Videokodningavkodning

Videokodningavkodning refers to the process of compressing and decompressing digital video data. Kodning, also known as encoding or compression, transforms raw video into a more manageable format for storage and transmission. This is achieved by removing redundant information and exploiting redundancies within frames and between frames. Several algorithms and standards exist for video encoding, each offering different trade-offs between compression efficiency, video quality, and computational complexity. Common examples include H.264 (AVC), H.265 (HEVC), and VP9.

Avkodning, or decoding and decompression, is the reverse process. It reconstructs the original or a close approximation of the original video data from the compressed stream. This allows the video to be displayed on a screen. Decoders must be compatible with the specific encoding standard used. The efficiency of both encoding and decoding directly impacts file sizes, streaming speeds, and the required processing power of devices. This entire process is fundamental to modern digital video delivery, from streaming services and video conferencing to digital broadcasting and video editing.