private async Task UploadToAzure(Image dbImage, SKCodec codec, CloudBlobContainer container, int desiredWidth)
{
var ratio = (float)desiredWidth / (float)codec.Info.Width;
var supportedScale = codec.GetScaledDimensions(ratio);
SKEncodedImageFormat target = codec.EncodedFormat == SKEncodedImageFormat.Gif ? SKEncodedImageFormat.Gif : SKEncodedImageFormat.Png;
var width = supportedScale.Width;
var height = supportedScale.Height;
var format = target.ToString();
var name = $"{dbImage.Slug}_{width}_{height}";
var blobRef = container.GetBlockBlobReference(name);
var url = blobRef.StorageUri.PrimaryUri.ToString();
using (var resultBitmap = SKBitmap.Decode(codec))
using (var resizedBitmap = resultBitmap.Resize(new SKImageInfo(supportedScale.Width, supportedScale.Height), SKBitmapResizeMethod.Lanczos3))
using (var resultImage = SKImage.FromBitmap(resizedBitmap))
using (var imageStream = resultImage.Encode(target, 100).AsStream())
{
using (var outputSTream = await blobRef.OpenWriteAsync())
{
await imageStream.CopyToAsync(outputSTream);
}
}
var data = new AzureAdapterMetadata(this.account.BlobEndpoint.ToString(), container.Name, name, url);
await this.imageData.SetImageLinks(new ImageLink(dbImage.Id, null, width, height, format, ImageAdapter.AzureFile, data.ToString()));
}
public Task <string> GetUrl(ImageLink link)
{
if (link.Adapter != ImageAdapter.AzureFile)
{
throw new NotImplementedException("Only azure storage is supproted");
}
var meta = AzureAdapterMetadata.Parse(link.Metadata);
return(Task.FromResult(meta.Url));
}
