• Yaowu Xu's avatar
    changed find_near_mvs search to include a mb from last frame · 643238a3
    Yaowu Xu authored
    This is an experiment to include a mv contribution from last frame to
    nearest and near mv definition. Initial test showed some small though
    consistent gain.
    
    latest patch slightly better result ~.13%-~.18%.
    
    TODO: the entropy used to encode the mode choice, i.e. the mv counts
    based conditional distribution of modes should be re-collected to
    reflect this change, it is expected that there is some further gain
    from that.
    
    Change-Id: Ief1e284a36d8aa56b49ae5b360c91419ec494fa4
    643238a3
portingqmlapp.qdoc 3.91 KiB
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/*!
\page portingqmlapp.html
\title Porting QML Applications to Qt 5 Example
\brief Provides step-by-step instructions to port a QML application to Qt 5.
The new version of Qt Quick in Qt 5 brings in some changes to the way QML
applications are developed. For the complete list of changes that affect
existing QML applications, refer to \l{Porting QML Applications to Qt 5}.
This topic will walk through the porting process to make the \c{flickr} Qt 4
QML demo work on Qt 5. If you have the SDK based on Qt 4.8 installed, you can
find this demo application under
\c{<install_dir_root>/Examples/4.x/declarative/demos/}.
Follow these step-by-step instructions to port the \e{flickr} Qt 4 QML
application work to Qt 5:
\list 1
 \li Open the \e{flickr} project using Qt Creator.
 \li Edit all the \c{.qml} files and replace the \c{import QtQuick 1.0} statements
     with \c{import QtQuick 2.0}.
 \li Add the additional \c{import QtQuick.XmlListModel 2.0} statement to
     \c{qml/common/RssModel.qml}.
     \note \l{Qt Quick XmlListModel QML Types}{XmlListModel} is part of a
     submodule under \l{QtQuick} and it must be imported explicitly in order
     to use it.
 \li Make the following changes to
     \c{qmlapplicationviewer/qmlapplicationviewer.h}:
  \list
   \li Replace the \c{#include <QtDeclarative/QDeclarativeView>} with
       \c{#include <QQuickView>}.
   \li Replace \c{QDeclarativeView} with \c{QQuickView} in the class
       declaration for \c{QmlApplicationViewer}.
   \li Replace the parameter for \c{QmlApplicationViewer} constructor from
       \c{QWidget} to \c{QWindow}.
  \endlist
 \li Make the following changes to
     \c{qmlapplicationviewer/qmlapplicationviewer.cpp}:
  \list
   \li Replace all the \c{QtCore} and \c{QtDeclarative} include statements with
       these:
    \code
      #include <QCoreApplication>
71727374757677787980818283848586878889909192939495
#include <QDir> #include <QFileInfo> #include <QQmlComponent> #include <QQmlEngine> #include <QQmlContext> #include <QDebug> \endcode \li Replace all instances of \c{QWidget} with \c{QWindow}, and \c{QDeclarativeView} with \c{QQuickView}. \li Remove the code between \c{#if defined(Q_OS_SYMBIAN)} and \c{#endif} macros as Symbian platform is not supported in Qt 5. \li Remove the code between \c{#if QT_VERSION < 0x040702} and \c{#else}, and \c{#endif // QT_VERSION < 0x040702} macros towards the end. \endlist \li Save changes to the project and run the application. \endlist Once you see the application running, check whether it behaves as expected. Here is a snapshot of the application running on Ubuntu v12.04: \image flickr_application.png \section1 Related Topics \l{Porting QML Applications to Qt 5} */