Log in

View Full Version : madVR - high quality video renderer (GPU assisted)


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 [953] 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329

Sebastiii
8th December 2017, 13:17
It works just fine on NVIDIA without FSE.

Agreed :)

mclingo
8th December 2017, 13:37
Agreed :)

is FSE just required for AMD cards then?, they deal with MVC frame packed 3D differently.

HillieSan
8th December 2017, 13:40
@mclingo

Have you tried to set video frames from 8 to 4?

in rendering->exclusive mode->

Also try to set GPU queue size from 8 to 4 and see if it changes things

in rendering->general settings->

This has fixed FSE issues with some here in this forum. I will try it soon and see if it helps.

mclingo
8th December 2017, 13:41
@mclingo

Have you tried to set video frames from 8 to 4?

in rendring->exclusive mode->

This has fixed FSE issues with some here in this forum. I will try it soon and see if it helped.

i'll try that but if we dont need FSE why use it, people are telling me its not required for MVC playback but I cant get it without FSE turned on, something odd going on here.

HillieSan
8th December 2017, 13:47
True. I have moved from FSE to fullscreen windowed this week and it works fine. I am not using 3D. Anyway I will lower the buffers and see what happens.

mclingo
8th December 2017, 14:18
True. I have moved from FSE to fullscreen windowed this week and it works fine. I am not using 3D. Anyway I will lower the buffers and see what happens.

are you saying MVC 3D works fine or just general playback?

Are you sure its not converting it to SBS, if your projector is automatically sensing 3D SBS it might switch to that mode and you'd never know.

best way to check is turn 3D off on the projector while its playing, if you see two images its SBS.

el Filou
8th December 2017, 15:55
reclock is buggy as hell with creators version of windows 10. I dropped it completely.Only when using FSE mode, Windowed is fine. It's all the fault of Microsoft's "full screen optimisation" changes, really.

sorry i misread, thanks for your help. Any idea why i'm having to use 23p display mode instead of 24p? which i've used with AMD card for over 10 years'23 Hz' is supposed to be 23,976 and '24 Hz' 24,000; but if the display is HDMI and uses standard TV modes, Windows normally applies 23,976 even if you select 24 Hz (for compatibility: no correctly authored consumer content is supposed to be 24,000 Hz).
Did you maybe enable some trick to force real 24,000 Hz to the display, or are you playing a 24,000 fps movie?
A frame repeat every 40 seconds is the typical symptom of playing 23,976 material at 24,000 Hz, and a drop every 40 seconds when playing 24,000 (i.e. badly mastered) material at 23,976 Hz.

steakhutzeee
8th December 2017, 15:56
Evening, in the section i posted the screenshot below, i always used NGU Sharp with luma doubling setted to high. All the rest let madvr decide.

Yesterday i saw a youtube video where the user suggested to use these settings, what do you think? I'm not expert so i'm testing:

https://postimg.org/image/nis3mwkjv/

Another question, if i use Ctrl J during video, i can see that my monitor frequency is 59,9 or something similar. Never 60. Is this right this way?

At the moment i turned back my settings, only ngu sharp with doubling on high. It looks better this way. But so why that video suggests the configuration i posted? I want to learn, what's the use of those settings?

mclingo
8th December 2017, 16:01
Only when using FSE mode, Windowed is fine. It's all the fault of Microsoft's "full screen optimisation" changes, really.

'23 Hz' is supposed to be 23,976 and '24 Hz' 24,000; but if the display is HDMI and uses standard TV modes, Windows normally applies 23,976 even if you select 24 Hz (for compatibility: no correctly authored consumer content is supposed to be 24,000 Hz).
Did you maybe enable some trick to force real 24,000 Hz to the display, or are you playing a 24,000 fps movie?
A frame repeat every 40 seconds is the typical symptom of playing 23,976 material at 24,000 Hz, and a drop every 40 seconds when playing 24,000 (i.e. badly mastered) material at 23,976 Hz.

no seriously, i've always had my display modes set to 24p and had no issues until recently, I wasnt using reclock either.

