一起使用JavaCV和Realm会导致"java.lang.UnsatisfiedLinkError". [英] Using JavaCV and Realm together causes "java.lang.UnsatisfiedLinkError"

问题描述

我最近通过尝试启动JavaCV的FFmpegFrameGrabber实例而出现以下错误:

I have recently been getting the following error by attempting to start an instance of JavaCV's FFmpegFrameGrabber:

java.lang.UnsatisfiedLinkError: org.bytedeco.javacpp.avutil
    at java.lang.Class.classForName(Native Method)
    at java.lang.Class.forName(Class.java:324)
    at org.bytedeco.javacpp.Loader.load(Loader.java:413)
    at org.bytedeco.javacpp.Loader.load(Loader.java:381)
    at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:2597)
    at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:386)
    at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:380)...

虽然存在解决此问题的方法，但没有一个对我有用.

While solutions to this problem exist, none worked for me.

通过许多试验，我发现足够奇怪的是，如果我不将Realm包含在我的项目中，那么我将不再收到此错误.

Through many trials i have discovered that weirdly enough, if i do not include Realm in my project, i no longer receive this error.

这是我的build.gradle文件的一部分，其中包含所有这些库:

Here is the part of my build.gradle file in which I include all of these libraries:

compile group: 'org.bytedeco', name: 'javacv', version: '1.1'
compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.0.0-1.1', classifier: 'android-arm'
compile group: 'org.bytedeco.javacpp-presets', name: 'opencv', version: '3.0.0-1.1', classifier: 'android-x86'
compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '2.8.1-1.1', classifier: 'android-arm'
compile group: 'org.bytedeco.javacpp-presets', name: 'ffmpeg', version: '2.8.1-1.1', classifier: 'android-x86'

// ORM
compile 'io.realm:realm-android:0.87.2' // Tested NOT OK - Causes JavaCV to crash
//

我认为可能有一个我不知道的解决方案.我在互联网上的任何地方都没有提到图书馆不兼容，也没有提到为什么会发生这种现象.

I am thinking that there may be a solution to this problem that i am not aware of. I found no mention anywhere on the internet about library incompatibility or why this behaviour may occur.

我将用任何其他人可能需要的其他详细信息来编辑此帖子.

I will edit this post with any additional details that anyone might need.

任何帮助将不胜感激.

编辑

我试图应用此处所述的修复程序. 现在，我的包装选项如下:

I attempted to apply the fix described here. Now my packaging options look like this:

packagingOptions {
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/NOTICE.txt'
    exclude 'META-INF/maven/org.bytedeco.javacpp-presets/ffmpeg/pom.properties'
    exclude 'META-INF/maven/org.bytedeco.javacpp-presets/ffmpeg/pom.xml'
    exclude 'META-INF/maven/org.bytedeco.javacpp-presets/opencv/pom.properties'
    exclude 'META-INF/maven/org.bytedeco.javacpp-presets/opencv/pom.xml'

    exclude "lib/arm64-v8a/librealm-jni.so"
}

不幸的是，此更改无效.我仍然被困住.

Unfortunately, this change has no effect. I'm still stuck.

推荐答案

在我的一位同事的帮助下，我已经能够解决此问题.

With the help of one of my coleagues i have been able to solve this issue.

除问题中描述的步骤外，我们:

In adition to the steps described in the question, we:

• 复制 app/src/main/jniLibs/armeabi 和 app/src/main/jniLibs/armeabi-v7a 文件夹中的所有.so文件

• 已添加

• Copyed all of the .so files in the app/src/main/jniLibs/armeabi and app/src/main/jniLibs/armeabi-v7a folders

• Added

ndk { abiFilters"armeabi-v7a" }

ndk { abiFilters "armeabi-v7a" }

到模块的 build.gradle 文件的 defaultConfig 部分

已添加

lintOptions { abortOnError假 }

lintOptions { abortOnError false }

到模块的 build.gradle 文件的 android 部分

如果我有能力，我将尝试向需要它们的任何人提供进一步的说明.

I will try to provide further clarifications to anyone that needs them if i am able.

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