Selon Dolby, la puce de décodage HDR Dolby Vision à l’intérieur des TV compatibles peuvent décoder un flot Dolby Vision double couche à 12 bits ou un flot Dolby Vision mono couche.
“The Dolby Vision system is the only HDR system providing the option of dual-layer or single-layer, approaches. Dolby uses a dual-layer system to provide HDR along with backward compatibility in distribution, Vlaicu explained. That approach uses some additional bandwidth. A single-layer approach is used when backward compatibility is not needed. For playback, the Dolby Vision chipset implementation in set-top boxes and in televisions understands either version of Dolby Vision, and delivers the appropriate version for the capabilities of the display. The dual-layer option lets the content distributor decide whether to send a dual-layer version that is backward compatible with standard dynamic range and Rec-709 or only a single layer with Dolby Vision enhanced content.
The newly announced Warner Bros. Dolby Vision-enhanced titles that will be available over Vudu will include dual-layer streaming, with backward compatible Rec-709 and SDR encapsulated in the overall stream, along with Dolby Vision enhancement on top of it.
Vizio said that the Vizio Internet Apps smart TV platform running Walmart’s Vudu over-the-top movie app will offer six 4K Ultra HD Dolby Vision titles from Warner Bros.”
http://hdguru.com/vizio-launches-m-seri ... by-vision/
La technologie HDR Dolby Vision mono couche est-elle compatible avec la technologie HDR10 (aussi appelée SMPTE HDR) mono couche à 10 bits de l’Ultra HD Blu-ray de la Blu-ray Disc Association, qui serait la même que celle de Samsung présentée au CES 2015 ?
Apparemment :
§ Compatibilité HDR - Flot vidéo HDR Dolby Vision double couche entrant :
. TV UHD HDR Dolby Vision Rec 2020 : oui, flot HDR Rec 2020
. TV UHD HDR10 Rec 2020 : oui, flot LDR/SDR Rec 709
. TV UHD non-HDR Rec 709 : oui, flot LDR/SDR Rec 709
§ Compatibilité HDR - Flot vidéo HDR mono couche entrant :
. TV UHD HDR Rec 2020 : oui, flot HDR Rec 2020
. TV UHD non-HDR Rec 709 : non*
* : Un set-top box approprié pourra décoder le flot vidéo HDR mono couche Rec 2020 entrant en flot vidéo LDR/SDR Rec 709 pour le TV UHD non-HDR Rec 709.
“To ensure the creative vision behind every piece of content is delivered to the consumer as intended, Technicolor is developing the world’s first UHD, High Frame Rate (p60), HDR set-top box. Designed for pay-TV operators looking to leverage the benefits of UHD, the box will decode both HDR and SDR versions of the same content using Technicolor’s backwards-compatible, single-stream HEVC solution for HDR delivery. With this solution, operators will be able to deploy a single set-top box to consumers that will accommodate both current SDR signals and the transition to next generation video technologies.”
“HDR is a standard feature of Ultra HD Blu-ray, part of the Ultra HD specifications to be determined by the UHD Alliance and under consideration for the next generation broadcasting standard ATSC 3.0.”
http://www.digitaltvnews.net/?p=25783Ampli vidéo/audio universel (Dolby Atmos, DTS:X, ...) : acquis
TV HDR universel (HDR10, Dolby Vision, YouTube HDR, HLG, Dynamic HDR) : possible
Agir pour le TV HDR universel !
