AWS Kinesis Video Streams - Producer SDK Java - JNI 異常

Question

我想從我的網絡攝像頭流式傳輸到 Kinesis Video Streams。 我一直在閱讀文檔並遵循 AWS 教程。 使用以下命令啟動 DemoAppMain 后：

java -classpath target/amazon-kinesis-video-streams-producer-sdk-java-1.11.0-jar-with-dependencies.jar "-Daws.accessKeyId=fake_accessKeyID -Daws.secretKey=fake_secretKey -Dkvs-stream=fake_streamName - Djava.library.path=src\\main\\resources\\lib\\windows\\KinesisVideoProducerJNI.dll" com.amazonaws.kinesisvideo.demoapp.DemoAppMain

我得到以下例外：

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)

我在互聯網上進行了研究，但沒有成功。 這就是我發這個帖子的原因。 如果有人知道如何解決這個問題，我將不勝感激！

Answer 1

錯誤指出：

no KinesisVideoProducerJNI in java.library.path

你是如何將這個庫添加到你的類路徑中的？

文檔說明了擁有此庫的先決條件：

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

---

如果您查看 windows 文件夾，則該庫存在於那里：

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

也許這樣做會奏效：

-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=<ACCESS_KEY> -Daws.secretKey=<SECRET_KEY> -Dkvs-stream =<KINESIS_VIDEO_STREAM_NAME> -Djava.library.path=src/main/resources/lib/windows com.amazonaws.kinesisvideo.demoapp.DemoAppMain