Macroblock

A macroblock is a fundamental unit of video compression used in various video coding standards, such as H.264, H.265 (HEVC), and MPEG. It is a rectangular block of pixels, typically consisting of a grid of luminance (brightness) and chrominance (color) information. ### Key Features of Macroblocks: 1. **Size**: Macroblocks come in different sizes, such as 16x16 pixels (common in H.