adjust IsValidStreamCounts

Signed-off-by: lizzie <lizzie@eden-emu.dev>

.patch/opus/0001-disable-clang-runtime-neon.patch

@@ -1,28 +0,0 @@
-From cc15da16e533b2a801934eab2dfeaf3c3949a1dc Mon Sep 17 00:00:00 2001
-From: crueter <crueter@eden-emu.dev>
-Date: Mon, 8 Sep 2025 12:28:55 -0400
-Subject: [PATCH] [cmake] disable NEON runtime check on clang-cl
-
-When enabling runtime NEON checking for clang-cl, the linker would error out with `undefined symbol: __emit`, since clang doesn't actually implement this instruction. Therefore it makes sense to disable the runtime check by default on this platform, until either this is fixed or a clang-cl compatible intrinsic check is added (I don't have enough knowledge of MSVC to do this)
----
- cmake/OpusConfig.cmake | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
-diff --git a/cmake/OpusConfig.cmake b/cmake/OpusConfig.cmake
-index e9319fbad..d0f459e88 100644
---- a/cmake/OpusConfig.cmake
-+++ b/cmake/OpusConfig.cmake
-@@ -71,7 +71,12 @@ elseif(OPUS_CPU_ARM AND NOT OPUS_DISABLE_INTRINSICS)
-   opus_detect_neon(COMPILER_SUPPORT_NEON)
-   if(COMPILER_SUPPORT_NEON)
-     option(OPUS_USE_NEON "Option to enable NEON" ON)
--    option(OPUS_MAY_HAVE_NEON "Does runtime check for neon support" ON)
-+    if (MSVC AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-+      set(NEON_RUNTIME_CHECK_DEFAULT OFF)
-+    else()
-+      set(NEON_RUNTIME_CHECK_DEFAULT ON)
-+    endif()
-+    option(OPUS_MAY_HAVE_NEON "Does runtime check for neon support" ${NEON_RUNTIME_CHECK_DEFAULT})
-     option(OPUS_PRESUME_NEON "Assume target CPU has NEON support" OFF)
-     if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
-       set(OPUS_PRESUME_NEON ON)

