HDMI 2.1a comes with new HDR capability

SBTM offers the same as AMD FreeSync Premium Pro, only implemented as standard.

The upcoming CES holds some interesting things for the development of the HDMI interface, as the TFTCentral According to a report, the HDMI Licensing Administrator revealed in a preliminary presentation that an HDMI 2.1a specification is being developed that will optionally introduce SBTM, i.e., Source-Based Tone Mapping capability.


Technically, this innovation provides exactly the same as the AMD HDR specification, formerly known as FreeSync 2 HDR, but now labeled FreeSync Premium Pro, which eliminates display-side tone mapping, enabling the display on the source system. display the result of tone mapping directly.

(source: TFTCentral)

The difference is that while AMD’s solution has only worked with compatible Radeons and FreeSync Premium Pro-certified displays, SBTM, which is part of HDMI 2.1a, will be standard, so it’s not just AMD’s graphics drivers. However, it is important to note that the SBTM itself is an optional capability, so simply indicating compatibility with the HDMI 2.1a specifications on a given display does not automatically mean that the SBTM is supported, you should check with the hardware manufacturer. This factor is not new, as some features of HDMI 2.1 are exactly the same, considering ALLM or VRR here, which are also optional.

Otherwise, it will not be enough to support the SBTM itself on the side of the display or the given system, you will also need to prepare the running software for it. Again, the situation here is the same as with AMD’s FreeSync Premium Pro, which can be supported with separate API add-ons and service libraries, and SBTM will need the same because the application needs to collect some display data to get the right tone. use mapping and then display the result well. The best solution for this would be for graphical API developers to write factory-level support for SBTM, to which vendors could respond with their own implementations, but no announcements have been made yet.

Source: Hírek és cikkek – PROHARDVER! by prohardver.hu.

*The article has been translated based on the content of Hírek és cikkek – PROHARDVER! by prohardver.hu. If there is any problem regarding the content, copyright, please leave a report below the article. We will try to process as quickly as possible to protect the rights of the author. Thank you very much!

*We just want readers to access information more quickly and easily with other multilingual content, instead of information only available in a certain language.

*We always respect the copyright of the content of the author and always include the original link of the source article.If the author disagrees, just leave the report below the article, the article will be edited or deleted at the request of the author. Thanks very much! Best regards!