Brazil Planning Phase 2 for Next Generation Broadcast Solution
The government of Brazil wants to develop a next generation broadcast solution and has formed the Brazilian Digital Terrestrial Television System (SBTVD) Forum TV 3.0 Project. A Call for Proposals was issued in 2020 and the submission period was just closed. The Forum received 36 responses from 21 different organizations worldwide covering 6 system components (Over-the-air Physical Layer, Transport Layer, Video Coding, Audio Coding, Captions, and Application Coding).
The video coding component is required to support 8K/120fps for Internet delivery (that doesn’t mean that all receivers will be required to support that rate, however). No 8K support is required for over-the-air delivery, however.
Some similar proposals were merged for the sake of Phase 2 testing and evaluation, resulting in the following 33 candidate technologies:
Over-the-air Physical Layer
| Candidate Technology | Proponents |
| Advanced ISDB-T | DiBEG |
| ATSC 3.0 | ETRI |
| ATSC | |
| 5G Broadcast / EnTV | Qualcomm / Rohde & Schwarz GmbH |
| DTMB-A | DTNEL |
Transport Layer
| Candidate Technology | Proponents |
| ROUTE/DASH | ATSC |
| SMT | DTNEL |
| NERC DTV | |
| OTT-B | OTT-Broadcast Consortium |
| MMT | DiBEG |
| MMT | ATSC |
Video Coding
| Sub-Components | Candidate Technology | Proponents |
| Video Base Layer Codec | AVS3 | DTNEL |
| Video Base Layer Codec + (multilayer) Video Enhancement Codec |
VVC main / multilayer | DiBEG |
| InterDigital / Ateme / Fraunhofer HHI | ||
| HEVC / SHVC | ATSC | |
| Video Enhancement Codec | LCEVC (multilayer) | V-Nova |
| Phase / Harmonic | ||
| Dynamic Resolution Encoding (single layer) |
Phase / Harmonic | |
| HDR Dynamic Mapping Codec | SL-HDR (1/2/3) | InterDigital / Philips |
| ATSC | ||
| SMPTE ST 2094-10 (Dolby Vision) | Dolby | |
| ATSC | ||
| SMPTE ST 2094-40 (HDR10+) | Samsung | |
| VR Codec | V3C (V-PCC / MIV) | InterDigital / Philips / Harmonic / Phase |
| Emergency Warning System manager | ATSC 3.0 AEA | ATSC |
Audio Coding
| Candidate Technology | Proponents |
| AC-4 | ATSC |
| Dolby | |
| AVSA | DTNEL |
| MPEG-H Audio | DiBEG |
| Ateme / Fraunhofer IIS | |
| ATSC |
Captions
| Candidate Technology | Proponents |
| IMSC1 | ATSC |
| ARIB-TTML | DiBEG |
| AVS Captions | DTNEL |
Application Coding
| Sub-Components | Candidate Technology | Proponents |
| All | Advanced ISDB-T | DiBEG |
| DTNEL Application Coding | DTNEL | |
| ATSC 3.0 | ATSC | |
| 3D object-based immersive audio interaction | MPEG-H Audio | Ateme / Fraunhofer IIS |
| VR / AR / XR support | Guaraná | CEFET/RJ |
| voice interaction gesture interaction multimodal interaction multi-user identification support multi-user interaction support sensory effects |
NCL 4.0 | UFF |
| multi-device support full IP convergence |
Ginga-NCL Use Case for Interactive Educational Video | UFPB |
| geolocation API | Ginga support for geolocation, SVG and SSML | UnB |
Phase 2 tests are expected to be performed in the second half of 2021. Once finalized, the testing and evaluation reports are going to be made publicly available by the SBTVD Forum.
