public static async Task <MetadataItemsBox> CreateAsync(IBinaryStream stream, Box box)
{
if (!box.IsContainer)
{
throw new FormatException();
}
var metadataItemsBox = new MetadataItemsBox();
foreach (var subbox in box.Boxes)
{
switch (subbox.Name)
{
case "covr":
var data = subbox.Boxes.FirstOrDefault(a => a.Name == "data");
if (data != null)
{
metadataItemsBox.Cover = (await MetadataValueBox.CreateAsync(stream, data).ConfigureAwait(false)).DataLocation;
}
break;
default:
break;
}
}
return(metadataItemsBox);
}
public static Task <MetadataValueBox> CreateAsync(IBinaryStream stream, Box box)
{
var metadataValueBox = new MetadataValueBox();
stream.Position = box.Offset + 8;
stream.Position += 8; // TypeIndicator + LocaleIndicator
metadataValueBox.DataLocation = new DataLocation(stream.Position, box.Length - stream.Position);
return(Task.FromResult(metadataValueBox));
}
