我想使用aws mediaconvert服务进行视频拼接。在AWS拥有一个可访问mediaConvert服务的付费帐户。能够通过mediaConvert控制台创建视频拼接作业。现在，我正在尝试使用AWS java SDK进行同样的操作。已将所有权限分配给IAM用户，并为mediaConvert服务创建了角色。
在这样做的时候，我得到了以下错误
com.amazonaws.services.mediaconvert.model.ForbiddenException：在使用此操作之前，您必须使用订阅API将您的帐户订阅到该服务
堆栈跟踪：
com.amazonaws.services.mediaconvert.model.ForbiddenException: You must use the subscription API to subscribe your account to the service before using this operation. (Service: AWSMediaConvert; Status Code: 403; Error Code: ForbiddenException; Request ID: bba9a221-54b7-47cc-9e2a-88eeece245ea)
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1726) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1381) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1127) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:784) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:752) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:726) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:686) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient$RequestExecutionBuilderImpl.execute(AmazonHttpClient.java:668) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:532) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:512) ~[aws-java-sdk-core-1.11.699.jar:na]
at com.amazonaws.services.mediaconvert.AWSMediaConvertClient.doInvoke(AWSMediaConvertClient.java:1874) ~[aws-java-sdk-mediaconvert-1.11.699.jar:na]
at com.amazonaws.services.mediaconvert.AWSMediaConvertClient.invoke(AWSMediaConvertClient.java:1841) ~[aws-java-sdk-mediaconvert-1.11.699.jar:na]
at com.amazonaws.services.mediaconvert.AWSMediaConvertClient.invoke(AWSMediaConvertClient.java:1830) ~[aws-java-sdk-mediaconvert-1.11.699.jar:na]
at com.amazonaws.services.mediaconvert.AWSMediaConvertClient.executeCreateJob(AWSMediaConvertClient.java:333) ~[aws-java-sdk-mediaconvert-1.11.699.jar:na]
at com.amazonaws.services.mediaconvert.AWSMediaConvertClient.createJob(AWSMediaConvertClient.java:304) ~[aws-java-sdk-mediaconvert-1.11.699.jar:na]
at com.learn.aws.controller.MediaConvertController.runMediaConvertJob(MediaConvertController.java:45) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_221]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_221]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_221]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_221]
我认为您需要设置正确的Endpoint
如果您正在执行此操作，请告诉我，否则，您是否可以尝试运行此命令并为您的特定AWS区域获取正确的端点，并通过在您的AWS SDK代码中设置端点来查看它是否能按预期工作？
aws-mediaconvert描述端点--区域us-east-1
endpointshttps://xxxxxxx.mediaconvert.us-east-1.amazonaws.com
https://docs.aws.amazon.com/mediaconvert/latest/apireference/getting-started.html