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發表於 2020-4-28 15:55:41
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For profile 5:
• The base layer uses the optional VUI values of 2,2,2,1,0. These values are compliant with the VUI definition in ITU-T H.265, where the first three 2s represent unspecified.
• Within the Dolby Vision context, a profile 5 bitstream must use perceptual quantization with reshaping for EOTF; uses Dolby Vision proprietary IPT color space for color primaries and color matrix; uses full range for range; and uses center-left siting for chroma sample location.
Dolby Vision proprietary IPT color space is similar to BT.2100 ICtCp, where I is similar to I, P similar to Cp, and T similar to Ct.
關鍵問題來了,像ATV4K這類支援profile 5的盒子,播放profile 5內容時,HDMI輸出的是IPT還是轉換成YCbCr輸出呢?
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