HbbTV Association Publishes New Version of Core Specification to Support HDR, HFR and NGA
The HbbTV Association, a global initiative dedicated to providing an open standard for the delivery of broadcast and broadband services through connected TVs and set-top boxes, today announced the immediate availability of HbbTV 2.0.2. This update of the second version of the core HbbTV specification enables HbbTV applications to benefit from new “Ultra High Definition” video and audio technologies such as High Dynamic Range, High Frame Rate and Next-Generation Audio – delivered as streaming services using, e.g., MPEG-DASH. More specifically, the new release brings the following enhancements to HbbTV content:
- High Dynamic Range (HDR), which significantly increases the contrast ratio in video content, producing crisper and livelier video. The specification supports both Hybrid Log Gamma (HLG) and Perceptual Quantizer (PQ) coding.
- High Frame Rate (HFR), which increases the current 50/60 frames per second to 100/120 fps. HFR offers sharper images of moving objects. This is especially useful in fast-moving sports content.
- Next Generation Audio (NGA) technologies, which support object- or scene-based audio for a much more immersive audio experience. The specification supports both AC-4 and MPEG-H.
The HbbTV 2.0.2 specification has been under development since October 2017, and it builds on significant work done in DVB during 2017. Many HbbTV devices already support these technologies today, but there has been no standardized way to use these features. The new specification defines a common, standard mechanism for accessing them from HbbTV applications.
To promote interoperability of the newly added features, the HbbTV Association will order tests that are planned to be available in time for products going on sale in spring 2019.
Commenting on the new release, HbbTV Vice-Chairman Jon Piesing said, “With this new release of our core specification, we fill a gap in delivering broadband services to connected TVs and set-top boxes. We enable the use of new, exciting audio and video technologies to deliver HD and 4k content with much better pixel quality to HbbTV-compliant devices”.
The HbbTV 2.0.2 specification can be found on the HbbTV website.