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GIT_SILENT [dev-docs] Update and improve OpenCV build instructions

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Julius Künzel
2022-02-10 00:16:58 +01:00
parent ee98b99106
commit 9ae19f0ec0
1 changed files with 10 additions and 6 deletions
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16
dev-docs/build.md
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@@ -205,16 +205,20 @@ MLT/Kdenlive tracking effect relies on a "contrib" a OpenCV module that is not s
We build it in our AppImage but you may want it on your system (note OpenCV deserves its reputation of being difficult to build!).
```bash
wget https://github.com/opencv/opencv/archive/4.3.0.tar.gz -O opencv-4.3.0.tar.gz
wget https://github.com/opencv/opencv_contrib/archive/4.3.0.tar.gz -O opencv_contrib-4.3.0.tar.gz
tar xaf opencv-4.3.0.tar.gz
tar xaf opencv_contrib-4.3.0.tar.gz
cd opencv-4.3.0
wget https://github.com/opencv/opencv/archive/4.5.5.tar.gz -O opencv-4.5.5.tar.gz
wget https://github.com/opencv/opencv_contrib/archive/4.5.5.tar.gz -O opencv_contrib-4.5.5.tar.gz
tar xaf opencv-4.5.5.tar.gz
tar xaf opencv_contrib-4.5.5.tar.gz
cd opencv-4.5.5
mkdir build
cd build
# Important: if want to install to the default location
# (ie. you left INSTALL_PREFIX empty in the previous step where we configured it)
# remove -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX from the next command!
cmake .. -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
-DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.3.0/modules \
-DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.5.5/modules \
-DOPENCV_GENERATE_PKGCONFIG=ON -DBUILD_LIST=tracking -DOPENCV_BUILD_3RDPARTY_LIBS=OFF
make install
```
Then you will have to rebuild MLT appending `-DMOD_OPENCV=ON` to `cmake` line!