QVideoFrame::InterlacedFrame
            << qint64(12345)
            << qint64(12389);
}

void tst_QVideoFrame::copy()
{
    QFETCH(QAbstractVideoBuffer::HandleType, handleType);
    QFETCH(QSize, size);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);
    QFETCH(QVideoFrame::FieldType, fieldType);
    QFETCH(qint64, startTime);
    QFETCH(qint64, endTime);

    QPointer<QtTestVideoBuffer> buffer = new QtTestVideoBuffer(handleType);

    {
        QVideoFrame frame(buffer, size, pixelFormat);
        frame.setFieldType(QVideoFrame::FieldType(fieldType));
        frame.setStartTime(startTime);
        frame.setEndTime(endTime);

        QVERIFY(frame.isValid());
        QCOMPARE(frame.handleType(), handleType);
        QCOMPARE(frame.pixelFormat(), pixelFormat);
        QCOMPARE(frame.size(), size);
        QCOMPARE(frame.width(), size.width());
        QCOMPARE(frame.height(), size.height());
        QCOMPARE(frame.fieldType(), fieldType);
        QCOMPARE(frame.startTime(), startTime);
        QCOMPARE(frame.endTime(), endTime);

        {
            QVideoFrame otherFrame(frame);

            QVERIFY(!buffer.isNull());

            QVERIFY(otherFrame.isValid());
            QCOMPARE(otherFrame.handleType(), handleType);
            QCOMPARE(otherFrame.pixelFormat(), pixelFormat);
            QCOMPARE(otherFrame.size(), size);
            QCOMPARE(otherFrame.width(), size.width());
            QCOMPARE(otherFrame.height(), size.height());
            QCOMPARE(otherFrame.fieldType(), fieldType);
            QCOMPARE(otherFrame.startTime(), startTime);
            QCOMPARE(otherFrame.endTime(), endTime);

            otherFrame.setEndTime(-1);

            QVERIFY(!buffer.isNull());

            QVERIFY(otherFrame.isValid());    
            QCOMPARE(otherFrame.handleType(), handleType);
            QCOMPARE(otherFrame.pixelFormat(), pixelFormat);
            QCOMPARE(otherFrame.size(), size);
            QCOMPARE(otherFrame.width(), size.width());
            QCOMPARE(otherFrame.height(), size.height());
            QCOMPARE(otherFrame.fieldType(), fieldType);
            QCOMPARE(otherFrame.startTime(), startTime);
            QCOMPARE(otherFrame.endTime(), qint64(-1));
        }

        QVERIFY(!buffer.isNull());

        QVERIFY(frame.isValid());
        QCOMPARE(frame.handleType(), handleType);
        QCOMPARE(frame.pixelFormat(), pixelFormat);
        QCOMPARE(frame.size(), size);
        QCOMPARE(frame.width(), size.width());
        QCOMPARE(frame.height(), size.height());
        QCOMPARE(frame.fieldType(), fieldType);
        QCOMPARE(frame.startTime(), startTime);
        QCOMPARE(frame.endTime(), qint64(-1));  // Explicitly shared.
    }

    QVERIFY(buffer.isNull());
}

void tst_QVideoFrame::assign_data()
{
    QTest::addColumn<QAbstractVideoBuffer::HandleType>("handleType");
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");
    QTest::addColumn<QVideoFrame::FieldType>("fieldType");
    QTest::addColumn<qint64>("startTime");
    QTest::addColumn<qint64>("endTime");

    QTest::newRow("64x64 ARGB32")
            << QAbstractVideoBuffer::GLTextureHandle
            << QSize(64, 64)
            << QVideoFrame::Format_ARGB32
            << QVideoFrame::TopField
            << qint64(63641740)
            << qint64(63641954);
    QTest::newRow("32x256 YUV420P")
            << QAbstractVideoBuffer::UserHandle
            << QSize(32, 256)
            << QVideoFrame::Format_YUV420P
            << QVideoFrame::InterlacedFrame
            << qint64(12345)
            << qint64(12389);
}

void tst_QVideoFrame::assign()
{
    QFETCH(QAbstractVideoBuffer::HandleType, handleType);
    QFETCH(QSize, size);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);
    QFETCH(QVideoFrame::FieldType, fieldType);
    QFETCH(qint64, startTime);
    QFETCH(qint64, endTime);

