How to create asset from existing blob in the associated blob container?

Question

I need to upload files from local system to azure media services. I have uploaded the content from client machine to AMS using HTML5 uploader(browser chunk upload). reference from, http://gauravmantri.com/2013/02/16/uploading-large-files-in-windows-azure-blob- storage-using-shared-access-signature-html-and-javascript.

Now I need to move the uploaded file from blob storage to Azure Media Services as asset and publish. How to achieve this. can anyone provide example for this process.

Gaurav Mantri Gaurav Mantri · Accepted Answer · 2015-10-28T07:51:37

From this link: Copying an Existing Blob into a Media Services Asset

/// <summary>
    /// Creates a new asset and copies blobs from the specifed storage account.
    /// </summary>
    /// <param name="mediaBlobContainer">The specified blob container.</param>
    /// <returns>The new asset.</returns>
    static public IAsset CreateAssetFromExistingBlobs(CloudBlobContainer mediaBlobContainer)
    {
        // Create a new asset. 
        IAsset asset = _context.Assets.Create("CopyBlob_" + Guid.NewGuid(), AssetCreationOptions.None);

        IAccessPolicy writePolicy = _context.AccessPolicies.Create("writePolicy", TimeSpan.FromHours(24), AccessPermissions.Write);
        ILocator destinationLocator = _context.Locators.CreateLocator(LocatorType.Sas, asset, writePolicy);

        CloudBlobClient destBlobStorage = _destinationStorageAccount.CreateCloudBlobClient();

        // Get the asset container URI and Blob copy from mediaContainer to assetContainer. 
        string destinationContainerName = (new Uri(destinationLocator.Path)).Segments[1];

        CloudBlobContainer assetContainer = destBlobStorage.GetContainerReference(destinationContainerName);

        if (assetContainer.CreateIfNotExists())
        {
            assetContainer.SetPermissions(new BlobContainerPermissions
            {
                PublicAccess = BlobContainerPublicAccessType.Blob
            });
        }

        var blobList = mediaBlobContainer.ListBlobs();
        foreach (var sourceBlob in blobList)
        {
            var assetFile = asset.AssetFiles.Create((sourceBlob as ICloudBlob).Name);
            CopyBlob(sourceBlob as ICloudBlob, assetContainer);
            assetFile.ContentFileSize = (sourceBlob as ICloudBlob).Properties.Length;
            assetFile.Update();
        }

        destinationLocator.Delete();
        writePolicy.Delete();

        // Since we copied a set of Smooth Streaming files, 
        // set the .ism file to be the primary file. 
        SetISMFileAsPrimary(asset);

        return asset;
    }

How to create asset from existing blob in the associated blob container?

1 Answers