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。在使用以下命令启动DemoAppMain之后:

java -classpath target/amazon- kinetic -video-streams-producer-sdk-java-1.11.0-jar-with-dependencies.jar "accessKeyId = fake_accessKeyID法。secretKey=fake_secretKey -Dkvs-stream=fake_streamName -Djava.library.path=srcmainresourceslibwindows kinesisvideoproducerjquery .dll"com.amazonaws.kinesisvideo.demoapp.DemoAppMain

得到以下异常:

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。这就是我写这篇文章的原因。如果有人知道如何解决这个问题，我将非常感激!

Answer 1

错误提示:

no KinesisVideoProducerJNI in java.library.path

你是如何将这个库添加到你的类路径的?

文档说明了拥有这个库的先决条件:

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

---

如果你看一下windows文件夹，这个库存在:

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

也许这样做会有用:

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

java -classpath target/amazon- kinect -video- streaming - generator -sdk-java-1.11.0-jar-with-dependencies.jar -Daws.accessKeyId=-Daws.secretKey = & lt; SECRET_KEY>-Dkvs-stream = & lt; KINESIS_VIDEO_STREAM_NAME>-Djava.library.path = src/main/资源/lib/windowscom.amazonaws.kinesisvideo.demoapp.DemoAppMain