Identification of actual container format from data stream

[jubilant-enigma]

Unless I am mistaken, Image.Identify returns a IImageInfo which contains the bit depth, resolution, and metadata of an image. It does not seem to contain the actual type of the filetype/container of the file that was queried.

For example, suppose I want to use ImageSharp to detect and rename .jpg files that have been incorrectly renamed to .png. The actual detection of this is relatively simple, it just involves looking at the first few bytes of the file. However, I cannot see see a way to actually detect this from the Identify API. Should the IImageInfo interface include a member variable that specifies the container format?

[tocsoft]

You want to use the overload that returns an IImageFormat as an out parameter.

i.e. call IImageInfo Identify(Stream stream, out IImageFormat format)

IImageFormat then gives you access to things like the default mime type or file extensions all based on the actual format and not on the file path with the wrong extension.