RTVE, SAPEC complete HEVC, 4K processing for DTT

DetailsJuan Fernandez Gonzalez | 31 May 2015

Spanish broadcasting solutions provider SAPEC has integrated HEVC decoding for UltraHD 4K signal broadcast via DTT as part of a project by the country's public broadcaster RTVE.

The project, carried out at the UPM university, studied different processes to develop next generation DTT through the DVB-T2 standard, including 4K decoding and HEVC compression. SAPEC carried the video signal processing, compression and multiplexing before the final broadcasting took place.

RTVE has provided three different shows through an UltraHD signal of 12Gbps, from which SAPEC has developed three different signals with different decoding: one of HEVC and Dolby Digital+5.1 at a 25Mbps rate, a second one with HEVC and Dolby Digital+2.0 at a 3.5 Mbps rate, and a third one codified on H.264/AVC and MPEG-1 audio at a 5.7 Mbps rate.

The processes were carried on SAPEC's decoder for HEVC, designed for real time HD/SD decoding, aiming to prove the HEVC standard's efficiency for 4K compression. The project also proved the standard is valid for online streaming, DTT, direct-to-home (DTH) and IPTVE broadcasting.

SAPEC has recently been collaborating with RTVE and other Spanish companies such as Abertis and Hispasat to develop new standards to bring UltraHD into the country's DTT.