public static async Task <byte[]> EncodeToSquareJpegImageAsync(StorageFile inputFile, uint size, double dpi = 72)
{
var inputStream = await inputFile.OpenReadAsync();
var decoder = await BitmapDecoder.CreateAsync(inputStream);
using (var inMemoryRandomAccessStream = new InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateForTranscodingAsync(inMemoryRandomAccessStream, decoder);
encoder.BitmapTransform.ScaledWidth = size;
encoder.BitmapTransform.ScaledHeight = size;
await encoder.FlushAsync();
await inMemoryRandomAccessStream.FlushAsync();
return(await inMemoryRandomAccessStream.ToByteArrayAsync());
}
}
