and the ouput is: Video I/O:įrom what I understand from this log FFMPEG is installed and detected by OpenCV after which I compile the jar with the command make -j10 and it runs successfully with no single error but even after all this OpenCv does not play video files, but it does work with the WebCam.I am really lost and very new to OpenCV in Linux so please if there is anyone who knows what could be the problem help me sort it. Meaning FFMPEG was not installed but when compiling the Jar I configure CMAKE like cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local. I have manage to compile the Jar but having issues playing a video, I get the error Unable to stop the stream: Inappropriate ioctl for device from what I understand it is something to do with Video I/O when I call the method Core.getBuildInformation() it gives me the following output: Video I/O: & if I try and install libavdevice53 Depends on libasound2 (>1.024. But I get:-Depends on libavdevices53 but it isn't going to be installed. So, it is essential to know how to install it on Ubuntu 22.04.
I have been using OpenCV on Windows for a year now and recently transitioned to Linux, Life has not been easy, from loading an already existing Jar file to compiling my own. I am trying to install ffmpeg to re-encode some flv's. FFmpeg is one of the most important libraries you can get for working with audio and video.
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