OpenCVでGStreamerを使いたいが、デフォルトでインストールされていないケースがあります。
OpenCVが昨今で色んなインストール方法があるためです。
opencv-python、python3-opencv、OpenCVの環境を調査してみました。
OpenCVでGStreamerがインストールされている環境のメモ
OpenCVでGStreamerを使いたいが、デフォルトでインストールされていないケースがあります。
OpenCVがインストール方法があるためです。
opencv-python、python3-opencv、OpenCVのGStreamer環境を調査したメモです。
下記結果となりました。
- opencv-python …インストールされていない
- python3-opencv …インストールされている
- OpenCV …インストールされている(環境次第)
テスト環境と各環境でopencvのビルド情報を貼り付けておきます。
テスト環境
ラズパイ4でテストしています。
環境を整えて、ビルド情報をprintしてるだけのテストです。
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import cv2 # Retrieve OpenCV build information build_info = cv2.getBuildInformation() # Print the GStreamer related information print(build_info) |
またラズパイでも強制的にpipを使えるように下記ファイルを編集しています。
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sudo apt-get install vim sudo vim /etc/pip.conf #add: break-system-packages = true sudo pip3 install -U pip |
opencv-python
opencv-pythonはデフォルトではインストールされていませんでした。
GStreamer: NO
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1 |
sudo pip3 install opencv-python |
ビルド情報を貼り付けたものです。
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General configuration for OpenCV 4.10.0 ===================================== Version control: 4.10.0-dirty Platform: Timestamp: 2024-06-17T18:00:16Z Host: Linux 5.3.0-28-generic aarch64 CMake: 3.29.5 CMake generator: Unix Makefiles CMake build tool: /bin/gmake Configuration: Release CPU/HW features: Baseline: NEON FP16 Dispatched code generation: NEON_DOTPROD NEON_FP16 NEON_BF16 requested: NEON_FP16 NEON_BF16 NEON_DOTPROD NEON_DOTPROD (1 files): + NEON_DOTPROD NEON_FP16 (2 files): + NEON_FP16 NEON_BF16 (0 files): + NEON_BF16 C/C++: Built as dynamic libs?: NO C++ standard: 11 C++ Compiler: /opt/rh/devtoolset-10/root/usr/bin/c++ (ver 10.2.1) C++ flags (Release): -Wl,-strip-all -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG C++ flags (Debug): -Wl,-strip-all -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG C Compiler: /opt/rh/devtoolset-10/root/usr/bin/cc C flags (Release): -Wl,-strip-all -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG C flags (Debug): -Wl,-strip-all -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG Linker flags (Release): -L/ffmpeg_build/lib -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined Linker flags (Debug): -L/ffmpeg_build/lib -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined ccache: YES Precompiled headers: NO Extra dependencies: /lib64/libopenblas.so Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Test Qt5::Concurrent /usr/local/lib/libpng.so /lib64/libz.so dl m pthread rt 3rdparty dependencies: libprotobuf ade ittnotify libjpeg-turbo libwebp libtiff libopenjp2 IlmImf tegra_hal OpenCV modules: To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio Disabled: world Disabled by dependency: - Unavailable: java python2 ts Applications: - Documentation: NO Non-free algorithms: NO GUI: QT5 QT: YES (ver 5.15.13 ) QT OpenGL support: NO GTK+: NO VTK support: NO Media I/O: ZLib: /lib64/libz.so (ver 1.2.7) JPEG: build-libjpeg-turbo (ver 3.0.3-70) SIMD Support Request: YES SIMD Support: YES WEBP: build (ver encoder: 0x020f) PNG: /usr/local/lib/libpng.so (ver 1.6.43) TIFF: build (ver 42 - 4.6.0) JPEG 2000: build (ver 2.5.0) OpenEXR: build (ver 2.3.0) HDR: YES SUNRASTER: YES PXM: YES PFM: YES Video I/O: DC1394: NO FFMPEG: YES avcodec: YES (59.37.100) avformat: YES (59.27.100) avutil: YES (57.28.100) swscale: YES (6.7.100) avresample: NO GStreamer: NO v4l/v4l2: YES (linux/videodev2.h) Parallel framework: pthreads Trace: YES (with Intel ITT) Other third-party libraries: Lapack: YES (/lib64/libopenblas.so) Eigen: NO Custom HAL: YES (carotene (ver 0.0.1, Auto detected)) Protobuf: build (3.19.1) Flatbuffers: builtin/3rdparty (23.5.9) OpenCL: YES (no extra features) Include path: /io/opencv/3rdparty/include/opencl/1.2 Link libraries: Dynamic load Python 3: Interpreter: /opt/python/cp39-cp39/bin/python3.9 (ver 3.9.19) Libraries: libpython3.9m.a (ver 3.9.19) Limited API: YES (ver 0x03060000) numpy: /home/ci/.local/lib/python3.9/site-packages/numpy/_core/include (ver 2.0.0) install path: python/cv2/python-3 Python (for build): /opt/python/cp39-cp39/bin/python3.9 Java: ant: NO Java: NO JNI: NO Java wrappers: NO Java tests: NO Install to: /io/_skbuild/linux-aarch64-3.9/cmake-install ----------------------------------------------------------------- |
