Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniavutil in java.library.path: - javacv

Question

I am getting the following error while adding and testing javaCV to project in intellij in ubuntu 22.04. I hava read the documentation(https://github.com/bytedeco/javacv) but didn't understand what to do extactly. What I have done for adding javaCV to project is,
File -> Project Structure -> Module -> dependencies (+ add dependencies)
then selected javacpp.jar, javacv.jar, opencv.jar and ffmpeg.jar from the 'javacv-platform-1.5.7-bin' folder which I downloaded.
This is the output which I get after running a code:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniavutil in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2434)
at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:848)
at java.base/java.lang.System.loadLibrary(System.java:2015)
at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1800)
at org.bytedeco.javacpp.Loader.load(Loader.java:1402)
at org.bytedeco.javacpp.Loader.load(Loader.java:1214)
at org.bytedeco.javacpp.Loader.load(Loader.java:1190)
at org.bytedeco.ffmpeg.global.avutil.<clinit>(avutil.java:14)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:488)
at java.base/java.lang.Class.forName(Class.java:467)
at org.bytedeco.javacpp.Loader.load(Loader.java:1269)
at org.bytedeco.javacpp.Loader.load(Loader.java:1214)
at org.bytedeco.javacpp.Loader.load(Loader.java:1190)
at org.bytedeco.ffmpeg.avformat.Read_packet_Pointer_BytePointer_int.<clinit>(Read_packet_Pointer_BytePointer_int.java:45)
at org.bytedeco.javacv.FFmpegFrameGrabber.<clinit>(FFmpegFrameGrabber.java:362)
at com.cooltrickshome.MovieToImage.convertMovietoJPG(MovieToImage.java:31)
at com.cooltrickshome.MovieToImage.main(MovieToImage.java:25)
Caused by: java.lang.UnsatisfiedLinkError: Could not find jniavutil in class, module, and library paths.
at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1767)
... 14 more
Process finished with exit code 1
Can anyone tell the exact steps to follow to add javaCV to the project in intellij ?

Answer 1

I have a similar problem as it failed to find the the library. I ends up build my own ffmpeg, and copying the dylib files in jniLibs, and adding a line like System.loadLibrary("avutil.57") in the static scope.
another way could be setting up the library path:
-Djava.library.path=/Users/xxx/ffmpeg-java-samples/src/main/jniLibs
Since you are in Ubuntu, up to this point, it should be able to fix your issue. However, for the mac, the end result the exception message changes to
tried:'/Users/xxx/ffmpeg-java-samples/src/main/jniLibs/libavutil.57.dylib',
but hitting to another issue: (mach-o file, but is an incompatible
architecture (have (arm64), need (x86_64)))
I am still figuring out the ffmpeg for mac M1 chip part.
after making sure the following jar file, it seems running:
export CLZPATH=$CLZPATH:$JARROOT/org/bytedeco/javacpp/1.5.8/javacpp-1.5.8.jar
export CLZPATH=$CLZPATH:$JARROOT/org/bytedeco/javacpp-presets/ffmpeg/4.1-1.4.4/ffmpeg-4.1-1.4.4.jar
export CLZPATH=$CLZPATH:$JARROOT/org/bytedeco/javacpp-presets/ffmpeg/4.1-1.4.4/ffmpeg-4.1-1.4.4-macosx-x86_64.jar