├── resources └── icons │ ├── pause.png │ ├── play.png │ └── fullscreen.png ├── qml.qrc ├── deployment.pri ├── .gitignore ├── QtQuickPlayer.pro ├── gst_bus_poller.h ├── interaction_controller.h ├── README.md ├── interaction_controller.cpp ├── gst_bus_poller.cpp ├── main.cpp ├── main.qml └── LICENSE /resources/icons/pause.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ivasilev/QtQuickPlayer/HEAD/resources/icons/pause.png -------------------------------------------------------------------------------- /resources/icons/play.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ivasilev/QtQuickPlayer/HEAD/resources/icons/play.png -------------------------------------------------------------------------------- /resources/icons/fullscreen.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ivasilev/QtQuickPlayer/HEAD/resources/icons/fullscreen.png -------------------------------------------------------------------------------- /qml.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | main.qml 4 | resources/icons/play.png 5 | resources/icons/pause.png 6 | resources/icons/fullscreen.png 7 | 8 | 9 | -------------------------------------------------------------------------------- /deployment.pri: -------------------------------------------------------------------------------- 1 | unix:!android { 2 | isEmpty(target.path) { 3 | qnx { 4 | target.path = /tmp/$${TARGET}/bin 5 | } else { 6 | target.path = /opt/$${TARGET}/bin 7 | } 8 | export(target.path) 9 | } 10 | INSTALLS += target 11 | } 12 | 13 | export(INSTALLS) 14 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # C++ objects and libs 2 | 3 | *.slo 4 | *.lo 5 | *.o 6 | *.a 7 | *.la 8 | *.lai 9 | *.so 10 | *.dll 11 | *.dylib 12 | 13 | # Qt-es 14 | 15 | /.qmake.cache 16 | /.qmake.stash 17 | *.pro.user 18 | *.pro.user.* 19 | *.qbs.user 20 | *.qbs.user.* 21 | *.moc 22 | moc_*.cpp 23 | qrc_*.cpp 24 | ui_*.h 25 | Makefile* 26 | *build-* 27 | 28 | # QtCreator 29 | 30 | *.autosave 31 | 32 | # QtCtreator Qml 33 | *.qmlproject.user 34 | *.qmlproject.user.* 35 | 36 | # QtCtreator CMake 37 | CMakeLists.txt.user 38 | 39 | -------------------------------------------------------------------------------- /QtQuickPlayer.pro: -------------------------------------------------------------------------------- 1 | TEMPLATE = app 2 | 3 | QT += qml quick opengl widgets 4 | CONFIG += c++11 5 | 6 | DEFINES += GST_USE_UNSTABLE_API 7 | 8 | SOURCES += main.cpp \ 9 | interaction_controller.cpp \ 10 | gst_bus_poller.cpp 11 | 12 | RESOURCES += qml.qrc 13 | 14 | # Additional import path used to resolve QML modules in Qt Creator's code model 15 | QML_IMPORT_PATH = 16 | 17 | # Default rules for deployment. 18 | include(deployment.pri) 19 | 20 | # not tested (yet) 21 | unix:!macx { 22 | QT_CONFIG -= no-pkg-config 23 | CONFIG += link_pkgconfig 24 | PKGCONFIG = \ 25 | gstreamer-1.0 26 | } 27 | 28 | macx { 29 | INCLUDEPATH += /opt/local/include/gstreamer-1.0 /opt/local/lib/gstreamer-1.0/include 30 | INCLUDEPATH += /opt/local/include/glib-2.0 /opt/local/lib/glib-2.0/include /opt/local/include 31 | 32 | LIBS += \ 33 | -framework AppKit \ 34 | -F/Library/Frameworks \ 35 | -L/opt/local/lib \ 36 | -L/opt/local/lib/gstreamer-1.0 \ 37 | -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0 -lintl 38 | } 39 | 40 | HEADERS += \ 41 | interaction_controller.h \ 42 | gst_bus_poller.h 43 | 44 | 45 | -------------------------------------------------------------------------------- /gst_bus_poller.h: -------------------------------------------------------------------------------- 1 | //============================================================================== 2 | // Project: QtQuickPlayer 3 | // Author: Ivan Vasilev 4 | // 5 | // A simple application demostrating QtQuick(QML) integration with gstreamer 6 | // 7 | // gst_bus_poller.h - a class to periodically pop messages from a gstreamer 8 | // bus. nominal use case is 9 | // GstElement *pipeline = gst_pipeline_new ("playpipeline"); 10 | // playPipelinePoller = new GstBusPoller(gst_pipeline_get_bus(GST_PIPELINE (pipeline)), "playPipelinePoller"); 11 | // 12 | //============================================================================== 13 | 14 | #ifndef GSTBUSPOLLER_H 15 | #define GSTBUSPOLLER_H 16 | 17 | //============================================================================== 18 | // Includes 19 | //============================================================================== 20 | 21 | // QT Includes 22 | #include 23 | #include 24 | #include 25 | #include 26 | 27 | // gstreamer includes 28 | #include "gst/gst.h" 29 | 30 | class GstBusPoller : public QObject 31 | { 32 | public: 33 | GstBusPoller(GstBus *bus, QString name); 34 | ~GstBusPoller(); 35 | 36 | private: 37 | QString m_Name; 38 | GstBus * m_Bus; 39 | QBasicTimer m_Timer; 40 | 41 | virtual void timerEvent(QTimerEvent *event); 42 | }; 43 | 44 | #endif // GSTBUSPOLLER_H 45 | -------------------------------------------------------------------------------- /interaction_controller.h: -------------------------------------------------------------------------------- 1 | //============================================================================== 2 | // Project: QtQuickPlayer 3 | // Author: Ivan Vasilev 4 | // 5 | // A simple application demostrating QtQuick(QML) integration with gstreamer 6 | // 7 | // interaction_controller.h - a class to handle QML<-->C++ interaction - 8 | // mainly responding to user commands for now 9 | // 10 | //============================================================================== 11 | #ifndef INTERACTIONCONTROLLER_H 12 | #define INTERACTIONCONTROLLER_H 13 | 14 | 15 | //============================================================================== 16 | // Includes 17 | //============================================================================== 18 | #include 19 | #include 20 | #include 21 | 22 | #include "gst/gst.h" 23 | 24 | class InteractionController : public QObject 25 | { 26 | Q_OBJECT 27 | public: 28 | explicit InteractionController(QObject *window, GstElement* gstPlayer, bool autoplay); 29 | ~InteractionController(); 30 | 31 | signals: 32 | // none at that point 33 | 34 | public slots: 35 | void PlayPauseSlot(); // triggered when the user presses the play/pause control 36 | void FullScreenSlot(); // triggered when the user presses the fullscreen control 37 | 38 | private: 39 | GstElement* m_GstPlayer; 40 | QQuickItem* m_PlayPauseControl; 41 | 42 | }; 43 | 44 | #endif // INTERACTIONCONTROLLER_H 45 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # QtQuickPlayer 2 | =============== 3 | A simple application demonstrating integration of gstreamer witin QML/QtQuick. 4 | Uses qmlglsink from gst-plugins-bad to render video inside a QML application 5 | 6 | # Prerequisites 7 | 8 | Qt5, gstreamer, gstreamer-plugins-bad, possibly others. On Mac OS X w/macports 9 | ``` 10 | sudo port install qt5 qt5-creator \ 11 | gstreamer1 gstreamer1-gst-libav gstreamer1-gst-plugins-good 12 | sudo port install -k gstreamer1-gst-plugins-bad +qt (*) 13 | ``` 14 | 15 | gst-plugins-bad requires special attention. 16 | 17 | First, macports needs to include qt support, which is accomplished specifying 18 | +qt as a variant. 