ntv2qtmultiinput.cpp

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/* SPDX-License-Identifier: MIT */
#include "ntv2qtmultiinput.h"
#include "ntv2devicefeatures.h"
 
//
//  This array maps SDI input numbers 0 thru 3 to an NTV2InputSource...
//
static const NTV2InputSource    gInputNumberToInputSource [] =
{
    NTV2_INPUTSOURCE_SDI1,
    NTV2_INPUTSOURCE_SDI2,
    NTV2_INPUTSOURCE_SDI3,
    NTV2_INPUTSOURCE_SDI4,
    NTV2_INPUTSOURCE_SDI5,
    NTV2_INPUTSOURCE_SDI6,
    NTV2_INPUTSOURCE_SDI7,
    NTV2_INPUTSOURCE_SDI8,
 
};
 
 
NTV2QtMultiInput::NTV2QtMultiInput (QWidget * parent, Qt::WindowFlags flags)
    :   QDialog         (parent, flags)
{
    ::memset (mDeviceInputCounts, 0, sizeof(mDeviceInputCounts));
    ::memset (mFrameGrabbers, 0, sizeof(mFrameGrabbers));
 
    //  Build the device selector popup menu...
    CNTV2Card card;
    mDeviceChoicePopupMenu = new QComboBox;
    for (ULWord ndx(0);  CNTV2DeviceScanner::GetDeviceAtIndex(ndx, card);  ndx++)
    {
        mDeviceInputCounts[ndx] = card.features().GetNumVideoInputs();
        mDeviceChoicePopupMenu->addItem(card.GetDisplayName().c_str());
    }   //   for each AJA device found
    if (!mDeviceChoicePopupMenu->count())
        mDeviceChoicePopupMenu->addItem("No Devices Found");
 
    //  Default to the first quad-input device (if any)...
    uint32_t numInputs(4);
 
    for (ULWord ndx(0);  ndx < ULWord(mDeviceChoicePopupMenu->count());  ndx++)
        if (mDeviceInputCounts[ndx] == 8)
            numInputs = 8;  //  NOTE: hardcode for now
    QObject::connect (mDeviceChoicePopupMenu, SIGNAL(currentIndexChanged(int)),
                        this, SLOT(RequestDeviceChange(const int)));
    mDeviceChoicePopupMenu->setCurrentIndex(0);
 
    //  Set up each of the preview widgets and frame grabber threads...
    QSignalMapper * signalMapper = new QSignalMapper(this);
    for (uint32_t inputNumber(0);  inputNumber < numInputs;  inputNumber++)
    {
        mPreviewGroupBoxes[inputNumber]   = new QGroupBox(this);
        mPreviewWidgets[inputNumber]      = new AJAPreviewWidget(this);
        mPreviewWidgets[inputNumber]->setMinimumWidth (AJAPREVIEW_WIDGET_X / (numInputs/2));
        mPreviewWidgets[inputNumber]->setMinimumHeight (AJAPREVIEW_WIDGET_Y / (numInputs/2));
        mPreviewWidgets[inputNumber]->setSizePolicy (QSizePolicy ::Expanding, QSizePolicy ::Expanding);
        mFrameGrabbers[inputNumber]       = new NTV2FrameGrabber(this);
        mInputLabels[inputNumber]         = new QLabel("", this);
        mWithAudioCheckBoxes[inputNumber] = new QCheckBox("Audio", this);
        signalMapper->setMapping (mWithAudioCheckBoxes [inputNumber], inputNumber);
        #if defined (INCLUDE_AJACC)
            mWithCaptionsCheckBoxes [inputNumber] = new QCheckBox ("CC", this);
        #endif
 
        QVBoxLayout * layout = new QVBoxLayout;
        layout->addWidget (mPreviewWidgets [inputNumber]);
        layout->addWidget (mInputLabels [inputNumber]);
 
