The only box that supports Youtube HDR is Chromecast Ultra. Youtube hdr requires vp9 profile 2 10-bit decoding that MI Box does not support now. Why don't you try using the youtube app on your C7P directly (webos 3.0)? I heard all 2017 LG OLED TVs support youtube HDR directly. I have only C6P and E6P with webos 2.5 and they don't support Youtube HDR.
从MI BOX 采用S905X-H芯片规格上看,它是支持vp9 profile 2 10-bit解码的,但实际 上的问题可能是出在软件上。 早有人发现这个问题了,所有基于S905X, S912,S912-H 的盒子不会输出 HDR10 metadata from VP9 profile 2 videos,当然没HDR效果 另外对于HLG(Hybrid Log Gamma, 第三种HDR规格)需要 HDMI 2.0b 支持,而S905X-H , S912等盒子只支持 HDMI 2.0a Xiaomi Mi Box (US) specifications: * SoC – Amlogic S905X-H quad core ARM Cortex-A53 @ up to 2.0GHz with penta-core Mali-450MP GPU @ 750 MHz * System Memory – 2GB DDR3 * Storage – 8GB eMMC flash * Video Output – HDMI 2.0a up to 4K @ 60 Hz with HDCP 2.2 and CEC support * Audio Output – HDMI, optical S/PDIF and 3.5mm audio jack * Video Codecs – VP9 Profile-2 & H.265 MP-10 up to 4K @ 60 fps, H.264 AVC up to 4K @ 30 fps, H.264 MVC up to 1080p60 * Audio Codecs – DTS 2.0+ digital out, Dolby digital plus up to 7.1 pass- through * HDR – HDR10 and HLG HDR processing * Connectivity – 802.11 b/g/n/ac Wi-Fi and Bluetooth 4.0 * USB – 1x USB 2.0 host ports * DRM – Widevine L1 + PlayReady 3.0 * Power Supply – 5.2V/2.1A * Dimensions – 101 x 101 x 19.5 mm * Weight – 176.5 grams
【在 s*******h 的大作中提到】 : The only box that supports Youtube HDR is Chromecast Ultra. Youtube hdr : requires vp9 profile 2 10-bit decoding that MI Box does not support now. : Why don't you try using the youtube app on your C7P directly (webos 3.0)? I : heard all 2017 LG OLED TVs support youtube HDR directly. I have only C6P and : E6P with webos 2.5 and they don't support Youtube HDR.