19 | 20 | Second, qmlglsink is broken in gst-plugins-bad 1.8.2 so it needs to be patched 21 | around a little. This could be done by telling macports to leave the build 22 | folder after it is complete, using the -k switch, then manually patching the 23 | source and rebuilding libgstqtsink.so: 24 | 25 | ``` 26 | cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gnome_gstreamer1-gst-plugins-bad/gstreamer1-gst-plugins-bad/work/gst-plugins-bad-1.8.2/ext/qt 27 | sudo sed -i '' 's/GST_GL_HAVE_PLATFORM_COCOA//' qtitem.cc 28 | sudo make 29 | sudo cp .libs/libgstqtsink.so /opt/local/lib/gstreamer-1.0/libgstqtsink.so 30 | ``` 31 | 32 | If build fails finding gstgldisplay_cocoa.h, adjust it's path like so: 33 | ``` 34 | -#include 35 | +#include "../../gst-libs/gst/gl/cocoa/gstgldisplay_cocoa.h" 36 | ``` 37 | 38 | This seems to have already been fixed in upstream gstreamer-1.9.1 and hopefully 39 | this workaround will not be necessary in the future. 40 | 41 | # Building 42 | 43 | If all the prerequisites are correctly installed, just do: 44 | ``` 45 | qmake 46 | make 47 | ``` 48 | Execute and enjoy ;) 49 | 50 | -------------------------------------------------------------------------------- /interaction_controller.cpp: -------------------------------------------------------------------------------- 1 | //============================================================================== 2 | // Project: QtQuickPlayer 3 | // Author: Ivan Vasilev 4 | // 5 | // A simple application demostrating QtQuick(QML) integration with gstreamer 6 | // 7 | // interaction_controller.cpp - a class to handle QML<-->C++ interaction - 8 | // mainly responding to user commands for now 9 | // 10 | //============================================================================== 11 | 12 | //============================================================================== 13 | // Includes 14 | //============================================================================== 15 | #include "interaction_controller.h" 16 | 17 | //============================================================================== 18 | // InteractionController Exported methods 19 | //============================================================================== 20 | InteractionController::InteractionController(QObject *window, GstElement* gstPlayer, bool autoplay) : 21 | QObject(window), 22 | m_GstPlayer(gstPlayer) 23 | { 24 | Q_ASSERT(NULL != m_GstPlayer); 25 | gst_object_ref(m_GstPlayer); 26 | 27 | // set-up Signal->Slot connections 28 | m_PlayPauseControl = parent()->findChild("playPauseControl"); 29 | Q_ASSERT(NULL != m_PlayPauseControl); 30 | QObject::connect(m_PlayPauseControl, SIGNAL(playStateChanged()), this, SLOT(PlayPauseSlot())); 31 | 32 | QQuickItem * fullscreenControl = parent()->findChild("fullscreenControl"); 33 | Q_ASSERT(NULL != fullscreenControl); 34 | QObject::connect(fullscreenControl, SIGNAL(fullScreenClicked()), this, SLOT(FullScreenSlot())); 35 | 36 | if (true == autoplay) 37 | { 38 | QMetaObject::invokeMethod(m_PlayPauseControl, "play"); 39 | } 40 | } 41 | 42 | InteractionController::~InteractionController() { 43 | // clean up when the window(our parent) is closed 44 | gst_element_set_state(m_GstPlayer, GST_STATE_NULL); 45 | gst_object_unref(m_GstPlayer); 46 | } 47 | 48 | void InteractionController::PlayPauseSlot() { 49 | 50 | if (true == m_PlayPauseControl->property("playing")) { 51 | qDebug("playing..."); 52 | gst_element_set_state(m_GstPlayer, GST_STATE_PLAYING); 53 | } else { 54 | qDebug("pausing..."); 55 | gst_element_set_state(m_GstPlayer, GST_STATE_PAUSED); 56 | } 57 | } 58 | 59 | void InteractionController::FullScreenSlot() { 60 | qDebug("entering fullscreen..."); 61 | if (QQuickWindow::FullScreen != ((QQuickWindow *)parent())->visibility()) { 62 | ((QQuickWindow *)parent())->showFullScreen(); 63 | } else { 64 | ((QQuickWindow *)parent())->showNormal(); 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /gst_bus_poller.cpp: -------------------------------------------------------------------------------- 1 | //============================================================================== 2 | // Project: QtQuickPlayer 3 | // Author: Ivan Vasilev 4 | // 5 | // A simple application demostrating QtQuick(QML) integration with gstreamer 6 | // 7 | // gst_bus_poller.cpp - a class to periodically pop messages from a gstreamer bsu 8 | // bus. Doesn't do much right now except printing error messages 9 | //============================================================================== 10 | 11 | //============================================================================== 12 | // Includes 13 | //============================================================================== 14 | #include "gst_bus_poller.h" 15 | 16 | //============================================================================== 17 | // GstBusPoller Exported methods 18 | //============================================================================== 19 | GstBusPoller::GstBusPoller(GstBus *bus, QString name) : QObject(), m_Name(name), m_Bus(bus) 20 | { 21 | g_object_ref(m_Bus); 22 | m_Timer.start(10, this); 23 | } 24 | 25 | GstBusPoller::~GstBusPoller() 26 | { 27 | g_object_unref(m_Bus); 28 | m_Timer.stop(); 29 | } 30 | 31 | //============================================================================== 32 | // GstBusPoller private methods 33 | //============================================================================== 34 | void GstBusPoller::timerEvent(QTimerEvent *event) 35 | { 36 | if (event->timerId() == m_Timer.timerId()) { 37 | GstMessage *message; 38 | gst_object_ref(m_Bus); 39 | 40 | while (NULL != (message = gst_bus_pop(m_Bus))) 41 | { 42 | switch (GST_MESSAGE_TYPE (message)) 43 | { 44 | case GST_MESSAGE_ERROR: 45 | { 46 | GError *err = NULL; 47 | gchar *dbg_info = NULL; 48 | 49 | gst_message_parse_error(message, &err, &dbg_info); 50 | g_printerr("%s:ERROR from element %s: %s\r\n", m_Name.toLatin1().data(), GST_OBJECT_NAME (message->src), err->message); 51 | g_printerr("%s:Debugging info: %s\r\n", m_Name.toLatin1().data(), (dbg_info) ? dbg_info : "none"); 52 | g_error_free(err); 53 | g_free(dbg_info); 54 | break; 55 | } 56 | default: 57 | g_printerr("%s: Got Message with type: %s\r\n", m_Name.toLatin1().data(), gst_message_type_get_name(GST_MESSAGE_TYPE(message))); 58 | break; 59 | } 60 | } 61 | gst_object_unref(m_Bus); 62 | } 63 | else 64 | { 65 | QObject::timerEvent(event); 66 | } 67 | } 68 | -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | //============================================================================== 2 | // Project: QtQuickPlayer 3 | // Author: Ivan Vasilev 4 | // 5 | // A simple application demostrating QtQuick(QML) integration with gstreamer 6 | // 7 | // main.cpp - main application entry point. Gstreamer setup happens here for 8 | // now, but should probably be moved to a separate location if it gets too big 9 | // 10 | //============================================================================== 11 | 12 | //============================================================================== 13 | // Includes 14 | //============================================================================== 15 | 16 | // QT includes 17 | #include 18 | #include 19 | #include 20 | #include 21 | #include 22 | #include 23 | 24 | // gstreamer includes 25 | #include "gst/gst.h" 26 | 27 | // application includes 28 | #include "gst_bus_poller.h" 29 | #include "interaction_controller.h" 30 | 31 | //============================================================================== 32 | // Defines 33 | //============================================================================== 34 | #define VIDEO_URI "http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4" 35 | #define AUTOPLAY true 36 | 37 | #define GST_DEBUG_LEVEL "1,2,3" // print important gstreamer messages on stderr 38 | 39 | //============================================================================== 40 | // Main entry point 41 | //============================================================================== 42 | int main(int argc, char *argv[]) 43 | { 44 | int ret; 45 | InteractionController * interactionController; 46 | GstBusPoller * srcPipelinePoller; 47 | 48 | #if defined(GST_DEBUG_LEVEL) 49 | setenv("GST_DEBUG", GST_DEBUG_LEVEL, 1); 50 | #endif 51 | 52 | QGuiApplication app(argc, argv); 53 | 54 | // Initialize gstreamer 55 | gst_init (&argc, &argv); 56 | 57 | // create source 58 | GstElement *src = gst_element_factory_make("playbin", "playbin"); 59 | g_object_set(src, "uri", VIDEO_URI , NULL); 60 | 61 | // we're not using gst_main_loop but it's a good idea to pop the messages 62 | // manually so that we have an idea of what's happening on the gstreamer 63 | // side of the fence. Attach a poller to src to get events from it's bus 64 | GstBus *srcBus = gst_element_get_bus(src); 65 | if (NULL != srcBus) { 66 | srcPipelinePoller = new GstBusPoller(srcBus, "srcPipelinePoller"); 67 | } 68 | 69 | // the qmlglsink plugin must be loaded before loading the qml file to 70 | // register the GstGLVideoItem qml item - see 71 | // https://bugzilla.gnome.org/show_bug.cgi?id=756082 72 | GstElement *sink = gst_element_factory_make ("qmlglsink", NULL); 73 | GstElement *sinkbin = gst_element_factory_make ("glsinkbin", NULL); 74 | 75 | g_assert (src && sink && sinkbin); 76 | 77 | // connect sinks together 78 | g_object_set (sinkbin, "sink", sink, NULL); 79 | g_object_unref (sink); 80 | 81 | g_object_set(src, "video-sink", sinkbin, NULL); 82 | g_object_unref(sinkbin); 83 | 84 | // instantiate Qml app engine 85 | QQmlApplicationEngine engine; 86 | engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); 87 | 88 | // setup qmlGlSink 89 | QQuickItem *videoItem; 90 | QQuickWindow *rootObject; 91 | 92 | // find and set the videoItem on the sink 93 | rootObject = static_cast(engine.rootObjects().first()); 94 | videoItem = rootObject->findChild("videoItem"); 95 | g_assert (videoItem); 96 | g_object_set(sink, "widget", videoItem, NULL); 97 | 98 | // set in in motion 99 | interactionController = new InteractionController(rootObject, src, AUTOPLAY); 100 | g_assert(interactionController); 101 | 102 | ret = app.exec(); 103 | 104 | // clean-up. interactionController will unref src which in turn is the only 105 | // one holding references to sink&sinkbin 106 | delete interactionController; 107 | if (NULL != srcPipelinePoller) delete srcPipelinePoller; 108 | gst_deinit (); 109 | 110 | return ret; 111 | } 112 | -------------------------------------------------------------------------------- /main.qml: -------------------------------------------------------------------------------- 1 | import QtQuick 2.4 2 | import QtQuick.Controls 