int ArraySetDlg::exec()
{
int w,h;
getModeSize( w, h );
ui.mLabTipDis->setText(QString(toChs("当前模式是%1 X %2，建议至少为%3。")).arg(w).arg(h).arg(w+50));
ui.mSpinDis->setValue( w + 50 );
return QDialog::exec();
}
void AVForm::selectBestModes(QVector<VideoMode> &allVideoModes)
{
// Identify the best resolutions available for the supposed XXXXp resolutions.
std::map<int, VideoMode> idealModes;
idealModes[120] = VideoMode(160, 120);
idealModes[240] = VideoMode(430, 240);
idealModes[360] = VideoMode(640, 360);
idealModes[480] = VideoMode(854, 480);
idealModes[720] = VideoMode(1280, 720);
idealModes[1080] = VideoMode(1920, 1080);
std::map<int, int> bestModeInds;
for (int i = 0; i < allVideoModes.size(); ++i)
{
VideoMode mode = allVideoModes[i];
// PS3-Cam protection, everything above 60fps makes no sense
if (mode.FPS > 60)
continue;
for (auto iter = idealModes.begin(); iter != idealModes.end(); ++iter)
{
int res = iter->first;
VideoMode idealMode = iter->second;
// don't take approximately correct resolutions unless they really
// are close
if (mode.norm(idealMode) > 300)
continue;
if (bestModeInds.find(res) == bestModeInds.end())
{
bestModeInds[res] = i;
continue;
}
int index = bestModeInds[res];
VideoMode best = allVideoModes[index];
if (mode.norm(idealMode) < best.norm(idealMode))
{
bestModeInds[res] = i;
continue;
}
if (mode.norm(idealMode) == best.norm(idealMode))
{
// prefer higher FPS and "better" pixel formats
if (mode.FPS > best.FPS)
{
bestModeInds[res] = i;
continue;
}
bool better = CameraDevice::betterPixelFormat(mode.pixel_format, best.pixel_format);
if (mode.FPS >= best.FPS && better)
bestModeInds[res] = i;
}
}
}
QVector<VideoMode> newVideoModes;
for (auto it = bestModeInds.rbegin(); it != bestModeInds.rend(); ++it)
{
VideoMode mode = allVideoModes[it->second];
if (newVideoModes.empty())
{
newVideoModes.push_back(mode);
}
else
{
int size = getModeSize(mode);
auto result = std::find_if(newVideoModes.cbegin(), newVideoModes.cend(),
[size](VideoMode mode) { return getModeSize(mode) == size; });
if (result == newVideoModes.end())
newVideoModes.push_back(mode);
}
}
allVideoModes = newVideoModes;
}