.patch/opus/0002-no-install.patch

@@ -1,153 +0,0 @@
-From bf455b67b4eaa446ffae5d25410b141b7b1b1082 Mon Sep 17 00:00:00 2001
-From: crueter <crueter@eden-emu.dev>
-Date: Mon, 8 Sep 2025 12:08:20 -0400
-Subject: [PATCH] [cmake] `OPUS_INSTALL` option; only default install if root
- project
-
-Signed-off-by: crueter <crueter@eden-emu.dev>
----
- CMakeLists.txt | 112 ++++++++++++++++++++++++++++---------------------
- 1 file changed, 64 insertions(+), 48 deletions(-)
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index fcf034b19..08b5e16f8 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -4,6 +4,13 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
- include(OpusPackageVersion)
- get_package_version(PACKAGE_VERSION PROJECT_VERSION)
- 
-+# root project detection
-+if(DEFINED PROJECT_NAME)
-+  set(root_project OFF)
-+else()
-+  set(root_project ON)
-+endif()
-+
- project(Opus LANGUAGES C VERSION ${PROJECT_VERSION})
- 
- include(OpusFunctions)
-@@ -83,12 +90,16 @@ set(OPUS_DNN_FLOAT_DEBUG_HELP_STR "Run DNN computations as float for debugging p
- option(OPUS_DNN_FLOAT_DEBUG ${OPUS_DNN_FLOAT_DEBUG_HELP_STR} OFF)
- add_feature_info(OPUS_DNN_FLOAT_DEBUG OPUS_DNN_FLOAT_DEBUG ${OPUS_DNN_FLOAT_DEBUG_HELP_STR})
- 
-+set(OPUS_INSTALL_HELP_STR "Install Opus targets")
-+option(OPUS_INSTALL ${OPUS_INSTALL_HELP_STR} ${root_project})
-+add_feature_info(OPUS_INSTALL OPUS_INSTALL ${OPUS_INSTALL_HELP_STR})
-+
- set(OPUS_INSTALL_PKG_CONFIG_MODULE_HELP_STR "install pkg-config module.")
--option(OPUS_INSTALL_PKG_CONFIG_MODULE ${OPUS_INSTALL_PKG_CONFIG_MODULE_HELP_STR} ON)
-+option(OPUS_INSTALL_PKG_CONFIG_MODULE ${OPUS_INSTALL_PKG_CONFIG_MODULE_HELP_STR} ${OPUS_INSTALL})
- add_feature_info(OPUS_INSTALL_PKG_CONFIG_MODULE OPUS_INSTALL_PKG_CONFIG_MODULE ${OPUS_INSTALL_PKG_CONFIG_MODULE_HELP_STR})
- 
- set(OPUS_INSTALL_CMAKE_CONFIG_MODULE_HELP_STR "install CMake package config module.")
--option(OPUS_INSTALL_CMAKE_CONFIG_MODULE ${OPUS_INSTALL_CMAKE_CONFIG_MODULE_HELP_STR} ON)
-+option(OPUS_INSTALL_CMAKE_CONFIG_MODULE ${OPUS_INSTALL_CMAKE_CONFIG_MODULE_HELP_STR} ${OPUS_INSTALL})
- add_feature_info(OPUS_INSTALL_CMAKE_CONFIG_MODULE OPUS_INSTALL_CMAKE_CONFIG_MODULE ${OPUS_INSTALL_CMAKE_CONFIG_MODULE_HELP_STR})
- 
- set(OPUS_DRED_HELP_STR "enable DRED.")
-@@ -613,53 +624,58 @@ if(OPUS_BUILD_FRAMEWORK)
-                         OUTPUT_NAME Opus)
- endif()
- 
--install(TARGETS opus
--        EXPORT OpusTargets
--        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
--        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
--        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
--        FRAMEWORK DESTINATION ${CMAKE_INSTALL_PREFIX}
--        PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/opus)
--
--if(OPUS_INSTALL_PKG_CONFIG_MODULE)
--  set(prefix ${CMAKE_INSTALL_PREFIX})
--  set(exec_prefix ${CMAKE_INSTALL_PREFIX})
--  set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
--  set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
--  set(VERSION ${PACKAGE_VERSION})
--  if(HAVE_LIBM)
--    set(LIBM "-lm")
-+if (OPUS_INSTALL)
-+  install(TARGETS opus
-+          EXPORT OpusTargets
-+          ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-+          LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-+          RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-+          FRAMEWORK DESTINATION ${CMAKE_INSTALL_PREFIX}
-+          PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/opus)
-+
-+  if(OPUS_INSTALL_PKG_CONFIG_MODULE)
-+    set(prefix ${CMAKE_INSTALL_PREFIX})
-+    set(exec_prefix ${CMAKE_INSTALL_PREFIX})
-+    set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
-+    set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
-+    set(VERSION ${PACKAGE_VERSION})
-+    if(HAVE_LIBM)
-+      set(LIBM "-lm")
-+    endif()
-+    configure_file(opus.pc.in opus.pc)
-+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/opus.pc
-+            DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-+  endif()
-+
-+  if(OPUS_INSTALL_CMAKE_CONFIG_MODULE)
-+    set(CPACK_GENERATOR TGZ)
-+    include(CPack)
-+    set(CMAKE_INSTALL_PACKAGEDIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
-+    install(EXPORT OpusTargets
-+            NAMESPACE Opus::
-+            DESTINATION ${CMAKE_INSTALL_PACKAGEDIR})
-+
-+    include(CMakePackageConfigHelpers)
-+
-+    set(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
-+    configure_package_config_file(
-+      ${PROJECT_SOURCE_DIR}/cmake/OpusConfig.cmake.in
-+      OpusConfig.cmake
-+      INSTALL_DESTINATION
-+      ${CMAKE_INSTALL_PACKAGEDIR}
-+      PATH_VARS
-+      INCLUDE_INSTALL_DIR
-+      INSTALL_PREFIX
-+      ${CMAKE_INSTALL_PREFIX})
-+
-+    write_basic_package_version_file(OpusConfigVersion.cmake
-+                                    VERSION ${PROJECT_VERSION}
-+                                    COMPATIBILITY SameMajorVersion)
-+
-+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/OpusConfig.cmake
-+                  ${CMAKE_CURRENT_BINARY_DIR}/OpusConfigVersion.cmake
-+            DESTINATION ${CMAKE_INSTALL_PACKAGEDIR})
-   endif()
--  configure_file(opus.pc.in opus.pc)
--  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/opus.pc
--          DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
--endif()
--
--if(OPUS_INSTALL_CMAKE_CONFIG_MODULE)
--  set(CPACK_GENERATOR TGZ)
--  include(CPack)
--  set(CMAKE_INSTALL_PACKAGEDIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
--  install(EXPORT OpusTargets
--          NAMESPACE Opus::
--          DESTINATION ${CMAKE_INSTALL_PACKAGEDIR})
--
--  include(CMakePackageConfigHelpers)
--
--  set(INCLUDE_INSTALL_DIR ${CMAKE_INSTALL_INCLUDEDIR})
--  configure_package_config_file(${PROJECT_SOURCE_DIR}/cmake/OpusConfig.cmake.in
--                                OpusConfig.cmake
--                                INSTALL_DESTINATION
--                                ${CMAKE_INSTALL_PACKAGEDIR}
--                                PATH_VARS
--                                INCLUDE_INSTALL_DIR
--                                INSTALL_PREFIX
--                                ${CMAKE_INSTALL_PREFIX})
--  write_basic_package_version_file(OpusConfigVersion.cmake
--                                   VERSION ${PROJECT_VERSION}
--                                   COMPATIBILITY SameMajorVersion)
--  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/OpusConfig.cmake
--                ${CMAKE_CURRENT_BINARY_DIR}/OpusConfigVersion.cmake
--          DESTINATION ${CMAKE_INSTALL_PACKAGEDIR})
- endif()
- 
- if(OPUS_BUILD_PROGRAMS)

CMakeLists.txt

@@ -461,21 +461,6 @@ if (NOT YUZU_STATIC_ROOM)
     if (ZLIB_ADDED)
         add_library(ZLIB::ZLIB ALIAS zlibstatic)
     endif()
-
-    # Opus
-    AddJsonPackage(opus)
-
-    if (Opus_ADDED)
-        if (MSVC AND CXX_CLANG)
-            target_compile_options(opus PRIVATE
-                $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-implicit-function-declaration>
-            )
-        endif()
-    endif()
-
-    if (NOT TARGET Opus::opus)
-        add_library(Opus::opus ALIAS opus)
-    endif()
 endif()
 
 if(NOT TARGET Boost::headers)

