SUPERIOR LIGHTWEIGHT SLICE-BASED VIDEO CODEC
The high quality profile and low delay syntax of VC-2 is used to achieve low compression ratio, typically up to 4 times visually lossless. The algorithm is lightweight and works without external memory allowing cost-effective implementation. The VC-2 High Quality codec has ultra-low latency due to its slice-based processing.
Did you know?
British Broadcasting Corporation (BBC) developed and open sourced a Wavelet-based video codec named Dirac. A low-complexity profile of the Dirac codec named Dirac Pro, which does not use motion compensation, was standardized by SMPTE as the VC-2 codec. Silex Insight’s VC-2 HQ IP implements the VC-2 codec and associated support for handling the compressed bitstream.
Feature highlights in VC-2 HQ
The slice-based processing allows a high level of parallelization. In combination with small slices, a sub-frame level pipelining can be put in place and lead to an end-to-end latency of 2 stripe height lines. With 8 lines of latency in 4K60, VC-2 HQ has a latency of only 0.0593 milliseconds.
COMPRESSED FRAME BUFFER
The slice-based processing allows to update any slice directly in the compressed picture! This is ideal for picture in picture (see example below), logo insertion or video content update without the decoding and re-encoding of the full resolution picture, saving power. VC-2 HQ is a hyper-flexible codec.
REGION OF INTEREST (ACTIVITY ZONE) PROCESSING
With ROI coding, only the useful slices determined by the user are encoded. This allows saving power and bandwidth.
Download our white paper to learn more: https://www.whitepapervc-2hq.com