Multimedia Network Communications Subject:T0934 / Multimedia Programming Foundation Session:13...

Multimedia Network Communications

Subject : T0934 / Multimedia Programming FoundationSession : 13Tahun : 2009Versi : 1/0

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Learning Outcomes

In the end of this session, students must be able to: – Understand the overview of

multimedia network communication and mobile multimedia

– Understand the basic principal of Java 2 Micro Edition

Outline

• Multimedia Network Communication• Mobile Multimedia• Java 2 Micro Edition (J2ME)

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Multimedia Network Communication

• Similar to computer network communication where both deal with data communication

• The different is multimedia data is known as continuous media, which is :– Voluminous– Real-Time and interactive– Sometimes bursty

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Quality of Service (QoS)

a collective effect of service performances that determined the degree of satisfaction of that service’s user

• QoS for multimedia data transmission depends on many parameters such as :– Data Rate– Latency (maximum frame/packet delay)– Packet loss or error– Jitter (delay jitter)– Sync Skew

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Mobile Multimedia

multimedia information exchange over wireless networks or wireless Internet.

• Increase in usage and development because :– popularity and evolution of mobile computing devices – fast, affordable mobile network

• Common programming language for mobile multimedia application Java 2 Micro Edition (J2ME)

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Java 2 Micro Edition (J2ME)

• originally created in order to deal with the constraints associated with building applications for small devices

• a collection of technologies and specifications that can be combined to construct a complete Java runtime environment specifically to fit the requirements of a particular device or market

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J2ME elements

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provides the most basic set of libraries and virtual machine capabilities for a broad range of devices

a set of APIs that support a narrower range of devices

a set of technology-specific APIs

J2ME Configurations

• Divided into two base configurations :– Connected Limited Device Configuration

(CLDC) , for small mobile devices – Connected Device Profile (CDC) for more

capable mobile devices like smart-phones and set top boxes.

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J2ME Profiles

• Personal Profile– suitable for products that require full AWT compatibility

and applet support (high end PDAS and embedded web browsers)

• Foundation Profile – support resource-constrained devices without a

standards-based GUI system (network printers, routers, residential gateways, enterprise-class server applications)

• Mobile Information Device Profile (MIDP)– A profile, when combined with CLDC, provides a standard

Java runtime environment for today's most popular mobile information device for mobile information devices (cellular phones and two-way pagers, and PDAs)Bina Nusantara

Java Platform

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Sample Code

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Show Picture

Result

Sample Code

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Play Sound In J2ME

Sample Code

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Play Video In J2ME

Sample Code

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Result

References

• What's J2ME?. 2009. http://onjava.com/pub/a/onjava/2001/03/08/J2ME.html

• Java ME Technology. 2009. http://java.sun.com/javame/technology/index.jsp

• A Brief Look at Java 2 Micro Edition. 2009. http://www.wirelessdevnet.com/channels/java/features/j2me.html

• Using Mobile Media API (MMAPI). 2008. http://today.java.net/pub/a/today/2005/09/27/j2me4.html?page=2

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