CMakeModules/find/FindOpus.cmake

@@ -1,22 +0,0 @@
-# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-# SPDX-FileCopyrightText: 2022 yuzu Emulator Project
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-find_package(PkgConfig QUIET)
-pkg_search_module(OPUS QUIET IMPORTED_TARGET opus)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Opus
-    REQUIRED_VARS OPUS_LINK_LIBRARIES
-    VERSION_VAR OPUS_VERSION
-)
-
-if (MSYS2)
-    FixMsysPath(PkgConfig::OPUS)
-endif()
-
-if (Opus_FOUND AND NOT TARGET Opus::opus)
-    add_library(Opus::opus ALIAS PkgConfig::OPUS)
-endif()

cpmfile.json

@@ -218,21 +218,6 @@
         "repo": "jimmy-park/openssl-cmake",
         "version": "3.6.2"
     },
-    "opus": {
-        "find_args": "MODULE",
-        "hash": "9506147b0de35befda8633ff272981cc2575c860874791bd455b752f797fd7dbd1079f0ba42ccdd7bb1fe6773fa5e84b3d75667c2883dd1fb2d0e4a5fa4f8387",
-        "min_version": "1.3",
-        "options": [
-            "OPUS_PRESUME_NEON ON"
-        ],
-        "package": "Opus",
-        "patches": [
-            "0001-disable-clang-runtime-neon.patch",
-            "0002-no-install.patch"
-        ],
-        "repo": "xiph/opus",
-        "version": "a3f0ec02b3"
-    },
     "quazip": {
         "hash": "609c240c7f029ac26a37d8fbab51bc16284e05e128b78b9b9c0e95d083538c36047a67d682759ac990e4adb0eeb90f04f1ea7fe2253bbda7e7e3bcce32e53dd8",
         "min_version": "1.3",

docs/Deps.md

@@ -60,7 +60,6 @@ All other dependencies will be downloaded and built by [CPM](https://github.com/
 * [ZLIB](https://www.zlib.net/) 1.2+
 * [zstd](https://facebook.github.io/zstd/) 1.5+
 * [enet](http://enet.bespin.org/) 1.3+
-* [Opus](https://opus-codec.org/) 1.3+
 
 Vulkan 1.3.274+ is also needed:
 
@@ -122,7 +121,7 @@ sudo emerge -a \
     dev-libs/unordered_dense dev-libs/boost dev-libs/openssl dev-libs/discord-rpc \
     dev-util/spirv-tools dev-util/spirv-headers dev-util/vulkan-headers \
     dev-util/vulkan-utility-libraries dev-util/glslang \
-    media-gfx/renderdoc media-libs/libva media-libs/opus media-video/ffmpeg \
+    media-gfx/renderdoc media-libs/libva media-video/ffmpeg \
     media-libs/VulkanMemoryAllocator media-libs/libsdl3 media-libs/cubeb \
     net-libs/enet \
     sys-libs/zlib \
@@ -154,7 +153,7 @@ Required USE flags:
 <summary>Arch Linux</summary>
 
 ```sh
-sudo pacman -Syu --needed base-devel boost catch2 cmake enet ffmpeg fmt git glslang libzip lz4 ninja nlohmann-json openssl opus qt6-base qt6-multimedia qt6-charts sdl3 zlib zstd zip unzip vulkan-headers vulkan-utility-libraries libusb spirv-tools spirv-headers
+sudo pacman -Syu --needed base-devel boost catch2 cmake enet ffmpeg fmt git glslang libzip lz4 ninja nlohmann-json openssl qt6-base qt6-multimedia qt6-charts sdl3 zlib zstd zip unzip vulkan-headers vulkan-utility-libraries libusb spirv-tools spirv-headers
 ```
 
 * Building with QT Web Engine requires `qt6-webengine` as well.
@@ -167,7 +166,7 @@ sudo pacman -Syu --needed base-devel boost catch2 cmake enet ffmpeg fmt git glsl
 <summary>Ubuntu, Debian, Mint Linux</summary>
 
 ```sh
-sudo apt-get install autoconf cmake g++ gcc git glslang-tools libglu1-mesa-dev libhidapi-dev libpulse-dev libtool libudev-dev libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-render-util0 libxcb-xinerama0 libxcb-xkb1 libxext-dev libxkbcommon-x11-0 mesa-common-dev nasm ninja-build qt6-base-private-dev catch2 libfmt-dev liblz4-dev nlohmann-json3-dev libzstd-dev libssl-dev libavfilter-dev libavcodec-dev libswscale-dev pkg-config zlib1g-dev libva-dev libvdpau-dev qt6-tools-dev qt6-charts-dev libvulkan-dev spirv-tools spirv-headers libusb-1.0-0-dev libxbyak-dev libboost-dev libboost-fiber-dev libboost-context-dev libsdl3-dev libopus-dev libasound2t64 vulkan-utility-libraries-dev
+sudo apt-get install autoconf cmake g++ gcc git glslang-tools libglu1-mesa-dev libhidapi-dev libpulse-dev libtool libudev-dev libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-render-util0 libxcb-xinerama0 libxcb-xkb1 libxext-dev libxkbcommon-x11-0 mesa-common-dev nasm ninja-build qt6-base-private-dev catch2 libfmt-dev liblz4-dev nlohmann-json3-dev libzstd-dev libssl-dev libavfilter-dev libavcodec-dev libswscale-dev pkg-config zlib1g-dev libva-dev libvdpau-dev qt6-tools-dev qt6-charts-dev libvulkan-dev spirv-tools spirv-headers libusb-1.0-0-dev libxbyak-dev libboost-dev libboost-fiber-dev libboost-context-dev libsdl3-dev libasound2t64 vulkan-utility-libraries-dev
 ```
 