What are your thoughts on FSE and 3D MVC, people are stating quite categorically 3D MVC should work without FSE but in the years i've been using this i've never had it work without FSE ticked.

iSeries
8th December 2017, 16:39
no correctly authored consumer content is supposed to be 24,000 Hz).

Both 23.976fps and 24fps are legitimate frame rates according to the blu ray standards

HillieSan
8th December 2017, 16:43
are you saying MVC 3D works fine or just general playback?

Are you sure its not converting it to SBS, if your projector is automatically sensing 3D SBS it might switch to that mode and you'd never know.

best way to check is turn 3D off on the projector while its playing, if you see two images its SBS.

I am not using 3D.

mclingo
8th December 2017, 17:06
any other AMD card users with a 3D TV that can play 3D MVC frame packed rips?

huhn
8th December 2017, 17:15
maybe give people the chance to test it on a weekend?

mclingo
8th December 2017, 17:43
yeah no rush, I can use my system in the meantime, just not KODI as i'm getting black screen on every stop, got a few things to try though tonight regarding this. just thought someone would actually know this for sure without having to test it, its also on by default in MADVR.

el Filou
8th December 2017, 18:40
If that is useful to anyone, I've tried the new driver 388.59 and the bug I had with the 'offset' in brightness levels (clipped whites + washed out blacks) in RGB Full on drivers 384-385 with my 1050 Ti is now fixed. I never got an official acknowledgement from NVIDIA when I reported, so I wonder if maybe they took note of it but filed it 'fix later'. Lesson learned: if you've got a 'limited issue' bug, just report then wait for the next major driver branch instead of hoping they will fix it in the current one. :D
(Edit: it's also a testimony to how difficult Windows 10 is to support, with at least 3 different versions for hardware vendors to test for concurrently, plus Win7 and Win8.1)

Both 23.976fps and 24fps are legitimate frame rates according to the blu ray standardsBut is it a good idea to use it? I feel like 23,976 is the more compatible option of the two, I don't get why studios would want to use 24.

SirSwede
8th December 2017, 18:44
Will a GTX1060 be enough for upscaling a 720p, 50 or 60 fps, video to 4K with the best settings?
Or should I go for the 1070, just to be sure?

The price difference where I live between this two is HUGE!

Sebastiii
8th December 2017, 18:45
is FSE just required for AMD cards then?, they deal with MVC frame packed 3D differently.

Maybe i can't or can confirm it like i'm Nvidia owner but for sure no more FSE on my and MediaPortal :P and 3D MVC is working

huhn
8th December 2017, 18:48
But is it a good idea to use it? I feel like 23,976 is the more compatible option of the two, I don't get why studios would want to use 24.

why not there is a reason a PC supports 23p and 24p.
it is very likely that movies are still created in 24p for cinema and just transfers to 23p.

el Filou
8th December 2017, 19:11
why not there is a reason a PC supports 23p and 24p.My bad, you're right. I just tested and true 24/60 works. Is the 'hack Direct3D to make 24/60 work' in madVR only needed for FSE mode?

it is very likely that movies are still created in 24p for cinema and just transfers to 23p.
Yes I was only thinking about consumer media transfers.

huhn
8th December 2017, 19:15
My bad, you're right. I just tested and true 24/60 works. Is the 'hack Direct3D to make 24/60 work' in madVR only needed for FSE mode?

i don't know anymore.

Asmodian
8th December 2017, 20:02
Will a GTX1060 be enough for upscaling a 720p, 50 or 60 fps, video to 4K with the best settings?
Or should I go for the 1070, just to be sure?

No, a 1070 would not be enough for the "best" settings. A 1080 Ti is just enough for almost the best settings as long as you don't use too many enhancements and/or artifact removal options.

SirSwede
8th December 2017, 20:08
No, a 1070 would not be enough for the "best" settings. A 1080 Ti is just enough for almost the best settings as long as you don't use too many enhancements and/or artifact removal options.

Thanks for that! :thanks:

What would it take to upscale 720p based on your settings.bin?

