An RVC dataflow description of the AVC Constrained Baseline Profile decoder

Gorin, Jérôme; Raulet, Mickaël; Cheng, Y-L.; Lin, HY; Siret, Nicolas; Sugimoto, Kazuo; Lee, G.G.

doi:10.1109/icip.2009.5414265

Cited by 15 publications

(12 citation statements)

References 6 publications

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“…The first representation corresponds to the Simple Profile (SP) specification of the MPEG-4 part 2 standard and the second representation corresponds to Constrained Baseline Profile (CBP) specification of the MPEG-4 part 10 Advance Video Coding (AVC) standard. Details of these two dataflow representations are given in [18].…”

Section: Applications and Resultsmentioning

confidence: 99%

“…5 illustrates the pool of profiles of coding tools standardized in MPEG-4 part 10 Advanced Video Coding (AVC). This pool guarantees that at least 30% of the coding tools can be reused when switching from one profile to another [18]. The reuse percentage rises when switching to MPEG-4 AVC scalable profiles (SVC) [40] and MultiView profiles (MVC) [51].…”

Section: Partial Recompilation Of Applicationsmentioning

confidence: 99%

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Optimized dynamic compilation of dataflow representations for multimedia applications

Gorin¹,

Raulet²,

Prêteux³

2012

Ann. Telecommun.

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To cite this version:Jérôme Gorin, Mickaël Raulet, Françoise Préteux. Optimized dynamic compilation of dataflow representations for multimedia applications. Annals of Telecommunications -annales des télécommunica-tions, Springer, 2013, 68 (3-4) Abstract This paper proposes two optimization methods based on dataflow representations and dynamic compilation that enhance flexibility and performance of multimedia applications. These optimization methods are intended to be used in an adaptive decoding context, or, in other terms, where decoders have the ability to adapt their decoding processes according to a bitstream. This adaptation is made possible by coupling the decoding information to process a stream inside a coded stream.In this paper, we use dataflow representations from the upcoming MPEG Reconfigurable Media Coding (RMC) standard to supply the decoding information to adaptive decoders. The benefits claimed by MPEG RMC are a reuse of coding tools between different specifications of decoder and an execution scalability on different processing units with a single specification, which can target either hardware and/or software platforms. These benefits are not yet achievable in practice as these specifications are not used at the receiver side in MPEG RMC. We valid these benefits and propose two optimizations for the generation and the execution of dataflow models: the first optimization takes benefits of the reuse of coding tools to reduce the time to obtain -configure -enforceable decoders. The second provides an efficient, dynamic and scalable execution according to the features of the execution platform. We show the practical impact of these two optimizations on two decoder representations compliant with the MPEG-4 part 2 Simple Profile standard and the MPEG-4 Advanced Video Coding standard. The results shows that configuration time can be reduced by 3 and the performance of decoders can be increased by 50%.

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Section: Applications and Resultsmentioning

confidence: 99%

Section: Partial Recompilation Of Applicationsmentioning

confidence: 99%

Optimized dynamic compilation of dataflow representations for multimedia applications

Gorin¹,

Raulet²,

Prêteux³

2012

Ann. Telecommun.

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show abstract

“…The configurations of decoders used are described in [4] for the MPEG-4 Part-2 Simple Profile (SP) decoder and from [9] for the MPEG-4 Advanced Video Coding (AVC) Constrained Baseline Profile (CBP). We considered those two configurations of decoder as the most representative of MPEG RVC as they cover all the VTL.…”

Section: Real-time Decoding Of Cif Videomentioning

confidence: 99%

LLVM-based and scalable MPEG-RVC decoder

Gorin¹,

Wipliez²,

Prêteux³

et al. 2010

J Real-Time Image Proc

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“…[7] 3. RVC-CAL CABAC Implementation The implementation of the RVC H.264/AVC parser FU in the current RVC-CAL AVC CBP (Constrained Base Profile) [4], [6] decoder is being used as a base for the CABAC entropy decoder. That means that each action used by the parser from the CAVLC is modified so that can support CABAC SE's extraction.…”

Section: Cabac Arithmetic Coding Enginementioning

confidence: 99%

RVC-CAL dataflow implementations of MPEG AVC/H.264 CABAC decoding

Bezati

Mattavelli

Raulet

2010

2010 Conference on Design and Architectures for Signal and Image Processing (DASIP)

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To cite this version:Endri Bezati, Marco Mattavelli, Mickael Raulet. AbstractThis paper presents the implementation of the CABAC entropy decoder in the RVC-CAL dataflow programming language. CABAC is the Context based Adaptive Binary Arithmetic Coding entropy decoder used in the AVC/H.264 main and high profile video standard. CABAC as an entropy decoding engine gives a better compression rate efficiency, but has a greater complexity compared to other entropy decoding engines. With the implementation of the CABAC entropy decoder in RVC-CAL, this paper is a proof that complex algorithms can be implemented in a high level design and that can be described in a data flow language as RVC-CAL is. Thought in this paper we are going to analyze two different methods of implementing the CABAC entropy decoder and propose a data flow model of the CABAC entropy decoder in RVC-CAL.

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An RVC dataflow description of the AVC Constrained Baseline Profile decoder

Cited by 15 publications

References 6 publications

Optimized dynamic compilation of dataflow representations for multimedia applications

Optimized dynamic compilation of dataflow representations for multimedia applications

LLVM-based and scalable MPEG-RVC decoder

RVC-CAL dataflow implementations of MPEG AVC/H.264 CABAC decoding

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