 * Ubuntu 26.04, Linux Mint 22.3, or Debian 13 or later is required.
@@ -214,7 +213,7 @@ First, enable the community repository; [see here](https://wiki.alpinelinux.org/
 # Enable the community repository
 setup-apkrepos -c
 # Install
-apk add g++ git cmake make mesa-dev qt6-qtbase-dev qt6-qtbase-private-dev libquazip1-qt6 ffmpeg-dev qt6-charts-dev libusb-dev libtool boost-dev sdl3-dev zstd-dev vulkan-utility-libraries spirv-tools-dev openssl-dev nlohmann-json lz4-dev opus-dev jq patch
+apk add g++ git cmake make mesa-dev qt6-qtbase-dev qt6-qtbase-private-dev libquazip1-qt6 ffmpeg-dev qt6-charts-dev libusb-dev libtool boost-dev sdl3-dev zstd-dev vulkan-utility-libraries spirv-tools-dev openssl-dev nlohmann-json lz4-dev  jq patch
 ```
 
 </details>
@@ -260,7 +259,7 @@ brew install molten-vk
 <details>
 <summary>FreeBSD</summary>
 
-As root run: `pkg install devel/cmake sdl3 devel/boost-libs devel/catch2 devel/libfmt devel/nlohmann-json devel/ninja devel/nasm devel/autoconf devel/pkgconf devel/qt6-base devel/qt6-charts devel/simpleini net/enet multimedia/ffnvcodec-headers multimedia/ffmpeg audio/opus archivers/liblz4 lang/gcc12 graphics/glslang graphics/vulkan-utility-libraries graphics/spirv-tools www/cpp-httplib devel/unordered-dense vulkan-headers quazip-qt6`
+As root run: `pkg install devel/cmake sdl3 devel/boost-libs devel/catch2 devel/libfmt devel/nlohmann-json devel/ninja devel/nasm devel/autoconf devel/pkgconf devel/qt6-base devel/qt6-charts devel/simpleini net/enet multimedia/ffnvcodec-headers multimedia/ffmpeg archivers/liblz4 lang/gcc12 graphics/glslang graphics/vulkan-utility-libraries graphics/spirv-tools www/cpp-httplib devel/unordered-dense vulkan-headers quazip-qt6`
 
 If using FreeBSD 12 or prior, use `devel/pkg-config` instead.
 
@@ -273,7 +272,7 @@ If using FreeBSD 12 or prior, use `devel/pkg-config` instead.
 For NetBSD +10.1:
 
 ```sh
-pkgin install git cmake boost fmtlib SDL3 catch2 libjwt spirv-headers spirv-tools ffmpeg7 libva nlohmann-json jq libopus qt6 cpp-httplib lz4 vulkan-headers nasm autoconf enet pkg-config libusb1 libcxx frozen
+pkgin install git cmake boost fmtlib SDL3 catch2 libjwt spirv-headers spirv-tools ffmpeg7 libva nlohmann-json jq qt6 cpp-httplib lz4 vulkan-headers nasm autoconf enet pkg-config libusb1 libcxx frozen
 ```
 
 [Caveats](./Caveats.md#netbsd).
@@ -304,7 +303,7 @@ pkg install gcc14 git cmake unzip nasm autoconf bash pkgconf ffmpeg glslang gmak
 <summary>OpenIndiana</summary>
 
 ```sh
-sudo pkg install git cmake qt6 boost glslang libzip library/lz4 libusb-1 nlohmann-json openssl opus sdl3 zlib compress/zstd unzip pkg-config nasm autoconf mesa library/libdrm header-drm developer/fmt
+sudo pkg install git cmake qt6 boost glslang libzip library/lz4 libusb-1 nlohmann-json openssl sdl3 zlib compress/zstd unzip pkg-config nasm autoconf mesa library/libdrm header-drm developer/fmt
 ```
 
 [Caveats](./Caveats.md#openindiana).
@@ -328,7 +327,7 @@ sudo pkgin install git cmake autoconf build-essential libusb-1 nasm gcc13
 
 ```sh
 BASE="git make autoconf libtool automake-wrapper jq patch"
-MINGW="qt6-base qt6-charts qt6-tools qt6-translations qt6-svg cmake toolchain clang python-pip openssl vulkan-memory-allocator vulkan-devel glslang boost fmt lz4 nlohmann-json zlib zstd enet opus libusb unordered_dense openssl SDL3"
+MINGW="qt6-base qt6-charts qt6-tools qt6-translations qt6-svg cmake toolchain clang python-pip openssl vulkan-memory-allocator vulkan-devel glslang boost fmt lz4 nlohmann-json zlib zstd enet libusb unordered_dense openssl SDL3"
 # Either x86_64 or clang-aarch64 (Windows on ARM)
 packages="$BASE"
 for pkg in $MINGW; do
@@ -354,7 +353,7 @@ pacman -Syuu --needed --noconfirm $packages
 <summary>HaikuOS</summary>
 
 ```sh
-pkgman install git cmake patch libfmt_devel nlohmann_json lz4_devel opus_devel boost1.90_devel vulkan_devel qt6_base_devel qt6_declarative_devel libsdl3_devel ffmpeg7_devel libx11_devel enet_devel catch2_devel quazip1_qt5_devel qt6_5compat_devel glslang qt6_devel qt6_charts_devel cubeb_devel simpleini quazip_qt6_devel
+pkgman install git cmake patch libfmt_devel nlohmann_json lz4_devel boost1.90_devel vulkan_devel qt6_base_devel qt6_declarative_devel libsdl3_devel ffmpeg7_devel libx11_devel enet_devel catch2_devel quazip1_qt5_devel qt6_5compat_devel glslang qt6_devel qt6_charts_devel cubeb_devel simpleini quazip_qt6_devel
 ```
 
 [Caveats](./Caveats.md#haikuos).

docs/Settings.md

@@ -43,7 +43,6 @@ This guide will walk you through adding a new boolean toggle setting to Eden's c
 Firstly add your desired toggle:
 
 Example: `src/common/setting.h`
-
 ```cpp
 SwitchableSetting<bool> your_setting_name{linkage, false, "your_setting_name", Category::RendererExtensions};
 ```
@@ -68,7 +67,6 @@ Common Categories:
 Add the toggle to the Qt UI, where you wish for it to appear and place it there.
 
