├── MyThread
    ├── Readme.txt
    ├── images
    │   ├── LOGO_BX.png
    │   ├── OIP-C.jpg
    │   ├── head.jpg
    │   └── yan.png
    ├── main.cpp
    ├── mainwindow.cpp
    ├── mainwindow.h
    ├── mainwindow.ui
    ├── mythread.cpp
    ├── mythread.h
    ├── mythread.pro
    ├── mythread.pro.user
    └── res.qrc
├── QT_V4L2_YUYV
    ├── Readme.txt
    ├── main.cpp
    ├── mainwindow.cpp
    ├── mainwindow.h
    ├── video_show.cpp
    ├── video_show.h
    ├── ythread.pro
    ├── ythread.pro.user
    ├── yuyv_qthread.cpp
    └── yuyv_qthread.h
├── Qt_Pic_Show
    ├── Pic_Show_Ctrl.pro
    ├── Pic_Show_Ctrl.pro.user
    ├── Readme.txt
    ├── main.cpp
    ├── mainwindow.cpp
    ├── mainwindow.h
    └── mainwindow.ui
├── Qt_V4l2
    ├── QT_V4L2.pro
    ├── QT_V4L2.pro.user
    ├── main.cpp
    ├── mainwindow.cpp
    ├── mainwindow.h
    └── v4l2用户手册API.pdf
├── README.md
├── V4l2_QThread
    ├── Readme.txt
    ├── V4l2_Thread.pro
    ├── main.cpp
    ├── mainwindow.cpp
    ├── mainwindow.h
    ├── v4l2_thread.cpp
    ├── v4l2_thread.h
    ├── videoshow.cpp
    └── videoshow.h
├── jpeg_show_lcd.c
└── v4l2_cap_jpeg.c


/MyThread/Readme.txt:
--------------------------------------------------------------------------------
1 | 使用 QThread 的一个demo
2 | 学习使用多线程，开启线程循环显示图片在label上
3 | 


--------------------------------------------------------------------------------
/MyThread/images/LOGO_BX.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Huge-Hammer/Linux-C-Coding/983d5ff48fa49bf9cbc916c7bcad5baad832c897/MyThread/images/LOGO_BX.png


--------------------------------------------------------------------------------
/MyThread/images/OIP-C.jpg:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Huge-Hammer/Linux-C-Coding/983d5ff48fa49bf9cbc916c7bcad5baad832c897/MyThread/images/OIP-C.jpg


--------------------------------------------------------------------------------
/MyThread/images/head.jpg:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Huge-Hammer/Linux-C-Coding/983d5ff48fa49bf9cbc916c7bcad5baad832c897/MyThread/images/head.jpg


--------------------------------------------------------------------------------
/MyThread/images/yan.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Huge-Hammer/Linux-C-Coding/983d5ff48fa49bf9cbc916c7bcad5baad832c897/MyThread/images/yan.png


--------------------------------------------------------------------------------
/MyThread/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     QApplication a(argc, argv);
 7 |     MainWindow w;
 8 |     w.show();
 9 | 
10 |     return a.exec();
11 | }
12 | 


--------------------------------------------------------------------------------
/MyThread/mainwindow.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include "ui_mainwindow.h"
 3 | 
 4 | MainWindow::MainWindow(QWidget *parent) :
 5 |     QMainWindow(parent),
 6 |     ui(new Ui::MainWindow)
 7 | {
 8 |     ui->setupUi(this);
 9 |     //实例化线程
10 |     t = new mythread(this);
11 |     t->getLabel(ui->label);
12 | }
13 | 
14 | //关闭窗口时结束线程
15 | MainWindow::~MainWindow()
16 | {
17 |     qDebug("thread exit");
18 |     t->terminate();
19 |     delete ui;
20 | }
21 | 
22 | void MainWindow::on_openbt_clicked()
23 | {
24 |     t->start();
25 | }
26 | 
27 | void MainWindow::on_closebt_clicked()
28 | {
29 |     t->terminate();
30 | }
31 | 


--------------------------------------------------------------------------------
/MyThread/mainwindow.h:
--------------------------------------------------------------------------------
 1 | #ifndef MAINWINDOW_H
 2 | #define MAINWINDOW_H
 3 | 
 4 | #include <QMainWindow>
 5 | #include "mythread.h"
 6 | 
 7 | namespace Ui {
 8 | class MainWindow;
 9 | }
10 | 
11 | class MainWindow : public QMainWindow
12 | {
13 |     Q_OBJECT
14 | 
15 | public:
16 |     explicit MainWindow(QWidget *parent = 0);
17 |     ~MainWindow();
18 | 
19 | private slots:
20 |     void on_openbt_clicked();
21 | 
22 |     void on_closebt_clicked();
23 | 
24 | private:
25 |     Ui::MainWindow *ui;
26 |     mythread *t;
27 | };
28 | 
29 | #endif // MAINWINDOW_H
30 | 


--------------------------------------------------------------------------------
/MyThread/mainwindow.ui:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <ui version="4.0">
 3 |  <class>MainWindow</class>
 4 |  <widget class="QMainWindow" name="MainWindow">
 5 |   <property name="geometry">
 6 |    <rect>
 7 |     <x>0</x>
 8 |     <y>0</y>
 9 |     <width>800</width>
10 |     <height>480</height>
11 |    </rect>
12 |   </property>
13 |   <property name="windowTitle">
14 |    <string>MainWindow</string>
15 |   </property>
16 |   <widget class="QWidget" name="centralWidget">
17 |    <widget class="QPushButton" name="openbt">
18 |     <property name="geometry">
19 |      <rect>
20 |       <x>670</x>
21 |       <y>30</y>
22 |       <width>111</width>
23 |       <height>71</height>
24 |      </rect>
25 |     </property>
26 |     <property name="text">
27 |      <string>开启线程</string>
28 |     </property>
29 |    </widget>
30 |    <widget class="QPushButton" name="closebt">
31 |     <property name="geometry">
32 |      <rect>
33 |       <x>670</x>
34 |       <y>240</y>
35 |       <width>111</width>
36 |       <height>71</height>
37 |      </rect>
38 |     </property>
39 |     <property name="text">
40 |      <string>停止线程</string>
41 |     </property>
42 |    </widget>
43 |    <widget class="QLabel" name="label">
44 |     <property name="geometry">
45 |      <rect>
46 |       <x>30</x>
47 |       <y>30</y>
48 |       <width>621</width>
49 |       <height>371</height>
50 |      </rect>
51 |     </property>
52 |     <property name="text">
53 |      <string/>
54 |     </property>
55 |    </widget>
56 |   </widget>
57 |   <widget class="QMenuBar" name="menuBar">
58 |    <property name="geometry">
59 |     <rect>
60 |      <x>0</x>
61 |      <y>0</y>
62 |      <width>800</width>
63 |      <height>28</height>
64 |     </rect>
65 |    </property>
66 |   </widget>
67 |   <widget class="QToolBar" name="mainToolBar">
68 |    <attribute name="toolBarArea">
69 |     <enum>TopToolBarArea</enum>
70 |    </attribute>
71 |    <attribute name="toolBarBreak">
72 |     <bool>false</bool>
73 |    </attribute>
74 |   </widget>
75 |   <widget class="QStatusBar" name="statusBar"/>
76 |  </widget>
77 |  <layoutdefault spacing="6" margin="11"/>
78 |  <resources/>
79 |  <connections/>
80 | </ui>
81 | 


--------------------------------------------------------------------------------
/MyThread/mythread.cpp:
--------------------------------------------------------------------------------
 1 | #include "mythread.h"
 2 | 
 3 | mythread::mythread(QWidget *parent) : QThread(parent)
 4 | {
 5 |     piclist.append("://images/head.jpg");
 6 |     piclist.append("://images/LOGO_BX.png");
 7 |     piclist.append("://images/OIP-C.jpg");
 8 |     piclist.append("://images/yan.png");
 9 | }
10 | 
11 | void mythread::run()
12 | {
13 |     int n=0;
14 |     while (1) {
15 |         QPixmap mymap(piclist.at(n));
16 |         mymap.scaled(mylb->width(),mylb->height());
17 |         mylb->setScaledContents(true);
18 |         mylb->setPixmap(mymap);
19 | 
20 |         if(n<3)
21 |              n++;
22 |         else
23 |              n=0;
24 | 
25 |         QThread::sleep(1);
26 |     }
27 | }
28 | 
29 | void mythread::getLabel(QLabel *lb)
30 | {
31 |     mylb=lb;
32 | }
33 | 


--------------------------------------------------------------------------------
/MyThread/mythread.h:
--------------------------------------------------------------------------------
 1 | #ifndef MYTHREAD_H
 2 | #define MYTHREAD_H
 3 | 
 4 | #include <QThread>
 5 | #include <QWidget>
 6 | #include <QLabel>
 7 | #include <QDebug>
 8 | 
 9 | class mythread : public QThread
10 | {
11 |     Q_OBJECT
12 | public:
13 |     explicit mythread(QWidget *parent = nullptr);
14 |     ~mythread(){}
15 | 
16 |     //重写run方法
17 |     void run();
18 | 
19 |     //定义一个公有方法接收传递过来的参数--》标签
20 |     void getLabel(QLabel *lb);
21 | 
22 | private:
23 |     QLabel *mylb;
24 |     QStringList piclist;
25 | };
26 | #endif // MYTHREAD_H
27 | 


--------------------------------------------------------------------------------
/MyThread/mythread.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2022-07-13T08:43:20
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = mythread
12 | TEMPLATE = app
13 | 
14 | # The following define makes your compiler emit warnings if you use
15 | # any feature of Qt which has been marked as deprecated (the exact warnings
16 | # depend on your compiler). Please consult the documentation of the
17 | # deprecated API in order to know how to port your code away from it.
18 | DEFINES += QT_DEPRECATED_WARNINGS
19 | 
20 | # You can also make your code fail to compile if you use deprecated APIs.
21 | # In order to do so, uncomment the following line.
22 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
24 | 
25 | 
26 | SOURCES += \
27 |         main.cpp \
28 |         mainwindow.cpp \
29 |     mythread.cpp
30 | 
31 | HEADERS += \
32 |         mainwindow.h \
33 |     mythread.h
34 | 
35 | FORMS += \
36 |         mainwindow.ui
37 | 
38 | RESOURCES += \
39 |     res.qrc
40 | 


--------------------------------------------------------------------------------
/MyThread/mythread.pro.user:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <!DOCTYPE QtCreatorProject>
  3 | <!-- Written by QtCreator 4.6.2, 2022-08-10T14:51:51. -->
  4 | <qtcreator>
  5 |  <data>
  6 |   <variable>EnvironmentId</variable>
  7 |   <value type="QByteArray">{52c40cc8-af0f-4c18-a797-ccd6e3c66a6b}</value>
  8 |  </data>
  9 |  <data>
 10 |   <variable>ProjectExplorer.Project.ActiveTarget</variable>
 11 |   <value type="int">0</value>
 12 |  </data>
 13 |  <data>
 14 |   <variable>ProjectExplorer.Project.EditorSettings</variable>
 15 |   <valuemap type="QVariantMap">
 16 |    <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
 17 |    <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
 18 |    <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
 19 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
 20 |     <value type="QString" key="language">Cpp</value>
 21 |     <valuemap type="QVariantMap" key="value">
 22 |      <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
 23 |     </valuemap>
 24 |    </valuemap>
 25 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
 26 |     <value type="QString" key="language">QmlJS</value>
 27 |     <valuemap type="QVariantMap" key="value">
 28 |      <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
 29 |     </valuemap>
 30 |    </valuemap>
 31 |    <value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
 32 |    <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
 33 |    <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
 34 |    <value type="int" key="EditorConfiguration.IndentSize">4</value>
 35 |    <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
 36 |    <value type="int" key="EditorConfiguration.MarginColumn">80</value>
 37 |    <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
 38 |    <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
 39 |    <value type="int" key="EditorConfiguration.PaddingMode">1</value>
 40 |    <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
 41 |    <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
 42 |    <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
 43 |    <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
 44 |    <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
 45 |    <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
 46 |    <value type="int" key="EditorConfiguration.TabSize">8</value>
 47 |    <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
 48 |    <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
 49 |    <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
 50 |    <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
 51 |    <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
 52 |    <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
 53 |   </valuemap>
 54 |  </data>
 55 |  <data>
 56 |   <variable>ProjectExplorer.Project.PluginSettings</variable>
 57 |   <valuemap type="QVariantMap"/>
 58 |  </data>
 59 |  <data>
 60 |   <variable>ProjectExplorer.Project.Target.0</variable>
 61 |   <valuemap type="QVariantMap">
 62 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 63 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 64 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">qt.596.gcc_64_kit</value>
 65 |    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
 66 |    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
 67 |    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
 68 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
 69 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-mythread-Desktop_Qt_5_9_6_GCC_64bit-Debug</value>
 70 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
 71 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
 72 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 73 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
 74 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 75 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
 76 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
 77 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
 78 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
 79 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
 80 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
 81 |      </valuemap>
 82 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
 83 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 84 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
 85 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 86 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
 87 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
 88 |        <value type="QString">-w</value>
 89 |        <value type="QString">-r</value>
 90 |       </valuelist>
 91 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
 92 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
 93 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
 94 |      </valuemap>
 95 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
 96 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
 97 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 98 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
 99 |     </valuemap>
100 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
101 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
102 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
103 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
104 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
105 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
106 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
107 |        <value type="QString">-w</value>
108 |        <value type="QString">-r</value>
109 |       </valuelist>
110 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
111 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
112 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
113 |      </valuemap>
114 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
115 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
116 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
117 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
118 |     </valuemap>
119 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
120 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
121 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
122 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Debug</value>
123 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
124 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
125 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
126 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
127 |    </valuemap>
128 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
129 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-mythread-Desktop_Qt_5_9_6_GCC_64bit-Release</value>
130 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
131 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
132 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
133 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
134 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
135 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
136 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">false</value>
137 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
138 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
139 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
140 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
141 |      </valuemap>
142 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
143 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
144 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
145 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
146 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
147 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
148 |        <value type="QString">-w</value>
149 |        <value type="QString">-r</value>
150 |       </valuelist>
151 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
152 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
153 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
154 |      </valuemap>
155 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
156 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
157 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
158 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
159 |     </valuemap>
160 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
161 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
162 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
163 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
164 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
165 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
166 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
167 |        <value type="QString">-w</value>
168 |        <value type="QString">-r</value>
169 |       </valuelist>
170 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
171 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
172 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
173 |      </valuemap>
174 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
175 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
176 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
177 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
178 |     </valuemap>
179 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
180 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
181 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
182 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Release</value>
183 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
184 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
185 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
186 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
187 |    </valuemap>
188 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
189 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-mythread-Desktop_Qt_5_9_6_GCC_64bit-Profile</value>
190 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
191 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
192 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
193 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
194 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
195 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
196 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
197 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
198 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
199 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">true</value>
200 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
201 |      </valuemap>
202 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
203 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
204 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
205 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
206 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
207 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
208 |        <value type="QString">-w</value>
209 |        <value type="QString">-r</value>
210 |       </valuelist>
211 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
212 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
213 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
214 |      </valuemap>
215 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
216 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
217 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
218 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
219 |     </valuemap>
220 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
221 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
222 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
223 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
224 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
225 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
226 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
227 |        <value type="QString">-w</value>
228 |        <value type="QString">-r</value>
229 |       </valuelist>
230 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
231 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
232 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
233 |      </valuemap>
234 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
235 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
236 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
237 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
238 |     </valuemap>
239 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
240 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
241 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
242 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Profile</value>
243 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
244 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
245 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
246 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
247 |    </valuemap>
248 |    <value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
249 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
250 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
251 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
252 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
253 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
254 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
255 |     </valuemap>
256 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
257 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署设置</value>
258 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
259 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
260 |    </valuemap>
261 |    <value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
262 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
263 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
264 |     <value type="bool" key="Analyzer.QmlProfiler.AggregateTraces">false</value>
265 |     <value type="bool" key="Analyzer.QmlProfiler.FlushEnabled">false</value>
266 |     <value type="uint" key="Analyzer.QmlProfiler.FlushInterval">1000</value>
267 |     <value type="QString" key="Analyzer.QmlProfiler.LastTraceFile"></value>
268 |     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
269 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.AddedSuppressionFiles"/>
270 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectBusEvents">false</value>
271 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectSystime">false</value>
272 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableBranchSim">false</value>
273 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableCacheSim">false</value>
274 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
275 |     <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
276 |     <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
277 |     <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
278 |     <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
279 |     <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
280 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
281 |     <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
282 |     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
283 |     <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
284 |     <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
285 |     <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
286 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
287 |      <value type="int">0</value>
288 |      <value type="int">1</value>
289 |      <value type="int">2</value>
290 |      <value type="int">3</value>
291 |      <value type="int">4</value>
292 |      <value type="int">5</value>
293 |      <value type="int">6</value>
294 |      <value type="int">7</value>
295 |      <value type="int">8</value>
296 |      <value type="int">9</value>
297 |      <value type="int">10</value>
298 |      <value type="int">11</value>
299 |      <value type="int">12</value>
300 |      <value type="int">13</value>
301 |      <value type="int">14</value>
302 |     </valuelist>
303 |     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
304 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
305 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">mythread</value>
306 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
307 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/hammer/qt5/Qt_projs/mythread/mythread.pro</value>
308 |     <value type="bool" key="QmakeProjectManager.QmakeRunConfiguration.UseLibrarySearchPath">true</value>
309 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.CommandLineArguments"></value>
310 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">mythread.pro</value>
311 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseDyldImageSuffix">false</value>
312 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory"></value>
313 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default">/home/hammer/qt5/Qt_projs/build-mythread-Desktop_Qt_5_9_6_GCC_64bit-Debug</value>
314 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
315 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
316 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
317 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
318 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
319 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
320 |    </valuemap>
321 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
322 |   </valuemap>
323 |  </data>
324 |  <data>
325 |   <variable>ProjectExplorer.Project.TargetCount</variable>
326 |   <value type="int">1</value>
327 |  </data>
328 |  <data>
329 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
330 |   <value type="int">18</value>
331 |  </data>
332 |  <data>
333 |   <variable>Version</variable>
334 |   <value type="int">18</value>
335 |  </data>
336 | </qtcreator>
337 | 