        QHBoxLayout *   bottomLayout (new QHBoxLayout);
        bottomLayout->setContentsMargins (0, 0, 0, 0);
        bottomLayout->addWidget (mWithAudioCheckBoxes [inputNumber]);
        #if defined (INCLUDE_AJACC)
            bottomLayout->addWidget (mWithCaptionsCheckBoxes [inputNumber]);
        #endif
        layout->addLayout (bottomLayout);
 
        mPreviewGroupBoxes[inputNumber]->setLayout (layout);
 
        connect (mFrameGrabbers[inputNumber], SIGNAL(newFrame(const QImage&, bool)),
                mPreviewWidgets[inputNumber], SLOT(updateFrame(const QImage&, bool)));
 
        connect (mFrameGrabbers[inputNumber], SIGNAL(newStatusString(const QString)),
                mInputLabels[inputNumber], SLOT(setText(const QString)));
 
        connect (mWithAudioCheckBoxes [inputNumber], SIGNAL(clicked()),
                signalMapper, SLOT(map()));
        #if defined (INCLUDE_AJACC)
            //connect (mWithCaptionsCheckBoxes [inputNumber], SIGNAL (clicked ()), signalMapper, SLOT (map ()));
        #endif
    }   //  for each video input
 
    //  Map all "with audio" checkbox clicks to a single handler...
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
    connect (signalMapper, SIGNAL (mappedInt (int)), this, SLOT (SlotAudioCheckBox (int)));
#else
    connect (signalMapper, SIGNAL (mapped (int)), this, SLOT (SlotAudioCheckBox (int)));
#endif
 
    //  Lay out everything...
    QGridLayout * glayout = new QGridLayout;
    if (numInputs == 4)
    {
        glayout->addWidget (mPreviewGroupBoxes [0], 0, 0);
        glayout->addWidget (mPreviewGroupBoxes [1], 0, 1);
        glayout->addWidget (mPreviewGroupBoxes [2], 1, 0);
        glayout->addWidget (mPreviewGroupBoxes [3], 1, 1);
    }
    else
    {
        glayout->addWidget (mPreviewGroupBoxes [0], 0, 0);
        glayout->addWidget (mPreviewGroupBoxes [1], 0, 1);
        glayout->addWidget (mPreviewGroupBoxes [2], 0, 2);
        glayout->addWidget (mPreviewGroupBoxes [3], 0, 3);
        glayout->addWidget (mPreviewGroupBoxes [4], 1, 0);
        glayout->addWidget (mPreviewGroupBoxes [5], 1, 1);
        glayout->addWidget (mPreviewGroupBoxes [6], 1, 2);
        glayout->addWidget (mPreviewGroupBoxes [7], 1, 3);
    }
 
    QVBoxLayout * vlayout = new QVBoxLayout;
    vlayout->addWidget (mDeviceChoicePopupMenu);
    vlayout->addLayout (glayout);
 
    setLayout (vlayout);
 
    //  Set up the frame grabber threads...
    for (uint32_t inputNumber (0);  inputNumber < numInputs;  inputNumber++)
    {
        mFrameGrabbers [inputNumber]->SetInputSource (gInputNumberToInputSource [inputNumber]);
        mFrameGrabbers [inputNumber]->SetWithAudio (false);
        mFrameGrabbers [inputNumber]->start ();
    }
 
    RequestDeviceChange(0);
 
}   //  constructor
 
 
NTV2QtMultiInput::~NTV2QtMultiInput ()
{
    qDebug ("## NOTE:  Leaving");
}
 
 
void NTV2QtMultiInput::SlotAudioCheckBox (const int inputNum)
{
    mFrameGrabbers [inputNum]->SetWithAudio (mWithAudioCheckBoxes [inputNum]->isChecked ());
}
 
 
void NTV2QtMultiInput::SlotCaptionsCheckBox (const int inputNum)
{
    (void) inputNum;
    //mFrameGrabbers [inputNum]->changeCaptionChannel (mWithAudioCheckBoxes [inputNum]->isChecked () ? NTV2_CC608_CC1 : NTV2_CC608_ChannelInvalid);
}
 
 
void NTV2QtMultiInput::RequestDeviceChange (const int inDeviceIndexNum)
{
    //  Notify each frame grabber to change devices...
    CNTV2Card dev;
    if (CNTV2DeviceScanner::GetDeviceAtIndex(inDeviceIndexNum, dev))
    {
        for (uint32_t inputNumber(0);  inputNumber < mDeviceInputCounts[inDeviceIndexNum];  inputNumber++)
            if (mFrameGrabbers[inputNumber])
                mFrameGrabbers[inputNumber]->SetDeviceIndex (dev.GetIndexNumber());
        qDebug ("## NOTE:  Device changed to %d", inDeviceIndexNum);
    }
}   //  RequestDeviceChange