1.1 3 | import QtQuick.Controls.Styles 1.3 4 | import QtQuick.Dialogs 1.2 5 | import QtQuick.Window 2.1 6 | 7 | import org.freedesktop.gstreamer.GLVideoItem 1.0 8 | 9 | ApplicationWindow { 10 | id: window 11 | visible: true 12 | width: 640 13 | height: 480 14 | x: 30 15 | y: 30 16 | color: "black" 17 | 18 | Item { 19 | anchors.fill: parent 20 | 21 | GstGLVideoItem { 22 | id: videoItem 23 | objectName: "videoItem" 24 | anchors.centerIn: parent 25 | width: parent.width 26 | height: parent.height 27 | } 28 | } 29 | 30 | Item { 31 | id: fullscreenControl 32 | objectName: "fullscreenControl" 33 | width: window.width / 12 34 | height: window.height / 12 35 | anchors.bottom: parent.bottom 36 | anchors.right: parent.right 37 | 38 | signal fullScreenClicked() 39 | 40 | Image { 41 | id: fullscreenPicture 42 | visible: true 43 | anchors.fill: parent 44 | fillMode: Image.PreserveAspectFit 45 | source: "resources/icons/fullscreen.png" 46 | 47 | Component.onCompleted: { 48 | fullscreenHidetimer.start() 49 | } 50 | 51 | Behavior on opacity { 52 | NumberAnimation { properties:"opacity"; duration: 500 } 53 | } 54 | } 55 | 56 | MouseArea { 57 | id: fullscreenMouseArea 58 | anchors.fill: fullscreenPicture 59 | hoverEnabled: true 60 | 61 | onExited: { 62 | fullscreenHidetimer.start() 63 | } 64 | 65 | onEntered: { 66 | fullscreenHidetimer.stop() 67 | fullscreenPicture.opacity = 1 68 | } 69 | 70 | onClicked: { 71 | fullscreenControl.fullScreenClicked(); 72 | fullscreenPicture.opacity = 0; 73 | } 74 | } 75 | 76 | Timer { 77 | id: fullscreenHidetimer 78 | interval: 5000 79 | onTriggered: { 80 | if (!fullscreenMouseArea.containsMouse) { 81 | fullscreenPicture.opacity = 0 82 | } 83 | stop() 84 | } 85 | } 86 | 87 | 88 | } 89 | 90 | Item { 91 | id: playPauseControl 92 | objectName: "playPauseControl" 93 | anchors.centerIn: parent 94 | width: parent.width / 4 95 | height: parent.height / 4 96 | 97 | property bool playing: false 98 | signal playStateChanged() 99 | 100 | function play() { 101 | playPauseControl.playing = true 102 | playPausePicture.source = "resources/icons/pause.png" 103 | playStateChanged() 104 | } 105 | 106 | function pause() { 107 | playPauseControl.playing = false 108 | playPausePicture.source = "resources/icons/play.png" 109 | playStateChanged() 110 | } 111 | 112 | function toggle() { 113 | if (true == playPauseControl.playing) { 114 | pause() 115 | } else { 116 | play() 117 | } 118 | } 119 | 120 | Image { 121 | id: playPausePicture 122 | visible: true 123 | anchors.fill: parent 124 | fillMode: Image.PreserveAspectFit 125 | source: "resources/icons/play.png" 126 | 127 | // the order of onComplete calls is undefined in QML, so call play() once we know that the image is present 128 | Component.onCompleted: { 129 | playHideTimer.start() 130 | } 131 | 132 | Behavior on opacity { 133 | NumberAnimation { properties:"opacity"; duration: 500 } 134 | } 135 | } 136 | 137 | MouseArea { 138 | id: playpauseMouseArea 139 | anchors.fill: parent 140 | hoverEnabled: true 141 | 142 | onExited: { 143 | playHideTimer.start() 144 | } 145 | 146 | onEntered: { 147 | playHideTimer.stop() 148 | playPausePicture.opacity = 1 149 | } 150 | 151 | onClicked: { 152 | playHideTimer.stop() 153 | playPauseControl.toggle() 154 | playPausePicture.opacity = 1 155 | } 156 | } 157 | 158 | Timer { 159 | id: playHideTimer 160 | interval: 5000 161 | onTriggered: { 162 | if (!playpauseMouseArea.containsMouse) { 163 | playPausePicture.opacity = 0 164 | } 165 | stop() 166 | } 167 | } 168 | } 169 | } 170 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------