--------------------------------------------------------------------------------
/MyThread/res.qrc:
--------------------------------------------------------------------------------
1 | <RCC>
2 |     <qresource prefix="/">
3 |         <file>images/head.jpg</file>
4 |         <file>images/LOGO_BX.png</file>
5 |         <file>images/OIP-C.jpg</file>
6 |         <file>images/yan.png</file>
7 |     </qresource>
8 | </RCC>
9 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/Readme.txt:
--------------------------------------------------------------------------------
1 | V4L2 编程 QT控件显示视频 格式采用YUYV格式
2 | YUYV格式不同于MJPEG格式，无法直接显示在QT的label控件或者paintEvent显示,需要转RGB格式用于显示
3 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     /* 输入校验 */
 7 |     if (2 != argc) {
 8 |         fprintf(stderr, "Usage: %s <video_dev>\n", argv[0]);
 9 |         exit(EXIT_FAILURE);
10 |     }
11 |     QApplication a(argc, argv);
12 |     MainWindow w;
13 |     w.show();
14 |     w.setWindowTitle("QT V4L2 Hammer");
15 | 
16 |     return a.exec();
17 | }
18 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/mainwindow.cpp:
--------------------------------------------------------------------------------
  1 | #include "mainwindow.h"
  2 | 
  3 | MainWindow::MainWindow(QWidget *parent)
  4 |     : QMainWindow(parent)
  5 | {
  6 |     /* 获取屏幕的分辨率，Qt官方建议使用这种方法获取屏幕分辨率，防上多屏设备导致对应不上 */
  7 |     QList <QScreen *> list_screen =  QGuiApplication::screens();
  8 | 
  9 |     /* 如果是ARM平台，直接设置大小为屏幕的大小 */
 10 | #if __arm__
 11 |     /* 重设大小 */
 12 |     this->resize(list_screen.at(0)->geometry().width(),
 13 |         list_screen.at(0)->geometry().height());
 14 | #else
 15 |     /* 否则则设置主窗体大小为800x480 */
 16 |     this->resize(800, 480);
 17 | #endif
 18 | 
 19 |     /* 控件实例化 */
 20 |     mainWidget  = new QWidget();
 21 |     rightWidget = new QWidget();
 22 | 
 23 |     hboxLayout  = new QHBoxLayout();
 24 |     vboxLayout = new QVBoxLayout();
 25 | 
 26 | 
 27 |     startBtn = new QPushButton("开始",this);
 28 |     capBtn   = new QPushButton("拍照",this);
 29 |     recBtn   = new QPushButton("录制",this);
 30 | 
 31 |     video = new videoshow();
 32 |     video->setFixedWidth(PIXWIDTH);
 33 |     video->setFixedHeight(PIXHEIGHT);
 34 | 
 35 |     /* 按钮属性 */
 36 |     recBtn->setMaximumHeight(40);
 37 |     recBtn->setMaximumWidth(100);
 38 |     startBtn->setMaximumHeight(40);
 39 |     startBtn->setMaximumWidth(100);
 40 |     capBtn->setMaximumHeight(40);
 41 |     capBtn->setMaximumWidth(100);
 42 |     capBtn->setEnabled(false);
 43 | 
 44 |     vboxLayout->addWidget(startBtn);
 45 |     vboxLayout->addWidget(capBtn);
 46 |     vboxLayout->addWidget(recBtn);
 47 | 
 48 |     rightWidget->setLayout(vboxLayout);
 49 | 
 50 |     hboxLayout->addWidget(video);
 51 |     hboxLayout->addWidget(rightWidget);
 52 | 
 53 |     mainWidget->setLayout(hboxLayout);
 54 |     this->setCentralWidget(mainWidget);
 55 | 
 56 |     /* 信号连接 */
 57 |     connect(startBtn,SIGNAL(clicked()),this,SLOT(onStart()));
 58 |     connect(capBtn,SIGNAL(clicked()),this,SLOT(onCap()));
 59 |     connect(recBtn,SIGNAL(clicked()),this,SLOT(onRec()));
 60 | 
 61 |     /* QThread inst */
 62 |     t = new YUYVQThread(video);
 63 | 
 64 |     dir = new QDir();
 65 |     if(!dir->exists("images")){
 66 |         dir->mkdir("images");
 67 |     }
 68 |     dir->setCurrent("images");
 69 | }
 70 | 
 71 | MainWindow::~MainWindow()
 72 | {
 73 | 
 74 | }
 75 | 
 76 | //窗口关闭，进程停止
 77 | void MainWindow::closeEvent(QCloseEvent *event)
 78 | {
 79 |     t->show_flag = false;
 80 |     t->wait();
 81 |     event->accept();
 82 |     qDebug("thread exit");
 83 | }
 84 | 
 85 | void MainWindow::onStart()
 86 | {
 87 |     if(t->show_flag == false){
 88 |         t->show_flag = true;
 89 |         t->start();
 90 |         capBtn->setEnabled(true);
 91 |         qDebug("start");
 92 |     }
 93 | }
 94 | 
 95 | void MainWindow::onCap()
 96 | {
 97 |     QDateTime ntime = QDateTime::currentDateTime();
 98 |     QString dts = ntime.toString("yyMMddHHmmss");
 99 |     if(!video->img.isNull()){
100 |         QString fileName = QCoreApplication::applicationDirPath() + "/images/" + dts + ".png";
101 |         qDebug()<<"正在保存"<<fileName<<"图片，请稍后..."<<endl;
102 |         video->img.save(fileName, "PNG", -1);
103 |         qDebug()<<"保存完成！ "<<endl;
104 |     }
105 | }
106 | 
107 | void MainWindow::onRec()
108 | {
109 |     qDebug("开始录制");
110 | }
111 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/mainwindow.h:
--------------------------------------------------------------------------------
 1 | #ifndef MAINWINDOW_H
 2 | #define MAINWINDOW_H
 3 | 
 4 | #include <QDebug>
 5 | #include <QWidget>
 6 | #include <QMainWindow>
 7 | #include <QVBoxLayout>
 8 | #include <QHBoxLayout>
 9 | #include <QPushButton>
10 | #include <QGuiApplication>
11 | #include <QScreen>
12 | #include <QCoreApplication>
13 | #include <QDir>
14 | #include <QDateTime>
15 | #include <QCloseEvent>
16 | 
17 | #include "video_show.h"
18 | #include "yuyv_qthread.h"
19 | 
20 | class MainWindow : public QMainWindow
21 | {
22 |     Q_OBJECT
23 | 
24 | public:
25 |     MainWindow(QWidget *parent = 0);
26 |     ~MainWindow();
27 | 
28 |     /* 主容器，Widget也可以当作一种容器 */
29 |     QWidget *mainWidget;
30 |     QWidget *rightWidget;
31 |     /* 界面水平区域布局 */
32 |     QHBoxLayout *hboxLayout;
33 |     /* 界面垂直区域布局 */
34 |     QVBoxLayout *vboxLayout;
35 |     videoshow   *video;
36 |     QPushButton *startBtn;
37 |     QPushButton *capBtn;
38 |     QPushButton *recBtn;
39 | 
40 |     YUYVQThread *t;
41 | 
42 |     /* 照片保存位置 */
43 |     QDir *dir;
44 | 
45 | private slots:
46 |     void onRec();
47 |     void onStart();
48 |     void onCap();
49 | 
50 |     //重写窗口关闭事件
51 | protected :
52 |     void closeEvent(QCloseEvent *event);
53 | };
54 | 
55 | #endif // MAINWINDOW_H
56 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/video_show.cpp:
--------------------------------------------------------------------------------
 1 | #include "video_show.h"
 2 | 
 3 | videoshow::videoshow(QWidget *parent)
 4 |     : QWidget(parent)
 5 | {
 6 |     setAutoFillBackground(true);
 7 | }
 8 | 
 9 | void videoshow::paintEvent(QPaintEvent *){
10 |     try{
11 |         QPainter painter(this);
12 | 
13 |         if(!img.isNull()){
14 |             painter.drawImage(QPointF(0,0),img);
15 |         }
16 | 
17 |     }catch(...){}
18 | }
19 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/video_show.h:
--------------------------------------------------------------------------------
 1 | #ifndef VIDEO_SHOW_H
 2 | #define VIDEO_SHOW_H
 3 | 
 4 | #include <QWidget>
 5 | #include <QPainter>
 6 | #include <QPointF>
 7 | 
 8 | class videoshow : public QWidget{
 9 |     Q_OBJECT
10 | 
11 | public:
12 |     explicit videoshow(QWidget *parent = 0);
13 | 
14 |     /* 显示的每帧图像 */
15 |     QImage img;
16 | 
17 |     /* 重写父类下的protected方法*/
18 | protected:
19 |     void paintEvent(QPaintEvent *);
20 | };
21 | 
22 | #endif // VIDEO_SHOW_H
23 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/ythread.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2022-07-14T09:46:34
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = ythread
12 | TEMPLATE = app
13 | 
14 | # The following define makes your compiler emit warnings if you use
15 | # any feature of Qt which has been marked as deprecated (the exact warnings
16 | # depend on your compiler). Please consult the documentation of the
17 | # deprecated API in order to know how to port your code away from it.
18 | DEFINES += QT_DEPRECATED_WARNINGS
19 | 
20 | # You can also make your code fail to compile if you use deprecated APIs.
21 | # In order to do so, uncomment the following line.
22 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
24 | 
25 | 
26 | SOURCES += \
27 |         main.cpp \
28 |         mainwindow.cpp \
29 |     yuyv_qthread.cpp \
30 |     video_show.cpp
31 | 
32 | HEADERS += \
33 |         mainwindow.h \
34 |     yuyv_qthread.h \
35 |     video_show.h
36 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/ythread.pro.user:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <!DOCTYPE QtCreatorProject>
  3 | <!-- Written by QtCreator 4.6.2, 2022-08-10T14:57:58. -->
  4 | <qtcreator>
  5 |  <data>
  6 |   <variable>EnvironmentId</variable>
  7 |   <value type="QByteArray">{52c40cc8-af0f-4c18-a797-ccd6e3c66a6b}</value>
  8 |  </data>
  9 |  <data>
 10 |   <variable>ProjectExplorer.Project.ActiveTarget</variable>
 11 |   <value type="int">0</value>
 12 |  </data>
 13 |  <data>
 14 |   <variable>ProjectExplorer.Project.EditorSettings</variable>
 15 |   <valuemap type="QVariantMap">
 16 |    <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
 17 |    <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
 18 |    <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
 19 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
 20 |     <value type="QString" key="language">Cpp</value>
 21 |     <valuemap type="QVariantMap" key="value">
 22 |      <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
 23 |     </valuemap>
 24 |    </valuemap>
 25 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
 26 |     <value type="QString" key="language">QmlJS</value>
 27 |     <valuemap type="QVariantMap" key="value">
 28 |      <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
 29 |     </valuemap>
 30 |    </valuemap>
 31 |    <value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
 32 |    <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
 33 |    <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
 34 |    <value type="int" key="EditorConfiguration.IndentSize">4</value>
 35 |    <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
 36 |    <value type="int" key="EditorConfiguration.MarginColumn">80</value>
 37 |    <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
 38 |    <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
 39 |    <value type="int" key="EditorConfiguration.PaddingMode">1</value>
 40 |    <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
 41 |    <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
 42 |    <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
 43 |    <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
 44 |    <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
 45 |    <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
 46 |    <value type="int" key="EditorConfiguration.TabSize">8</value>
 47 |    <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
 48 |    <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
 49 |    <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
 50 |    <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
 51 |    <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
 52 |    <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
 53 |   </valuemap>
 54 |  </data>
 55 |  <data>
 56 |   <variable>ProjectExplorer.Project.PluginSettings</variable>
 57 |   <valuemap type="QVariantMap"/>
 58 |  </data>
 59 |  <data>
 60 |   <variable>ProjectExplorer.Project.Target.0</variable>
 61 |   <valuemap type="QVariantMap">
 62 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 63 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 64 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">qt.596.gcc_64_kit</value>
 65 |    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
 66 |    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
 67 |    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
 68 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
 69 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-ythread-Desktop_Qt_5_9_6_GCC_64bit-Debug</value>
 70 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
 71 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
 72 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 73 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
 74 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 75 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
 76 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
 77 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
 78 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
 79 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
 80 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
 81 |      </valuemap>
 82 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
 83 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 84 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
 85 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 86 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
 87 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
 88 |        <value type="QString">-w</value>
 89 |        <value type="QString">-r</value>
 90 |       </valuelist>
 91 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
 92 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
 93 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
 94 |      </valuemap>
 95 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
 96 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
 97 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 98 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
 99 |     </valuemap>
100 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
101 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
102 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
103 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
104 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
105 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
106 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
107 |        <value type="QString">-w</value>
108 |        <value type="QString">-r</value>
109 |       </valuelist>
110 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
111 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
112 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
113 |      </valuemap>
114 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
115 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
116 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
117 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
118 |     </valuemap>
119 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
120 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
121 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
122 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Debug</value>
123 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
124 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
125 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
126 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
127 |    </valuemap>
128 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
129 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-ythread-Desktop_Qt_5_9_6_GCC_64bit-Release</value>
130 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
131 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
132 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
133 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
134 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
135 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
136 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">false</value>
137 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
138 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
139 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
140 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
141 |      </valuemap>
142 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
143 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
144 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
145 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
146 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
147 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
148 |        <value type="QString">-w</value>
149 |        <value type="QString">-r</value>
150 |       </valuelist>
151 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
152 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
153 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
154 |      </valuemap>
155 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
156 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
157 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
158 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
159 |     </valuemap>
160 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
161 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
162 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
163 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
164 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
165 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
166 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
167 |        <value type="QString">-w</value>
168 |        <value type="QString">-r</value>
169 |       </valuelist>
170 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
171 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
172 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
173 |      </valuemap>
174 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
175 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
176 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
177 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
178 |     </valuemap>
179 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
180 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
181 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
182 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Release</value>
183 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
184 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
185 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
186 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
187 |    </valuemap>
188 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
189 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/qt5/Qt_projs/build-ythread-Desktop_Qt_5_9_6_GCC_64bit-Profile</value>
190 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
191 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
192 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
193 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
194 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
195 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
196 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
197 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
198 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
199 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">true</value>
200 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
201 |      </valuemap>
202 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
203 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
204 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
205 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
206 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
207 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
208 |        <value type="QString">-w</value>
209 |        <value type="QString">-r</value>
210 |       </valuelist>
211 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
212 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
213 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
214 |      </valuemap>
215 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
216 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
217 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
218 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
219 |     </valuemap>
220 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
221 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
222 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
223 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
224 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
225 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
226 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
227 |        <value type="QString">-w</value>
228 |        <value type="QString">-r</value>
229 |       </valuelist>
230 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
231 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
232 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
233 |      </valuemap>
234 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
235 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
236 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
237 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
238 |     </valuemap>
239 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
240 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
241 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
242 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Profile</value>
243 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
244 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
245 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
246 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
247 |    </valuemap>
248 |    <value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
249 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
250 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
251 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
252 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
253 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
254 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
255 |     </valuemap>
256 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
257 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署设置</value>
258 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
259 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
260 |    </valuemap>
261 |    <value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
262 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
263 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
264 |     <value type="bool" key="Analyzer.QmlProfiler.AggregateTraces">false</value>
265 |     <value type="bool" key="Analyzer.QmlProfiler.FlushEnabled">false</value>
266 |     <value type="uint" key="Analyzer.QmlProfiler.FlushInterval">1000</value>
267 |     <value type="QString" key="Analyzer.QmlProfiler.LastTraceFile"></value>
268 |     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
269 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.AddedSuppressionFiles"/>
270 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectBusEvents">false</value>
271 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectSystime">false</value>
272 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableBranchSim">false</value>
273 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableCacheSim">false</value>
274 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
275 |     <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
276 |     <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
277 |     <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
278 |     <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
279 |     <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
280 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
281 |     <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
282 |     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
283 |     <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
284 |     <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
285 |     <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
286 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
287 |      <value type="int">0</value>
288 |      <value type="int">1</value>
289 |      <value type="int">2</value>
290 |      <value type="int">3</value>
291 |      <value type="int">4</value>
292 |      <value type="int">5</value>
293 |      <value type="int">6</value>
294 |      <value type="int">7</value>
295 |      <value type="int">8</value>
296 |      <value type="int">9</value>
297 |      <value type="int">10</value>
298 |      <value type="int">11</value>
299 |      <value type="int">12</value>
300 |      <value type="int">13</value>
301 |      <value type="int">14</value>
302 |     </valuelist>
303 |     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
304 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
305 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">ythread</value>
306 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
307 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/hammer/qt5/Qt_projs/ythread/ythread.pro</value>
308 |     <value type="bool" key="QmakeProjectManager.QmakeRunConfiguration.UseLibrarySearchPath">true</value>
309 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.CommandLineArguments">/dev/video0</value>
310 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">ythread.pro</value>
311 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseDyldImageSuffix">false</value>
312 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory"></value>
313 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default">/home/hammer/qt5/Qt_projs/build-ythread-Desktop_Qt_5_9_6_GCC_64bit-Debug</value>
314 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
315 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
316 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
317 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
318 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
319 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
320 |    </valuemap>
321 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
322 |   </valuemap>
323 |  </data>
324 |  <data>
325 |   <variable>ProjectExplorer.Project.TargetCount</variable>
326 |   <value type="int">1</value>
327 |  </data>
328 |  <data>
329 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
330 |   <value type="int">18</value>
331 |  </data>
332 |  <data>
333 |   <variable>Version</variable>
334 |   <value type="int">18</value>
335 |  </data>
336 | </qtcreator>
337 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/yuyv_qthread.cpp:
--------------------------------------------------------------------------------
  1 | #include "yuyv_qthread.h"
  2 | 
  3 | YUYVQThread::YUYVQThread(QWidget *parent):QThread(parent){
  4 | 
  5 |     this->parent = (videoshow*)parent;
  6 |     show_flag = false;
  7 |     v4l2_fd = -1;
  8 |     /* 获取输入进行初始化 */
  9 |     QStringList device_parm = QCoreApplication::arguments();
 10 |     QString str = device_parm[1];
 11 |     dev_name = str.toStdString();
 12 | }
 13 | 
 14 | void YUYVQThread::run(){
 15 |     /* 打开设备 */
 16 |     v4l2_fd = -1;
 17 |     v4l2_fd = open(dev_name.c_str(), O_RDWR | O_NONBLOCK, 0);
 18 |     if(v4l2_fd < 0){
 19 |         qDebug("open camera failed\n");
 20 |         return;
 21 |     }
 22 |     qDebug("open camera success\n");
 23 |     qDebug("------------------------------------\n");
 24 | 
 25 |     /* 获取摄像头能力 */
 26 |     ioctl(v4l2_fd, VIDIOC_QUERYCAP, &cap);
 27 |     /* 判断是否是视频采集设备 */
 28 |     if (!(V4L2_CAP_VIDEO_CAPTURE & cap.capabilities)) {
 29 |         qDebug("Error:No capture video device!\n");
 30 |         return;
 31 |     }
 32 |     qDebug("Device Information:\n");
 33 |     qDebug("driver name: %s\ncard name: %s\n",cap.driver,cap.card);
 34 |     qDebug("------------------------------------\n");
 35 | 
 36 |     /* 设置采集格式 */
 37 |     CLEAR(fmt);
 38 |     fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 39 |     fmt.fmt.pix.width  = PIXWIDTH;
 40 |     fmt.fmt.pix.height = PIXHEIGHT;
 41 |     fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;   //选择YUYV
 42 |     if (0 > ioctl(v4l2_fd, VIDIOC_S_FMT, &fmt)) {
 43 |         qDebug("set format failed\n");
 44 |         return;
 45 |     }
 46 |     qDebug("set format success\n");
 47 | 
 48 |     /* 判断是否已经设置为我们要求的YUYV像素格式,否则表示该设备不支持YUYV像素格式 */
 49 |     if (V4L2_PIX_FMT_YUYV != fmt.fmt.pix.pixelformat) {
 50 |         qDebug("Error: the device does not support YUYV format!\n");
 51 |         return;
 52 |     }
 53 |     /* 获取实际的帧宽高度 */
 54 |     qDebug("当前视频帧大小<%d * %d>, 颜色空间:%d\n", fmt.fmt.pix.width, fmt.fmt.pix.height,fmt.fmt.pix.colorspace);
 55 | 
 56 |     reqbuf.count = FRAMEBUFFER_COUNT;       //帧缓冲的数量
 57 |     reqbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 58 |     reqbuf.memory = V4L2_MEMORY_MMAP;
 59 |     if (0 > ioctl(v4l2_fd, VIDIOC_REQBUFS, &reqbuf)) {
 60 |         qDebug("request buffer failed\n");
 61 |         return;
 62 |     }
 63 |     qDebug("request buffer success\n");
 64 | 
 65 |     /* 建立内存映射 */
 66 |     for(n_buffers = 0;n_buffers < FRAMEBUFFER_COUNT;n_buffers++){
 67 |         CLEAR(buf);
 68 |         buf.index = n_buffers;
 69 |         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 70 |         buf.memory = V4L2_MEMORY_MMAP;
 71 | 
 72 |         if(0 > ioctl(v4l2_fd, VIDIOC_QUERYBUF, &buf)){
 73 |             qDebug("VIDIOC_QUERYBUF failed\n");
 74 |             return;
 75 |         }
 76 | 
 77 |         buffers[n_buffers].length = buf.length;
 78 |         buffers[n_buffers].start = mmap(NULL,buf.length,PROT_READ | PROT_WRITE, MAP_SHARED,v4l2_fd, buf.m.offset);
 79 |         if (MAP_FAILED == buffers[n_buffers].start) {
 80 |             qDebug("mmap error\n");
 81 |             return;
 82 |         }
 83 |     }
 84 |     qDebug("memory map success\n");
 85 | 
 86 |     /* 入队 */
 87 |     for(unsigned int i=0;i<n_buffers;i++){
 88 |         CLEAR(buf);
 89 |         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 90 |         buf.memory = V4L2_MEMORY_MMAP;
 91 |         buf.index = i;
 92 |         if (0 > ioctl(v4l2_fd, VIDIOC_QBUF, &buf)) {
 93 |             qDebug("入队失败\n");
 94 |             return;
 95 |         }
 96 |     }
 97 | 
 98 |     /* 开启视频流 */
 99 |     type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
100 |     if (0 > ioctl(v4l2_fd, VIDIOC_STREAMON, &type)) {
101 |         qDebug("open stream failed\n");
102 |         return;
103 |     }
104 |     qDebug("open stream success\n");
105 | 
106 |     /* 获取帧数据 */
107 |     while(show_flag){
108 |         do{
109 |             /* 初始化select()来进行I/O端口复用 */
110 |             FD_ZERO(&fds);
111 |             FD_SET(v4l2_fd,&fds);
112 | 
113 |             /* TimeOut */
114 |             tv.tv_sec  = 2;
115 |             tv.tv_usec = 0;
116 | 
117 |             ret = select(v4l2_fd+1,&fds,NULL,NULL,&tv);
118 |         } while ((ret == -1) && (errno = EINTR));
119 | 
120 |         if(ret == -1){
121 |             qDebug("select I/O failed\n");
122 |             return;
123 |         }
124 | 
125 |         //帧数据处理
126 |         unsigned char onebuf[PIXWIDTH*PIXHEIGHT*3];
127 |         handleData(onebuf);
128 | 
129 |         try{
130 |             QImage img_stream = QImage(onebuf,PIXWIDTH,PIXHEIGHT,QImage::Format_RGB888);
131 | 
132 |             if(parent->isVisible()){
133 |                 parent->img = img_stream;
134 |                 parent->update();
135 |             }
136 | 
137 |         }catch(...){}
138 |     }
139 | }
140 | 
141 | YUYVQThread::~YUYVQThread()
142 | {
143 |     exit_show();
144 | }
145 | 
146 | void YUYVQThread::handleData(unsigned char *bufData){
147 |     CLEAR(buf);
148 |     buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
149 |     buf.memory = V4L2_MEMORY_MMAP;
150 |     /* 出队 */
151 |     if(0 > ioctl(v4l2_fd,VIDIOC_DQBUF,&buf)){
152 |         qDebug("出队失败\n");
153 |         return;
154 |     }
155 | 
156 |     //数据处理
157 |     unsigned char temp[buf.bytesused];
158 |     memcpy(temp, buffers[buf.index].start, buf.bytesused);
159 |     yuv_to_rgb(temp, bufData);
160 | 
161 |     /* 再次入队*/
162 |     if (0 > ioctl(v4l2_fd, VIDIOC_QBUF, &buf)) {
163 |         qDebug("入队失败\n");
164 |         return;
165 |     }
166 | }
167 | 
168 | void YUYVQThread::exit_show(){
169 |     try{
170 |         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
171 |         if (0 > ioctl(v4l2_fd, VIDIOC_STREAMOFF, &type)) {
172 |             return;
173 |         }
174 |         for(int i = 0; i < FRAMEBUFFER_COUNT; i++){
175 |             munmap(buffers[i].start,buffers[i].length);
176 |         }
177 |     }catch(...){}
178 |     qDebug("exit show success\n");
179 | }
180 | 
181 | void YUYVQThread::yuv_to_rgb(unsigned char *yuv, unsigned char *rgb){
182 |     unsigned int i;
183 |     unsigned char* y0 = yuv + 0;
184 |     unsigned char* u0 = yuv + 1;
185 |     unsigned char* y1 = yuv + 2;
186 |     unsigned char* v0 = yuv + 3;
187 | 
188 |     unsigned  char* r0 = rgb + 0;
189 |     unsigned  char* g0 = rgb + 1;
190 |     unsigned  char* b0 = rgb + 2;
191 |     unsigned  char* r1 = rgb + 3;
192 |     unsigned  char* g1 = rgb + 4;
193 |     unsigned  char* b1 = rgb + 5;
194 | 
195 |     float rt0 = 0, gt0 = 0, bt0 = 0, rt1 = 0, gt1 = 0, bt1 = 0;
196 | 
197 |     for(i = 0; i <= (PIXWIDTH * PIXHEIGHT) / 2 ;i++)
198 |     {
199 |         bt0 = 1.164 * (*y0 - 16) + 2.018 * (*u0 - 128);
200 |         gt0 = 1.164 * (*y0 - 16) - 0.813 * (*v0 - 128) - 0.394 * (*u0 - 128);
201 |         rt0 = 1.164 * (*y0 - 16) + 1.596 * (*v0 - 128);
202 | 
203 |         bt1 = 1.164 * (*y1 - 16) + 2.018 * (*u0 - 128);
204 |         gt1 = 1.164 * (*y1 - 16) - 0.813 * (*v0 - 128) - 0.394 * (*u0 - 128);
205 |         rt1 = 1.164 * (*y1 - 16) + 1.596 * (*v0 - 128);
206 | 
207 | 
208 |         if(rt0 > 250)      rt0 = 255;
209 |         if(rt0< 0)        rt0 = 0;
210 | 
211 |         if(gt0 > 250)     gt0 = 255;
212 |         if(gt0 < 0)    gt0 = 0;
213 | 
214 |         if(bt0 > 250)    bt0 = 255;
215 |         if(bt0 < 0)    bt0 = 0;
216 | 
217 |         if(rt1 > 250)    rt1 = 255;
218 |         if(rt1 < 0)    rt1 = 0;
219 | 
220 |         if(gt1 > 250)    gt1 = 255;
221 |         if(gt1 < 0)    gt1 = 0;
222 | 
223 |         if(bt1 > 250)    bt1 = 255;
224 |         if(bt1 < 0)    bt1 = 0;
225 | 
226 |         *r0 = (unsigned char)rt0;
227 |         *g0 = (unsigned char)gt0;
228 |         *b0 = (unsigned char)bt0;
229 | 
230 |         *r1 = (unsigned char)rt1;
231 |         *g1 = (unsigned char)gt1;
232 |         *b1 = (unsigned char)bt1;
233 | 
234 |         yuv = yuv + 4;
235 |         rgb = rgb + 6;
236 |         if(yuv == NULL)
237 |             break;
238 | 
239 |         y0 = yuv;
240 |         u0 = yuv + 1;
241 |         y1 = yuv + 2;
242 |         v0 = yuv + 3;
243 | 
244 |         r0 = rgb + 0;
245 |         g0 = rgb + 1;
246 |         b0 = rgb + 2;
247 |         r1 = rgb + 3;
248 |         g1 = rgb + 4;
249 |         b1 = rgb + 5;
250 |     }
251 | }
252 | 