    QPointer<QtTestVideoBuffer> buffer = new QtTestVideoBuffer(handleType);

    QVideoFrame frame;
    {
        QVideoFrame otherFrame(buffer, size, pixelFormat);
        otherFrame.setFieldType(fieldType);
        otherFrame.setStartTime(startTime);
        otherFrame.setEndTime(endTime);

        frame = otherFrame;

        QVERIFY(!buffer.isNull());

        QVERIFY(otherFrame.isValid());
        QCOMPARE(otherFrame.handleType(), handleType);
        QCOMPARE(otherFrame.pixelFormat(), pixelFormat);
        QCOMPARE(otherFrame.size(), size);
        QCOMPARE(otherFrame.width(), size.width());
        QCOMPARE(otherFrame.height(), size.height());
        QCOMPARE(otherFrame.fieldType(), fieldType);
        QCOMPARE(otherFrame.startTime(), startTime);
        QCOMPARE(otherFrame.endTime(), endTime);

        otherFrame.setStartTime(-1);

        QVERIFY(!buffer.isNull());

        QVERIFY(otherFrame.isValid());
        QCOMPARE(otherFrame.handleType(), handleType);
        QCOMPARE(otherFrame.pixelFormat(), pixelFormat);
        QCOMPARE(otherFrame.size(), size);
        QCOMPARE(otherFrame.width(), size.width());
        QCOMPARE(otherFrame.height(), size.height());
        QCOMPARE(otherFrame.fieldType(), fieldType);
        QCOMPARE(otherFrame.startTime(), qint64(-1));
        QCOMPARE(otherFrame.endTime(), endTime);
    }

    QVERIFY(!buffer.isNull());

    QVERIFY(frame.isValid());
    QCOMPARE(frame.handleType(), handleType);
    QCOMPARE(frame.pixelFormat(), pixelFormat);
    QCOMPARE(frame.size(), size);
    QCOMPARE(frame.width(), size.width());
    QCOMPARE(frame.height(), size.height());
    QCOMPARE(frame.fieldType(), fieldType);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), endTime);

    frame = QVideoFrame();

    QVERIFY(buffer.isNull());

    QVERIFY(!frame.isValid());
    QCOMPARE(frame.handleType(), QAbstractVideoBuffer::NoHandle);
    QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_Invalid);
    QCOMPARE(frame.size(), QSize());
    QCOMPARE(frame.width(), -1);
    QCOMPARE(frame.height(), -1);
    QCOMPARE(frame.fieldType(), QVideoFrame::ProgressiveFrame);
    QCOMPARE(frame.startTime(), qint64(-1));
    QCOMPARE(frame.endTime(), qint64(-1));
}

void tst_QVideoFrame::map_data()
{
    QTest::addColumn<QSize>("size");
    QTest::addColumn<int>("mappedBytes");
    QTest::addColumn<int>("bytesPerLine");
    QTest::addColumn<QVideoFrame::PixelFormat>("pixelFormat");
    QTest::addColumn<QAbstractVideoBuffer::MapMode>("mode");

    QTest::newRow("read-only")
            << QSize(64, 64)
            << 16384
            << 256
            << QVideoFrame::Format_ARGB32
            << QAbstractVideoBuffer::ReadOnly;

    QTest::newRow("write-only")
            << QSize(64, 64)
            << 16384
            << 256
            << QVideoFrame::Format_ARGB32
            << QAbstractVideoBuffer::WriteOnly;