Asmodian
8th December 2017, 21:27
720 is probably one of the hardest modes (when going to 4K) in my settings.bin. It probably needs a full 1080 Ti, but hopefully one without an overclock or power target increase. My Titan X, with the same number of cores, can run all my settings at stock.. but 720p might need an increase to the power limit. :o

austonrush
8th December 2017, 23:30
no seriously, i've always had my display modes set to 24p and had no issues until recently, I wasnt using reclock either.

What are your thoughts on FSE and 3D MVC, people are stating quite categorically 3D MVC should work without FSE but in the years i've been using this i've never had it work without FSE ticked.

You do not need FSE if you have windows 10! Period

Windowed mode works perfect

austonrush
8th December 2017, 23:32
no seriously, i've always had my display modes set to 24p and had no issues until recently, I wasnt using reclock either.


I've always had to set mine to 23p to get it to work. I have only ever used nvidia graphic cards. I think it is totally display specific.

austonrush
8th December 2017, 23:34
Will a GTX1060 be enough for upscaling a 720p, 50 or 60 fps, video to 4K with the best settings?
Or should I go for the 1070, just to be sure?

The price difference where I live between this two is HUGE!

I have a 1070 so, you know my opinion ;) lol A 1080 TI would be great but, that is out of my price point.

austonrush
8th December 2017, 23:37
My bad, you're right. I just tested and true 24/60 works. Is the 'hack Direct3D to make 24/60 work' in madVR only needed for FSE mode?



I'm not sure it is required anymore for windows 10. I don't have it checked off anymore. Does anyone use it still?

mclingo
8th December 2017, 23:56
You do not need FSE if you have windows 10! Period

Windowed mode works perfect

thanks but yes we already know this, NVIDIA cards work, several people have already stated this, AMD cards dont, I cant get mine to work anyway and nobody has stated their works either yet.

FSE has to be on for me or I get no MVC 3D.

mclingo
9th December 2017, 00:05
i fixed the black screen issue, its not KODI DS or MADVR,...what was happening was when I pressed x on my remote to stop it would stop but also minimise to desktop, my desktop is black and my start menu hidden, hence the black screen. I think this was actually a problem with my AUTOHOTKEY script, I had a key mapped to that, bizarrely it was sending x + #d which is stop and minimise, very odd, there was nothing in my script. I deleted the line and re-added and now all ok.

So i'm now just left with the mystery why I have to use FSE mode to get MVC framepacked 3D when the whole world (mostly NVIDIA users) tells me I shouldnt need it.

iSeries
9th December 2017, 00:15
But is it a good idea to use it? I feel like 23,976 is the more compatible option of the two, I don't get why studios would want to use 24.

Agreed, and it is pretty rare nonetheless.

HillieSan
9th December 2017, 01:08
thanks but yes we already know this, NVIDIA cards work, several people have already stated this, AMD cards dont, I cant get mine to work anyway and nobody has stated their works either yet.

FSE has to be on for me or I get no MVC 3D.

?

AMD works with fullscreen windows mode!

You need to stop using reclock or FRC! Try to get your card to work without these tools!!!! See my settings as I gave you before!!!

I think MVC 3D will work. AMD is great, very stable, but does not do very high settings.

SirSwede
9th December 2017, 08:07
720 is probably one of the hardest modes (when going to 4K) in my settings.bin. It probably needs a full 1080 Ti, but hopefully one without an overclock or power target increase. My Titan X, with the same number of cores, can run all my settings at stock.. but 720p might need an increase to the power limit. :o

Wow! Really? Okay, cheers for this. You have been very helpful and I might as well wait and try and run your settings.bin until I have saved up for the 1080, as most of the material I watch is 720p@25fps and will be doing so on my new 4K TV.

Jesco
9th December 2017, 09:12
thanks but yes we already know this, NVIDIA cards work, several people have already stated this, AMD cards dont, I cant get mine to work anyway and nobody has stated their works either yet.

FSE has to be on for me or I get no MVC 3D.

Can you get 2D playing on your AMD, in FSE? As I stated yesterday, I can play 2D on my AMD in FSE without any problem. Using mpc-hc that is.