--------------------------------------------------------------------------------
/QT_V4L2_YUYV/yuyv_qthread.h:
--------------------------------------------------------------------------------
 1 | #ifndef YUYV_QTHREAD_H
 2 | #define YUYV_QTHREAD_H
 3 | 
 4 | #include <QThread>
 5 | #include <QDebug>
 6 | #include <QCoreApplication>
 7 | #include <QMutex>
 8 | 
 9 | #include <stdio.h>
10 | #include <stdlib.h>
11 | #include <sys/types.h>
12 | #include <sys/stat.h>
13 | #include <fcntl.h>
14 | #include <unistd.h>
15 | #include <sys/ioctl.h>
16 | #include <string.h>
17 | #include <errno.h>
18 | #include <sys/mman.h>
19 | #include <sys/select.h>
20 | #include <sys/time.h>
21 | #include <linux/videodev2.h>
22 | #include <stdbool.h>
23 | #include <string>
24 | 
25 | #include "video_show.h"
26 | 
27 | #define FRAMEBUFFER_COUNT 4
28 | #define PIXWIDTH    640
29 | #define PIXHEIGHT   480
30 | 
31 | #define CLEAR(x) memset(&(x), 0, sizeof(x))
32 | /* 命名空间 */
33 | using namespace std;
34 | 
35 | class YUYVQThread : public QThread{
36 | public:
37 |     explicit YUYVQThread(QWidget *parent = 0);
38 |     ~YUYVQThread();
39 | 
40 |     /* 视频显示标志位信号 */
41 |     bool show_flag;
42 | 
43 |     videoshow *parent;
44 | 
45 |     /* v4l2结构体 */
46 |     struct v4l2_format              fmt;
47 |     struct v4l2_buffer              buf;
48 |     struct v4l2_requestbuffers      reqbuf;
49 |     struct v4l2_capability          cap;
50 |     enum v4l2_buf_type              type;
51 |     fd_set                          fds;
52 |     struct timeval                  tv;
53 |     int                             ret, v4l2_fd;    //返回值ret和v4l2描述符v4l2_fd
54 |     unsigned int                    n_buffers;
55 |     string                          dev_name;
56 | 
57 |     /* buffer描述信息结构体 */
58 |     struct buffer {
59 |         void *start;
60 |         size_t length;
61 |     };
62 | 
63 |     struct buffer buffers[FRAMEBUFFER_COUNT];
64 | 
65 |     /* QThread 虚函数run */
66 |     void run();
67 | 
68 |     void exit_show();
69 |     void handleData(unsigned char *bufData);
70 |     void yuv_to_rgb(unsigned char* yuv, unsigned char *rgb);
71 | };
72 | #endif // YUYV_QTHREAD_H
73 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/Pic_Show_Ctrl.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2022-04-14T16:18:36
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = Pic_Show_Ctrl
12 | TEMPLATE = app
13 | 
14 | # The following define makes your compiler emit warnings if you use
15 | # any feature of Qt which has been marked as deprecated (the exact warnings
16 | # depend on your compiler). Please consult the documentation of the
17 | # deprecated API in order to know how to port your code away from it.
18 | DEFINES += QT_DEPRECATED_WARNINGS
19 | 
20 | # You can also make your code fail to compile if you use deprecated APIs.
21 | # In order to do so, uncomment the following line.
22 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
24 | 
25 | 
26 | SOURCES += \
27 |         main.cpp \
28 |         mainwindow.cpp
29 | 
30 | HEADERS += \
31 |         mainwindow.h
32 | 
33 | FORMS += \
34 |         mainwindow.ui
35 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/Pic_Show_Ctrl.pro.user:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <!DOCTYPE QtCreatorProject>
  3 | <!-- Written by QtCreator 4.6.2, 2022-09-29T16:27:42. -->
  4 | <qtcreator>
  5 |  <data>
  6 |   <variable>EnvironmentId</variable>
  7 |   <value type="QByteArray">{88abe084-5823-413a-9b06-9c0086f26107}</value>
  8 |  </data>
  9 |  <data>
 10 |   <variable>ProjectExplorer.Project.ActiveTarget</variable>
 11 |   <value type="int">0</value>
 12 |  </data>
 13 |  <data>
 14 |   <variable>ProjectExplorer.Project.EditorSettings</variable>
 15 |   <valuemap type="QVariantMap">
 16 |    <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
 17 |    <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
 18 |    <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
 19 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
 20 |     <value type="QString" key="language">Cpp</value>
 21 |     <valuemap type="QVariantMap" key="value">
 22 |      <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
 23 |     </valuemap>
 24 |    </valuemap>
 25 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
 26 |     <value type="QString" key="language">QmlJS</value>
 27 |     <valuemap type="QVariantMap" key="value">
 28 |      <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
 29 |     </valuemap>
 30 |    </valuemap>
 31 |    <value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
 32 |    <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
 33 |    <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
 34 |    <value type="int" key="EditorConfiguration.IndentSize">4</value>
 35 |    <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
 36 |    <value type="int" key="EditorConfiguration.MarginColumn">80</value>
 37 |    <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
 38 |    <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
 39 |    <value type="int" key="EditorConfiguration.PaddingMode">1</value>
 40 |    <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
 41 |    <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
 42 |    <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
 43 |    <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
 44 |    <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
 45 |    <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
 46 |    <value type="int" key="EditorConfiguration.TabSize">8</value>
 47 |    <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
 48 |    <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
 49 |    <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
 50 |    <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
 51 |    <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
 52 |    <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
 53 |   </valuemap>
 54 |  </data>
 55 |  <data>
 56 |   <variable>ProjectExplorer.Project.PluginSettings</variable>
 57 |   <valuemap type="QVariantMap"/>
 58 |  </data>
 59 |  <data>
 60 |   <variable>ProjectExplorer.Project.Target.0</variable>
 61 |   <valuemap type="QVariantMap">
 62 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">zynq_kit</value>
 63 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">zynq_kit</value>
 64 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{39174dac-6cbd-4cbc-adc2-84fd7566d2f5}</value>
 65 |    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
 66 |    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
 67 |    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
 68 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
 69 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-Pic_Show_Ctrl-zynq_kit-Debug</value>
 70 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
 71 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
 72 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 73 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
 74 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 75 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
 76 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
 77 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
 78 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
 79 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
 80 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
 81 |      </valuemap>
 82 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
 83 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 84 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
 85 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 86 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
 87 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
 88 |        <value type="QString">-w</value>
 89 |        <value type="QString">-r</value>
 90 |       </valuelist>
 91 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
 92 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
 93 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
 94 |      </valuemap>
 95 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
 96 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
 97 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 98 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
 99 |     </valuemap>
100 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
101 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
102 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
103 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
104 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
105 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
106 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
107 |        <value type="QString">-w</value>
108 |        <value type="QString">-r</value>
109 |       </valuelist>
110 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
111 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
112 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
113 |      </valuemap>
114 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
115 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
116 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
117 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
118 |     </valuemap>
119 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
120 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
121 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
122 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Debug</value>
123 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
124 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
125 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
126 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
127 |    </valuemap>
128 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
129 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-Pic_Show_Ctrl-zynq_kit-Release</value>
130 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
131 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
132 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
133 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
134 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
135 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
136 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">false</value>
137 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
138 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
139 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
140 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
141 |      </valuemap>
142 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
143 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
144 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
145 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
146 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
147 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
148 |        <value type="QString">-w</value>
149 |        <value type="QString">-r</value>
150 |       </valuelist>
151 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
152 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
153 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
154 |      </valuemap>
155 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
156 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
157 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
158 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
159 |     </valuemap>
160 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
161 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
162 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
163 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
164 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
165 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
166 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
167 |        <value type="QString">-w</value>
168 |        <value type="QString">-r</value>
169 |       </valuelist>
170 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
171 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
172 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
173 |      </valuemap>
174 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
175 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
176 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
177 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
178 |     </valuemap>
179 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
180 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
181 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
182 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Release</value>
183 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
184 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
185 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
186 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
187 |    </valuemap>
188 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
189 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-Pic_Show_Ctrl-zynq_kit-Profile</value>
190 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
191 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
192 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
193 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
194 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
195 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
196 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
197 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
198 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
199 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">true</value>
200 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
201 |      </valuemap>
202 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
203 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
204 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
205 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
206 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
207 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
208 |        <value type="QString">-w</value>
209 |        <value type="QString">-r</value>
210 |       </valuelist>
211 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
212 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
213 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
214 |      </valuemap>
215 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
216 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
217 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
218 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
219 |     </valuemap>
220 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
221 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
222 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
223 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
224 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
225 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
226 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
227 |        <value type="QString">-w</value>
228 |        <value type="QString">-r</value>
229 |       </valuelist>
230 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
231 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
232 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
233 |      </valuemap>
234 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
235 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
236 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
237 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
238 |     </valuemap>
239 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
240 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
241 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
242 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Profile</value>
243 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
244 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
245 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
246 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
247 |    </valuemap>
248 |    <value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
249 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
250 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
251 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
252 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
253 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">检测剩余的磁盘空间</value>
254 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
255 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.CheckForFreeDiskSpaceStep</value>
256 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
257 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
258 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
259 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
260 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
261 |       <value type="QString" key="RemoteLinux.CheckForFreeDiskSpaceStep.PathToCheck">/</value>
262 |       <value type="qulonglong" key="RemoteLinux.CheckForFreeDiskSpaceStep.RequiredSpace">5242880</value>
263 |      </valuemap>
264 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
265 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
266 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Kill current application instance</value>
267 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
268 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.KillAppStep</value>
269 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
270 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
271 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
272 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
273 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
274 |      </valuemap>
275 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.2">
276 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
277 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">通过SFTP上传文件</value>
278 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
279 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.DirectUploadStep</value>
280 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
281 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
282 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
283 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
284 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
285 |       <value type="bool" key="RemoteLinux.GenericDirectUploadStep.IgnoreMissingFiles">false</value>
286 |       <value type="bool" key="RemoteLinux.GenericDirectUploadStep.Incremental">true</value>
287 |      </valuemap>
288 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">3</value>
289 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
290 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
291 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
292 |     </valuemap>
293 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
294 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署到远程Linux主机</value>
295 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
296 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">DeployToGenericLinux</value>
297 |    </valuemap>
298 |    <value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
299 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
300 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
301 |     <value type="bool" key="Analyzer.QmlProfiler.AggregateTraces">false</value>
302 |     <value type="bool" key="Analyzer.QmlProfiler.FlushEnabled">false</value>
303 |     <value type="uint" key="Analyzer.QmlProfiler.FlushInterval">1000</value>
304 |     <value type="QString" key="Analyzer.QmlProfiler.LastTraceFile"></value>
305 |     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
306 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.AddedSuppressionFiles"/>
307 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectBusEvents">false</value>
308 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectSystime">false</value>
309 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableBranchSim">false</value>
310 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableCacheSim">false</value>
311 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
312 |     <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
313 |     <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
314 |     <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
315 |     <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
316 |     <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
317 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
318 |     <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
319 |     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
320 |     <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
321 |     <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
322 |     <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
323 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
324 |      <value type="int">0</value>
325 |      <value type="int">1</value>
326 |      <value type="int">2</value>
327 |      <value type="int">3</value>
328 |      <value type="int">4</value>
329 |      <value type="int">5</value>
330 |      <value type="int">6</value>
331 |      <value type="int">7</value>
332 |      <value type="int">8</value>
333 |      <value type="int">9</value>
334 |      <value type="int">10</value>
335 |      <value type="int">11</value>
336 |      <value type="int">12</value>
337 |      <value type="int">13</value>
338 |      <value type="int">14</value>
339 |     </valuelist>
340 |     <value type="int" key="PE.EnvironmentAspect.Base">1</value>
341 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
342 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Pic_Show_Ctrl (在远端设备上)</value>
343 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
344 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinuxRunConfiguration:Pic_Show_Ctrl</value>
345 |     <value type="QString" key="Qt4ProjectManager.MaemoRunConfiguration.Arguments"></value>
346 |     <value type="QString" key="Qt4ProjectManager.MaemoRunConfiguration.TargetName">Pic_Show_Ctrl</value>
347 |     <value type="int" key="RemoteLinux.EnvironmentAspect.Version">1</value>
348 |     <value type="QString" key="RemoteLinux.RunConfig.AlternateRemoteExecutable"></value>
349 |     <value type="bool" key="RemoteLinux.RunConfig.UseAlternateRemoteExecutable">false</value>
350 |     <value type="QString" key="RemoteLinux.RunConfig.WorkingDirectory"></value>
351 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
352 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
353 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
354 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
355 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
356 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
357 |    </valuemap>
358 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
359 |   </valuemap>
360 |  </data>
361 |  <data>
362 |   <variable>ProjectExplorer.Project.TargetCount</variable>
363 |   <value type="int">1</value>
364 |  </data>
365 |  <data>
366 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
367 |   <value type="int">18</value>
368 |  </data>
369 |  <data>
370 |   <variable>Version</variable>
371 |   <value type="int">18</value>
372 |  </data>
373 | </qtcreator>
374 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/Readme.txt:
--------------------------------------------------------------------------------
1 | 使用QImage简单地显示一张图片
2 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     QApplication a(argc, argv);
 7 | 
 8 |     MainWindow w;
 9 |     w.show();
10 | 
11 |     return a.exec();
12 | }
13 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/mainwindow.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include "ui_mainwindow.h"
 3 | 
 4 | MainWindow::MainWindow(QWidget *parent) :
 5 |     QMainWindow(parent),
 6 |     ui(new Ui::MainWindow)
 7 | {
 8 |     ui->setupUi(this);
 9 | }
10 | 
11 | MainWindow::~MainWindow()
12 | {
13 |     delete ui;
14 | }
15 | 
16 | void MainWindow::on_pushButton_clicked()
17 | {
18 |     QString picname = ("bug.png");
19 |     QImage *img=new QImage;         //新建一个image对象
20 |     if(!(img->load(picname))){
21 |         ui->statusBar->showMessage(tr("Open Image Failed!"),3000);
22 |         delete img;
23 |         return;
24 |     }
25 |     else{
26 |         ui->label->setPixmap(QPixmap::fromImage(*img));
27 |         ui->statusBar->showMessage(tr("Open Image Success!"),3000); //成功时显示的内容
28 |     }
29 | }
30 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/mainwindow.h:
--------------------------------------------------------------------------------
 1 | #ifndef MAINWINDOW_H
 2 | #define MAINWINDOW_H
 3 | 
 4 | #include <QMainWindow>
 5 | 
 6 | namespace Ui {
 7 | class MainWindow;
 8 | }
 9 | 
10 | class MainWindow : public QMainWindow
11 | {
12 |     Q_OBJECT
13 | 
14 | public:
15 |     explicit MainWindow(QWidget *parent = 0);
16 |     ~MainWindow();
17 | 
18 | private slots:
19 |     void on_pushButton_clicked();
20 | 
21 | private:
22 |     Ui::MainWindow *ui;
23 | };
24 | 
25 | #endif // MAINWINDOW_H
26 | 


