Multimedia system To discuss Multimedia Definitions Multimedia system

Multimedia system • To discuss …. • Multimedia – Definitions • Multimedia system • Data stream & continuous media • Streaming Media • Multimedia – Applications ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

MULTIMEDIA • Interactive multimedia • - the end user controls what is delivered when. • - NON- Linear ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

MULTIMEDIA • Hypermedia • -A computer based information retrieval system that enables a user to gain or provide access to texts , audio and video recordings, photographs and computer graphics related to a particular subject. ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia – Definitions multi - many, much, multiple • Medium – a substance regarded as the means of transmission of a force or effect; a channel or system of communication , information or entertainment • - ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

MULTIMEDIA – DEFINITIONS • So multimedia ? ? • - the terms Multi & medium don’t seen fit well • - term Medium needs more clarification !!! • Medium • Means for distribution and presentation of information • classification based on perception ( text, audio , video ) is appropriate • For defining multimedia ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia Definitions • - Time always takes separate dimension in the media representation • - Based on time – dimension in the representation space , media can be • - time – independent (Discrete) • Text , Graphics • Time dependent (continuous) • Audio , Video • Video ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia Definitions • Video sequence of frames (image) presented to the user periodically • Time dependent periodic media is not continuous !! • Discrete & Continuous here has no connection with internal • Representation ( relates to the viewers impression …) ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Categories of multimedia • Interactive and non interactive • Real-time and recorded • Linear active content progress with out any navigation control for the viewer such as a cinema presentation. Nonlinear content offers • User interactivity to control progress as used with a computer game or linear and non – linear • used in self-paced computer based training interactive multimedia ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia file format • Multimedia file formats may differ for the purpose it is used for example for streaming or for downloading. Formats suitable for streaming should be able to transfer data in a continuous for streaming usually for audio or video ), for example over the internet so that the player can play it as the data arrives without waiting the entire ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia system • Audio formats • Video formats • Advanced video coding (AVC) • Common digital audio formats • Common video format • Common image file format ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ

Multimedia tools • 1 - classification of multimedia tools • Analysis tools • Design tools • Management tools • Production tools • Evaluation tools • 2 - classification of multimedia tools • Audio software • Graphic software • Video software ﺍﻻﻟﻜﺘﺮﻭﻧﻲ ﻧﻈﺎﻡ ﺍﻟﻤﺤﺎﺿﺮﺍﺕ