0在1080高端GPU优化LAV和疯狂-VR设置

我花了很多时间试验 mad-vr 和 lav 试图找到输出到 1080p 投影仪的 GTX 1050Ti 的最佳设置. 更高分辨率显示器的设置将非常不同, 但由于 4k 投影仪目前如此昂贵, 对于真正的“家庭影院”体验,1080p 是大多数人的极限.

The first thing to do in mad­vr is to set up pro­files for dif­fer­ent res­ol­u­tion videos — 1080p videos will require far less work than much lower or high­er res­ol­u­tions, 例如:. 360p (需要大量的工作以及高档) 或4320p (takes a lot of decod­ing). 我也有 2 dif­fer­ent low-res­ol­u­tion pro­files, one of which gets filtered by file exten­sion so I can use dif­fer­ent set­tings for par­tic­u­larly low qual­ity old divx videos.

下一个, spend some time read­ing an up-to-date art­icle about all the set­tings. Many guides get out of date as the avail­able set­tings change so make sure the inform­a­tion is up-to-date.

一些 use­ful inform­a­tion on which decod­ing mode to use in LAV is avail­able. I recom­mend DXVA2 Nat­ive (不回拷)

Fun­da­ment­ally, mad­vr is pro­cessing lots of frames per second. So it can­’t spend very long on each frame to main­tain smooth play­back. Render times over 40ms will almost cer­tainly res­ult in dropped frames. The frame rate of the con­tent will also mat­ter: 60FPS比24fps的更难的工作. You may want to have dif­fer­ent pro­files for dif­fer­ent frame-rate content.

帧率Max­im­um render time
60FPS16女士
50fps / 48fps20女士
30FPS33女士
25fps / 24fps40女士

在尺寸方面, I group them as there are a lot of dif­fer­ent poten­tial sizes. Very little con­tent is in 4:3 比, so in most cases the con­tent will be either 16:9 或将被遮幅式

SD con­tent is usu­ally 360p, 480p或576P. As 360p is so rare I focus on 480p con­tent for SD as set­tings suit­able for 480p60 will cope with 576p as well. I then have cat­egor­ies for 720p, 1080p, 2160p和4320p.
然而, I recom­mend using the width of the con­tent, rather than the height in pro­cessing rules. 你很可能会遇到的最广泛的格式是UltraPanavision70这是 2.76:1. Using this aspect ratio would see 720p con­tent have an actu­al res­ol­u­tion of 1280×464. Many videos in these wider formats have had the let­ter­box­ing cut off, and the prob­lem of defin­ing sizes begins…

There are formats below 360p but you are very unlikely to have any watch­able videos in those formats.

格式typ­ic­al heighttyp­ic­al width
360p360640
480p480640–854
576p576704–720
720p534–720960‑1280
1080p全高清800‑10801440–1920
4ķ2160P UHD1600–21602880–4096
8ķ4320p SUHD3200–43205760–8192

所以, to be com­pre­hens­ive we need rules for both width and height of the video. Any video with a height great­er than 2160 or a width great­er than 4096 will have to be regarded as great­er than 4k, 所以我们把它作为8K, 等等

格式min­im­um height+1min­im­um width+1
4320p21604096
2160p10802048
1080p7201280
720p576720
SD00

所以, the fol­low­ing set of rules would do the job to group by both res­ol­u­tion and to split into 4 fram­er­ate groups (59–60fps; 47–50fps; 29–30fps; 23–25fps)

You may well wish to use a smal­ler num­ber of group­ings as it is likely you will get a lot of over­lap in set­tings with some of these set­tings. I find that I only need to split by fram­er­ate for the lower resolutions.

I will con­tin­ue to tinker and optim­ise my own set­tings, and whenev­er I have found improve­ments I will update them below.

My set­tings are as follows

SD-LOWQ

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SD

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720p

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1080p

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