OggTheora
vtk-examples/Cxx/Video/OggTheora
Description¶
can't find vtkoggtheora
Other languages
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Question
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Code¶
OggTheora.cxx
#include <vtkImageCanvasSource2D.h>
#include <vtkNew.h>
#include <vtkOggTheoraWriter.h>
int main(int argc, char* argv[])
{
vtkNew<vtkImageCanvasSource2D> source;
source->SetScalarTypeToUnsignedChar();
source->SetNumberOfScalarComponents(3);
source->SetExtent(0, 100, 0, 100, 0, 0);
vtkNew<vtkOggTheoraWriter> writer;
writer->SetInputConnection(source->GetOutputPort());
writer->SetFileName("test.avi");
writer->Start();
for (unsigned int i = 0; i < 100; i++)
{
source->SetDrawColor(0, 0, 0, 1); // black
source->FillBox(0, 100, 0, 100); // clear image
source->SetDrawColor(255, 0, 0, 1); // red
source->FillBox(i, 20, 10, 20);
source->Update();
writer->Write();
}
writer->End();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(OggTheora)
find_package(VTK COMPONENTS
vtkCommonCore
vtkIOOggTheora
vtkImagingSources
QUIET
)
if (NOT VTK_FOUND)
message("Skipping OggTheora: ${VTK_NOT_FOUND_MESSAGE}")
return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
# old system
include(${VTK_USE_FILE})
add_executable(OggTheora MACOSX_BUNDLE OggTheora.cxx )
target_link_libraries(OggTheora PRIVATE ${VTK_LIBRARIES})
else ()
# include all components
add_executable(OggTheora MACOSX_BUNDLE OggTheora.cxx )
target_link_libraries(OggTheora PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS OggTheora
MODULES ${VTK_LIBRARIES}
)
endif ()
Download and Build OggTheora¶
Click here to download OggTheora and its CMakeLists.txt file. Once the tarball OggTheora.tar has been downloaded and extracted,
cd OggTheora/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./OggTheora
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.