VC-2 HQ codec targets light compression of 4K, 8K video content
The VC-2 HQ codec is a high quality codec for professional applications. Its primary use is the light compression of high pixel rate video (4K, 8K) content to lower bandwidth in order to ease the real-time transport over networked IP infrastructure. The VC-2 HQ compression is essentially visually lossless, and does not add any noticeable latency to the system which is important for applications such as broadcast contribution. The latest revision (SMPTE ST 2042-1:2017), released in June 2017, introduced the option of using asymmetrical wavelet transform for the VC-2 processing, instead of the usual symmetrical wavelet. Asymmetrical wavelets allow a better trade-off between the complexity of the codec and its efficiency. The new standard has also been updated to support latest and future video formats. Barco Silex’ implementation uses the LeGall filter with 5 horizontal levels and 1 vertical level, guaranteeing a compression without artefacts with very low FPGA/ASIC area.
Barco Silex – www.barco.com
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