--------------------------------------------------------------------------------
/Qt_Pic_Show/mainwindow.ui:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <ui version="4.0">
  3 |  <class>MainWindow</class>
  4 |  <widget class="QMainWindow" name="MainWindow">
  5 |   <property name="geometry">
  6 |    <rect>
  7 |     <x>0</x>
  8 |     <y>0</y>
  9 |     <width>800</width>
 10 |     <height>480</height>
 11 |    </rect>
 12 |   </property>
 13 |   <property name="windowTitle">
 14 |    <string>MainWindow</string>
 15 |   </property>
 16 |   <widget class="QWidget" name="centralWidget">
 17 |    <widget class="QLabel" name="label">
 18 |     <property name="geometry">
 19 |      <rect>
 20 |       <x>250</x>
 21 |       <y>20</y>
 22 |       <width>330</width>
 23 |       <height>330</height>
 24 |      </rect>
 25 |     </property>
 26 |     <property name="text">
 27 |      <string/>
 28 |     </property>
 29 |    </widget>
 30 |    <widget class="QPushButton" name="pushButton">
 31 |     <property name="geometry">
 32 |      <rect>
 33 |       <x>150</x>
 34 |       <y>370</y>
 35 |       <width>150</width>
 36 |       <height>40</height>
 37 |      </rect>
 38 |     </property>
 39 |     <property name="font">
 40 |      <font>
 41 |       <family>FangSong</family>
 42 |       <weight>75</weight>
 43 |       <bold>true</bold>
 44 |      </font>
 45 |     </property>
 46 |     <property name="text">
 47 |      <string>显示图片</string>
 48 |     </property>
 49 |    </widget>
 50 |    <widget class="QPushButton" name="pushButton_2">
 51 |     <property name="geometry">
 52 |      <rect>
 53 |       <x>530</x>
 54 |       <y>370</y>
 55 |       <width>150</width>
 56 |       <height>40</height>
 57 |      </rect>
 58 |     </property>
 59 |     <property name="font">
 60 |      <font>
 61 |       <family>FangSong</family>
 62 |       <weight>75</weight>
 63 |       <bold>true</bold>
 64 |      </font>
 65 |     </property>
 66 |     <property name="text">
 67 |      <string>关闭demo</string>
 68 |     </property>
 69 |    </widget>
 70 |   </widget>
 71 |   <widget class="QMenuBar" name="menuBar">
 72 |    <property name="geometry">
 73 |     <rect>
 74 |      <x>0</x>
 75 |      <y>0</y>
 76 |      <width>800</width>
 77 |      <height>28</height>
 78 |     </rect>
 79 |    </property>
 80 |   </widget>
 81 |   <widget class="QToolBar" name="mainToolBar">
 82 |    <attribute name="toolBarArea">
 83 |     <enum>TopToolBarArea</enum>
 84 |    </attribute>
 85 |    <attribute name="toolBarBreak">
 86 |     <bool>false</bool>
 87 |    </attribute>
 88 |   </widget>
 89 |   <widget class="QStatusBar" name="statusBar"/>
 90 |  </widget>
 91 |  <layoutdefault spacing="6" margin="11"/>
 92 |  <resources/>
 93 |  <connections>
 94 |   <connection>
 95 |    <sender>pushButton_2</sender>
 96 |    <signal>clicked()</signal>
 97 |    <receiver>MainWindow</receiver>
 98 |    <slot>close()</slot>
 99 |    <hints>
100 |     <hint type="sourcelabel">
101 |      <x>485</x>
102 |      <y>390</y>
103 |     </hint>
104 |     <hint type="destinationlabel">
105 |      <x>399</x>
106 |      <y>239</y>
107 |     </hint>
108 |    </hints>
109 |   </connection>
110 |  </connections>
111 | </ui>
112 | 


--------------------------------------------------------------------------------
/Qt_V4l2/QT_V4L2.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2022-06-07T20:28:36
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = QT_V4L2
12 | TEMPLATE = app
13 | 
14 | # The following define makes your compiler emit warnings if you use
15 | # any feature of Qt which has been marked as deprecated (the exact warnings
16 | # depend on your compiler). Please consult the documentation of the
17 | # deprecated API in order to know how to port your code away from it.
18 | DEFINES += QT_DEPRECATED_WARNINGS
19 | 
20 | # You can also make your code fail to compile if you use deprecated APIs.
21 | # In order to do so, uncomment the following line.
22 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
24 | 
25 | 
26 | SOURCES += \
27 |         main.cpp \
28 |         mainwindow.cpp
29 | 
30 | HEADERS += \
31 |         mainwindow.h
32 | 


