
CHAPTER 21 / HARDWARE IMPLEMENTATION OF DATA COMPRESSION 407
networked multimedia system, such changing parameters could be the video frame size, the frame
rate, network traffic, performance requirements, quality of service parameters, and application
behavior.
Programmability is another important criterion in multimedia hardware systems so that they
can handle different standards and also variations in standards or algorithms that occur in time.
However, while programmable processors are flexible, they are slower than dedicated hardware
in general. Often, the computation-intensive tasks such as DCT (Discrete Cosine Transform) ...