// https://github.com/ejohnson-dotnet/heic2jpg/blob/master/Program.cs
public static async Task Convert(string input, Format format)
{
try
{
var wInputFile = await StorageFile.GetFileFromPathAsync(input);
using (var wInputStream = await wInputFile.OpenReadAsync())
{
var wDecoder = await BitmapDecoder.CreateAsync(wInputStream);
var wBitmap = await wDecoder.GetSoftwareBitmapAsync();
var wOutputName = Path.GetFileName(Path.ChangeExtension(input, $".{format}".ToLower()));
var wParentFolder = await wInputFile.GetParentAsync();
var wOutputFile = await wParentFolder.CreateFileAsync(wOutputName, CreationCollisionOption.ReplaceExisting);
using (var wOutputStream = await wOutputFile.OpenAsync(FileAccessMode.ReadWrite))
{
var wEncoder = await BitmapEncoder.CreateAsync(Encoders[format], wOutputStream);
wEncoder.SetSoftwareBitmap(wBitmap);
wEncoder.IsThumbnailGenerated = true;
try
{
await wEncoder.FlushAsync();
}
catch (Exception e)
{
const int WINCODEC_ERR_UNSUPPORTEDOPERATION = unchecked ((int)0x88982F81);
switch (e.HResult)
{
case WINCODEC_ERR_UNSUPPORTEDOPERATION:
// If the encoder does not support writing a thumbnail, then try again
// but disable thumbnail generation.
wEncoder.IsThumbnailGenerated = false;
break;
default:
throw;
}
}
if (wEncoder.IsThumbnailGenerated == false)
{
await wEncoder.FlushAsync();
}
}
var wPropertiesToRetrieve = SystemProperties.Union(SystemGpsProperties).Union(SystemImageProperties).Union(SystemPhotoProperties).ToList();
var wProperties = await wInputFile.Properties.RetrievePropertiesAsync(wPropertiesToRetrieve);
foreach (var wProperty in wProperties)
{
try
{
await wOutputFile.Properties.SavePropertiesAsync(new[] { wProperty });
}
catch (Exception e)
{
Console.WriteLine($"Key: {wProperty.Key}, Value: {wProperty.Value}");
Console.WriteLine(e.ToString());
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