--------------------------------------------------------------------------------
/Qt_V4l2/QT_V4L2.pro.user:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <!DOCTYPE QtCreatorProject>
  3 | <!-- Written by QtCreator 4.6.2, 2022-06-09T11:13:50. -->
  4 | <qtcreator>
  5 |  <data>
  6 |   <variable>EnvironmentId</variable>
  7 |   <value type="QByteArray">{88abe084-5823-413a-9b06-9c0086f26107}</value>
  8 |  </data>
  9 |  <data>
 10 |   <variable>ProjectExplorer.Project.ActiveTarget</variable>
 11 |   <value type="int">1</value>
 12 |  </data>
 13 |  <data>
 14 |   <variable>ProjectExplorer.Project.EditorSettings</variable>
 15 |   <valuemap type="QVariantMap">
 16 |    <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
 17 |    <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
 18 |    <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
 19 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
 20 |     <value type="QString" key="language">Cpp</value>
 21 |     <valuemap type="QVariantMap" key="value">
 22 |      <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
 23 |     </valuemap>
 24 |    </valuemap>
 25 |    <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
 26 |     <value type="QString" key="language">QmlJS</value>
 27 |     <valuemap type="QVariantMap" key="value">
 28 |      <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
 29 |     </valuemap>
 30 |    </valuemap>
 31 |    <value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
 32 |    <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
 33 |    <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
 34 |    <value type="int" key="EditorConfiguration.IndentSize">4</value>
 35 |    <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
 36 |    <value type="int" key="EditorConfiguration.MarginColumn">80</value>
 37 |    <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
 38 |    <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
 39 |    <value type="int" key="EditorConfiguration.PaddingMode">1</value>
 40 |    <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
 41 |    <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
 42 |    <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
 43 |    <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
 44 |    <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
 45 |    <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
 46 |    <value type="int" key="EditorConfiguration.TabSize">8</value>
 47 |    <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
 48 |    <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
 49 |    <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
 50 |    <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
 51 |    <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
 52 |    <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
 53 |   </valuemap>
 54 |  </data>
 55 |  <data>
 56 |   <variable>ProjectExplorer.Project.PluginSettings</variable>
 57 |   <valuemap type="QVariantMap"/>
 58 |  </data>
 59 |  <data>
 60 |   <variable>ProjectExplorer.Project.Target.0</variable>
 61 |   <valuemap type="QVariantMap">
 62 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 63 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop Qt 5.9.6 GCC 64bit</value>
 64 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">qt.596.gcc_64_kit</value>
 65 |    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
 66 |    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
 67 |    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
 68 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
 69 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-Desktop_Qt_5_9_6_GCC_64bit-Debug</value>
 70 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
 71 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
 72 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 73 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
 74 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 75 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
 76 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
 77 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
 78 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
 79 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
 80 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
 81 |      </valuemap>
 82 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
 83 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
 84 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
 85 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 86 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
 87 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
 88 |        <value type="QString">-w</value>
 89 |        <value type="QString">-r</value>
 90 |       </valuelist>
 91 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
 92 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
 93 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
 94 |      </valuemap>
 95 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
 96 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
 97 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
 98 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
 99 |     </valuemap>
100 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
101 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
102 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
103 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
104 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
105 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
106 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
107 |        <value type="QString">-w</value>
108 |        <value type="QString">-r</value>
109 |       </valuelist>
110 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
111 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
112 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
113 |      </valuemap>
114 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
115 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
116 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
117 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
118 |     </valuemap>
119 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
120 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
121 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
122 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Debug</value>
123 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
124 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
125 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
126 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
127 |    </valuemap>
128 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
129 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-Desktop_Qt_5_9_6_GCC_64bit-Release</value>
130 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
131 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
132 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
133 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
134 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
135 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
136 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">false</value>
137 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
138 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
139 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
140 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
141 |      </valuemap>
142 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
143 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
144 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
145 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
146 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
147 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
148 |        <value type="QString">-w</value>
149 |        <value type="QString">-r</value>
150 |       </valuelist>
151 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
152 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
153 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
154 |      </valuemap>
155 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
156 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
157 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
158 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
159 |     </valuemap>
160 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
161 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
162 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
163 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
164 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
165 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
166 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
167 |        <value type="QString">-w</value>
168 |        <value type="QString">-r</value>
169 |       </valuelist>
170 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
171 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
172 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
173 |      </valuemap>
174 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
175 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
176 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
177 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
178 |     </valuemap>
179 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
180 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
181 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
182 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Release</value>
183 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
184 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
185 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
186 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
187 |    </valuemap>
188 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
189 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-Desktop_Qt_5_9_6_GCC_64bit-Profile</value>
190 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
191 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
192 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
193 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
194 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
195 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
196 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
197 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
198 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
199 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">true</value>
200 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
201 |      </valuemap>
202 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
203 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
204 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
205 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
206 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
207 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
208 |        <value type="QString">-w</value>
209 |        <value type="QString">-r</value>
210 |       </valuelist>
211 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
212 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
213 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
214 |      </valuemap>
215 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
216 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
217 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
218 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
219 |     </valuemap>
220 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
221 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
222 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
223 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
224 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
225 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
226 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
227 |        <value type="QString">-w</value>
228 |        <value type="QString">-r</value>
229 |       </valuelist>
230 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
231 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
232 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
233 |      </valuemap>
234 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
235 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
236 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
237 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
238 |     </valuemap>
239 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
240 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
241 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
242 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Profile</value>
243 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
244 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
245 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
246 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
247 |    </valuemap>
248 |    <value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
249 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
250 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
251 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
252 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
253 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
254 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
255 |     </valuemap>
256 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
257 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署设置</value>
258 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
259 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
260 |    </valuemap>
261 |    <value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
262 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
263 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
264 |     <value type="bool" key="Analyzer.QmlProfiler.AggregateTraces">false</value>
265 |     <value type="bool" key="Analyzer.QmlProfiler.FlushEnabled">false</value>
266 |     <value type="uint" key="Analyzer.QmlProfiler.FlushInterval">1000</value>
267 |     <value type="QString" key="Analyzer.QmlProfiler.LastTraceFile"></value>
268 |     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
269 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.AddedSuppressionFiles"/>
270 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectBusEvents">false</value>
271 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectSystime">false</value>
272 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableBranchSim">false</value>
273 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableCacheSim">false</value>
274 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
275 |     <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
276 |     <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
277 |     <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
278 |     <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
279 |     <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
280 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
281 |     <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
282 |     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
283 |     <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
284 |     <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
285 |     <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
286 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
287 |      <value type="int">0</value>
288 |      <value type="int">1</value>
289 |      <value type="int">2</value>
290 |      <value type="int">3</value>
291 |      <value type="int">4</value>
292 |      <value type="int">5</value>
293 |      <value type="int">6</value>
294 |      <value type="int">7</value>
295 |      <value type="int">8</value>
296 |      <value type="int">9</value>
297 |      <value type="int">10</value>
298 |      <value type="int">11</value>
299 |      <value type="int">12</value>
300 |      <value type="int">13</value>
301 |      <value type="int">14</value>
302 |     </valuelist>
303 |     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
304 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
305 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">QT_V4L2</value>
306 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
307 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/hammer/Qt_Projs/QT_V4L2/QT_V4L2.pro</value>
308 |     <value type="bool" key="QmakeProjectManager.QmakeRunConfiguration.UseLibrarySearchPath">true</value>
309 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.CommandLineArguments"></value>
310 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">QT_V4L2.pro</value>
311 |     <value type="bool" key="Qt4ProjectManager.Qt4RunConfiguration.UseDyldImageSuffix">false</value>
312 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory"></value>
313 |     <value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default">/home/hammer/Qt_Projs/build-QT_V4L2-zynq_kit-Debug</value>
314 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
315 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
316 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
317 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
318 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
319 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
320 |    </valuemap>
321 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
322 |   </valuemap>
323 |  </data>
324 |  <data>
325 |   <variable>ProjectExplorer.Project.Target.1</variable>
326 |   <valuemap type="QVariantMap">
327 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">zynq_kit</value>
328 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">zynq_kit</value>
329 |    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{39174dac-6cbd-4cbc-adc2-84fd7566d2f5}</value>
330 |    <value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
331 |    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
332 |    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
333 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
334 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-zynq_kit-Debug</value>
335 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
336 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
337 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
338 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
339 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
340 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
341 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
342 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
343 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
344 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
345 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
346 |      </valuemap>
347 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
348 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
349 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
350 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
351 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
352 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
353 |        <value type="QString">-w</value>
354 |        <value type="QString">-r</value>
355 |       </valuelist>
356 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
357 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
358 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
359 |      </valuemap>
360 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
361 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
362 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
363 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
364 |     </valuemap>
365 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
366 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
367 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
368 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
369 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
370 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
371 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
372 |        <value type="QString">-w</value>
373 |        <value type="QString">-r</value>
374 |       </valuelist>
375 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
376 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
377 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
378 |      </valuemap>
379 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
380 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
381 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
382 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
383 |     </valuemap>
384 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
385 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
386 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
387 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Debug</value>
388 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
389 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
390 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">2</value>
391 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
392 |    </valuemap>
393 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
394 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-zynq_kit-Release</value>
395 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
396 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
397 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
398 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
399 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
400 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
401 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">false</value>
402 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
403 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
404 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">false</value>
405 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
406 |      </valuemap>
407 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
408 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
409 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
410 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
411 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
412 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
413 |        <value type="QString">-w</value>
414 |        <value type="QString">-r</value>
415 |       </valuelist>
416 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
417 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
418 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
419 |      </valuemap>
420 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
421 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
422 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
423 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
424 |     </valuemap>
425 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
426 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
427 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
428 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
429 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
430 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
431 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
432 |        <value type="QString">-w</value>
433 |        <value type="QString">-r</value>
434 |       </valuelist>
435 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
436 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
437 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
438 |      </valuemap>
439 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
440 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
441 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
442 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
443 |     </valuemap>
444 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
445 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
446 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
447 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Release</value>
448 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
449 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
450 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
451 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
452 |    </valuemap>
453 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
454 |     <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/hammer/Qt_Projs/build-QT_V4L2-zynq_kit-Profile</value>
455 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
456 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
457 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
458 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">qmake</value>
459 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
460 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">QtProjectManager.QMakeBuildStep</value>
461 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.LinkQmlDebuggingLibrary">true</value>
462 |       <value type="QString" key="QtProjectManager.QMakeBuildStep.QMakeArguments"></value>
463 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.QMakeForced">false</value>
464 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.SeparateDebugInfo">true</value>
465 |       <value type="bool" key="QtProjectManager.QMakeBuildStep.UseQtQuickCompiler">false</value>
466 |      </valuemap>
467 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
468 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
469 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
470 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
471 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
472 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
473 |        <value type="QString">-w</value>
474 |        <value type="QString">-r</value>
475 |       </valuelist>
476 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">false</value>
477 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments"></value>
478 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
479 |      </valuemap>
480 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
481 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
482 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
483 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
484 |     </valuemap>
485 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
486 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
487 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
488 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Make</value>
489 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
490 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.MakeStep</value>
491 |       <valuelist type="QVariantList" key="Qt4ProjectManager.MakeStep.AutomaticallyAddedMakeArguments">
492 |        <value type="QString">-w</value>
493 |        <value type="QString">-r</value>
494 |       </valuelist>
495 |       <value type="bool" key="Qt4ProjectManager.MakeStep.Clean">true</value>
496 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeArguments">clean</value>
497 |       <value type="QString" key="Qt4ProjectManager.MakeStep.MakeCommand"></value>
498 |      </valuemap>
499 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
500 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
501 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
502 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
503 |     </valuemap>
504 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
505 |     <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
506 |     <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
507 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Profile</value>
508 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Profile</value>
509 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4BuildConfiguration</value>
510 |     <value type="int" key="Qt4ProjectManager.Qt4BuildConfiguration.BuildConfiguration">0</value>
511 |     <value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
512 |    </valuemap>
513 |    <value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">3</value>
514 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
515 |     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
516 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
517 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
518 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">检测剩余的磁盘空间</value>
519 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
520 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.CheckForFreeDiskSpaceStep</value>
521 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
522 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
523 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
524 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
525 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
526 |       <value type="QString" key="RemoteLinux.CheckForFreeDiskSpaceStep.PathToCheck">/</value>
527 |       <value type="qulonglong" key="RemoteLinux.CheckForFreeDiskSpaceStep.RequiredSpace">5242880</value>
528 |      </valuemap>
529 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
530 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
531 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Kill current application instance</value>
532 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
533 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.KillAppStep</value>
534 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
535 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
536 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
537 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
538 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
539 |      </valuemap>
540 |      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.2">
541 |       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
542 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">通过SFTP上传文件</value>
543 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
544 |       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinux.DirectUploadStep</value>
545 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
546 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
547 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
548 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
549 |       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedTimes"/>
550 |       <value type="bool" key="RemoteLinux.GenericDirectUploadStep.IgnoreMissingFiles">false</value>
551 |       <value type="bool" key="RemoteLinux.GenericDirectUploadStep.Incremental">true</value>
552 |      </valuemap>
553 |      <value type="int" key="ProjectExplorer.BuildStepList.StepsCount">3</value>
554 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署</value>
555 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
556 |      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
557 |     </valuemap>
558 |     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
559 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">部署到远程Linux主机</value>
560 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
561 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">DeployToGenericLinux</value>
562 |    </valuemap>
563 |    <value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
564 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
565 |    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
566 |     <value type="bool" key="Analyzer.QmlProfiler.AggregateTraces">false</value>
567 |     <value type="bool" key="Analyzer.QmlProfiler.FlushEnabled">false</value>
568 |     <value type="uint" key="Analyzer.QmlProfiler.FlushInterval">1000</value>
569 |     <value type="QString" key="Analyzer.QmlProfiler.LastTraceFile"></value>
570 |     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
571 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.AddedSuppressionFiles"/>
572 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectBusEvents">false</value>
573 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.CollectSystime">false</value>
574 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableBranchSim">false</value>
575 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableCacheSim">false</value>
576 |     <value type="bool" key="Analyzer.Valgrind.Callgrind.EnableEventToolTips">true</value>
577 |     <value type="double" key="Analyzer.Valgrind.Callgrind.MinimumCostRatio">0.01</value>
578 |     <value type="double" key="Analyzer.Valgrind.Callgrind.VisualisationMinimumCostRatio">10</value>
579 |     <value type="bool" key="Analyzer.Valgrind.FilterExternalIssues">true</value>
580 |     <value type="int" key="Analyzer.Valgrind.LeakCheckOnFinish">1</value>
581 |     <value type="int" key="Analyzer.Valgrind.NumCallers">25</value>
582 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.RemovedSuppressionFiles"/>
583 |     <value type="int" key="Analyzer.Valgrind.SelfModifyingCodeDetection">1</value>
584 |     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
585 |     <value type="bool" key="Analyzer.Valgrind.ShowReachable">false</value>
586 |     <value type="bool" key="Analyzer.Valgrind.TrackOrigins">true</value>
587 |     <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">valgrind</value>
588 |     <valuelist type="QVariantList" key="Analyzer.Valgrind.VisibleErrorKinds">
589 |      <value type="int">0</value>
590 |      <value type="int">1</value>
591 |      <value type="int">2</value>
592 |      <value type="int">3</value>
593 |      <value type="int">4</value>
594 |      <value type="int">5</value>
595 |      <value type="int">6</value>
596 |      <value type="int">7</value>
597 |      <value type="int">8</value>
598 |      <value type="int">9</value>
599 |      <value type="int">10</value>
600 |      <value type="int">11</value>
601 |      <value type="int">12</value>
602 |      <value type="int">13</value>
603 |      <value type="int">14</value>
604 |     </valuelist>
605 |     <value type="int" key="PE.EnvironmentAspect.Base">1</value>
606 |     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
607 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">QT_V4L2 (在远端设备上)</value>
608 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
609 |     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">RemoteLinuxRunConfiguration:QT_V4L2</value>
610 |     <value type="QString" key="Qt4ProjectManager.MaemoRunConfiguration.Arguments"></value>
611 |     <value type="QString" key="Qt4ProjectManager.MaemoRunConfiguration.TargetName">QT_V4L2</value>
612 |     <value type="int" key="RemoteLinux.EnvironmentAspect.Version">1</value>
613 |     <value type="QString" key="RemoteLinux.RunConfig.AlternateRemoteExecutable"></value>
614 |     <value type="bool" key="RemoteLinux.RunConfig.UseAlternateRemoteExecutable">false</value>
615 |     <value type="QString" key="RemoteLinux.RunConfig.WorkingDirectory"></value>
616 |     <value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
617 |     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
618 |     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
619 |     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
620 |     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
621 |     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
622 |    </valuemap>
623 |    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
624 |   </valuemap>
625 |  </data>
626 |  <data>
627 |   <variable>ProjectExplorer.Project.TargetCount</variable>
628 |   <value type="int">2</value>
629 |  </data>
630 |  <data>
631 |   <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
632 |   <value type="int">18</value>
633 |  </data>
634 |  <data>
635 |   <variable>Version</variable>
636 |   <value type="int">18</value>
637 |  </data>
638 | </qtcreator>
639 | 


--------------------------------------------------------------------------------
/Qt_V4l2/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     if (2 != argc) {
 7 |         fprintf(stderr, "Usage: %s <video_dev>\n", argv[0]);
 8 |         exit(EXIT_FAILURE);
 9 |     }
10 | 
11 |     QApplication a(argc, argv);
12 |     MainWindow w;
13 |     w.show();
14 | 
15 |     return a.exec();
16 | }
17 | 