Asmodian
9th December 2017, 10:17
Wow! Really? Okay, cheers for this. You have been very helpful and I might as well wait and try and run your settings.bin until I have saved up for the 1080, as most of the material I watch is 720p@25fps and will be doing so on my new 4K TV.

To be honest disabling quadrupling for 720p is not a bad idea at all. Jinc offers very good quality for taking NGU doubled 720p to 2160p directly, the quality difference between that and downscaling from quadrupled 2880p is minor. My settings.bin is meant to maximize quality for a 1080 Ti+ user, not be an optimal quality/power point or anything close to that. It is the settings I use, minus changes I sometimes make for specific sources. :o

It would be interesting to create a few config options I consider optimal for different power levels without targeting specific GPUs. My current one would probably need to be called "heater mode". I do think I could do a much more reasonable profile for max quality, but without spending power just because it is available. I'll get started. :)

huhn
9th December 2017, 10:42
even lanczos3 for 1440p to 2160p using a 720p source is totally fine.
after doubling the benefits of a really good scaler have a huge diminishing return

SirSwede
9th December 2017, 10:49
even lanczos3 for 1440p to 2160p using a 720p source is totally fine.
after doubling the benefits of a really good scaler have a huge diminishing return

Really? :thanks: for this!

You don't happen to have any recommended settings for watching 720p on a 2160p screen, using a GT740 (GDDR5), that I can use until I am able to get my hands on a GTX 1080?

A GT740 will not be able to do any doubling at all, will it? :o

SirSwede
9th December 2017, 10:54
To be honest disabling quadrupling for 720p is not a bad idea at all. Jinc offers very good quality for taking NGU doubled 720p to 2160p directly, the quality difference between that and downscaling from quadrupled 2880p is minor. My settings.bin is meant to maximize quality for a 1080 Ti+ user, not be an optimal quality/power point or anything close to that. It is the settings I use, minus changes I sometimes make for specific sources. :o

It would be interesting to create a few config options I consider optimal for different power levels without targeting specific GPUs. My current one would probably need to be called "heater mode". I do think I could do a much more reasonable profile for max quality, but without spending power just because it is available. I'll get started. :)

That'd be incredibly helpful!

I have stuck with v. 0.87.10 longer than I should and mostly because the amount of options now make my head spin. :scared:

SamuriHL
9th December 2017, 16:54
To be honest disabling quadrupling for 720p is not a bad idea at all. Jinc offers very good quality for taking NGU doubled 720p to 2160p directly, the quality difference between that and downscaling from quadrupled 2880p is minor. My settings.bin is meant to maximize quality for a 1080 Ti+ user, not be an optimal quality/power point or anything close to that. It is the settings I use, minus changes I sometimes make for specific sources. :o

It would be interesting to create a few config options I consider optimal for different power levels without targeting specific GPUs. My current one would probably need to be called "heater mode". I do think I could do a much more reasonable profile for max quality, but without spending power just because it is available. I'll get started. :)

That'd be pretty sweet, actually. I just started over with my 1060 settings now that I've rebuilt the machine with the replacement. I suspect I'm going to start tweaking it again, but, I'm only doing 1080p on a panny plasma. Still, it'd be nice to have everything setup properly for when my golden goose comes in and I can buy a 2016 LG OLED 3D capable 4k screen. LMAO :D My 1060 is 6gb and works very well for 1080p....no surprise there.

SirSwede
10th December 2017, 11:46
GTX1070: Can use NGU Sharp/very high luma, with Lanczos3AR (only NGU high with JincAR), with NGU AA/Sharp high chroma & medium strength RCA, instead of high strength setting. Still comparing, Lanczos3AR vs JincAR. Best choice, might, depend on need for RCA high strength & Madashi, said, he is working on "free" RCA high, for use, with NGU Sharp. Thanks for this.


Sorry for being a n00b; what's "RCA"?

Asmodian
10th December 2017, 11:55
Remove Compression Artifacts

SirSwede
10th December 2017, 12:11
Remove Compression Artifacts

Thanks! I must be blind, can't find that option at all (I'm on 0.92.4).

ryrynz
10th December 2017, 12:15
Not blind, it was added in 0.92.5..
Just update your madVR already. Also a new version will probably be out in the next few days.

