| Summary: | In this thesis, a new broadcast framework is proposed for realizing the MPEG4
media content. This framework defines some possible techniques that may be used for
realizing MPEG4 streams in broadcast applications. The thesis proposes solutions to some of
the problems associated with broadcasting MPEG-4 media streams regarding service
advertisement, media streams management, transport-level streams synchronization, and
bandwidth control. To verify the functionality of this framework, a client/server software has
been developed, which includes two main modules for service advertisement and MPEG-4
media streams management and delivery. The software architecture adopts the push model
for data distribution in all modules to minimize the information delivered on the upstream
network media. The service advertisement module adopts SAP/SDP protocol stack for
announcing services' description. The media streams management module adopts the MPEG-
4 DMIF standard for media streams management. The framework comprises the main
portions for broadcasting MPEG-4 streams including data channels multiplexing to group the
data channels' flows to one or more network flows, and client random access to allow clients
to access the service at any time during the service presentation. The implementation uses
MPEG-4 IM1 reference software for elementary streams creation, decoding, and
synchronization. The implementation tackles some issues related to the broadcast data
delivery. These issues include transport-level data channels synchronization for
synchronizing service's audio-visual objects before data transport. The implementation also
includes two algorithms for server's bandwidth control. ServicePacketDrop algorithm
controls the server's bandwidth on the service level while ObjectPacketDrop control the
server's bandwidth on the object level. === Applied Science, Faculty of === Electrical and Computer Engineering, Department of === Graduate
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