 Example: `src/qt_common/config/shared_translation.cpp`
-
 ```cpp
 INSERT(Settings,
        your_setting_name,
@@ -93,7 +91,6 @@ INSERT(Settings,
 Add where it should be in the settings.
 
 Example: `src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/BooleanSetting.kt`
-
 ```kts
 RENDERER_YOUR_SETTING_NAME("your_setting_name"),
 ```
@@ -109,7 +106,6 @@ RENDERER_YOUR_SETTING_NAME("your_setting_name"),
 Add the toggle to the Kotlin (Android) UI
 
 Example: `src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt`
-
 ```kts
 put(
     SwitchSetting(
@@ -127,7 +123,6 @@ put(
 Add your setting within the right category.
 
 Example: `src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt`
-
 ```kts
 add(BooleanSetting.RENDERER_YOUR_SETTING_NAME.key)
 ```
@@ -142,7 +137,6 @@ add(BooleanSetting.RENDERER_YOUR_SETTING_NAME.key)
 Add your setting and description in the appropriate place.
 
 Example: `src/android/app/src/main/res/values/strings.xml`
-
 ```xml
 <string name="your_setting_name">Your Setting Display Name</string>
 <string name="your_setting_name_description">Detailed description of what this setting does. Explain any caveats, requirements, or warnings here.</string>
@@ -156,7 +150,6 @@ Now the UI part is done find a place in the code for the toggle,
 And use it to your heart's desire!
 
 Example:
-
 ```cpp
 const bool your_value = Settings::values.your_setting_name.GetValue();
 
@@ -203,31 +196,25 @@ Common advantages recap:
 
 #### Accessing Debug Knobs (dev side)
 
-Use the `Settings::GetDebugKnobAt(u8 i)` function to check if a specific bit is set:
+Use the `Settings::getDebugKnobAt(u8 i)` function to check if a specific bit is set:
 
 ```cpp
 //cpp side
 #include "common/settings.h"
 
-//To use it as a general purpose uint var:
-unsigned int debug_knobs = Settings::values.debug_knobs.GetValue();
-
 // Check if bit 0 is set
-bool feature_enabled = Settings::GetDebugKnobAt(0);
+bool feature_enabled = Settings::getDebugKnobAt(0);
 
 // Check if bit 15 is set
-bool another_feature = Settings::GetDebugKnobAt(15);
+bool another_feature = Settings::getDebugKnobAt(15);
 ```
 
 ```kts
 //kotlin side
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 
-//To use it as a general purpose uint var
-val debug_knobs: Int = UShortSetting.DEBUG_KNOBS.getInt()
-
 // Check if bit x is set
-bool feature_enabled = Settings.GetDebugKnobAt(x); //x as integer from 0 to 15
+bool feature_enabled = Settings.getDebugKnobAt(x); //x as integer from 0 to 15
 ```
 
 The function returns `true` if the specified bit (0-15) is set in the `debug_knobs` value, `false` otherwise.
@@ -260,7 +247,6 @@ There are two main confusions when talking about knobs:
 Sometimes when an user reports: knobs 1 and 2 gets better performance, dev may get confuse whether he means the knobs 1 and 2 literally, or the 1st and 2nd knobs (knobs 0 and 1).
 
 Debug knobs are **zero-based**, which means:
-
 * The first knob is the knob(0) (or knob0 henceforth), and the last one is the 15 (knob15, likewise)
 * You can talk: "knob0 is enabled/disabled", "In this video i was using only knobs 0 and 2", etc.
 
@@ -273,7 +259,6 @@ Whenever you're instructing tests or reporting results, be precise about whether
 
 ALWAYS use the word in PLURAL (knobs), without mentioning which one, to refer to the setting, aka multiple knobs at once:
 Examples:
-
 - **knobs=0**: no knobs enabled
 - **knobs=1**: knob0 enabled, others disabled
 - **knobs=2**: knob1 enabled, others disabled
@@ -285,7 +270,6 @@ Examples:
 
 Use the word in SINGULAR (knob), or in plural but referring which ones, when meaning multiple knobs at once:
 Examples:
-
 - **knob0**: knob 0 enabled, others disabled
 - **knob1**: knob 1 enabled, others disabled
 - **knobs 0 and 1**: knobs 0 and 1 enabled, others disabled
@@ -298,12 +282,12 @@ Examples:
 
 ```cpp
 void SomeFunction() {
-    if (Settings::GetDebugKnobAt(0)) {
+    if (Settings::getDebugKnobAt(0)) {
         LOG_DEBUG(Common, "Debug feature 0 is enabled");
         // Additional debug code here
     }
-  
+    
-    if (Settings::GetDebugKnobAt(1)) {
+    if (Settings::getDebugKnobAt(1)) {
         LOG_DEBUG(Common, "Debug feature 1 is enabled");
         // Different debug behavior
     }
@@ -315,7 +299,7 @@ void SomeFunction() {
 ```cpp
 bool UseOptimizedPath() {
     // Skip optimization if debug bit 2 is set for testing
-    return !Settings::GetDebugKnobAt(2);
+    return !Settings::getDebugKnobAt(2);
 }
 ```
 
@@ -324,13 +308,13 @@ bool UseOptimizedPath() {
 ```cpp
 void ExperimentalFeature() {
     static constexpr u8 EXPERIMENTAL_FEATURE_BIT = 3;
-  
+    
-    if (!Settings::GetDebugKnobAt(EXPERIMENTAL_FEATURE_BIT)) {
+    if (!Settings::getDebugKnobAt(EXPERIMENTAL_FEATURE_BIT)) {
         // Fallback to stable implementation
         StableImplementation();
         return;
     }
-  
+    
     // Experimental implementation
     ExperimentalImplementation();
 }

