相关资料
https://blog.csdn.net/FreeSouthS/article/details/118764606
https://www.cnblogs.com/k5bg/p/13813070.html
我没实现，不知道是不是我用的osg库中没有这个插件
实例代码
.pro
1 QT += core gui widgets 2 QT += opengl 3 TARGET = TestOsgQt 4 TEMPLATE = app 5 DEFINES += QT_DEPRECATED_WARNINGS 6 7 QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO 8 QMAKE_LFLAGS_RELEASE = $$QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO 9 10 11 CONFIG += c++11 12 13 SOURCES += \ 14 main.cpp 15 16 HEADERS += 17 18 OsgDir = D:\\Gitee\\osg365R 19 CONFIG(release, debug|release) { 20 LIBS += -L$${OsgDir}/lib/ -losgDB -losgViewer -lOpenThreads -losgAnimation -losg \ 21 -losgEarth -losgEarthAnnotation -losgEarthFeatures -losgEarthSymbology -losgEarthUtil \ 22 -losgQOpenGL -losgUtil -losgText -losgTerrain -losgSim \ 23 -losgShadow -losgParticle -losgManipulator -losgGA -losgFX \ 24 -losgWidget 25 } else { 26 LIBS += -L$${OsgDir}/debug/lib/ -losgDBd -losgViewerd -lOpenThreadsd -losgAnimationd -losgd \ 27 -losgEarthd -losgEarthAnnotationd -losgEarthFeaturesd -losgEarthSymbologyd -losgEarthUtild \ 28 -losgQOpenGLd -losgUtild -losgTextd -losgTerraind -losgSimd \ 29 -losgShadowd -losgParticled -losgManipulatord -losgGAd -losgFXd \ 30 } 31 32 LIBS += -lOpenGL32 33 LIBS += -lGlU32 34 35 INCLUDEPATH += $${OsgDir}/include 36 DEPENDPATH += $${OsgDir}/include
main.cpp
1 #include <osgViewer/Viewer> 2 #include <osgDB/ReadFile> 3 #include <osg/Geode> 4 #include <osg/ImageStream> 5 #include <osg/Texture2D> 6 7 osg::Node* createAPlane() 8 { 9 osg::Geode* gnode = new osg::Geode; 10 gnode->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF|osg::StateAttribute::OVERRIDE); 11 12 osg::Geometry* geom = new osg::Geometry; 13 gnode->addDrawable(geom); 14 15 //顶点 16 osg::Vec3Array* vertex = new osg::Vec3Array; 17 geom->setVertexArray(vertex); 18 19 //纹理 20 osg::Vec2Array* coord = new osg::Vec2Array; 21 geom->setTexCoordArray(0, coord); 22 23 //压入四个顶点构成一个面，我这个视频是1260x788的，比例很奇葩 24 vertex->push_back(osg::Vec3(0.0, 0.0, 0.0)); 25 coord->push_back(osg::Vec2(0.0, 0.0)); 26 27 vertex->push_back(osg::Vec3(1920.0, 0.0, 0.0)); 28 coord->push_back(osg::Vec2(1.0, 0.0)); 29 30 vertex->push_back(osg::Vec3(1920.0, 0.0, 1080.0)); 31 coord->push_back(osg::Vec2(1.0, 1.0)); 32 33 vertex->push_back(osg::Vec3(0.0, 0.0, 1080.0)); 34 coord->push_back(osg::Vec2(0.0, 1.0)); 35 36 geom->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, 4)); 37 38 //读取纹理 39 osgDB::Registry::instance()->addFileExtensionAlias("mp4", "ffmpeg"); 40 osg::Image* image = osgDB::readImageFile("D:/Gitee/OsgTestQt/src/No29/1.mp4"); 41 42 //转换成图片流，然后播放 43 osg::ImageStream* imagestream = dynamic_cast<osg::ImageStream*>(image); 44 if (imagestream) 45 { 46 imagestream->play(); 47 } 48 49 osg::Texture2D* texture = new osg::Texture2D(image); 50 texture->setResizeNonPowerOfTwoHint(false); 51 texture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR); 52 texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); 53 texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); 54 55 geom->getOrCreateStateSet()->setTextureAttributeAndModes(0, 56 texture, 57 osg::StateAttribute::ON); 58 59 return gnode; 60 } 61 62 int main() 63 { 64 osgViewer::Viewer viewer; 65 viewer.setSceneData(createAPlane()); 66 return viewer.run(); 67 }