SirSwede
10th December 2017, 12:21
Not blind, it was added in 0.92.5..
Just update your madVR already. Also a new version will probably be out in the next few days.

Ok. Thanks.

HillieSan
10th December 2017, 12:49
Try lowering the the "how many video frames shall be presented in advance: to 4 or less than default of 8. It worked for me on my AMD card.

I tried this yesterday and it did not solve the problem. Actually, the problem is that FSE sometimes locks my RX 480. My both screens go black and they are (often) frozen. Then I need to reset my PC.

Manni
10th December 2017, 13:10
@Madshi

I posted about this by mistake here https://forum.doom9.org/showpost.php?p=1826900&postcount=403

As Nev has confirmed HLG wasn't supported yet, any chance we could add support for it, even if only in passthrough?

At the moment it's mostly demo files, but real content is coming, at least in streaming/broadcast in the UK/EU/Japan, for example this http://www.bbc.co.uk/news/technology-42225220.

As it's much easier to implement than Dolby Vision, it would be nice to have such support in MadVR/MadTPG, not necessarily for playback but for testing/calibration, especially of non HLG compatible displays such as the pre-2018 JVCs (already have implemented an experimental HLG gamma curve on my rs500, it seems to be working great).

mclingo
10th December 2017, 13:36
I tried this yesterday and it did not solve the problem. Actually, the problem is that FSE sometimes locks my RX 480. My both screens go black and they are (often) frozen. Then I need to reset my PC.

same happens here, however, i think this is a driver issue as if i go back to 17.10.2 several things happen.

1. lockups change to hdmi loss instead which can be retrived with a devcon reset so no need to power cycle PC.

2. using 1080p24 / 2160p24 instead of 23p works again, I get no frame drops or repeats in hours.

3. HDR plays ok but is choppy, no frame drops, I think this driver version breaks HEVC decoding.

So we either use latest version of everything and get random lockups, I get them sometimes when FSE is disabled when coming out of HDR stuff so DIRECT3d is also problematic, I think its the 23p thing, could me my LG OLED doesnt properly support that.

or we have a reasonable stable system on older drivers and no HDR playback.

I'm yet to try any later ATI versions, i'm getting a bit tired of all this now.

I may even put my Gefore 1050 back in.

mclingo
10th December 2017, 13:59
might of stumbled on a sweet spot for 4K RX users using KODI DS (havent tried MPC yet)

- AMD driver 17.11.2 (fixes HEVC HDR playback - seems to be on the only stable drive, latest locks up using FSE
- Use 1080p for KODI DS GUI, if you use 4k when you stop a movie, usually a 3D one you get HDMI loss which can only be retrieved with a DEVCON restart.
- use FSE in MADVR to get 3D MVC (doesnt work without)
- use DIRECT3D in MADVR - HDR passthrough doesnt work without.
- use full screen window in KODI DS, seem more stable.
- user 24p display modes not 23p, this also causes lockups and HDMI loss for me but it could be an issue with my LG OL

i'll need a few days to see how stable this is, KODI doesnt tend to switch back to 4k desktop on closing but i've had this problem for ages so its unrelated.

HillieSan
10th December 2017, 14:00
same happens here, however, i think this is a driver issue as if i go back to 17.10.2 several things happen.


I think it only happens with NGU. I will check this probably this evening.


2. using 1080p24 / 2160p24 instead of 23p works again, I get no frame drops or repeats in hours.

Good to hear :-)

3. HDR plays ok but is choppy, no frame drops, I think this driver version breaks HEVC decoding.

I had this problem too. I can't remember exactly what i did to solve it. I do remember that it was a weird problem, because I thought that all settings were correct. One more thing I had to do was to add "2160p23, 2160p24, 2160p25, 2160p59, 2160p60" to display modes->list all display modes madVR may switch to->. Otherwise madVR picked the wrong frequency and it selected to wrong resolution (1080 instead of 2160).

