How to retrieve image format after heif_context_read_from_file or heif_context_get_primary_image_handle?

[ppersits]

Hello,

Is there a way to know if the file just opened via heif_context_read_from_file is a HEIC or AVIF? Or maybe after the call to heif_context_get_primary_image_handle? Or anytime thereafter?

Thanks in advance.