Implement VP9 loop filtering (#550)

Unmerged PR from OG Ryujinx (#4367). From @gdkchan:

> The main goal of this change is porting the loop filtering from
libvpx, which should fix the block artifacts on some VP9 videos on games
using NVDEC to decode them. In addition to that, there are two other
changes:
> 
> - The remaining decoder code required to decode a VP9 video (with
headers included) has been added. That was done because it's much better
to test the decoder standalone with a video file. I decided to keep that
code on the emulator, even if some of it is unused, since it makes
standalone testing easier in the future too, and we can include unit
tests with video files.
> - Large refactoring of both new and existing code to conform with our
conding [sic] styles, done by @TSRBerry (thanks!) Some of it has been
automated.
> 
> Since we had no loop filtering before, this change will make video
decoding slower. That may cause frame drop etc if the decoder is not
fast enough in some games. I plan to optimize the decoder more in the
future to make up for that, but if possible I'd prefer to not do it as
part of this PR, but if the perf loss is too severe I might consider.
> 
> This will need to be tested on games that had the block artifacts, it
would be nice to confirm if they match hardware now, and get some
before/after screenshots etc.

Comment from @Bjorn29512:

> Significantly improves the block artifacts in FE: Engage.
> 
> Before:
>
![](https://user-images.githubusercontent.com/110204265/216882414-ec88dbda-7544-4490-8a47-37f074056ae3.png)
> 
> After:
>
![](https://user-images.githubusercontent.com/110204265/216882478-4e81fead-1033-4877-b282-f9cac6d6aa3b.png)

---------

Co-authored-by: gdkchan <gab.dark.100@gmail.com>
Co-authored-by: TSR Berry <20988865+TSRBerry@users.noreply.github.com>

