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Thread: HDR vs HDR, and the old PS4 getting "HDR"

  1. #1

    HDR vs HDR, and the old PS4 getting "HDR"

    How it works for the original PS4 is still a mystery, and so far there’s no media contents or games using HDR on it.

  2. #2
    HDMI 1.4 has enough bandwidth to transport the video-signal + additional metadata for 12 bit color depth and HDR at 1080p. Deep Color (10, 12 or 16 bit per channel) already came with HDMI 1.3 and the metadata channel they use for HDR10 in HDMI 2.0a was already introduced with HDMI 1.4.
    So it could be, that Sony just transmits HDMI 2.0a formatted data over a HDMI 1.4 hardware connection.

  3. #3
    Would TVs accept 2.0a formatted data over a connection they saw as 1.4?

  4. #4
    If the developers were not total standard-Nazis most likely yes. Implementations are often way more relaxed than the standard definitions. In the end those devices negotiate many different aspects of a transmission step by step (resolution, frequency, bit depth, color space, HDCP level, audio stream capabilities and so on). There is no real reason to say no to a request to use for example the Rec. 2020 color space or to not use the HDR10 metadata if supported just because the connection is 1.4.

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