internal static async Task <IEnumerable <AssetFileMetadata> > ParseAssetFileMetadataAsync(Uri assetFileMetadataUri, IRetryPolicy retryPolicy, CancellationToken cancellationToken)
{
IList <AssetFileMetadata> assetFileMetadataList = new List <AssetFileMetadata>();
try
{
using (var assetFileMetadataStream = new MemoryStream())
{
CloudBlockBlob blob = new CloudBlockBlob(assetFileMetadataUri);
await blob.DownloadToStreamAsync(assetFileMetadataStream, null, new BlobRequestOptions { RetryPolicy = retryPolicy }, null, cancellationToken).ConfigureAwait(false);
assetFileMetadataStream.Seek(0, SeekOrigin.Begin);
XElement root = XElement.Load(assetFileMetadataStream);
foreach (XElement assetFileElement in root.Elements())
{
assetFileMetadataList.Add(AssetFileMetadata.Load(assetFileElement));
}
}
}
catch
{
}
return(assetFileMetadataList);
}
internal static AssetFileMetadata Load(XElement assetFileElement)
{
AssetFileMetadata assetFileMetadata = new AssetFileMetadata();
assetFileMetadata.Name = assetFileElement.GetAttributeOrDefault(AssetMetadataParser.NameAttributeName);
assetFileMetadata.Size = assetFileElement.GetAttributeAsLongOrDefault(AssetMetadataParser.SizeAttributeName);
assetFileMetadata.Duration = assetFileElement.GetAttributeAsTimeSpanOrDefault(AssetMetadataParser.DurationAttributeName);
assetFileMetadata.Sources = ParseSources(assetFileElement.Element(AssetMetadataParser.SourcesElementName));
assetFileMetadata.VideoTracks = ParseVideoTracks(assetFileElement.Element(AssetMetadataParser.VideoTracksElementName));
assetFileMetadata.AudioTracks = ParseAudioTracks(assetFileElement.Element(AssetMetadataParser.AudioTracksElementName));
return(assetFileMetadata);
}
