Towards a Multi-Granular RVC VTL: A Case Study of CAL Transformations on the ISO/IEC MPEG Fixed Point IDCT

Recent advances in digital video hardware, software and coding standards have led to a wide variety of digital video products. However, such continuous evolution leads to the necessity of regular replacements of the available multimedia devices. To avoid this, a new initiative within the MPEG community, namely Reconfigurable Video Coding, has risen to provide the flexible framework that allows for the “simple” realization of highly-reconfigurable video coding solutions, without the need to wait for decades to replace the existing infrastructure. This paper illustrates the different design schemes to build various platform-specific proprietary libraries, at various granularity levels, together with a case study to prove the concept.