AWS Kinesis视频流-生产者SDK Java-JNI例外

Question

我想从我的网络摄像头流到Kinesis视频流。我一直在阅读文档并遵循AWS教程。使用以下命令启动DemoAppMain后：

java-classpath target/amazon-kinesis-video-streams-producer-sdk-java-1.11.0-jar-with-dependencies.jar“

我获得以下例外情况：

DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library .so.
DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library .dylib.
DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library .dll.
DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library libKinesisVideoProducerJNI.so.
DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library libKinesisVideoProducerJNI.dylib.
DEBUG / KinesisVideo: Unsatisfied link error. Directly loading native library libKinesisVideoProducerJNI.dll.
ERROR / KinesisVideo: 2021-10-18T10:50Z T1: EXCEPTION: UnsatisfiedLinkError: Unsatisfied link error. Loading native library KinesisVideoProducerJNI failed with java.lang.UnsatisfiedLinkError: no KinesisVideoProducerJNI in java.library.path: ...
Exception in thread "main" java.lang.RuntimeException: com.amazonaws.kinesisvideo.producer.ProducerException: Failed loading native library StatusCode: 0xd
    at com.amazonaws.kinesisvideo.demoapp.DemoAppMain.main(DemoAppMain.java:60)
Caused by: com.amazonaws.kinesisvideo.producer.ProducerException: Failed loading native library StatusCode: 0xd
    at com.amazonaws.kinesisvideo.internal.producer.jni.NativeKinesisVideoProducerJni.initializeLibrary(NativeKinesisVideoProducerJni.java:1177)
    at com.amazonaws.kinesisvideo.internal.producer.jni.NativeKinesisVideoProducerJni.create(NativeKinesisVideoProducerJni.java:229)
    at com.amazonaws.kinesisvideo.internal.producer.jni.NativeKinesisVideoProducerJni.createSync(NativeKinesisVideoProducerJni.java:247)
    at com.amazonaws.kinesisvideo.internal.producer.jni.NativeKinesisVideoProducerJni.createSync(NativeKinesisVideoProducerJni.java:212)
    at com.amazonaws.kinesisvideo.internal.client.NativeKinesisVideoClient.initializeNewKinesisVideoProducer(NativeKinesisVideoClient.java:238)
    at com.amazonaws.kinesisvideo.internal.client.NativeKinesisVideoClient.initialize(NativeKinesisVideoClient.java:119)
    at com.amazonaws.kinesisvideo.java.client.KinesisVideoJavaClientFactory.createKinesisVideoClient(KinesisVideoJavaClientFactory.java:113)
    at com.amazonaws.kinesisvideo.java.client.KinesisVideoJavaClientFactory.createKinesisVideoClient(KinesisVideoJavaClientFactory.java:86)
    at com.amazonaws.kinesisvideo.demoapp.DemoAppMain.main(DemoAppMain.java:42)

我在网上做了研究，但没有成功。这就是我做这个帖子的原因。如果有人知道如何解决问题，我将不胜感激！

Answer 1

错误声明：

no KinesisVideoProducerJNI in java.library.path

您是如何准确地将这个lib添加到类路径中的？

文档说明了拥有此库的先决条件：

Your NativeLibraryPath must contain your KinesisVideoProducerJNI file, available at https://github.com/awslabs/amazon-kinesis-video-streams-producer-sdk-cpp

. The file name extension for this file depends on your operating system:

    KinesisVideoProducerJNI.so for Linux

    KinesisVideoProducerJNI.dylib for macOS

    KinesisVideoProducerJNI.dll for Windows

https://github.com/awslabs/amazon-kinesis-video-streams-producer-sdk-java/tree/master/src/main/resources/lib/windows

也许这样做会奏效：

-Djava.library.path=src/main/resources/lib/windows  <-- The Directory!

java-classpath target/amazon-kinesis-video-streams-producer-sdk-java-1.11.0-jar-with-dependencies.jar-daws.accesskeyid= -daws.secretkey= -dkvs-stream= -djava.library.path=src/main/resources/lib/windows