src/Ryujinx/Assets/locales.json

@@ -10412,7 +10412,7 @@
         "ko_KR": "연동 해제",
         "no_NO": "Ikke bundet",
         "pl_PL": "",
-        "pt_BR": "",
+        "pt_BR": "Não Atribuído",
         "ru_RU": "Не привязано",
         "sv_SE": "Obunden",
         "th_TH": "",
@@ -16212,7 +16212,7 @@
         "ko_KR": "시스템 시간 변경",
         "no_NO": "Endre systemtid",
         "pl_PL": "Zmień czas systemowy",
-        "pt_BR": "Mudar a Hora do Sistema",
+        "pt_BR": "Mudar a Data e Hora do Sistema",
         "ru_RU": "Меняет системное время системы",
         "sv_SE": "Ändra systemtid",
         "th_TH": "เปลี่ยนเวลาของระบบ",
@@ -16387,7 +16387,7 @@
         "ko_KR": "게스트 메모리 매핑 및 접속 방법을 변경합니다. 에뮬레이트된 CPU 성능에 큰 영향을 미칩니다.\n\n모르면 호스트 확인 안 함으로 설정합니다.",
         "no_NO": "Endre hvordan gjesteminne tilordnes og åpnes. Påvirker emulator CPU-ytelsen veldig mye.\n\nSett til HOST UNCHECKED hvis usikker.",
         "pl_PL": "Zmień sposób mapowania i uzyskiwania dostępu do pamięci gości. Znacznie wpływa na wydajność emulowanego procesora.\n\nUstaw na HOST UNCHECKED, jeśli nie masz pewności.",
-        "pt_BR": "Altera como a memória do convidado é mapeada e acessada. Afeta muito o desempenho da CPU emulada.\n\nDefina como HOST UNCHECKED se não tiver certeza.",
+        "pt_BR": "Altera como a memória do convidado é mapeada e acessada. Afeta muito o desempenho da CPU emulada.\n\nDefina como HÓSPEDE SEM VERIFICAÇÃO se não tiver certeza.",
         "ru_RU": "Меняет разметку и доступ к гостевой памяти. Значительно влияет на производительность процессора.\n\nРекомендуется оставить \"Хост не установлен\"",
         "sv_SE": "Ändra hur gästminne mappas och ges åtkomst till. Påverkar emulerad CPU-prestanda mycket.\n\nStäll in till \"Värd inte kontrollerad\" om du är osäker.",
         "th_TH": "เปลี่ยนวิธีการเข้าถึงหน่วยความจำของผู้เยี่ยมชม ส่งผลอย่างมากต่อประสิทธิภาพการทำงานของ CPU ที่จำลอง\n\nตั้งค่าเป็น ไม่ได้ตรวจสอบโฮสต์ หากคุณไม่แน่ใจ",
@@ -16512,7 +16512,7 @@
         "ko_KR": "Switch 개발 모델을 모방하기 위해 8GB DRAM이 포함된 대체 메모리 모드를 활용합니다.\n\n이는 고해상도 텍스처 팩 또는 4K 해상도 모드에만 유용합니다. 성능을 개선하지 않습니다.\n\n모르면 끔으로 두세요.",
         "no_NO": "Bruker en alternativ minnemodus med 8GiB i DRAM for og etterligne Switch utvikler modeller.\n\nDette er bare nyttig for teksturpakker eller 4k oppløsningsmoduler. Forbedrer IKKE ytelsen.\n\nLa AV hvis usikker.",
         "pl_PL": "Wykorzystuje alternatywny układ MemoryMode, aby naśladować model rozwojowy Switcha.\n\nJest to przydatne tylko w przypadku pakietów tekstur o wyższej rozdzielczości lub modów w rozdzielczości 4k. NIE poprawia wydajności.\n\nW razie wątpliwości pozostaw WYŁĄCZONE.",
-        "pt_BR": "Utiliza um modo de memória alternativo com 8 GB de DRAM para imitar um modelo de desenvolvimento do Switch.\n\nIsso só é útil para pacotes de textura de alta resolução ou mods de resolução 4k. NÃO melhora o desempenho.\n\nDeixe OFF se não tiver certeza.",
+        "pt_BR": "Utiliza um modo de memória alternativo com 6, 8 ou 12 GB de DRAM para imitar um modelo de desenvolvimento do Switch.\n\nIsso só é útil para pacotes de textura de alta resolução ou mods de resolução 4k. NÃO melhora o desempenho.\n\nDeixe em 4 GB se não tiver certeza.",
         "ru_RU": "Использует альтернативный макет MemoryMode для имитации использования Nintendo Switch в режиме разработчика.\n\nПолезно только для пакетов текстур с высоким разрешением или модов добавляющих разрешение 4К. Не улучшает производительность.\n\nРекомендуется оставить выключенным.",
         "sv_SE": "Använder ett alternativt minnesläge med 8GiB av DRAM för att efterlikna en utvecklingsmodell av Switch.\n\nDetta är endast användbart för texturpaket med högre upplösning eller moddar för 4k-upplösning. Det förbättrar INTE prestandan.\n\nLämna AV om du är osäker.",
         "th_TH": "ใช้รูปแบบ MemoryMode ทางเลือกเพื่อเลียนแบบโมเดลการพัฒนาสวิตช์\n\nสิ่งนี้มีประโยชน์สำหรับแพ็กพื้นผิวที่มีความละเอียดสูงกว่าหรือม็อดที่มีความละเอียด 4k เท่านั้น\n\nปล่อยให้ปิดหากคุณไม่แน่ใจ",
@@ -16637,7 +16637,7 @@
         "ko_KR": "후속 실행 시 끊김 현상을 줄이는 디스크 셰이더 캐시를 저장합니다.\n\n모르면 켬으로 두세요.",
         "no_NO": "Lagrer en disk shader cache som reduserer hakking jo flere ganger du spiller.\n\nLa være PÅ om usikker.",
         "pl_PL": "Zapisuje pamięć podręczną shaderów na dysku, co zmniejsza zacinanie się w kolejnych uruchomieniach.\n\nPozostaw WŁĄCZONE, jeśli nie masz pewności.",
-        "pt_BR": "Salva um cache de shader de disco que reduz a trepidação em execuções subsequentes.\n\nDeixe LIGADO se não tiver certeza.",
+        "pt_BR": "Salva um cache de shader no disco que reduz a trepidação em execuções subsequentes.\n\nDeixe LIGADO se não tiver certeza.",
         "ru_RU": "Сохраняет кэш шейдеров на диске, для уменьшения статтеров при последующих запусках.\n\nРекомендуется оставить включенным.",
         "sv_SE": "Sparar en disk shader cache som minskar stuttering i efterföljande körningar.\n\nLämna PÅ om du är osäker.",
         "th_TH": "บันทึกแคชแสงเงาของดิสก์ซึ่งช่วยลดการกระตุกในการรันครั้งต่อๆ ไป\n\nเปิดทิ้งไว้หากคุณไม่แน่ใจ",

src/Ryujinx/Headless/HeadlessRyujinx.cs

@@ -289,7 +289,8 @@ namespace Ryujinx.Headless
 
             DriverUtilities.InitDriverConfig(option.BackendThreading == BackendThreading.Off);
             
-            if (_inputConfiguration.OfType<StandardControllerInputConfig>().Any(ic => ic.Led.UseRainbow))
+            if (_inputConfiguration.OfType<StandardControllerInputConfig>()
+                .Any(ic => ic?.Led?.UseRainbow ?? false))
                 Rainbow.Enable();
 
             while (true)