Updated April 10, 2017. In grammar, a demonstrative is a determiner or a pronoun that points to a particular noun or to the noun it replaces. There are four demonstratives in English: the near demonstratives this and these, and the far demonstratives that and those. This and that are singular; these and those are plural.
In the context of video compression, codec is a concatenation of encoder and decoderâa device that only compresses is typically called an encoder, and one that only decompresses is a decoder. The compressed data format usually conforms to a standard video compression specification.
verb. The definition of a code is a set of rules or a system of communication, often with randomly assigned numbers and letters given specific meanings. 1  An example of code is the state's vehicle laws. 2  An example of code is a made up language that two children use to speak to each other.