--------------------------------------------------------------------------------
/Qt_V4l2/mainwindow.cpp:
--------------------------------------------------------------------------------
  1 | #include "mainwindow.h"
  2 | #include <QGuiApplication>
  3 | #include <QScreen>
  4 | #include <QFile>
  5 | #include <QCoreApplication>
  6 | 
  7 | MainWindow::MainWindow(QWidget *parent)
  8 |     : QMainWindow(parent)
  9 | {
 10 |     /* 布局初始化 */
 11 |     layoutInit();
 12 | 
 13 |     /* 获取输入进行初始化 */
 14 |     QStringList device_parm = QCoreApplication::arguments();
 15 |     QString str = device_parm[1];
 16 | 
 17 |     v4l2_dev_init(str.toStdString());
 18 |     v4l2_stream_on();
 19 | 
 20 |     //点击开始按钮，打开定时器
 21 |     connect(pushButton[0],SIGNAL(clicked()),this,SLOT(timer_start()));
 22 | 
 23 |     //每隔固定的时间显示一帧
 24 |     timer = new QTimer();
 25 |     connect(timer, SIGNAL(timeout()), this, SLOT(video_show()));
 26 | 
 27 |     /* 按钮窗口关闭，先释放设备，再关闭窗口 */
 28 |     connect(pushButton[1],SIGNAL(clicked()),this,SLOT(v4l2_device_release()));
 29 |     connect(pushButton[1],SIGNAL(clicked()),this,SLOT(close()));
 30 | }
 31 | 
 32 | MainWindow::~MainWindow()
 33 | {
 34 | 
 35 | }
 36 | 
 37 | void MainWindow::layoutInit(){
 38 |     /* 获取屏幕的分辨率，Qt官方建议使用这种方法获取屏幕分辨率，防上多屏设备导致对应不上 */
 39 |     QList <QScreen *> list_screen =  QGuiApplication::screens();
 40 | 
 41 |     /* 如果是ARM平台，直接设置大小为屏幕的大小 */
 42 | #if __arm__
 43 |     /* 重设大小 */
 44 |     this->resize(list_screen.at(0)->geometry().width(),
 45 |                  list_screen.at(0)->geometry().height());
 46 | #else
 47 |     /* 否则则设置主窗体大小为800x480 */
 48 |     this->resize(800, 480);
 49 | #endif
 50 | 
 51 |     /* 实例化与布局，常规操作 */
 52 |     mainWidget = new QWidget();
 53 |     rightWidget = new QWidget();
 54 |     pushButton[0] = new QPushButton();
 55 |     pushButton[1] = new QPushButton();
 56 |     scrollArea = new QScrollArea();
 57 |     displayLabel = new QLabel(scrollArea);
 58 |     vboxLayout = new QVBoxLayout();
 59 |     hboxLayout = new QHBoxLayout();
 60 | 
 61 |     vboxLayout->addWidget(pushButton[0]);
 62 |     vboxLayout->addWidget(pushButton[1]);
 63 |     rightWidget->setLayout(vboxLayout);
 64 |     hboxLayout->addWidget(scrollArea);
 65 |     hboxLayout->addWidget(rightWidget);
 66 |     mainWidget->setLayout(hboxLayout);
 67 |     this->setCentralWidget(mainWidget);
 68 | 
 69 |     pushButton[0]->setMaximumHeight(40);
 70 |     pushButton[0]->setMaximumWidth(200);
 71 |     pushButton[1]->setMaximumHeight(40);
 72 |     pushButton[1]->setMaximumWidth(200);
 73 |     scrollArea->setMinimumWidth(this->width() - pushButton[0]->width());
 74 |     displayLabel->setMinimumWidth(scrollArea->width() * 0.75);
 75 |     displayLabel->setMinimumHeight(scrollArea->height() * 0.75);
 76 |     scrollArea->setWidget(displayLabel);
 77 |     /* 居中显示 */
 78 |     scrollArea->setAlignment(Qt::AlignCenter);
 79 |     /* 自动拉伸 */
 80 |     displayLabel->setScaledContents(true);
 81 |     pushButton[0]->setText("开始");
 82 |     pushButton[1]->setText("结束");
 83 | }
 84 | 
 85 | void MainWindow::video_show(){
 86 |      FrameBuffer frame;
 87 |      QPixmap pix;
 88 | 
 89 |      //获取一帧显示
 90 |      v4l2_get_one_frame(&frame);
 91 |      pix.loadFromData(frame.buf, frame.length);
 92 |      pix.scaled(displayLabel->width(),displayLabel->height(),Qt::KeepAspectRatio);
 93 |      displayLabel->setPixmap(pix);
 94 | 
 95 | }
 96 | 
 97 | /* 定时器控制帧 */
 98 | void MainWindow::timer_start(){
 99 |     // 1000/33约等于30,也就是每一秒显示30帧
100 |     timer->start(33);
101 | }
102 | 
103 | int MainWindow::v4l2_dev_init(string device_name){
104 |     /* 打开摄像头 */
105 |     v4l2_fd = open(device_name.c_str(),O_RDWR);
106 |     if(v4l2_fd < 0){
107 |         printf("open camera failed\n");
108 |         return -1;
109 |     }
110 |     printf("open camera success\n");
111 |     printf("------------------------------------\n");
112 | 
113 |     /* 获取摄像头能力 */
114 |     struct v4l2_capability cap;
115 |     // 查询设备功能
116 |     ioctl(v4l2_fd, VIDIOC_QUERYCAP, &cap);
117 |     // 判断是否是视频采集设备
118 |     if (!(V4L2_CAP_VIDEO_CAPTURE & cap.capabilities)) {
119 |         printf("Error:No capture video device!\n");
120 |         return -1;
121 |     }
122 |     printf("Device Information:\n");
123 |     printf("driver name: %s\ncard name: %s\n",cap.driver,cap.card);
124 |     printf("------------------------------------\n");
125 | 
126 |     /* 查询摄像头所支持的所有像素格式 */
127 |     struct v4l2_fmtdesc fmtdesc;
128 |     fmtdesc.index = 0;
129 |     fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
130 |     printf("Support Format:\n");
131 |     /* 先将数组清空 */
132 |     memset(&cam_fmts,0,sizeof(cam_fmts));
133 |     while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FMT, &fmtdesc)) {
134 |         // 将枚举出来的格式以及描述信息存放在数组中
135 |         cam_fmts[fmtdesc.index].pixelformat = fmtdesc.pixelformat;
136 |         memcpy(cam_fmts[fmtdesc.index].description, fmtdesc.description,sizeof(fmtdesc.description));
137 |         fmtdesc.index++;
138 |     }
139 | 
140 |     /* 打印格式 */
141 |     struct v4l2_frmsizeenum frmsize;
142 |     struct v4l2_frmivalenum frmival;
143 |     int i;
144 | 
145 |     frmsize.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
146 |     frmival.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
147 | 
148 |     for(i = 0; cam_fmts[i].pixelformat;i++){
149 |         printf("format<0x%x>, description<%s>\n", cam_fmts[i].pixelformat, cam_fmts[i].description);
150 | 
151 |         /* 枚举出摄像头所支持的所有视频采集分辨率 */
152 |         frmsize.index = 0;
153 |         frmsize.pixel_format = cam_fmts[i].pixelformat;
154 |         frmival.pixel_format = cam_fmts[i].pixelformat;
155 |         while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize)) {
156 | 
157 |             printf("size<%d*%d> ",frmsize.discrete.width,frmsize.discrete.height);
158 |             frmsize.index++;
159 | 
160 |             /* 获取摄像头视频采集帧率 */
161 |             frmival.index = 0;
162 |             frmival.width = frmsize.discrete.width;
163 |             frmival.height = frmsize.discrete.height;
164 |             while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival)) {
165 | 
166 |                 printf("<%dfps>", frmival.discrete.denominator / frmival.discrete.numerator);
167 |                 frmival.index++;
168 |             }
169 |             printf("\n");
170 |         }
171 |         printf("\n");
172 |     }
173 |     printf("-------------------------------------\n");
174 | 
175 |     /* 调用函数，设置摄像头格式 */
176 |     if(v4l2_set_format()<0){
177 |         printf("set format failed\n");
178 |         return -1;
179 |     }
180 | 
181 |     return 0;
182 | }
183 | 
184 | int MainWindow::v4l2_set_format(){
185 |     struct v4l2_format fmt;
186 |     struct v4l2_streamparm streamparm;
187 | 
188 |     fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
189 |     fmt.fmt.pix.width  = PIXWIDTH;
190 |     fmt.fmt.pix.height = PIXHEIGHT;
191 |     fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;   //选择MJPEG
192 |     if (0 > ioctl(v4l2_fd, VIDIOC_S_FMT, &fmt)) {
193 |         printf("set format failed\n");
194 |         return -1;
195 |     }
196 |     printf("set format success\n");
197 | 
198 |     /* 判断是否已经设置为我们要求的MJPEG像素格式,否则表示该设备不支持MJPEG像素格式 */
199 |     if (V4L2_PIX_FMT_MJPEG != fmt.fmt.pix.pixelformat) {
200 |         printf("Error: the device does not support MJPEG format!\n");
201 |         return -1;
202 |     }
203 |     /* 获取实际的帧宽高度 */
204 |     printf("当前视频帧大小<%d * %d>, 颜色空间:%d\n", fmt.fmt.pix.width, fmt.fmt.pix.height,fmt.fmt.pix.colorspace);
205 | 
206 |     /* 获取streamparm */
207 |     streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
208 |     if (0 > ioctl(v4l2_fd, VIDIOC_G_PARM, &streamparm)) {
209 |         printf("get parm failed\n");
210 |         return -1;
211 |     }
212 | 
213 |     /* 判断是否支持帧率设置 */
214 |     if (V4L2_CAP_TIMEPERFRAME & streamparm.parm.capture.capability) {
215 |         streamparm.parm.capture.timeperframe.numerator = 1;
216 |         streamparm.parm.capture.timeperframe.denominator = 30;//30fps
217 |         if (0 > ioctl(v4l2_fd, VIDIOC_S_PARM, &streamparm)) {
218 |             printf("Error:device do not support set fps\n");
219 |             return -1;
220 |         }
221 |     }
222 | 
223 |     return 0;
224 | }
225 | 
226 | int MainWindow::v4l2_init_buffer(){
227 |     struct v4l2_requestbuffers reqbuf;
228 |     reqbuf.count = FRAMEBUFFER_COUNT;       //帧缓冲的数量
229 |     reqbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
230 |     reqbuf.memory = V4L2_MEMORY_MMAP;
231 |     if (0 > ioctl(v4l2_fd, VIDIOC_REQBUFS, &reqbuf)) {
232 |         printf("request buffer failed\n");
233 |         return -1;
234 |     }
235 |     printf("request buffer success\n");
236 | 
237 |     /* 建立内存映射 */
238 |     struct v4l2_buffer buf;
239 |     unsigned int n_buffers = 0;
240 |     /* calloc函数为buffer_infos动态分配内存空间并初始化为0*/
241 |     buffer_infos = (struct buffer_info*)calloc(FRAMEBUFFER_COUNT,sizeof(struct buffer_info));
242 | 
243 |     for (n_buffers = 0; n_buffers < FRAMEBUFFER_COUNT; n_buffers++) {
244 |         memset(&buf,0,sizeof(buf));
245 |         buf.index = n_buffers;
246 |         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
247 |         buf.memory = V4L2_MEMORY_MMAP;
248 |         if(0 > ioctl(v4l2_fd, VIDIOC_QUERYBUF, &buf)){
249 |             printf("VIDIOC_QUERYBUF failed\n");
250 |             return -1;
251 |         };
252 | 
253 |         buffer_infos[n_buffers].start = mmap(NULL, buf.length,PROT_READ | PROT_WRITE, MAP_SHARED,v4l2_fd, buf.m.offset);
254 |         buffer_infos[n_buffers].length = buf.length;
255 | 
256 |         if (MAP_FAILED == buffer_infos[n_buffers].start) {
257 |             printf("mmap error\n");
258 |             return -1;
259 |         }
260 |     }
261 |     printf("memory map success\n");
262 | 
263 |     /* 入队 */
264 |     for (buf.index = 0; buf.index < FRAMEBUFFER_COUNT; buf.index++) {
265 |         if (0 > ioctl(v4l2_fd, VIDIOC_QBUF, &buf)) {
266 |             printf("入队失败\n");
267 |             return -1;
268 |         }
269 |     }
270 | 
271 |     return 0;
272 | }
273 | 
274 | int MainWindow::v4l2_stream_on(){
275 |     /* 调用函数，初始化buffer */
276 |     if(v4l2_init_buffer()<0){
277 |         printf("------------------------------------\n");
278 |         return -1;
279 |     }
280 | 
281 |     /* 打开摄像头、摄像头开始采集数据 */
282 |     enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
283 | 
284 |     if (0 > ioctl(v4l2_fd, VIDIOC_STREAMON, &type)) {
285 |         printf("open stream failed\n");
286 |         return -1;
287 |     }
288 |     printf("open stream success\n");
289 | 
290 |     return 0;
291 | }
292 | 
293 | int MainWindow::v4l2_get_one_frame(FrameBuffer *framebuf){
294 |     //初始化select()来进行I/O端口复用
295 |     fd_set fds;
296 |     FD_ZERO(&fds);
297 |     FD_SET(v4l2_fd,&fds);
298 | 
299 |     //设置等待时间为2s
300 |     struct timeval tv;
301 |     tv.tv_sec = 2;
302 |     tv.tv_usec = 0;
303 |     select(v4l2_fd+1,&fds,NULL,NULL,&tv);
304 | 
305 |     //将帧缓冲添加到队列
306 |     struct v4l2_buffer one_buf;
307 |     memset(&one_buf,0,sizeof(one_buf));
308 |     one_buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
309 |     one_buf.memory = V4L2_MEMORY_MMAP;
310 | 
311 |     // 从视频缓冲区的输出队列中取得一个已经保存有一帧视频数据的视频缓冲区
312 |     if(0 > ioctl(v4l2_fd,VIDIOC_DQBUF,&one_buf)){
313 |         printf("VIDIOC_DQBUF failed!\n");
314 |         return -1;
315 |     }
316 | 
317 |     //将buffer_infos中已使用的字节数copy到framebuf中
318 |     memcpy(framebuf->buf,(char *)buffer_infos[one_buf.index].start,one_buf.bytesused);//bytesused 表示buf中已经使用的字节数
319 |     framebuf->length = one_buf.bytesused;
320 | 
321 |     if(ioctl(v4l2_fd,VIDIOC_QBUF,&one_buf)==-1){
322 |         printf("VIDIOC_QBUF failed\n");
323 |         return -1;
324 |     }
325 | 
326 |     return 0;
327 | }
328 | 
329 | int MainWindow::v4l2_device_release(){
330 |     /* 释放映射缓冲区 */
331 |     int i;
332 |     //关闭定时器
333 |     timer->stop();
334 |     for(i = 0; i < FRAMEBUFFER_COUNT; i++){
335 |         munmap(buffer_infos[i].start,buffer_infos[i].length);
336 |     }
337 |     printf("------------------------------------\n");
338 |     printf("munmap success\n");
339 |     printf("camera release finished\n");
340 | 
341 |     return 0;
342 | }
343 | 


--------------------------------------------------------------------------------
/Qt_V4l2/mainwindow.h:
--------------------------------------------------------------------------------
  1 | #ifndef MAINWINDOW_H
  2 | #define MAINWINDOW_H
  3 | 
  4 | #include <QMainWindow>
  5 | #include <QVBoxLayout>
  6 | #include <QHBoxLayout>
  7 | #include <QPushButton>
  8 | #include <QLabel>
  9 | #include <QScrollArea>
 10 | #include <QDebug>
 11 | #include <QTimer>
 12 | 
 13 | #include <stdio.h>
 14 | #include <stdlib.h>
 15 | #include <sys/types.h>
 16 | #include <sys/stat.h>
 17 | #include <fcntl.h>
 18 | #include <unistd.h>
 19 | #include <sys/ioctl.h>
 20 | #include <string.h>
 21 | #include <errno.h>
 22 | #include <sys/mman.h>
 23 | #include <sys/select.h>
 24 | #include <sys/time.h>
 25 | #include <linux/videodev2.h>
 26 | #include <stdbool.h>
 27 | #include <string>
 28 | 
 29 | /* 命名空间 */
 30 | using namespace std;
 31 | 
 32 | #define FRAMEBUFFER_COUNT 4
 33 | #define PIXWIDTH    640
 34 | #define PIXHEIGHT   480
 35 | 
 36 | /* buffer描述信息 */
 37 | struct buffer_info {
 38 |     void *start;
 39 |     unsigned int length;
 40 | };
 41 | 
 42 | /* 摄像头像素格式及其描述信息 */
 43 | typedef struct camera_format {
 44 |     unsigned char description[32];  //字符串描述信息
 45 |     unsigned int pixelformat;       //像素格式
 46 | } cam_fmt;
 47 | 
 48 | /* 帧描述信息 */
 49 | typedef struct Frame_Buffer{
 50 |     unsigned char buf[PIXHEIGHT*PIXWIDTH*3];
 51 |     int length;
 52 | }FrameBuffer;
 53 | 
 54 | class MainWindow : public QMainWindow
 55 | {
 56 |     Q_OBJECT
 57 | 
 58 | public:
 59 |     explicit MainWindow(QWidget *parent = 0);
 60 | 
 61 |     /* v4l2函数 */
 62 |     int v4l2_dev_init(string device_name);
 63 | 
 64 |     int v4l2_set_format();
 65 | 
 66 |     int v4l2_init_buffer();
 67 | 
 68 |     int v4l2_stream_on();
 69 | 
 70 |     int v4l2_get_one_frame(FrameBuffer * framebuf);
 71 | 
 72 | //    int v4l2_device_release();
 73 |     ~MainWindow();
 74 | 
 75 | private:
 76 |     /* 主容器，Widget也可以当作一种容器 */
 77 |     QWidget *mainWidget;
 78 |     /* 界面右侧区域容器 */
 79 |     QWidget *rightWidget;
 80 |     /* 滚动区域，方便开发高分辨率 */
 81 |     QScrollArea *scrollArea;
 82 |     /* 将采集到的图像使用Widget显示 */
 83 |     QLabel *displayLabel;
 84 |     /* 界面水平区域布局 */
 85 |     QHBoxLayout *hboxLayout;
 86 |     /* 界面垂直区域布局 */
 87 |     QVBoxLayout *vboxLayout;
 88 |     /* 开启/关闭摄像头按钮 */
 89 |     QPushButton *pushButton[2];
 90 | 
 91 |     /* 布局初始化 */
 92 |     void layoutInit();
 93 | 
 94 |     /* 摄像头描述符 */
 95 |     int v4l2_fd;
 96 |     /* 定时器 */
 97 |     QTimer *timer;
 98 |     /* buffer */
 99 |     struct buffer_info *buffer_infos;
100 | 
101 |     cam_fmt cam_fmts[10];
102 | 
103 | private slots:
104 |     /* 视频显示 */
105 |     void video_show();
106 |     /* 定时器启动*/
107 |     void timer_start();
108 |     int v4l2_device_release();
109 | };
110 | 
111 | #endif // MAINWINDOW_H
112 | 


--------------------------------------------------------------------------------
/Qt_V4l2/v4l2用户手册API.pdf:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Huge-Hammer/Linux-C-Coding/983d5ff48fa49bf9cbc916c7bcad5baad832c897/Qt_V4l2/v4l2用户手册API.pdf


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Linux-C-Coding
2 | Linux C编程实战代码（可运行在ZYNQ7010开发板）  
3 | 作者：Hammer  
4 | Linux Framebuffer编程之lcd屏幕显示jpeg图像 源代码 jpeg_show_lcd.c ,食用方法 https://blog.csdn.net/qq_41873311/article/details/125000656  
5 | V4L2编程之USB摄像头采集jpeg图像 源代码 v4l2_cap_jpeg.c ,食用方法 https://blog.csdn.net/qq_41873311/article/details/125047315  
6 | V4L2+QT+USB摄像头实时显示视频（Arm,Linux,window均适用）源代码文件夹 Qt_V4l2 ,食用方法 https://blog.csdn.net/qq_41873311/article/details/125209866  
7 | QThread+QPainter优化V4l2视频显示 源代码文件夹 V4l2_QThread ,食用方法 https://blog.csdn.net/qq_41873311/article/details/125365711
8 | 


--------------------------------------------------------------------------------
/V4l2_QThread/Readme.txt:
--------------------------------------------------------------------------------
1 | mjpeg格式+qthread+v4l2，带界面，无录制功能，只有显示功能（Hammer初版）
2 | 


--------------------------------------------------------------------------------
/V4l2_QThread/V4l2_Thread.pro:
--------------------------------------------------------------------------------
 1 | #-------------------------------------------------
 2 | #
 3 | # Project created by QtCreator 2022-06-14T09:46:22
 4 | #
 5 | #-------------------------------------------------
 6 | 
 7 | QT       += core gui
 8 | 
 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
10 | 
11 | TARGET = V4l2_Thread
12 | TEMPLATE = app
13 | 
14 | # The following define makes your compiler emit warnings if you use
15 | # any feature of Qt which has been marked as deprecated (the exact warnings
16 | # depend on your compiler). Please consult the documentation of the
17 | # deprecated API in order to know how to port your code away from it.
18 | DEFINES += QT_DEPRECATED_WARNINGS
19 | 
20 | # You can also make your code fail to compile if you use deprecated APIs.
21 | # In order to do so, uncomment the following line.
22 | # You can also select to disable deprecated APIs only up to a certain version of Qt.
23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
24 | 
25 | 
26 | SOURCES += \
27 |         main.cpp \
28 |         mainwindow.cpp \
29 |         videoshow.cpp \
30 |         v4l2_thread.cpp
31 | 
32 | HEADERS += \
33 |         mainwindow.h \
34 |         videoshow.h \
35 |         v4l2_thread.h
36 | 
37 | 


--------------------------------------------------------------------------------
/V4l2_QThread/main.cpp:
--------------------------------------------------------------------------------
 1 | #include "mainwindow.h"
 2 | #include <QApplication>
 3 | 
 4 | int main(int argc, char *argv[])
 5 | {
 6 |     /* 输入校验 */
 7 |     if (2 != argc) {
 8 |         fprintf(stderr, "Usage: %s <video_dev>\n", argv[0]);
 9 |         exit(EXIT_FAILURE);
10 |     }
11 |     QApplication a(argc, argv);
12 |     MainWindow w;
13 |     w.show();
14 |     w.setWindowTitle("QT V4L2 Hammer");
15 | 
16 |     return a.exec();
17 | }
18 | 


