void QEvrVideoOverlay::openStateChanged(long state)
{
if (state == wmposMediaOpen) {
setDisplayRect(m_displayRect);
emit nativeSizeChanged();
}
};
void QEvrVideoOverlay::setAspectRatioMode(Qt::AspectRatioMode mode)
{
m_aspectRatioMode = mode;
if (m_displayControl) {
m_displayControl->SetAspectRatioMode(mode == Qt::KeepAspectRatio
? MFVideoARMode_PreservePicture
: MFVideoARMode_None);
setDisplayRect(m_displayRect);
}
}
void QEvrVideoOverlay::setDisplayControl(IMFVideoDisplayControl *control)
{
if (m_displayControl)
m_displayControl->Release();
m_displayControl = control;
if (m_displayControl) {
m_displayControl->AddRef();
m_displayControl->SetVideoWindow(m_winId);
m_displayControl->SetAspectRatioMode(m_aspectRatioMode == Qt::KeepAspectRatio
? MFVideoARMode_PreservePicture
: MFVideoARMode_None);
m_displayControl->SetBorderColor(m_windowColor);
setDisplayRect(m_displayRect);
}
}
void QEvrVideoOverlay::setWinId(WId id)
{
m_winId = id;
if (QWidget *widget = QWidget::find(m_winId)) {
const QColor color = widget->palette().color(QPalette::Window);
m_windowColor = RGB(color.red(), color.green(), color.blue());
}
if (m_displayControl) {
m_displayControl->SetVideoWindow(id);
m_displayControl->SetAspectRatioMode(m_aspectRatioMode == Qt::KeepAspectRatio
? MFVideoARMode_PreservePicture
: MFVideoARMode_None);
m_displayControl->SetBorderColor(m_windowColor);
setDisplayRect(m_displayRect);
}
}
void Vmr9VideoWindowControl::setAspectRatioMode(Qt::AspectRatioMode mode)
{
m_aspectRatioMode = mode;
if (IVMRWindowlessControl9 *control = com_cast<IVMRWindowlessControl9>(
m_filter, IID_IVMRWindowlessControl9)) {
switch (mode) {
case Qt::IgnoreAspectRatio:
control->SetAspectRatioMode(VMR9ARMode_None);
break;
case Qt::KeepAspectRatio:
control->SetAspectRatioMode(VMR9ARMode_LetterBox);
break;
case Qt::KeepAspectRatioByExpanding:
control->SetAspectRatioMode(VMR9ARMode_LetterBox);
setDisplayRect(m_displayRect);
break;
default:
break;
}
control->Release();
}
}
void Evr9VideoWindowControl::setAspectRatioMode(Qt::AspectRatioMode mode)
{
m_aspectRatioMode = mode;
if (m_displayControl) {
switch (mode) {
case Qt::IgnoreAspectRatio:
//comment from MSDN: Do not maintain the aspect ratio of the video. Stretch the video to fit the output rectangle.
m_displayControl->SetAspectRatioMode(MFVideoARMode_None);
break;
case Qt::KeepAspectRatio:
//comment from MSDN: Preserve the aspect ratio of the video by letterboxing or within the output rectangle.
m_displayControl->SetAspectRatioMode(MFVideoARMode_PreservePicture);
break;
case Qt::KeepAspectRatioByExpanding:
//for this mode, more adjustment will be done in setDisplayRect
m_displayControl->SetAspectRatioMode(MFVideoARMode_PreservePicture);
break;
default:
break;
}
setDisplayRect(m_displayRect);
}
}