shell.nix

@@ -12,7 +12,7 @@ pkgs.mkShellNoCC {
     git cmake clang gnumake patch jq pkg-config
     # libraries
     openssl boost fmt nlohmann_json lz4 zlib zstd
-    enet libopus vulkan-headers vulkan-utility-libraries
+    enet vulkan-headers vulkan-utility-libraries
     spirv-tools spirv-headers vulkan-loader unzip
     glslang python3 httplib cpp-jwt ffmpeg-headless
     libusb1 cubeb

src/android/app/src/main/java/org/yuzu/yuzu_emu/NativeLibrary.kt

@@ -220,7 +220,7 @@ object NativeLibrary {
 
     external fun refreshThreadPolicies()
 
-    external fun GetDebugKnobAt(index: Int): Boolean
+    external fun getDebugKnobAt(index: Int): Boolean
 
     /**
      * Set the current speed limit to the configured turbo speed.

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/Settings.kt

@@ -35,8 +35,8 @@ object Settings {
     fun getPlayerString(player: Int): String =
         YuzuApplication.appContext.getString(R.string.preferences_player, player)
 
-    fun GetDebugKnobAt(index: Int): Boolean {
+    fun getDebugKnobAt(index: Int): Boolean {
-        return org.yuzu.yuzu_emu.NativeLibrary.GetDebugKnobAt(index)
+        return org.yuzu.yuzu_emu.NativeLibrary.getDebugKnobAt(index)
     }
 
     const val PREF_FIRST_APP_LAUNCH = "FirstApplicationLaunch"

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/ShortSetting.kt

@@ -11,7 +11,8 @@ import org.yuzu.yuzu_emu.utils.NativeConfig
 enum class ShortSetting(override val key: String) : AbstractShortSetting {
     RENDERER_SPEED_LIMIT("speed_limit"),
     RENDERER_TURBO_SPEED_LIMIT("turbo_speed_limit"),
-    RENDERER_SLOW_SPEED_LIMIT("slow_speed_limit")
+    RENDERER_SLOW_SPEED_LIMIT("slow_speed_limit"),
+    DEBUG_KNOBS("debug_knobs")
     ;
 
     override fun getShort(needsGlobal: Boolean): Short = NativeConfig.getShort(key, needsGlobal)
@@ -28,4 +29,4 @@ enum class ShortSetting(override val key: String) : AbstractShortSetting {
     override fun getValueAsString(needsGlobal: Boolean): String = getShort(needsGlobal).toString()
 
     override fun reset() = NativeConfig.setShort(key, defaultValue)
-}
+}

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/UShortSetting.kt

@@ -1,30 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.yuzu.yuzu_emu.features.settings.model
-
-import org.yuzu.yuzu_emu.utils.NativeConfig
-
-enum class UShortSetting(override val key: String) : AbstractIntSetting {
-    DEBUG_KNOBS("debug_knobs")
-    ;
-
-    override fun getInt(needsGlobal: Boolean): Int =
-        NativeConfig.getUnsignedShort(key, needsGlobal)
-
-    override fun setInt(value: Int) {
-        if (NativeConfig.isPerGameConfigLoaded()) {
-            global = false
-        }
-        NativeConfig.setUnsignedShort(key, value)
-    }
-
-    override val defaultValue: Int by lazy { NativeConfig.getDefaultToString(key).toInt() }
-
-    override fun getValueAsString(needsGlobal: Boolean): String = getInt(needsGlobal).toString()
-
-    override fun reset() = NativeConfig.setUnsignedShort(key, defaultValue)
-}

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt

@@ -20,7 +20,6 @@ import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.features.settings.model.LongSetting
 import org.yuzu.yuzu_emu.features.settings.model.ShortSetting
 import org.yuzu.yuzu_emu.features.settings.model.StringSetting
-import org.yuzu.yuzu_emu.features.settings.model.UShortSetting
 import org.yuzu.yuzu_emu.network.NetDataValidators
 import org.yuzu.yuzu_emu.utils.LosslessScalingHelper
 import org.yuzu.yuzu_emu.utils.NativeConfig
@@ -1035,7 +1034,7 @@ abstract class SettingsItem(
             )
             put(
                 SpinBoxSetting(
-                    UShortSetting.DEBUG_KNOBS,
+                    ShortSetting.DEBUG_KNOBS,
                     titleId = R.string.debug_knobs,
                     descriptionId = R.string.debug_knobs_description,
                     valueHint = R.string.debug_knobs_hint,

src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt

@@ -25,7 +25,6 @@ import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.features.settings.model.Settings.MenuTag
 import org.yuzu.yuzu_emu.features.settings.model.ShortSetting
 import org.yuzu.yuzu_emu.features.settings.model.StringSetting
-import org.yuzu.yuzu_emu.features.settings.model.UShortSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.*
 import org.yuzu.yuzu_emu.utils.InputHandler
 import org.yuzu.yuzu_emu.utils.LosslessScalingHelper
@@ -1327,7 +1326,7 @@ class SettingsFragmentPresenter(
 
             add(HeaderSetting(R.string.general))
 