python3-opencv
python3-opencvはデフォルトでインストールされていました。
GStreamer: YES (1.22.0)
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1 |
sudo apt-get install -y python3-opencv |
ビルド情報を貼り付けたものです。
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General configuration for OpenCV 4.6.0 ===================================== Version control: unknown Extra modules: Location (extra): <<PKGBUILDDIR>>/contrib/modules Version control (extra): unknown Platform: Host: aarch64 CMake: 3.25.1 CMake generator: Ninja CMake build tool: /usr/bin/ninja Configuration: Release CPU/HW features: Baseline: NEON FP16 C/C++: Built as dynamic libs?: YES C++ standard: 11 C++ Compiler: /usr/bin/c++ (ver 12.2.0) C++ flags (Release): -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG C++ flags (Debug): -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -DDEBUG -D_DEBUG C Compiler: /usr/bin/cc C flags (Release): -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG C flags (Debug): -g -O2 -ffile-prefix-map=<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -DDEBUG -D_DEBUG Linker flags (Release): -Wl,-z,relro -Wl,-z,now -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-z,now Linker flags (Debug): -Wl,-z,relro -Wl,-z,now -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined ccache: NO Precompiled headers: NO Extra dependencies: dl m pthread rt 3rdparty dependencies: OpenCV modules: To be built: alphamat aruco barcode bgsegm bioinspired calib3d ccalib core cvv datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy hdf hfs highgui img_hash imgcodecs imgproc intensity_transform java line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab viz wechat_qrcode ximgproc xobjdetect xphoto Disabled: python3 world Disabled by dependency: sfm Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev gapi julia matlab ovis python2 ts Applications: apps Documentation: doxygen python javadoc Non-free algorithms: NO GUI: QT5 QT: YES (ver 5.15.8 ) QT OpenGL support: YES (Qt5::OpenGL 5.15.8) OpenGL support: YES (/usr/lib/aarch64-linux-gnu/libOpenGL.so /usr/lib/aarch64-linux-gnu/libGLX.so /usr/lib/aarch64-linux-gnu/libGLU.so) VTK support: YES (ver 9.1.0) Media I/O: ZLib: /usr/lib/aarch64-linux-gnu/libz.so (ver 1.2.13) JPEG: /usr/lib/aarch64-linux-gnu/libjpeg.so (ver 62) WEBP: /usr/lib/aarch64-linux-gnu/libwebp.so (ver encoder: 0x020f) PNG: /usr/lib/aarch64-linux-gnu/libpng.so (ver 1.6.39) TIFF: /usr/lib/aarch64-linux-gnu/libtiff.so (ver 42 / 4.5.0) JPEG 2000: OpenJPEG (ver 2.5.0) OpenEXR: OpenEXR::OpenEXR (ver 3.1.5) GDAL: YES (/usr/lib/aarch64-linux-gnu/libgdal.so) GDCM: YES (3.0.21) HDR: YES SUNRASTER: YES PXM: YES PFM: YES Video I/O: DC1394: YES (2.2.6) FFMPEG: YES avcodec: YES (59.37.100) avformat: YES (59.27.100) avutil: YES (57.28.100) swscale: YES (6.7.100) avresample: NO GStreamer: YES (1.22.0) PvAPI: NO v4l/v4l2: YES (linux/videodev2.h) gPhoto2: YES Parallel framework: TBB (ver 2021.8 interface 12080) Trace: YES (built-in) Other third-party libraries: Lapack: YES (/usr/lib/aarch64-linux-gnu/liblapack.so /usr/lib/aarch64-linux-gnu/libblas.so) Eigen: YES (ver 3.4.0) Custom HAL: NO Protobuf: /usr/lib/aarch64-linux-gnu/libprotobuf.so (3.21.12) OpenCL: YES (no extra features) Include path: /usr/include/CL Link libraries: Dynamic load Python (for build): /usr/bin/python3 Java: ant: /usr/bin/ant (ver 1.10.13) JNI: /usr/lib/jvm/default-java/include /usr/lib/jvm/default-java/include/linux /usr/lib/jvm/default-java/include Java wrappers: YES Java tests: NO Install to: /usr ----------------------------------------------------------------- |
OpenCV
OpenCVはビルド環境次第になりますが、もちろんインストールされていました。
GStreamer: YES (1.22.0)
