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update opencv instructions

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aler9 2022-04-21 18:25:11 +02:00
parent 91ce2dd886
commit 9c20eedaad
1 changed files with 3 additions and 3 deletions
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README.md
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@ -541,11 +541,11 @@ If credentials are in use, use the following parameters:
To publish a video stream from OpenCV to the server, OpenCV must be compiled with GStreamer support, by following this procedure:
```
sudo apt install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
sudo apt install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev gstreamer1.0-plugins-ugly gstreamer1.0-rtsp python3-dev python3-numpy
git clone --depth=1 -b 4.5.4 https://github.com/opencv/opencv
cd opencv
mkdir build && cd build
cmake -D WITH_GSTREAMER=ON ..
cmake -D CMAKE_INSTALL_PREFIX=/usr -D WITH_GSTREAMER=ON ..
make -j$(nproc)
sudo make install
```
@ -562,7 +562,7 @@ width = 800
height = 600
out = cv2.VideoWriter('appsrc ! videoconvert' + \
' ! x264enc speed-preset=ultrafast bitrate=600' + \
' ! x264enc speed-preset=ultrafast bitrate=600 key-int-max=40' + \
' ! rtspclientsink location=rtsp://localhost:8554/mystream',
cv2.CAP_GSTREAMER, 0, fps, (width, height), True)
if not out.isOpened():