Video codec

From Jtvcommunity

A video codec is a device or software that enables video compression and/or decompression for digital video. There is a complex balance between the video quality, the quantity of the data needed to represent it (also known as the bitrate), the complexity of the encoding and decoding algorithms, robustness to data losses and errors, ease of editing, random access, the state of the art of compression algorithm design, end-to-end delay, and a number of other factors.