--------------------------------------------------------------------------------
/V4l2_QThread/mainwindow.cpp:
--------------------------------------------------------------------------------
  1 | #include "mainwindow.h"
  2 | 
  3 | MainWindow::MainWindow(QWidget *parent)
  4 |     : QMainWindow(parent)
  5 | {
  6 |     /* 获取屏幕的分辨率，Qt官方建议使用这种方法获取屏幕分辨率，防上多屏设备导致对应不上 */
  7 |     QList <QScreen *> list_screen =  QGuiApplication::screens();
  8 | 
  9 |     /* 如果是ARM平台，直接设置大小为屏幕的大小 */
 10 | #if __arm__
 11 |     /* 重设大小 */
 12 |     this->resize(list_screen.at(0)->geometry().width(),
 13 |         list_screen.at(0)->geometry().height());
 14 | #else
 15 |     /* 否则则设置主窗体大小为800x480 */
 16 |     this->resize(800, 480);
 17 | #endif
 18 | 
 19 |     /* 控件实例化 */
 20 |     mainWidget  = new QWidget();
 21 |     rightWidget = new QWidget();
 22 | 
 23 |     hboxLayout  = new QHBoxLayout();
 24 |     vboxLayout = new QVBoxLayout();
 25 | 
 26 |     exitBtn      = new QPushButton("退出",this);
 27 |     startCapture = new QPushButton("开始",this);
 28 |     takePic      = new QPushButton("拍照",this);
 29 | 
 30 |     video = new videoshow();
 31 |     video->setFixedWidth(PIXWIDTH);
 32 |     video->setFixedHeight(PIXHEIGHT);
 33 | 
 34 |     /* 按钮属性 */
 35 |     exitBtn->setMaximumHeight(40);
 36 |     exitBtn->setMaximumWidth(100);
 37 |     startCapture->setMaximumHeight(40);
 38 |     startCapture->setMaximumWidth(100);
 39 |     takePic->setMaximumHeight(40);
 40 |     takePic->setMaximumWidth(100);
 41 |     takePic->setEnabled(false);
 42 | 
 43 |     vboxLayout->addWidget(startCapture);
 44 |     vboxLayout->addWidget(takePic);
 45 |     vboxLayout->addWidget(exitBtn);
 46 | 
 47 |     rightWidget->setLayout(vboxLayout);
 48 | 
 49 |     hboxLayout->addWidget(video);
 50 |     hboxLayout->addWidget(rightWidget);
 51 | 
 52 |     mainWidget->setLayout(hboxLayout);
 53 |     this->setCentralWidget(mainWidget);
 54 | 
 55 |     /* 信号连接 */
 56 |     connect(exitBtn,SIGNAL(clicked()),this,SLOT(onExitClicked()));
 57 |     connect(startCapture,SIGNAL(clicked()),this,SLOT(onStartCapture()));
 58 |     connect(takePic,SIGNAL(clicked()),this,SLOT(onTakePic()));
 59 | 
 60 |     t = new V4l2Thread(video);
 61 | 
 62 |     pic_num = 1;
 63 | 
 64 |     dir = new QDir();
 65 |     if(!dir->exists("images")){
 66 |         dir->mkdir("images");
 67 |     }
 68 |     dir->setCurrent("images");
 69 | }
 70 | 
 71 | MainWindow::~MainWindow()
 72 | {
 73 | 
 74 | }
 75 | 
 76 | void MainWindow::onExitClicked()
 77 | {
 78 |     t->show_flag = false;
 79 |     t->exit_show();
 80 |     t->destroyed();
 81 |     qDebug("bye bye");
 82 |     this->close();
 83 |     exit(0);
 84 | }
 85 | 
 86 | void MainWindow::onStartCapture()
 87 | {
 88 |     if(t->show_flag == false){
 89 |         t->show_flag = true;
 90 |         t->start();
 91 |         takePic->setEnabled(true);
 92 |         qDebug("start");
 93 |     }
 94 | }
 95 | 
 96 | void MainWindow::onTakePic()
 97 | {
 98 |     if(!video->img.isNull()){
 99 |         QString fileName = QCoreApplication::applicationDirPath() + "/images" + "/test" + QString::number(pic_num) + ".jpeg";
100 |         qDebug()<<"正在保存"<<fileName<<"图片，请稍后..."<<endl;
101 |         video->img.save(fileName, "JPEG", -1);
102 |         qDebug()<<"保存完成！ "<<endl;
103 |         pic_num++;
104 |     }
105 | }
106 | 


--------------------------------------------------------------------------------
/V4l2_QThread/mainwindow.h:
--------------------------------------------------------------------------------
 1 | #ifndef MAINWINDOW_H
 2 | #define MAINWINDOW_H
 3 | 
 4 | #include <QDebug>
 5 | #include <QWidget>
 6 | #include <QMainWindow>
 7 | #include <QVBoxLayout>
 8 | #include <QHBoxLayout>
 9 | #include <QPushButton>
10 | #include <QGuiApplication>
11 | #include <QScreen>
12 | #include <QCoreApplication>
13 | #include <QDir>
14 | 
15 | #include "videoshow.h"
16 | #include "v4l2_thread.h"
17 | 
18 | class MainWindow : public QMainWindow
19 | {
20 |     Q_OBJECT
21 | 
22 | public:
23 |     MainWindow(QWidget *parent = 0);
24 |     ~MainWindow();
25 | 
26 |     /* 主容器，Widget也可以当作一种容器 */
27 |     QWidget *mainWidget;
28 |     QWidget *rightWidget;
29 |     /* 界面水平区域布局 */
30 |     QHBoxLayout *hboxLayout;
31 |     /* 界面垂直区域布局 */
32 |     QVBoxLayout *vboxLayout;
33 |     videoshow   *video;
34 |     QPushButton *startCapture;
35 |     QPushButton *takePic;
36 |     QPushButton *exitBtn;
37 | 
38 |     V4l2Thread *t;
39 | 
40 |     /* 保存照片的序号 */
41 |     int pic_num;
42 |     /* 照片保存位置 */
43 |     QDir *dir;
44 | 
45 | private slots:
46 |     void onExitClicked();
47 |     void onStartCapture();
48 |     void onTakePic();
49 | };
50 | 
51 | #endif // MAINWINDOW_H
52 | 


--------------------------------------------------------------------------------
/V4l2_QThread/v4l2_thread.cpp:
--------------------------------------------------------------------------------
  1 | #include "v4l2_thread.h"
  2 | 
  3 | V4l2Thread::V4l2Thread(QWidget *parent):
  4 |     QThread(parent){
  5 | 
  6 |     this->parent = (videoshow*)parent;
  7 |     show_flag = false;
  8 |     v4l2_fd = -1;
  9 | 
 10 |     /* 获取输入进行初始化 */
 11 |     QStringList device_parm = QCoreApplication::arguments();
 12 |     QString str = device_parm[1];
 13 |     dev_name = str.toStdString();
 14 | }
 15 | 
 16 | void V4l2Thread::run(){
 17 |     /* 打开设备 */
 18 |     v4l2_fd = -1;
 19 |     v4l2_fd = open(dev_name.c_str(), O_RDWR | O_NONBLOCK, 0);
 20 |     if(v4l2_fd < 0){
 21 |         qDebug("open camera failed\n");
 22 |         return;
 23 |     }
 24 |     qDebug("open camera success\n");
 25 |     qDebug("------------------------------------\n");
 26 | 
 27 |     /* 获取摄像头能力 */
 28 |     ioctl(v4l2_fd, VIDIOC_QUERYCAP, &cap);
 29 |     /* 判断是否是视频采集设备 */
 30 |     if (!(V4L2_CAP_VIDEO_CAPTURE & cap.capabilities)) {
 31 |         qDebug("Error:No capture video device!\n");
 32 |         return;
 33 |     }
 34 |     qDebug("Device Information:\n");
 35 |     qDebug("driver name: %s\ncard name: %s\n",cap.driver,cap.card);
 36 |     qDebug("------------------------------------\n");
 37 | 
 38 |     /* 查询摄像头所支持的所有像素格式 */
 39 |     fmtdesc.index = 0;
 40 |     fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 41 |     qDebug("Support Format:\n");
 42 |     CLEAR(cam_fmts);
 43 |     while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FMT, &fmtdesc)) {
 44 |         // 将枚举出来的格式以及描述信息存放在数组中
 45 |         cam_fmts[fmtdesc.index].pixelformat = fmtdesc.pixelformat;
 46 |         memcpy(cam_fmts[fmtdesc.index].description, fmtdesc.description,sizeof(fmtdesc.description));
 47 |         fmtdesc.index++;
 48 |     }
 49 | 
 50 |     frmsize.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 51 |     frmival.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 52 | 
 53 |     for(int i = 0; cam_fmts[i].pixelformat;i++){
 54 |         qDebug("format<0x%x>, description<%s>\n", cam_fmts[i].pixelformat, cam_fmts[i].description);
 55 | 
 56 |         /* 枚举出摄像头所支持的所有视频采集分辨率 */
 57 |         frmsize.index = 0;
 58 |         frmsize.pixel_format = cam_fmts[i].pixelformat;
 59 |         frmival.pixel_format = cam_fmts[i].pixelformat;
 60 |         while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize)) {
 61 | 
 62 |             frmsize.index++;
 63 | 
 64 |             /* 获取摄像头视频采集帧率 */
 65 |             frmival.index = 0;
 66 |             frmival.width = frmsize.discrete.width;
 67 |             frmival.height = frmsize.discrete.height;
 68 |             while (0 == ioctl(v4l2_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival)) {
 69 | 
 70 |                 qDebug("size<%d*%d> <%dfps>", frmsize.discrete.width,frmsize.discrete.height,frmival.discrete.denominator / frmival.discrete.numerator);
 71 |                 frmival.index++;
 72 |             }
 73 |         }
 74 |     }
 75 |     qDebug("------------------------------------\n");
 76 | 
 77 |     /* 设置采集格式 */
 78 |     CLEAR(fmt);
 79 |     fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 80 |     fmt.fmt.pix.width  = PIXWIDTH;
 81 |     fmt.fmt.pix.height = PIXHEIGHT;
 82 |     fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;   //选择MJPEG
 83 |     if (0 > ioctl(v4l2_fd, VIDIOC_S_FMT, &fmt)) {
 84 |         qDebug("set format failed\n");
 85 |         return;
 86 |     }
 87 |     qDebug("set format success\n");
 88 | 
 89 |     /* 判断是否已经设置为我们要求的MJPEG像素格式,否则表示该设备不支持MJPEG像素格式 */
 90 |     if (V4L2_PIX_FMT_MJPEG != fmt.fmt.pix.pixelformat) {
 91 |         qDebug("Error: the device does not support MJPEG format!\n");
 92 |         return;
 93 |     }
 94 |     /* 获取实际的帧宽高度 */
 95 |     qDebug("当前视频帧大小<%d * %d>, 颜色空间:%d\n", fmt.fmt.pix.width, fmt.fmt.pix.height,fmt.fmt.pix.colorspace);
 96 | 
 97 |     reqbuf.count = FRAMEBUFFER_COUNT;       //帧缓冲的数量
 98 |     reqbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 99 |     reqbuf.memory = V4L2_MEMORY_MMAP;
100 |     if (0 > ioctl(v4l2_fd, VIDIOC_REQBUFS, &reqbuf)) {
101 |         qDebug("request buffer failed\n");
102 |         return;
103 |     }
104 |     qDebug("request buffer success\n");
105 | 
106 |     /* calloc函数为buffer_infos动态分配内存空间并初始化为0*/
107 |     buffer_infos = (struct buffer_info*)calloc(FRAMEBUFFER_COUNT,sizeof(struct buffer_info));
108 |     /* 建立内存映射 */
109 |     for(n_buffers = 0;n_buffers < FRAMEBUFFER_COUNT;n_buffers++){
110 |         CLEAR(buf);
111 |         buf.index = n_buffers;
112 |         buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
113 |         buf.memory = V4L2_MEMORY_MMAP;
114 | 
115 |         if(0 > ioctl(v4l2_fd, VIDIOC_QUERYBUF, &buf)){
116 |             qDebug("VIDIOC_QUERYBUF failed\n");
117 |             return;
118 |         }
119 | 
120 |         buffer_infos[n_buffers].length = buf.length;
121 |         buffer_infos[n_buffers].start  = mmap(NULL, buf.length,PROT_READ | PROT_WRITE, MAP_SHARED,v4l2_fd, buf.m.offset);
122 | 
123 |         if (MAP_FAILED == buffer_infos[n_buffers].start) {
124 |             qDebug("mmap error\n");
125 |             return;
126 |         }
127 |     }
128 |     qDebug("memory map success\n");
129 | 
130 |     /* 入队 */
131 |     for (buf.index = 0; buf.index < FRAMEBUFFER_COUNT; buf.index++) {
132 |         if (0 > ioctl(v4l2_fd, VIDIOC_QBUF, &buf)) {
133 |             qDebug("入队失败\n");
134 |             return;
135 |         }
136 |     }
137 | 
138 |     /* 开启视频流 */
139 |     type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
140 |     if (0 > ioctl(v4l2_fd, VIDIOC_STREAMON, &type)) {
141 |         qDebug("open stream failed\n");
142 |         return;
143 |     }
144 |     qDebug("open stream success\n");
145 | 
146 |     /* 获取帧数据 */
147 |     while(show_flag){
148 |         do{
149 |             /* 初始化select()来进行I/O端口复用 */
150 |             FD_ZERO(&fds);
151 |             FD_SET(v4l2_fd,&fds);
152 | 
153 |             /* TimeOut */
154 |             tv.tv_sec  = 2;
155 |             tv.tv_usec = 0;
156 | 
157 |             ret = select(v4l2_fd+1,&fds,NULL,NULL,&tv);
158 |         } while ((ret == -1) && (errno = EINTR));
159 | 
160 |         if(ret == -1){
161 |             qDebug("select I/O failed\n");
162 |             return;
163 |         }
164 | 
165 |         CLEAR(one_buf);
166 |         one_buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
167 |         one_buf.memory = V4L2_MEMORY_MMAP;
168 | 
169 |         /* 出队 */
170 |         if(0 > ioctl(v4l2_fd,VIDIOC_DQBUF,&one_buf)){
171 |             qDebug("出队失败\n");
172 |             return;
173 |         }
174 | 
175 |         try{
176 |             FrameBuffer frame;
177 |             v4l2_get_one_frame(&frame);
178 | 
179 |             QImage img_stream;
180 |             if(parent->isVisible()){
181 |                 img_stream.loadFromData(frame.buf,frame.length);
182 |                 parent->img = img_stream;
183 |                 parent->update();
184 |             }
185 | 
186 |         }catch(...){}
187 | 
188 |         /* 再次入队*/
189 |         if (0 > ioctl(v4l2_fd, VIDIOC_QBUF, &one_buf)) {
190 |             qDebug("入队失败\n");
191 |             return;
192 |         }
193 | 
194 |     }
195 |     qDebug("while done!\n");
196 | }
197 | 
198 | V4l2Thread::~V4l2Thread(){
199 | 
200 | }
201 | 
202 | void V4l2Thread::exit_show(){
203 |     try{
204 |         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
205 |         if (0 > ioctl(v4l2_fd, VIDIOC_STREAMOFF, &type)) {
206 |             qDebug("close stream failed\n");
207 |         }
208 |         for(int i = 0; i < FRAMEBUFFER_COUNT; i++){
209 |             munmap(buffer_infos[i].start,buffer_infos[i].length);
210 |         }
211 |     }catch(...){}
212 |     qDebug("exit show success\n");
213 | }
214 | 
215 | void V4l2Thread::v4l2_get_one_frame(FrameBuffer *framebuf){
216 |     memcpy(framebuf->buf,(char *)buffer_infos[one_buf.index].start,one_buf.bytesused);//bytesused 表示buf中已经使用的字节数
217 |     framebuf->length = one_buf.bytesused;
218 | }
219 | 


--------------------------------------------------------------------------------
/V4l2_QThread/v4l2_thread.h:
--------------------------------------------------------------------------------
 1 | #ifndef V4L2_THREAD_H
 2 | #define V4L2_THREAD_H
 3 | 
 4 | #include <QThread>
 5 | #include <QDebug>
 6 | #include <QCoreApplication>
 7 | #include <QMutex>
 8 | 
 9 | #include <stdio.h>
10 | #include <stdlib.h>
11 | #include <sys/types.h>
12 | #include <sys/stat.h>
13 | #include <fcntl.h>
14 | #include <unistd.h>
15 | #include <sys/ioctl.h>
16 | #include <string.h>
17 | #include <errno.h>
18 | #include <sys/mman.h>
19 | #include <sys/select.h>
20 | #include <sys/time.h>
21 | #include <linux/videodev2.h>
22 | #include <stdbool.h>
23 | #include <string>
24 | 
25 | #include "videoshow.h"
26 | 
27 | #define FRAMEBUFFER_COUNT 4
28 | #define PIXWIDTH    640
29 | #define PIXHEIGHT   480
30 | 
31 | #define CLEAR(x) memset(&(x), 0, sizeof(x))
32 | 
33 | /* 命名空间 */
34 | using namespace std;
35 | 
36 | class V4l2Thread : public QThread{
37 | public:
38 |     explicit V4l2Thread(QWidget *parent = 0);
39 |     ~V4l2Thread();
40 | 
41 |     /* 视频显示标志位信号 */
42 |     bool show_flag;
43 | 
44 |     videoshow *parent;
45 | 
46 |     /* v4l2结构体 */
47 |     struct v4l2_format              fmt;
48 |     struct v4l2_buffer              buf,one_buf;
49 |     struct v4l2_requestbuffers      reqbuf;
50 |     struct v4l2_capability          cap;
51 |     struct v4l2_fmtdesc             fmtdesc;
52 |     struct v4l2_frmsizeenum         frmsize;
53 |     struct v4l2_frmivalenum         frmival;
54 |     enum v4l2_buf_type              type;
55 |     fd_set                          fds;
56 |     struct timeval                  tv;
57 |     int                             ret, v4l2_fd;    //返回值ret和v4l2描述符v4l2_fd
58 |     unsigned int                    n_buffers;
59 |     string                          dev_name;
60 | 
61 |     /* buffer描述信息结构体 */
62 |     struct buffer_info {
63 |         void *start;
64 |         unsigned int length;
65 |     };
66 | 
67 |     /* 摄像头像素格式及其描述信息结构体 */
68 |     typedef struct camera_format {
69 |         unsigned char description[32];  //字符串描述信息
70 |         unsigned int pixelformat;       //像素格式
71 |     } cam_fmt;
72 | 
73 |     /* 帧描述信息结构体 */
74 |     typedef struct Frame_Buffer{
75 |         unsigned char buf[PIXHEIGHT*PIXWIDTH*3];
76 |         int length;
77 |     }FrameBuffer;
78 | 
79 | 
80 |     struct buffer_info *buffer_infos;
81 | 
82 |     cam_fmt cam_fmts[10];
83 | 
84 |     /* QThread 虚函数run */
85 |     void run();
86 | 
87 |     void exit_show();
88 | 
89 |     void v4l2_get_one_frame(FrameBuffer * framebuf);
90 | 
91 | };
92 | 
93 | #endif // V4L2_THREAD_H
94 | 


