一.SDK工具的准备

请参考
如何脱离petalinux环境直接编译vcu-gst-app

1.配置Qt sdk

petalinux-config -c rootfs

设置Petalinux Package Groups -> packagegroup-petalinux-qt -> populate_sdk_qt5
退出保存
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2.生成并安装sdk

petalinux-build --sdk
petalinux-package --sysroot

build sdk这步根据电脑配置，可能需要半小时到一小时

二.安装Qt

1.查看petalinux对应的Qt版本号

根据结果可以看出版本为5.13.2

xlx@u16:/opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots$ find -name libQt*
./aarch64-xilinx-linux/usr/lib/libQt5WaylandClient.prl
./aarch64-xilinx-linux/usr/lib/libQt53DQuickExtras.so.5
./aarch64-xilinx-linux/usr/lib/libQt5Xml.so
./aarch64-xilinx-linux/usr/lib/libQt5PublishSubscribe.so
./aarch64-xilinx-linux/usr/lib/libQt5DesignerComponents.so.5.13
./aarch64-xilinx-linux/usr/lib/libQt5Widgets.so
./aarch64-xilinx-linux/usr/lib/libQt5EglFSDeviceIntegration.so.5
./aarch64-xilinx-linux/usr/lib/libQt5QmlDevTools.prl
./aarch64-xilinx-linux/usr/lib/libQt53DCore.so.5
./aarch64-xilinx-linux/usr/lib/libQt5Qml.so.5.13
./aarch64-xilinx-linux/usr/lib/libQt5SerialPort.so.5.13.2
./aarch64-xilinx-linux/usr/lib/libQt5SerialPort.prl
........
........
........

2.从Qt官网下载对应的版本

https://download.qt.io/archive/qt/5.13/5.13.2/qt-opensource-linux-x64-5.13.2.run

在安装的时候需要注册一个账号
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三.配置Qt Creator

Tools -> Options

1.手动添加Compilers

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2.手动添加Qt Versions

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3.手动增加Kits

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四、编译工程

1.源代码

xlx@u16:/opt/work/p202/vcu-qt/vcu_qt$ tree
.
├── font
│   └── luxisr.ttf
├── images
│   ├── backFolder.png
│   ├── close.png
│   ├── downArrow.png
│   ├── dropdown.png
│   ├── error.png
│   ├── folder.png
│   ├── fullScreen.png
│   ├── pause.png
│   ├── play_arrow.png
│   ├── sampleImg.png
│   ├── textFile.png
│   ├── upArrow.png
│   ├── xilinxLogo.png
│   └── zynqLogo.png
├── include
│   ├── CPUStat.h
│   ├── dirop.h
│   ├── maincontroller.h
│   └── video_cfg.h
├── qml
│   ├── AudioSettingsTab.qml
│   ├── CodecDropDown.qml
│   ├── ConfigProperty.qml
│   ├── ControlVu.qml
│   ├── EncDecPanel.qml
│   ├── EncParamTab.qml
│   ├── ErrorMessage.qml
│   ├── FileListVu.qml
│   ├── FileTab.qml
│   ├── InputSettingsPopup.qml
│   ├── KeypadPopup.qml
│   ├── main.qml
│   ├── NumberKeyPad.qml
│   ├── NumSrcVu.qml
│   ├── OptionsScrollVu.qml
│   ├── OutputDropDown.qml
│   ├── PresetProperties.qml
│   ├── QuadrantView.qml
│   ├── StatusView.qml
│   ├── StreaminPopup.qml
│   └── StreamOutTab.qml
├── qml.qrc
├── README.md
├── src
│   ├── CPUStat.cpp
│   ├── dirop.cpp
│   ├── maincontroller.cpp
│   ├── main.cpp
│   └── video_cfg.cpp
├── vcu_qt.pro
└── vcu_qt.pro.user

5 directories, 49 files

2.修改搜索路径

在Qt Creator中打开vcu_qt.pro
根据自己的sdk安装目录和vcu-gst-app的目录，修改对应的搜索路径

INCLUDEPATH += \
        include \
        /opt/work/p202/vcu-gst-app/lib/vcu_gst_lib/include \
        /opt/work/p202/vcu-gst-app/lib/vcu_apm_lib/include \
        /opt/work/p202/vcu-gst-app/lib/vcu_video_lib/include \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/include/gstreamer-1.0 \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/include/gstreamer-1.0/gst \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/include/glib-2.0 \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/lib/glib-2.0/include \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/lib/gstreamer-1.0/include \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/lib/gstreamer-1.0/include/gst \
        /opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/include


QMAKE_LIBDIR_FLAGS += \
        -L/opt/work/p202/vcu-gst-app/ \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_video_lib/Release \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_video_lib/Debug \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_gst_lib/Release \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_gst_lib/Debug \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_apm_lib/Release \
        -L/opt/work/p202/vcu-gst-app/lib/vcu_apm_lib/Debug \
        -L/opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/lib \
        -L/opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/lib \
        -L/opt/work/p202/xilinx-vcu-zcu106-v2020.2-final/images/linux/sdk/sysroots/aarch64-xilinx-linux/usr/lib/gstreamer-1.0

3.编译输出

编译后输出文件为…/build-vcu_qt-xilinx_c-Debug/vcu_qt，复制到开发板运行即可

xlx@u16:/opt/work/p202/vcu-qt/build-vcu_qt-xilinx_c-Debug$ tree
.
├── Makefile
├── moc
│   ├── moc_dirop.cpp
│   ├── moc_maincontroller.cpp
│   └── moc_predefs.h
├── obj
│   ├── CPUStat.o
│   ├── dirop.o
│   ├── maincontroller.o
│   ├── main.o
│   ├── moc_dirop.o
│   ├── moc_maincontroller.o
│   ├── qrc_qml.o
│   └── video_cfg.o
├── qrc_qml.cpp
└── vcu_qt

2 directories, 14 files

开发板上根据实际情况，可能需要设置以下环境变量

vi /etc/profile 增加

export QTDIR=/usr/local/qt/  
export PATH=$QTDIR/lib:$PATH  
export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
export QT_PLUGIN_PATH=/usr/local/qt/plugins