The DVB Technical Module has agreed to revision and updates to three of its specifications, including subtitles for UHDTV services.
The revised specifications will be presented for formal approval by the DVB Steering Board at its next meeting in mid-November.
Revisions are being brought in to ETSI TS 103 285 V1.2.1 DVB MPEG-DASH Profile for Transport of ISO BMFF Based DVB Services over IP Based Networks. It adds the following to the featureset: live text messages and slideshows for use with Hybrid Digital Radio; Support for linking interactive applications to broadcast services delivered by DVB-DASH; High Dynamic Range (HDR) video; High Frame Rate (HFR) video; Next Generation Audio (NGA).
Also approved were amendments to ETSI TS 101 154, which includes provisions for using signaling defined in Recommendation ITU-T H.222.0 / ISO/IEC 13818-1 [1] (MPEG-2 Systems) in DVB systems. The amended specification also contains H.264/AVC and HEVC video conformance points for use with DVB-DASH.
The Technical Module also approved amendments to ETSI EN 300 743 V1.6.1 for DVB Subtitling Systems. Version 1.6.1 adds explicit support of subtitling for UHDTV services, as defined in ETSI TS 101 154 and ETSI EN 300 468. The latest revision introduces technical extensions specifically for progressive-scan subtitle object coding and the capability to provide the subtitle CLUT (Color Look-Up Table) in other color systems in addition to ITU-R BT.601. Version 1.6.1 of the present document also adds support of subtitles in progressive-scan format.