H262MPEG4

H262MPEG4 is a video compression standard, more commonly known as MPEG-2 Part 2. It is a successor to MPEG-1 and was developed by the Moving Picture Experts Group (MPEG). The standard was finalized in 1995 and is designed for a wide range of video applications, including digital television broadcasting, DVD-Video, and some forms of streaming media.

MPEG-2 utilizes a combination of intra-frame and inter-frame compression techniques. Intra-frame compression encodes information within a single frame, similar to JPEG for still images. Inter-frame compression exploits temporal redundancy between consecutive frames, predicting motion and only encoding the differences. This allows for significantly reduced file sizes compared to uncompressed video.

The standard supports various profiles and levels, offering flexibility in terms of compression efficiency and quality. Common applications include standard definition broadcast television (SDTV), high definition broadcast television (HDTV) in some regions, and the video component of DVD-Video discs. While still widely used, newer codecs like H.264 (AVC) and H.265 (HEVC) offer superior compression efficiency for equivalent visual quality.