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发表于 2016-4-3 20:59
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本帖最后由 bluejd 于 2016-4-3 21:01 编辑
很多已发行的UHD Blu-ray已经采用HDR,强制标准就是HDR10 , 至于Dolby Vision以及Philips HDR等都是可选HDR层,规范里写的相当清晰。
http://www.blu-raydisc.com/asset ... itePaper_150724.pdf
The BDMV HDR format is characterized by the following properties:
- BDMV HDR video stream is an HEVC video stream (10bit, YCbCr 4:2:0).
- color primaries: BT.2020 with non-constant luminance
- EOTF(Electro-Optical Transfer Function): SMPTE 2084
- Metadata: SMPTE 2086(Mastering display color volume) metadata, Maximum Content Light Level
- (MaxCLL), and Maximum Frame-Average Light Level (MaxFALL)
The Dolby Vision video stream is composed of a BDMV HDR video stream and a Dolby Vision enhancement layer video stream. The enhancement layer is an HEVC video stream with embedded Dolby Vision metadata. The Dolby Vision is characterized by the followings:
- color primaries: BT.2020 with non-constant luminance
- EOTF(Electro-Optical Transfer Function): SMPTE 2084
- Bit depth: 12bit (combination of BDMV HDR video stream and Dolby Vision enhancement layer)
- Enhancement layer video stream: 1920x1080 resolution, same frame rate with the BDMV HDR
- video stream, 100Mbps or lower together with the BDMV HDR video stream
The Philips HDR video stream is a BDMV HDR video stream with Philips HDR SEI messages.
The Philips HDR SEI messages is a metadata to control down-conversion of the dynamic range of the BDMV HDR video stream to a dynamic range of the connected display.
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