Embedded Multi-Core Systems Dedicated to Dynamic Dataflow Programs

Herve Yviquel, Alexandre Sanchez, Pekka Jääskeläinen, Jarmo Takala, Mickael Raulet, Emmanuel Casseau

    Research output: Contribution to journalArticleScientificpeer-review

    9 Citations (Scopus)
    2 Downloads (Pure)


    Multimedia applications and embedded platforms are both becoming very complex in order to improve user experience. Thus, multimedia developers need high-level methods to automate time-consuming and error-prone tasks. Dynamic dataflow modeling is attractive to describe complex applications, such as video codecs, at a high level of abstraction. This paper presents a dataflow-based design approach to implement video codecs on embedded multi-core platforms. First, we introduce a custom architecture model to design low-power multi-core chips based on distributed memory and Transport-Triggered Architecture processor cores. Then, we describe software synthesis techniques to improve dynamic dataflow implementations. This methodology has been implemented into open-source tools and demonstrated on video decoders based on the MPEG-4 Visual standard and the new High Efficiency Video Coding standard. The simulations achieve real-time decoding (40FPS) of high definition (720P) MPEG-4 Visual video sequences on a custom multi-core platform clocked at 1Ghz, which is an improvement of more than 100 % over previously proposed implementations.
    Translated title of the contributionEmbedded Multi-Core Systems Dedicated to Dynamic Dataflow Programs
    Original languageEnglish
    Pages (from-to)121-136
    Number of pages16
    JournalJournal of Signal Processing Systems
    Issue number1
    Publication statusPublished - Jun 2015
    Publication typeA1 Journal article-refereed

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