Overview of the MPEG Reconfigurable Video Coding Framework
Författare
Summary, in English
Abstract in Undetermined
Video coding technology in the last 20 years
has evolved producing a variety of different and com-
plex algorithms and coding standards. So far the speci-
fication of such standards, and of the algorithms that
build them, has been done case by case providing
monolithic textual and reference software specifica-
tions in different forms and programming languages.
However, very little attention has been given to pro-
vide a specification formalism that explicitly presents
common components between standards, and the incre-
mental modifications of such monolithic standards. The
MPEG Reconfigurable Video Coding (RVC) frame-
work is a new ISO standard currently under its final stage of standardization, aiming at providing video
codec specifications at the level of library components
instead of monolithic algorithms. The new concept is to
be able to specify a decoder of an existing standard or
a completely new configuration that may better satisfy
application-specific constraints by selecting standard
components from a library of standard coding algo-
rithms. The possibility of dynamic configuration and
reconfiguration of codecs also requires new method-
ologies and new tools for describing the new bitstream
syntaxes and the parsers of such new codecs. The
RVC framework is based on the usage of a new actor/
dataflow oriented language called Cal for the specifi-
cation of the standard library and instantiation of the
RVC decoder model. This language has been specifi-
cally designed for modeling complex signal processing
systems. Cal dataflow models expose the intrinsic con-
currency of the algorithms by employing the notions
of actor programming and dataflow. The paper gives
an overview of the concepts and technologies building
the standard RVC framework and the non standard
tools supporting the RVC model from the instantiation
and simulation of the Cal model to software and/or
hardware code synthesis.
Video coding technology in the last 20 years
has evolved producing a variety of different and com-
plex algorithms and coding standards. So far the speci-
fication of such standards, and of the algorithms that
build them, has been done case by case providing
monolithic textual and reference software specifica-
tions in different forms and programming languages.
However, very little attention has been given to pro-
vide a specification formalism that explicitly presents
common components between standards, and the incre-
mental modifications of such monolithic standards. The
MPEG Reconfigurable Video Coding (RVC) frame-
work is a new ISO standard currently under its final stage of standardization, aiming at providing video
codec specifications at the level of library components
instead of monolithic algorithms. The new concept is to
be able to specify a decoder of an existing standard or
a completely new configuration that may better satisfy
application-specific constraints by selecting standard
components from a library of standard coding algo-
rithms. The possibility of dynamic configuration and
reconfiguration of codecs also requires new method-
ologies and new tools for describing the new bitstream
syntaxes and the parsers of such new codecs. The
RVC framework is based on the usage of a new actor/
dataflow oriented language called Cal for the specifi-
cation of the standard library and instantiation of the
RVC decoder model. This language has been specifi-
cally designed for modeling complex signal processing
systems. Cal dataflow models expose the intrinsic con-
currency of the algorithms by employing the notions
of actor programming and dataflow. The paper gives
an overview of the concepts and technologies building
the standard RVC framework and the non standard
tools supporting the RVC model from the instantiation
and simulation of the Cal model to software and/or
hardware code synthesis.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
251-263
Publikation/Tidskrift/Serie
Journal of Signal Processing Systems
Volym
63
Issue
2
Fulltext
- Available as PDF - 797 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Computer Science
Status
Published
Forskningsgrupp
- EDSLab
ISBN/ISSN/Övrigt
- ISSN: 1939-8115