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Source: Netflix Talks Dolby Vision and HDR10 http://www.streamingmedia.com/Ar ... d-HDR10-118853.aspx
HDR is 10-bit. Does this mean to get the equivalent quality of 4K@16Mbps in 8-bit, you need to encode to 20Mbps?
Our CE4 profiles are all 10-bit whether Rec. 709 or HDR, and our 4K bitrate maxes at 16Mbps. Moving from 8-bit to 10-bit does not significantly impact bitrate. FYI, Dolby Vision is natively 12-bit in the ITP color space. At encode, there is preprocessing and shaping into 10-bit for distribution and then it is mapped back to 12-bit on a Dolby Vision-enabled TV. |
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