-            add(UShortSetting.DEBUG_KNOBS.key)
+            add(ShortSetting.DEBUG_KNOBS.key)
             add(StringSetting.PROGRAM_ARGS.key)
 
             if (!NativeConfig.isPerGameConfigLoaded()) {

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/LicensesFragment.kt

@@ -79,13 +79,6 @@ class LicensesFragment : Fragment() {
                 R.string.license_ffmpeg_copyright,
                 R.string.license_ffmpeg_text
             ),
-            License(
-                R.string.license_opus,
-                R.string.license_opus_description,
-                R.string.license_opus_link,
-                R.string.license_opus_copyright,
-                R.string.license_opus_text
-            ),
             License(
                 R.string.license_sirit,
                 R.string.license_sirit_description,

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/NativeConfig.kt

@@ -80,12 +80,6 @@ object NativeConfig {
     @Synchronized
     external fun setShort(key: String, value: Short)
 
-    @Synchronized
-    external fun getUnsignedShort(key: String, needsGlobal: Boolean): Int
-
-    @Synchronized
-    external fun setUnsignedShort(key: String, value: Int)
-
     @Synchronized
     external fun getInt(key: String, needsGlobal: Boolean): Int
 

src/android/app/src/main/jni/native.cpp

@@ -1300,8 +1300,8 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_refreshThreadPolicies(JNIEnv* env, jo
     Common::RefreshThreadPolicies();
 }
 
-jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_GetDebugKnobAt(JNIEnv* env, jobject jobj, jint index) {
+jboolean Java_org_yuzu_yuzu_1emu_NativeLibrary_getDebugKnobAt(JNIEnv* env, jobject jobj, jint index) {
-    return static_cast<jboolean>(Settings::GetDebugKnobAt(static_cast<u8>(index)));
+    return static_cast<jboolean>(Settings::getDebugKnobAt(static_cast<u8>(index)));
 }
 
 void Java_org_yuzu_yuzu_1emu_NativeLibrary_setTurboSpeedLimit(JNIEnv *env, jobject jobj, jboolean enabled) {

src/android/app/src/main/jni/native_config.cpp

@@ -130,25 +130,6 @@ void Java_org_yuzu_yuzu_1emu_utils_NativeConfig_setShort(JNIEnv* env, jobject ob
     setting->SetValue(value);
 }
 
-jint Java_org_yuzu_yuzu_1emu_utils_NativeConfig_getUnsignedShort(JNIEnv* env, jobject obj,
-                                                                 jstring jkey,
-                                                                 jboolean needGlobal) {
-    auto setting = getSetting<u16>(env, jkey);
-    if (setting == nullptr) {
-        return -1;
-    }
-    return static_cast<jint>(setting->GetValue(static_cast<bool>(needGlobal)));
-}
-
-void Java_org_yuzu_yuzu_1emu_utils_NativeConfig_setUnsignedShort(JNIEnv* env, jobject obj,
-                                                                  jstring jkey, jint value) {
-    auto setting = getSetting<u16>(env, jkey);
-    if (setting == nullptr) {
-        return;
-    }
-    setting->SetValue(static_cast<u16>(value));
-}
-
 jint Java_org_yuzu_yuzu_1emu_utils_NativeConfig_getInt(JNIEnv* env, jobject obj, jstring jkey,
                                                        jboolean needGlobal) {
     auto setting = getSetting<int>(env, jkey);

src/android/app/src/main/res/values/strings.xml

@@ -1760,51 +1760,6 @@ RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
 FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 DAMAGES.
-    </string>
-    <string name="license_opus" translatable="false">Opus</string>
-    <string name="license_opus_description" translatable="false">Modern audio compression for the internet</string>
-    <string name="license_opus_link" translatable="false">https://github.com/xiph/opus</string>
-    <string name="license_opus_copyright" translatable="false">Copyright 2001–2011 Xiph.Org, Skype Limited, Octasic, Jean-Marc Valin, Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding, Erik de Castro Lopo</string>
-    <string name="license_opus_text" translatable="false">
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:\n\n
-
-- Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.\n\n
-
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.\n\n
-
-- Neither the name of Internet Society, IETF or IETF Trust, nor the
-names of specific contributors, may be used to endorse or promote
-products derived from this software without specific prior written
-permission.\n\n
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-``AS IS\'\' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
-OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\n
-
-Opus is subject to the royalty-free patent licenses which are
-specified at:\n\n
-
-Xiph.Org Foundation:
-https://datatracker.ietf.org/ipr/1524/ \n\n
-
-Microsoft Corporation:
-https://datatracker.ietf.org/ipr/1914/ \n\n
-
-Broadcom Corporation:
-https://datatracker.ietf.org/ipr/1526/
     </string>
     <string name="license_sirit" translatable="false">Sirit</string>
     <string name="license_sirit_description" translatable="false">A runtime SPIR-V assembler</string>

src/audio_core/CMakeLists.txt

@@ -226,8 +226,14 @@ else()
         $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-sign-conversion>)
 endif()
 
