- 精华
- 0
- 帖子
- 797
- 威望
- 0 点
- 积分
- 797 点
- 种子
- 63 点
- 注册时间
- 2015-12-28
- 最后登录
- 2024-11-14
|
发表于 2019-2-7 10:40 · 日本
|
显示全部楼层
看了lz的测试之后有些疑问,hdr10的标准是要10bit以上的色深的,8bit 422并不是hdr内容,难道sony是假的hdr吗,同时据自己体感在ui界面的时候确实有些发白,但是游戏进行中是没问题的。
然后查了一下外网的帖子和资料。
As we mentioned before. RGB is uncompressed, while YUV420 is 1/2 compressed. Similarly, YUV422 is 2/3 compressed. It provides better video quality than YUV420 but not so good as RGB. The HDR mode used in PS4 is 10-bit HDR. However, there is no video mode in HDMI 2.0 standard for 10-bit YUV422, so 12-bit YUV422 video mode is used instead, where 2 bits are padded with zero.
In sum, 2160p 12-bit (HDR) YUV422 is the best video quality Sony could provide given this and that limits of HDMI 2.0, and you could only get it when PS4’s video output is set to 2160p RGB. If you choose 2160p YUV420, compared to 2160p RGB, you will get only 1/2 video data for SDR contents, and only 3/4 video data for HDR contents, respectively.
如果上面说的是正确的,sony应该是使用了12bit(其中有空白的2bit)的yuv422格式,已经是能达到的最佳画质。所以自动rgb设置是没问题的。
搜到了日本一个博客的测试
http://suede.cc/2016/11/22/%E7%B ... %BBps-pro%E7%B7%A8/
根据上面的测试,ff15的hdr确实是12bit 422格式的,也印证了上面那个说法,所以我在想是否是系统ui的图像格式和hdr游戏里面的格式有所区别,手里没有能显示色深的设备,lz如果有ff15的话可否测试下游戏画面显示时候的图像格式,或者其他hdr游戏。 |
|