本文整理汇总了C++中VideoMode::norm方法的典型用法代码示例。如果您正苦于以下问题：C++ VideoMode::norm方法的具体用法？C++ VideoMode::norm怎么用？C++ VideoMode::norm使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VideoMode的用法示例。
在下文中一共展示了VideoMode::norm方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: updateVideoModes
void AVForm::updateVideoModes(int curIndex)
{
if (curIndex<0 || curIndex>=videoDeviceList.size())
{
qWarning() << "Invalid index";
return;
}
QString devName = videoDeviceList[curIndex].first;
QVector<VideoMode> allVideoModes = CameraDevice::getVideoModes(devName);
std::sort(allVideoModes.begin(), allVideoModes.end(),
[](const VideoMode& a, const VideoMode& b)
{return a.width!=b.width ? a.width>b.width :
a.height!=b.height ? a.height>b.height :
a.FPS>b.FPS;});
bool previouslyBlocked = bodyUI->videoModescomboBox->blockSignals(true);
bodyUI->videoModescomboBox->clear();
// Identify the best resolutions available for the supposed XXXXp resolutions.
std::map<int, VideoMode> idealModes;
idealModes[120] = {160,120,0,0};
idealModes[240] = {460,240,0,0};
idealModes[360] = {640,360,0,0};
idealModes[480] = {854,480,0,0};
idealModes[720] = {1280,720,0,0};
idealModes[1080] = {1920,1080,0,0};
std::map<int, int> bestModeInds;
qDebug("available Modes:");
for (int i=0; i<allVideoModes.size(); ++i)
{
VideoMode mode = allVideoModes[i];
qDebug("width: %d, height: %d, FPS: %f, pixel format: %s", mode.width, mode.height, mode.FPS, CameraDevice::getPixelFormatString(mode.pixel_format).toStdString().c_str());
// 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 ind = bestModeInds[res];
if (mode.norm(idealMode) < allVideoModes[ind].norm(idealMode))
{
bestModeInds[res] = i;
}
else if (mode.norm(idealMode) == allVideoModes[ind].norm(idealMode))
{
// prefer higher FPS and "better" pixel formats
if (mode.FPS > allVideoModes[ind].FPS)
{
bestModeInds[res] = i;
}
else if (mode.FPS == allVideoModes[ind].FPS &&
CameraDevice::betterPixelFormat(mode.pixel_format, allVideoModes[ind].pixel_format))
{
bestModeInds[res] = i;
}
}
}
}
qDebug("selected Modes:");
int prefResIndex = -1;
QSize prefRes = Settings::getInstance().getCamVideoRes();
unsigned short prefFPS = Settings::getInstance().getCamVideoFPS();
// Iterate backwards to show higest resolution first.
videoModes.clear();
for(auto iter = bestModeInds.rbegin(); iter != bestModeInds.rend(); ++iter)
{
int i = iter->second;
VideoMode mode = allVideoModes[i];
if (videoModes.contains(mode))
continue;
videoModes.append(mode);
if (mode.width==prefRes.width() && mode.height==prefRes.height() && mode.FPS == prefFPS && prefResIndex==-1)
prefResIndex = videoModes.size() - 1;
QString str;
qDebug("width: %d, height: %d, FPS: %f, pixel format: %s\n", mode.width, mode.height, mode.FPS, CameraDevice::getPixelFormatString(mode.pixel_format).toStdString().c_str());
if (mode.height && mode.width)
str += tr("%1p").arg(iter->first);
else
str += tr("Default resolution");
bodyUI->videoModescomboBox->addItem(str);
}
if (videoModes.isEmpty())
bodyUI->videoModescomboBox->addItem(tr("Default resolution"));
bodyUI->videoModescomboBox->blockSignals(previouslyBlocked);
if (prefResIndex != -1)
//.........这里部分代码省略.........
示例2: selectBestModes
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;
}