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Multimedia Synchronization In Distributed Environment
Department of Information TechnologySchool Of Technology, Assam University Silchar
Presented ByDeepak Gupta (31320025)B.Tech (IT) 6th SemAssam University , Silchar
Guided By Mr. Sourish Dhar Assistant Professor Dept. of Information Technology
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Synchronization is The Co-ordination of The Events To Operate A System in Unison .
Systems operating with all their parts in synchrony are said to be synchronous or in sync.
Ex. Republic Day Parade
MULTIMEDIA SYNCHRONIZATION IN DISTRIBUTED ENVIRONMENT
SYNCHRONIZATION
DEFINATION :-
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MULTIMEDIA SYNCHRONIZATION IN DISTRIBUTED ENVIRONMENT
Synchronization is An Important Concept in The Following Fields :-
1. Computer science 2. Cryptography
3.Multimedia4. Music 5. Neuroscience6. Photography7. Physics 8. Synthesizers9. Telecommunication
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
MULTIMEDIA SYSTEM :-
A system or application that supports the integrated processing of several media types .
MULTIMEDIA SYNCHRONIZATION:-
Synchronization in multimedia system refers to the temporal relations between media objects in a multimedia system .
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Two type of media data :-
1.Continuous : Time-DependentEx :- Real-Service (Live Video)
2.Discrete : Time-IndependentEx :- Text or Graphic
Three Levels Of MM Synchronization :-
1. Intra-Media Synchronization
2. Inter-Media Synchronization
3. Inter-Party Synchronization
MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
1. Intra-Object Synchronization :-
Time Relation Between Various Presentation Units of One Time-Dependent Media Object Ex : Time relation between the single frames of a video sequence. For a video with a rate of 25 frames per second each of the frames has to be displayed for 40 ms .
Frames of a video sequence that shows a jumping ball
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
2. Inter-Object Synchronization :-
The Synchronization Between Media Objects . Ex : Time Relations of A Multimedia Synchronization That Starts With Audio/Video Sequence , Followed By Several Pictures And An Animation That is Commented By An Audio Sequence .
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
3. Inter-Party Synchronization :-
Also Known As Event Synchronization
Maintains The Inter-Media and/or Intra-Media
Synchronization Among Different Participants
At Distributed Locations .
Ex. Remote Learning Video Conferencing
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
Media Objects :- Texts , Graphics and Images , Audio ,Video etc..
Distributed Storage of Synchronization Information .
Distributed Storage of Media Objects . Communication Delays and Jitter .
Multi-Party Communication Patterns .
Distributed Environment :-
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
Types of Temporal Relations Between Two Objects :-
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
Logical Data Unit (LDU) Hierarchy :-LDU is the unit of a media stream. Different streams have different LDU size.
Example of Video/Audio/User-Defined LDU :-
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MULTIMEDIA SYNCHRONIZATION INDISTRIBUTED ENVIRONMENT
Synchronized Multimedia Integration Language (SMIL) :- SMIL (Pronounced "smile") Enables Simple Authoring
Of Interactive Audiovisual Presentations .
SMIL is Typically Used for “Rich Media"/ Multimedia Presentations Which Integrate Streaming Audio And Video With Images , Text Or Any Other Media Type .
SMIL is An Easy-To-Learn HTML- Like Language .
SMIL Presentations Are Written Using A Simple Text-Editor .
More Details http://www.w3.org/AudioVideo/
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THANK YOU……