--------------------------------------------------------------------------------
/V4l2_QThread/videoshow.cpp:
--------------------------------------------------------------------------------
 1 | #include "videoshow.h"
 2 | 
 3 | videoshow::videoshow(QWidget *parent)
 4 |     : QWidget(parent)
 5 | {
 6 |     setAutoFillBackground(true);
 7 | }
 8 | 
 9 | void videoshow::paintEvent(QPaintEvent *){
10 |     try{
11 |         QPainter painter(this);
12 | 
13 |         if(!img.isNull()){
14 |             painter.drawImage(QPointF(0,0),img);
15 |         }
16 | 
17 |     }catch(...){}
18 | }
19 | 


--------------------------------------------------------------------------------
/V4l2_QThread/videoshow.h:
--------------------------------------------------------------------------------
 1 | #ifndef VIDEOSHOW_H
 2 | #define VIDEOSHOW_H
 3 | 
 4 | #include <QWidget>
 5 | #include <QPainter>
 6 | #include <QPointF>
 7 | 
 8 | class videoshow : public QWidget{
 9 |     Q_OBJECT
10 | 
11 | public:
12 |     explicit videoshow(QWidget *parent = 0);
13 | 
14 |     /* 显示的每帧图像 */
15 |     QImage img;
16 | 
17 |     /* 重写父类下的protected方法*/
18 | protected:
19 |     void paintEvent(QPaintEvent *);
20 | };
21 | 
22 | #endif // VIDEOSHOW_H
23 | 


--------------------------------------------------------------------------------
/jpeg_show_lcd.c:
--------------------------------------------------------------------------------
  1 | #include <stdio.h>
  2 | #include <stdlib.h>
  3 | #include <sys/types.h>
  4 | #include <sys/stat.h>
  5 | #include <fcntl.h>
  6 | #include <unistd.h>
  7 | #include <sys/ioctl.h>
  8 | #include <string.h>
  9 | #include <linux/fb.h>
 10 | #include <sys/mman.h>
 11 | #include <jpeglib.h>
 12 | 
 13 | static int width;                       //LCD X分辨率
 14 | static int height;                      //LCD Y分辨率
 15 | static unsigned char *screen_base = NULL;        //映射后的显存基地址
 16 | static unsigned int line_length;       //LCD一行的长度（字节为单位）
 17 | static unsigned int bpp;    //像素深度bpp
 18 | 
 19 | static int show_jpeg_image(const char *path)
 20 | {
 21 |     struct jpeg_decompress_struct cinfo;
 22 |     struct jpeg_error_mgr jerr;
 23 |     FILE *jpeg_file = NULL;
 24 |     unsigned char *jpeg_line_buf = NULL;     //行缓冲区:用于存储从jpeg文件中解压出来的一行图像数据
 25 |     unsigned char *fb_line_buf = NULL; //行缓冲区:用于存储写入到LCD显存的一行数据
 26 |     unsigned int min_h, min_w;
 27 |     unsigned int valid_bytes;   // 1 byte = 8 bit
 28 |     int i;
 29 | 
 30 |     //绑定默认错误处理函数
 31 |     cinfo.err = jpeg_std_error(&jerr);
 32 | 
 33 |     //打开.jpeg/.jpg图像文件
 34 |     jpeg_file = fopen(path, "r");   //只读方式打开
 35 |     if (NULL == jpeg_file) {
 36 |         perror("fopen error");
 37 |         return -1;
 38 |     }
 39 | 
 40 |     //创建JPEG解码对象
 41 |     jpeg_create_decompress(&cinfo);
 42 | 
 43 |     //指定图像文件
 44 |     jpeg_stdio_src(&cinfo, jpeg_file);
 45 | 
 46 |     //读取图像信息
 47 |     jpeg_read_header(&cinfo, TRUE);
 48 |     printf("原始jpeg图像大小: %d*%d,颜色通道数: %d\n", cinfo.image_width, cinfo.image_height,cinfo.num_components);
 49 | 
 50 |     //设置解码参数
 51 |     cinfo.out_color_space = JCS_RGB;//默认就是JCS_RGB
 52 | 
 53 |     //开始解码图像
 54 |     jpeg_start_decompress(&cinfo);
 55 |     printf("输出jpeg图像大小: %d*%d,jpeg图像颜色通道数: %d\n", cinfo.output_width, cinfo.output_height, cinfo.output_components);
 56 | 
 57 |     //为缓冲区分配内存空间
 58 |     jpeg_line_buf = malloc(cinfo.output_components * cinfo.output_width);
 59 |     fb_line_buf = malloc(cinfo.output_components * width);
 60 | 
 61 |     //判断图像和LCD屏那个的分辨率更低
 62 |     if (cinfo.output_width > width)
 63 |         min_w = width;
 64 |     else
 65 |         min_w = cinfo.output_width;
 66 | 
 67 |     if (cinfo.output_height > height)
 68 |         min_h = height;
 69 |     else
 70 |         min_h = cinfo.output_height;
 71 | 
 72 |     //读取数据
 73 |     valid_bytes = min_w * bpp / 8;//一行的有效字节数 表示真正写入到LCD显存的一行数据的大小
 74 |     while (cinfo.output_scanline < min_h) {
 75 | 
 76 |         jpeg_read_scanlines(&cinfo, &jpeg_line_buf, 1);//每次读取一行数据
 77 | 
 78 |         for (i = 0; i < (min_w * 3); i += 1)
 79 |             fb_line_buf[i] = jpeg_line_buf[i];
 80 | 
 81 |         memcpy(screen_base, fb_line_buf, valid_bytes);
 82 |         screen_base += line_length; //+line_length  定位到LCD下一行显存地址的起点
 83 |     }
 84 | 
 85 |     //解码完成
 86 |     jpeg_finish_decompress(&cinfo); //完成解码
 87 |     jpeg_destroy_decompress(&cinfo);//销毁JPEG解码对象、释放资源
 88 | 
 89 |     //关闭文件、释放内存
 90 |     fclose(jpeg_file);
 91 |     free(fb_line_buf);
 92 |     free(jpeg_line_buf);
 93 |     return 0;
 94 | }
 95 | 
 96 | int main(int argc, char *argv[])
 97 | {
 98 |     struct fb_var_screeninfo fb_var;
 99 |     unsigned int screen_size;
100 |     int fd;
101 | 
102 |     /* 传参校验 */
103 |     if (2 != argc) {
104 |         fprintf(stderr, "usage: %s <jpeg_file>\n", argv[0]);
105 |         exit(-1);
106 |     }
107 | 
108 |     /* 打开framebuffer设备 */
109 |     if (0 > (fd = open("/dev/fb0", O_RDWR))) {
110 |         perror("open error");
111 |         exit(EXIT_FAILURE);
112 |     }
113 | 
114 |     /* 获取参数信息 */
115 |     ioctl(fd, FBIOGET_VSCREENINFO, &fb_var);
116 | 
117 |     bpp = fb_var.bits_per_pixel;
118 |     width = fb_var.xres;
119 |     height = fb_var.yres;
120 |     line_length = width * bpp / 8;
121 |     screen_size = line_length * height;
122 | 
123 |     /* 将显示缓冲区映射到进程地址空间 */
124 |     screen_base = mmap(NULL, screen_size, PROT_WRITE, MAP_SHARED, fd, 0);
125 |     if (MAP_FAILED == (void *)screen_base) {
126 |         perror("mmap error");
127 |         close(fd);
128 |         exit(EXIT_FAILURE);
129 |     }
130 | 
131 |     /* 显示JPEG图片 */
132 |     memset(screen_base, 0xFF, screen_size);
133 |     show_jpeg_image(argv[1]);
134 | 
135 |     /* 退出 */
136 |     munmap(screen_base, screen_size);  //取消映射
137 |     close(fd);  //关闭文件
138 |     exit(EXIT_SUCCESS);    //退出进程
139 | }
140 | 


--------------------------------------------------------------------------------
/v4l2_cap_jpeg.c:
--------------------------------------------------------------------------------
  1 | /***************************************************************
  2 |  文件名 : v4l2_cap_jpeg.c
  3 |  作者 : Hammer
  4 |  版本 : V1.0
  5 |  描述 : V4L2摄像头采集JPEG图像
  6 |  日志 : 初版 V1.0 2022/06/01 Hammer创建
  7 |  ***************************************************************/
  8 | #include <stdio.h>
  9 | #include <stdlib.h>
 10 | #include <sys/types.h>
 11 | #include <sys/stat.h>
 12 | #include <fcntl.h>
 13 | #include <unistd.h>
 14 | #include <sys/ioctl.h>
 15 | #include <string.h>
 16 | #include <errno.h>
 17 | #include <sys/mman.h>
 18 | #include <linux/videodev2.h>
 19 | #include <linux/fb.h>
 20 | 
 21 | #define pixel_width  640
 22 | #define pixel_height 480
 23 | 
 24 | int main(int argc, char *argv[]){
 25 |     if (2 != argc) {
 26 |         fprintf(stderr, "Usage: %s <video_dev>\n", argv[0]);
 27 |         exit(EXIT_FAILURE);
 28 |     }
 29 |     struct v4l2_capability vcap = {0};
 30 |     // 打开设备
 31 |     int fd;
 32 |     fd = open(argv[1], O_RDWR);
 33 |     if(fd < 0){
 34 |         perror("video设备打开失败\n");
 35 |         return -1;
 36 |     }
 37 |     else{
 38 |         printf("video设备打开成功\n");
 39 |     }
 40 | 
 41 |     //查看设备是否为视频采集设备
 42 |     ioctl(fd, VIDIOC_QUERYCAP, &vcap);
 43 |     if (!(V4L2_CAP_VIDEO_CAPTURE & vcap.capabilities)) {
 44 |         perror("Error: No capture video device!\n");
 45 |         return -1;
 46 |     }
 47 | 
 48 |     // 枚举帧格式
 49 |     struct v4l2_fmtdesc fmtdesc;
 50 |     fmtdesc.index = 0;
 51 |     fmtdesc.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 52 |     printf("摄像头支持所有格式如下:\n");
 53 |     while(ioctl(fd,VIDIOC_ENUM_FMT,&fmtdesc) == 0){
 54 |         printf("v4l2_format%d:%s\n",fmtdesc.index,fmtdesc.description);
 55 |         fmtdesc.index++;
 56 |     }
 57 | 
 58 |     // 枚举分辨率
 59 |     struct v4l2_frmsizeenum frmsize;
 60 |     frmsize.index = 0;
 61 |     frmsize.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 62 |     printf("MJPEG格式支持所有分辨率如下:\n");
 63 |     // frmsize.pixel_format = V4L2_PIX_FMT_YUYV;
 64 |     frmsize.pixel_format = V4L2_PIX_FMT_MJPEG;
 65 |     while(ioctl(fd,VIDIOC_ENUM_FRAMESIZES,&frmsize) == 0){
 66 |         printf("frame_size<%d*%d>\n",frmsize.discrete.width,frmsize.discrete.height);
 67 |         frmsize.index++;
 68 |     }
 69 |     
 70 |     // 枚举某分辨率下的帧速率
 71 |     struct v4l2_frmivalenum frmival;
 72 |     frmival.index = 0;
 73 |     frmival.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 74 |     frmival.pixel_format = V4L2_PIX_FMT_MJPEG;
 75 |     frmival.width = pixel_width;
 76 |     frmival.height = pixel_height;
 77 |     while(ioctl(fd,VIDIOC_ENUM_FRAMEINTERVALS,&frmival) == 0){
 78 |         printf("frame_interval under frame_size <%d*%d> support %dfps\n",frmival.width,frmival.height,frmival.discrete.denominator / frmival.discrete.numerator);
 79 |         frmival.index++;
 80 |     }
 81 |  
 82 |     // 设置采集格式
 83 |     struct v4l2_format vfmt;
 84 |     vfmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 85 |     vfmt.fmt.pix.width = pixel_width;
 86 |     vfmt.fmt.pix.height = pixel_height;
 87 |     vfmt.fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
 88 |     if(ioctl(fd,VIDIOC_S_FMT,&vfmt) < 0){
 89 |         perror("设置格式失败\n");
 90 |         return -1;
 91 |     }
 92 |     // 检查设置参数是否生效
 93 |     if(ioctl(fd,VIDIOC_G_FMT,&vfmt) < 0){
 94 |         perror("获取设置格式失败\n");
 95 |         return -1;
 96 |     }
 97 |     else if(vfmt.fmt.pix.width == pixel_width && vfmt.fmt.pix.height == pixel_height && vfmt.fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG){
 98 |         printf("设置格式生效,实际分辨率大小<%d * %d>,图像格式:Motion-JPEG\n",vfmt.fmt.pix.width,vfmt.fmt.pix.height);
 99 |     }
100 |     else{
101 |         printf("设置格式未生效\n");
102 |     }
103 | 
104 |     // 获取帧信息
105 |     struct v4l2_streamparm streamparm;
106 |     streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
107 |     ioctl(fd, VIDIOC_G_PARM, &streamparm);
108 | 
109 |     if(V4L2_CAP_TIMEPERFRAME & streamparm.parm.capture.capability){
110 |         streamparm.parm.capture.timeperframe.numerator = 1;
111 |         streamparm.parm.capture.timeperframe.denominator = 30; //30fps     
112 |         if(ioctl(fd,VIDIOC_S_PARM, &streamparm) < 0){
113 |             printf("设置帧率失败\n");
114 |             return -1;
115 |         }
116 |     }
117 |     else printf("该摄像头不支持设置帧率\n");
118 | 
119 |     // 申请缓冲区空间
120 |     struct v4l2_requestbuffers reqbuf;
121 |     reqbuf.type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
122 |     reqbuf.count = 3;   //3个帧缓冲
123 |     reqbuf.memory = V4L2_MEMORY_MMAP;
124 |     if(ioctl(fd,VIDIOC_REQBUFS,&reqbuf) < 0){
125 |         perror("申请缓冲区失败\n");
126 |         return -1;
127 |     }
128 | 
129 |     // 将帧缓冲映射到进程地址空间
130 |     void *frm_base[3];  //映射后的用户空间的首地址
131 |     unsigned int frm_size[3];
132 | 
133 |     struct v4l2_buffer buf;
134 |     buf.type   = V4L2_BUF_TYPE_VIDEO_CAPTURE;
135 |     buf.memory = V4L2_MEMORY_MMAP;
136 |     // 将每一帧对应的缓冲区的起始地址保存在frm_base数组中，读取采集数据时，只需直接读取映射区即可
137 |     for(buf.index=0;buf.index<3;buf.index++){
138 |         ioctl(fd, VIDIOC_QUERYBUF, &buf);
139 |         frm_base[buf.index] = mmap(NULL,buf.length,PROT_READ | PROT_WRITE,MAP_SHARED,fd,buf.m.offset);
140 |         frm_size[buf.index] = buf.length;
141 | 
142 |         if(frm_base[buf.index] == MAP_FAILED){
143 |             perror("mmap failed\n");
144 |             return -1;
145 |         }
146 | 
147 |         // 入队操作
148 |         if(ioctl(fd,VIDIOC_QBUF,&buf) < 0){
149 |             perror("入队失败\n");
150 |             return -1;
151 |         }
152 |     }
153 | 
154 |     // 开始采集
155 |     enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
156 |     if (ioctl(fd, VIDIOC_STREAMON, &type) < 0){
157 |         perror("开始采集失败\n");
158 |         return -1;
159 |     }
160 |     
161 |     // 读取帧
162 |     struct v4l2_buffer  readbuffer;
163 |     readbuffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
164 |     readbuffer.memory = V4L2_MEMORY_MMAP;
165 |     if(ioctl(fd, VIDIOC_DQBUF, &readbuffer) < 0){
166 |         perror("读取帧失败\n");
167 |     }
168 | 
169 |     // 保存这一帧，格式为jpg
170 |     FILE *file = fopen("v4l2_cap.jpg","w+");
171 |     fwrite(frm_base[readbuffer.index],buf.length,1,file);
172 |     fclose(file);
173 | 
174 |     // 再次入队
175 |     if(ioctl(fd,VIDIOC_QBUF,&readbuffer) < 0){
176 |         perror("入队失败\n");
177 |     }
178 | 
179 |     // 停止采集
180 |     if (ioctl(fd, VIDIOC_STREAMOFF, &type) < 0){
181 |         perror("停止采集失败\n");
182 |         return -1;
183 |     }
184 | 
185 |     // 释放映射
186 |     for(int i=0;i<3;i++){
187 |         munmap(frm_base[i],frm_size[i]);
188 |     }
189 | 
190 |     close(fd);
191 |     return 0;
192 | }
193 | 


--------------------------------------------------------------------------------