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sudo apt install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio sudo apt-get install build-essential cmake git pkg-config libjpeg-dev libtiff-dev libpng-dev sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev sudo apt-get install libxvidcore-dev libx264-dev sudo apt-get install libfontconfig1-dev libcairo2-dev sudo apt-get install libgdk-pixbuf2.0-dev libpango1.0-dev sudo apt-get install libgtk2.0-dev libgtk-3-dev sudo apt-get install libatlas-base-dev gfortran sudo apt-get install python3-dev python3-numpy sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev git clone https://github.com/opencv/opencv.git git clone https://github.com/opencv/opencv_contrib.git cd opencv git checkout 4.x cd ../opencv_contrib git checkout 4.x cd ~/opencv mkdir build cd build/ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules -D CPU_BASELINE="" -D CPU_BASELINE_REQUIRE="" -D ENABLE_NEON=OFF -D WITH_TBB=ON -D BUILD_TBB=ON -D WITH_GSTREAMER=ON -D WITH_V4L=ON -D WITH_QT=OFF -D WITH_OPENGL=ON -D OPENCV_ENABLE_NONFREE=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON .. make -j$(nproc) sudo make install sudo ldconfig |
ビルド情報を貼り付けたものです。
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General configuration for OpenCV 4.10.0-dev ===================================== Version control: 4.10.0-205-g78630ddc67 Extra modules: Location (extra): /home/pi/opencv_contrib/modules Version control (extra): 4.10.0-11-g2413f864 Platform: Timestamp: 2024-08-17T13:56:25Z Host: Linux 6.6.31+rpt-rpi-v8 aarch64 CMake: 3.25.1 CMake generator: Unix Makefiles CMake build tool: /usr/bin/gmake Configuration: RELEASE Algorithm Hint: ALGO_HINT_ACCURATE CPU/HW features: Baseline: disabled: NEON Dispatched code generation: NEON_DOTPROD NEON_FP16 NEON_BF16 requested: NEON_FP16 NEON_BF16 NEON_DOTPROD NEON_DOTPROD (4 files): + NEON NEON_DOTPROD NEON_FP16 (2 files): + NEON NEON_FP16 NEON_BF16 (0 files): + NEON NEON_BF16 C/C++: Built as dynamic libs?: YES C++ standard: 11 C++ Compiler: /usr/bin/c++ (ver 12.2.0) C++ flags (Release): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG C++ flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG C Compiler: /usr/bin/cc C flags (Release): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG C flags (Debug): -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG Linker flags (Release): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined Linker flags (Debug): -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined ccache: NO Precompiled headers: NO Extra dependencies: dl m pthread rt 3rdparty dependencies: OpenCV modules: To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape signal stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto Disabled: world Disabled by dependency: - Unavailable: alphamat cannops cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf java julia matlab ovis python2 sfm viz Applications: tests perf_tests examples apps Documentation: NO Non-free algorithms: YES GUI: GTK3 GTK+: YES (ver 3.24.38) OpenGL support: YES (/usr/lib/aarch64-linux-gnu/libGL.so /usr/lib/aarch64-linux-gnu/libGLU.so) VTK support: NO Media I/O: ZLib: /usr/lib/aarch64-linux-gnu/libz.so (ver 1.2.13) JPEG: /usr/lib/aarch64-linux-gnu/libjpeg.so (ver 62) WEBP: /usr/lib/aarch64-linux-gnu/libwebp.so (ver encoder: 0x020f) PNG: /usr/lib/aarch64-linux-gnu/libpng.so (ver 1.6.39) TIFF: /usr/lib/aarch64-linux-gnu/libtiff.so (ver 42 / 4.5.0) JPEG 2000: build (ver 2.5.0) OpenEXR: OpenEXR::OpenEXR (ver 3.1.5) HDR: YES SUNRASTER: YES PXM: YES PFM: YES Video I/O: DC1394: YES (2.2.6) FFMPEG: YES avcodec: YES (59.37.100) avformat: YES (59.27.100) avutil: YES (57.28.100) swscale: YES (6.7.100) avresample: NO GStreamer: YES (1.22.0) v4l/v4l2: YES (linux/videodev2.h) Parallel framework: TBB (ver 2021.11 interface 12110) Trace: YES (with Intel ITT) Other third-party libraries: Lapack: NO Eigen: NO Custom HAL: NO Protobuf: build (3.19.1) Flatbuffers: builtin/3rdparty (23.5.9) OpenCL: YES (no extra features) Include path: /home/pi/opencv/3rdparty/include/opencl/1.2 Link libraries: Dynamic load Python 3: Interpreter: /usr/bin/python3 (ver 3.11.2) Libraries: /usr/lib/aarch64-linux-gnu/libpython3.11.so (ver 3.11.2) Limited API: NO numpy: /usr/lib/python3/dist-packages/numpy/core/include (ver 1.24.2) install path: lib/python3.11/dist-packages/cv2/python-3.11 Python (for build): /usr/bin/python3 Java: ant: NO Java: NO JNI: NO Java wrappers: NO Java tests: NO Install to: /usr/local ----------------------------------------------------------------- |
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