Adding more than one InputMediaAsset to Job in Azure Media Encoder Standard results in 400

Question

Trying to stitch videos using Azure Media Encoder Standard.

Using this piece of code in Java (com.microsoft.azure:azure-media:0.9.7) to create a job for Azure MES:

Job.Creator jobCreator = Job.create()
    .setName(outputAssetName)
    .addInputMediaAsset("nb:cid:UUID:ID1")
    .addInputMediaAsset("nb:cid:UUID:ID2")
    .setPriority(2)
    .addTaskCreator(task);

When submitting the job, this results in the following error:

Nov 08, 2017 6:30:03 PM com.microsoft.windowsazure.services.media.implementation.MediaExceptionProcessor processCatch
WARNING: com.sun.jersey.api.client.UniformInterfaceException: Client response status: 400
         com.sun.jersey.api.client.UniformInterfaceException: Client response status: 400
at com.microsoft.windowsazure.services.media.implementation.MediaBatchOperations.parseBatchResult(MediaBatchOperations.java:368)
at com.microsoft.windowsazure.services.media.models.Job$Creator.processResponse(Job.java:190)
at com.microsoft.windowsazure.services.media.entityoperations.EntityRestProxy.create(EntityRestProxy.java:138)
at com.microsoft.windowsazure.services.media.implementation.MediaExceptionProcessor.create(MediaExceptionProcessor.java:140)
...
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)

With a single InputMediaAsset this works fine.

Two questions:

Do you know the solution of how to submit more than one asset using Java?
If not, is there a way to get a more informative error message than just 400 out of Azure MES?

EDIT

Task config:

{
  "Version": 1.0,
  "Codecs": [
    {
      "Type": "CopyVideo"
    },
    {
      "Type": "CopyAudio"
    }
  ],
  "Outputs": [
    {
      "FileName": "{Basename}_stitch.mp4",
      "Format": {
        "Type": "MP4Format"
      }
    }
  ],
  "Sources": [
    {
      "AssetID": "nb:cid:UUID:ID1",
      "StartTime": "00:00:00",
      "Duration": "00:00:05"
    },
    {
      "AssetID": "nb:cid:UUID:ID2",
      "StartTime": "00:00:00",
      "Duration": "00:00:05"
    }
  ]
}

I dug deeper to see if I can at least get a better error message, and I got this:

HTTP/1.1 400 Bad Request
Content-ID: 2
X-Content-Type-Options: nosniff
Cache-Control: no-cache
DataServiceVersion: 1.0;
Content-Type: application/xml;charset=utf-8

<?xml version="1.0" encoding="utf-8"?><m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"><m:code /><m:message xml:lang="en-US">Input asset not used - nb:cid:UUID:ID2</m:message></m:error>

It is telling me that the second input asset is not used, even though I specify it in the task config - and the task config comes from Azure Media Services Explorer and works there.

Anil Murching Anil Murching · Accepted Answer · 2017-11-15T19:46:50

In your Java code, you should be making a call to create a Task before invoking the Job.Creator. Something like the following:

 Task.CreateBatchOperation task = Task.create(mediaProcessor.getId(), taskXml).setConfiguration(taskConfiguration).setName("Stitching Task");

In the above, the taskXml object should have references to both input Assets. The default Java sample code, such as the one here, will only have a reference to a single JobInputAsset element. Since you are using two (or more) input Assets, you will have to expand taskXml to include the additional JobInputAsset elements.

Adding more than one InputMediaAsset to Job in Azure Media Encoder Standard results in 400

1 Answers