java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "av_version_info" referenced by "/data/app/com.domain.appname-1/lib/arm/libjniavutil.so"...

[DeKinci]

I'm currently getting this error on some devices (exactly on Meizu Pro 6) but on others with same cpu (Huawei Honor 9 Lite) everything works fine,
I use manual installation with unpacking .so files into jniLibs and relinker:

ReLinker.Logger logger = message -> Log.v("NativeLoader", message);

        ReLinker.log(logger).recursively().loadLibrary(context, "jniavcodec");
        ReLinker.log(logger).recursively().loadLibrary(context, "avcodec");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniavdevice");
        ReLinker.log(logger).recursively().loadLibrary(context, "avdevice");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniavfilter");
        ReLinker.log(logger).recursively().loadLibrary(context, "avfilter");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniavformat");
        ReLinker.log(logger).recursively().loadLibrary(context, "avformat");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniavutil");
        ReLinker.log(logger).recursively().loadLibrary(context, "avutil");

        ReLinker.log(logger).recursively().loadLibrary(context, "jnipostproc");
        ReLinker.log(logger).recursively().loadLibrary(context, "postproc");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniswresample");
        ReLinker.log(logger).recursively().loadLibrary(context, "swresample");

        ReLinker.log(logger).recursively().loadLibrary(context, "jniswscale");
        ReLinker.log(logger).recursively().loadLibrary(context, "swscale");

This code is called from the first activity of application, before any library elements used.

This is log I have:

  E/ACRA (12118): Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "av_version_info" referenced by "/data/app/com.domain.appname-1/lib/arm/libjniavutil.so"... 
  E/ACRA (12118): at java.lang.Runtime.loadLibrary(Runtime.java:372) 
  E/ACRA (12118): at java.lang.System.loadLibrary(System.java:1076) 
  E/ACRA (12118): at org.bytedeco.javacpp.Loader.loadLibrary(Loader.java:1220) 
  E/ACRA (12118): at org.bytedeco.javacpp.Loader.load(Loader.java:980) 
  E/ACRA (12118): at org.bytedeco.javacpp.Loader.load(Loader.java:879) 
  E/ACRA (12118): at org.bytedeco.javacpp.avutil.(avutil.java:10) 

What I found sometimes it goes with the com.domain.appname-1 directory, and sometimes with the com.domain.appname-2.

Also it worked in a couple of builds, but mostly not (I did not change anything in library loading)

[saudet]

Before jniavutil, you'll need to load avutil, and that before everything else (avcodec, avformat, etc)

[DeKinci]

Well, I loaded all the non jni libs before all non-jni and avutils (with jniavutils) before all of them and that did not help

[saudet]

That's fine, but we still need to load avutil before anything else.

[DeKinci]

Yes, I do it like this:

        ReLinker.log(logger).recursively().loadLibrary(context, "avutil");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniavutil");

        ReLinker.log(logger).recursively().loadLibrary(context, "avcodec");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniavcodec");

        ReLinker.log(logger).recursively().loadLibrary(context, "avdevice");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniavdevice");

        ReLinker.log(logger).recursively().loadLibrary(context, "avfilter");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniavfilter");

        ReLinker.log(logger).recursively().loadLibrary(context, "avformat");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniavformat");

        ReLinker.log(logger).recursively().loadLibrary(context, "postproc");
        ReLinker.log(logger).recursively().loadLibrary(context, "jnipostproc");

        ReLinker.log(logger).recursively().loadLibrary(context, "swresample");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniswresample");

        ReLinker.log(logger).recursively().loadLibrary(context, "swscale");
        ReLinker.log(logger).recursively().loadLibrary(context, "jniswscale");

and it is not working

[saudet]

Please post the full Android log.

[DeKinci]

I don't have one. Error pops on a remote phone, and I only get ACRA repot, which (idk why) does not include relinker log (but includes android log, which I already posted)

[DeKinci]

Sorry, my bad: I called av_log_set_level(AV_LOG_DEBUG); before using relinker

[saudet]

Anyway, there's probably another avutil.so somewhere on that device that is interfering with the one from JavaCPP/JavaCV. You could rebuild from source and give it another name, but I'm wondering if something like described on https://github.com/bytedeco/javacpp-presets/wiki/The-UnsatisfiedLinkError-X-File-%28a-real-experience%29 works around that:

Loader.loadLibrary(new URL[0], "avutil");

[DeKinci]

I'll try that when whill get access to such device

[saudet]

FYI, commit bytedeco/javacpp@f1f21ae should take care of this issue.