UEC++ From Basics to Advanced | M22-001: Write Low-Level WebP Decode Interface

This video implements the low-level C++ wrapper around the libwebp decoding API, providing type-safe access to WebPDecodeRGBA, WebPDecodeBGRA, and related functions. The decoder interface is the foundation for all display functionality, converting compressed WebP data back into raw pixel buffers. We create a clean API that accepts compressed WebP byte arrays and returns decoded RGBA buffers with metadata including width, height, and alpha channel presence. The wrapper handles memory allocation for output buffers, validates WebP data integrity before decoding, and reports structured errors for malformed input. By the end of this lesson, you will have a robust low-level WebP decoding interface that can decompress any valid WebP image into pixel data ready for Unreal Engine texture creation.