So we either use latest version of everything and get random lockups, I get them sometimes when FSE is disabled when coming out of HDR stuff so DIRECT3d is also problematic, I think its the 23p thing, could me my LG OLED doesnt properly support that.

Except for the lockups with FSE, all is working fine with the RX 480. HDR and 4K works good. I use the latest Windows version and the latest drivers.

EDIT: use D3D11 and not D3D9 in LAV and madVR

Yoshi
10th December 2017, 16:08
Although the following quotes are from years ago, since they are still up do date and worth to be discussed, I want to bring up the following again, especially based on what Madshi posted at that time.

@Mark, all the resampling filters are a compromise between aliasing, sharpness and ringing. There is no filter which is best in every category.

Considering that video signals are essentially the same as audio signals, I wonder why in practice it seems to be such a challenge to get it right in the video domain. I might be corrected but I think when it comes to audio, taking any voodoo/audiophile arguments aside, filters which leave the usable bandwidth quite intact while suppressing any other range which could cause aliasing are rather easily achievable using cheap and decent technics nowadays.

Do you want higher frequency response and live with ugly jaggies? Or do you want smooth jaggies and can live with a lower frequency response?

So what is the reason that already when it comes to low-pass-filtering of images it seems to be such a trade-off between sharpness and aliasing to be made still in 2017?

For anyone considering my comparison between video and audio far-fetched and "unorthodox": both are the same phenomenon at least in their waveform appearance - amplitude change over time. So any video signal, be it 4K in BT2020 or whatever nowadays fancy color space could be represented by a pure analog waveform to be digitized. Hence I wonder why a downscale is still such a challenge. Couldn't one apply the same already proven tools theoretical in the analog domain of the signal to archieve better results then?

However, dithering down to 8bit should produce very good results. I don't think anyone could see a difference between dithered 8bit and 10bit.

I'd be interesting in your opinion on the following:

Wouldn't it be possible to reproduce any color space and any gamut and any brightness and gradient with any bitdepth, be it one bit only given ideal dither implementation? The only drawback of lower bitdepth should be a higher noise floor, effectively preventing darker tones to be resolved as they would be masked by the dither and quantization noise of course. Hence I'm not saying that the bitdepth is irrelevant but I'd claim that any color or tonal variation should be able to effectively displayed with whatever bitdepth down to the noise floor at least.

Audio domain teaches that when applying either, there are no stair steps or discrete loudness levels depending on the bitdepth but only the noise floor which is getting higher of about 6dB per bit. That the smoothness of an audio signal depends on the sampling rate or bitdepth is a very common misconception so I wonder why it is still so common with pictures and video. Everywhere, one can read "the higher the bitdepth, the higher the available steps", etc.

Yes, please. madVR will most probably never do any kind of intermediate frame interpolation. So this discussion doesn't really belong here.

Well, at least from an admittedly quite theoretical point of view, the signal theory would dictate you to do so because the individual frames of a movie are snapshots or samples according to Nyquist/Shannon which - just as pixels - were never supposed to be shown separately but reconstructed as a continuous movement. ;)

Most people would say that the higher a frame rate, the smoother the movie and movement of a movie will become. Theoretically, that's not true: the only thing which changes is the nyquist frequency. In that case: what speed of movement can be reconstructed without aliasing. Anything else, including the frame-by-frame display of a movie - strictly speaking - is wrong to begin with.

Basically it's the same as with dithering vs debanding: Dithering tries to make sure that madVR processing does not add new banding artifacts.
I recognized that when making a screenshot of a movie when using madVR and dithering to 1-bit only, while error diffusion dithering results in images containing only up to 8 colors just as to be expected, with random dithering, several thousand colors are counted and I wonder why. Apparently, some fusion between neighbour pixels takes place, raising the amount of colors, but why?

mclingo
10th December 2017, 17:57
what magic are people using to get decent timings out of their nvidia cards, got a 1050 and no matter what I do cant better 23.971. I tried adding a custom res, when I set it as 23hz and 23.976 it saves it as a 24hz res and changes the time to 24,000, cant get the settings to hold at all, what am i doing wrong?

I set it up, click test, it all looks ok but when its saved it all wrong.