[英]Azure Media Service using IAssetFile in task
我想知道是否可以使用AssetFile添加到任務中? 我有這個流程:
我知道IAsset的ID,並成功獲取了360p分辨率視頻的IAssetFile。 但是,我不能使用它,因為任務需要IAsset而不是IAssetFile。
這是我的示例代碼:
IJob job = _MediaServicesContext.Jobs.Create("Video Thumbnail Job");
string MediaProcessorName = "Azure Media Video Thumbnails";
var processor = GetLatestMediaProcessorByName(MediaProcessorName);
IAsset curretAsset = _MediaServicesContext.Assets.Where(a => a.Id == request.AssetId).FirstOrDefault();
IAssetFile file360 = curretAsset.AssetFiles.Where(f => f.Name.EndsWith("360_500.mp4")).FirstOrDefault();
String configuration = "{\"version\":\"1.0\",\"options\":{\"outputAudio\" : \"false\", \"maxMotionThumbnailDurationInSecs\": \"10\", \"fadeInFadeOut\" : \"false\" }}";
// Create a task with the encoding details, using a string preset.
ITask task = job.Tasks.AddNew("My Video Thumbnail Task",
processor,
configuration,
TaskOptions.None);
// Specify the input asset.
task.InputAssets.Add(file360);
// Specify the output asset.
task.OutputAssets.AddNew(curretAsset.Id.ToString() + " Summarized", AssetCreationOptions.None);
// Use the following event handler to check job progress.
job.StateChanged += new EventHandler<JobStateChangedEventArgs>(StateChanged);
// Launch the job.
job.Submit();
// Check job execution and wait for job to finish.
Task progressJobTask = job.GetExecutionProgressTask(CancellationToken.None);
progressJobTask.Wait();
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