BitmapSource.CopyPixels -what's a good value for stride?
image, wpf
Solution
You can use stride = pixel_size * image_width value. For example, for RGBA bitmap with 100 pixel width, stride = 400.
Some applications may require special line alignment. For example, Windows GDI bitmaps require 32-bits line alignment. In this case, for RGB bitmap with width = 33, stride value 33*3=99 should be changed to 100, to have 32-bits line alignment in destination array.
Generally, you should know destination array requirements. In there are no special requirements, use default pixel_size * image_width.
Problem
I'm trying to get the pixel data from a WPF `BitmapSource` object. As I understand, this can be accomplished by calling its `CopyPixels` method. This method needs a stride parameter, which I don't know how to obtain. As far as I know, stride is value that's used when stepping in the array during reading or copying. What would be an appropriate stride value for any BitmapSource?