    QTest::newRow("read-write")
            << QSize(64, 64)
            << 16384
            << 256
            << QVideoFrame::Format_ARGB32
            << QAbstractVideoBuffer::ReadWrite;
}

void tst_QVideoFrame::map()
{
    QFETCH(QSize, size);
    QFETCH(int, mappedBytes);
    QFETCH(int, bytesPerLine);
    QFETCH(QVideoFrame::PixelFormat, pixelFormat);
    QFETCH(QAbstractVideoBuffer::MapMode, mode);

    QVideoFrame frame(mappedBytes, size, bytesPerLine, pixelFormat);

    QVERIFY(!frame.bits());
    QCOMPARE(frame.mappedBytes(), 0);
    QCOMPARE(frame.bytesPerLine(), 0);
    QCOMPARE(frame.mapMode(), QAbstractVideoBuffer::NotMapped);

    QVERIFY(frame.map(mode));

    QVERIFY(frame.bits());
    QCOMPARE(frame.mappedBytes(), mappedBytes);
    QCOMPARE(frame.bytesPerLine(), bytesPerLine);
    QCOMPARE(frame.mapMode(), mode);

    frame.unmap();

    QVERIFY(!frame.bits());
    QCOMPARE(frame.mappedBytes(), 0);
    QCOMPARE(frame.bytesPerLine(), 0);
    QCOMPARE(frame.mapMode(), QAbstractVideoBuffer::NotMapped);
}

void tst_QVideoFrame::mapImage_data()
{
    QTest::addColumn<QSize>("size");
    QTest::addColumn<QImage::Format>("format");
    QTest::addColumn<QAbstractVideoBuffer::MapMode>("mode");

    QTest::newRow("read-only")
            << QSize(64, 64)
            << QImage::Format_ARGB32
            << QAbstractVideoBuffer::ReadOnly;

    QTest::newRow("write-only")
            << QSize(15, 106)
            << QImage::Format_RGB32
            << QAbstractVideoBuffer::WriteOnly;

    QTest::newRow("read-write")
            << QSize(23, 111)
            << QImage::Format_RGB16
            << QAbstractVideoBuffer::ReadWrite;
}

void tst_QVideoFrame::mapImage()
{
    QFETCH(QSize, size);
    QFETCH(QImage::Format, format);
    QFETCH(QAbstractVideoBuffer::MapMode, mode);

    QImage image(size.width(), size.height(), format);

    QVideoFrame frame(image);

    QVERIFY(!frame.bits());
    QCOMPARE(frame.mappedBytes(), 0);
    QCOMPARE(frame.bytesPerLine(), 0);
    QCOMPARE(frame.mapMode(), QAbstractVideoBuffer::NotMapped);

    QVERIFY(frame.map(mode));

    QVERIFY(frame.bits());
    QCOMPARE(frame.mappedBytes(), image.numBytes());
    QCOMPARE(frame.bytesPerLine(), image.bytesPerLine());
    QCOMPARE(frame.mapMode(), mode);

    frame.unmap();

    QVERIFY(!frame.bits());
    QCOMPARE(frame.mappedBytes(), 0);
    QCOMPARE(frame.bytesPerLine(), 0);
    QCOMPARE(frame.mapMode(), QAbstractVideoBuffer::NotMapped);
}

void tst_QVideoFrame::imageDetach()
{
    const uint red = qRgb(255, 0, 0);
    const uint blue = qRgb(0, 0, 255);

    QImage image(8, 8, QImage::Format_RGB32);

    image.fill(red);
    QCOMPARE(image.pixel(4, 4), red);

    QVideoFrame frame(image);

    QVERIFY(frame.map(QAbstractVideoBuffer::ReadWrite));

    QImage frameImage(frame.bits(), 8, 8, frame.bytesPerLine(), QImage::Format_RGB32);

    QCOMPARE(frameImage.pixel(4, 4), red);

    frameImage.fill(blue);
    QCOMPARE(frameImage.pixel(4, 4), blue);

    // Original image has detached and is therefore unchanged.
    QCOMPARE(image.pixel(4, 4), red);
}

QTEST_MAIN(tst_QVideoFrame)

#include "tst_qvideoframe.moc"