-target_include_directories(audio_core PRIVATE ${OPUS_INCLUDE_DIRS})
+if (YUZU_USE_EXTERNAL_FFMPEG)
-target_link_libraries(audio_core PUBLIC common core Opus::opus)
+    add_dependencies(audio_core ffmpeg-build)
+endif()
+target_include_directories(audio_core PUBLIC ${FFmpeg_INCLUDE_DIR})
+target_link_libraries(audio_core PRIVATE ${FFmpeg_LIBRARIES})
+target_link_options(audio_core PRIVATE ${FFmpeg_LDFLAGS})
+
+target_link_libraries(audio_core PUBLIC common core)
 
 if (ENABLE_CUBEB)
     target_sources(audio_core PRIVATE

src/audio_core/adsp/apps/opus/opus_decode_object.cpp

@@ -1,107 +1,71 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavcodec/codec.h>
+#include <libavcodec/packet.h>
+#include <libavutil/channel_layout.h>
+#include <libavutil/frame.h>
+}
 #include "audio_core/adsp/apps/opus/opus_decode_object.h"
+#include "audio_core/adsp/apps/opus/opus_types.h"
 #include "common/assert.h"
+#include "core/hle/service/audio/errors.h"
 
 namespace AudioCore::ADSP::OpusDecoder {
-namespace {
-bool IsValidChannelCount(u32 channel_count) {
-    return channel_count == 1 || channel_count == 2;
-}
-} // namespace
 
 u32 OpusDecodeObject::GetWorkBufferSize(u32 channel_count) {
-    if (!IsValidChannelCount(channel_count)) {
+    if (channel_count == 1 || channel_count == 2)
-        return 0;
+        return u32(sizeof(OpusDecodeObject)) + 16 * channel_count;
-    }
+    return 0;
-    return static_cast<u32>(sizeof(OpusDecodeObject)) + opus_decoder_get_size(channel_count);
 }
 
-OpusDecodeObject& OpusDecodeObject::Initialize(u64 buffer, u64 buffer2) {
+Result OpusDecodeObject::InitializeDecoder(u32 sample_rate, u32 channel_count) {
-    auto* new_decoder = reinterpret_cast<OpusDecodeObject*>(buffer);
+    if ((codec = avcodec_find_decoder(AV_CODEC_ID_OPUS)) == nullptr)
-    auto* comparison = reinterpret_cast<OpusDecodeObject*>(buffer2);
+        return Service::Audio::ResultLibOpusInvalidState;
-
+    if ((avctx = avcodec_alloc_context3(codec)) == nullptr)
-    if (new_decoder->magic == DecodeObjectMagic) {
+        return Service::Audio::ResultLibOpusInvalidState;
-        if (!new_decoder->initialized ||
+    avctx->sample_rate = sample_rate;
-            (new_decoder->initialized && new_decoder->self == comparison)) {
+    av_channel_layout_default(&avctx->ch_layout, channel_count);
-            new_decoder->state_valid = true;
+    return ResultSuccess;
-        }
-    } else {
-        new_decoder->initialized = false;
-        new_decoder->state_valid = true;
-    }
-    return *new_decoder;
 }
 
-s32 OpusDecodeObject::InitializeDecoder(u32 sample_rate, u32 channel_count) {
+Result OpusDecodeObject::Shutdown() {
-    if (!state_valid) {
+    if (avctx)
-        return OPUS_INVALID_STATE;
+        avcodec_free_context(&avctx);
-    }
+    return ResultSuccess;
-
-    if (initialized) {
-        return OPUS_OK;
-    }
-
-    // Unfortunately libopus does not expose the OpusDecoder struct publicly, so we can't include
-    // it in this class. Nintendo does not allocate memory, which is why we have a workbuffer
-    // provided.
-    // We could use _create and have libopus allocate it for us, but then we have to separately
-    // track which decoder is being used between this and multistream in order to call the correct
-    // destroy from the host side.
-    // This is a bit cringe, but is safe as these objects are only ever initialized inside the given
-    // workbuffer, and GetWorkBufferSize will guarantee there's enough space to follow.
-    decoder = (LibOpusDecoder*)(this + 1);
-    s32 ret = opus_decoder_init(decoder, sample_rate, channel_count);
-    if (ret == OPUS_OK) {
-        magic = DecodeObjectMagic;
-        initialized = true;
-        state_valid = true;
-        self = this;
-        final_range = 0;
-    }
-    return ret;
 }
 
-s32 OpusDecodeObject::Shutdown() {
+Result OpusDecodeObject::ResetDecoder() {
-    if (!state_valid) {
+    if (avctx) {
-        return OPUS_INVALID_STATE;
+        avcodec_flush_buffers(avctx);
+        return ResultSuccess;
     }
-
+    return Service::Audio::ResultLibOpusInvalidState;
-    if (initialized) {
-        magic = 0x0;
-        initialized = false;
-        state_valid = false;
-        self = nullptr;
-        final_range = 0;
-        decoder = nullptr;
-    }
-    return OPUS_OK;
 }
 
-s32 OpusDecodeObject::ResetDecoder() {
+Result OpusDecodeObject::Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data, u64 input_data_size) {
-    return opus_decoder_ctl(decoder, OPUS_RESET_STATE);
-}
-
-s32 OpusDecodeObject::Decode(u32& out_sample_count, u64 output_data, u64 output_data_size,
-                             u64 input_data, u64 input_data_size) {
-    ASSERT(initialized);
     out_sample_count = 0;
+    if (avctx) {
+        AVPacket* avpkt = av_packet_alloc();
+        av_new_packet(avpkt, int(input_data_size));
+        std::memcpy(avpkt->data, reinterpret_cast<const u8*>(input_data), input_data_size);
+        avcodec_send_packet(avctx, avpkt);
 
-    if (!state_valid) {
+        AVFrame* frame = av_frame_alloc();
-        return OPUS_INVALID_STATE;
+        avcodec_receive_frame(avctx, frame);
+        std::memcpy(reinterpret_cast<u16*>(output_data), frame->data, output_data_size);
+        av_frame_free(&frame);
+        av_packet_free(&avpkt);
+
+        out_sample_count = frame->nb_samples;
+        return ResultSuccess;
     }
-
+    return Service::Audio::ResultLibOpusInvalidState;
-    auto ret_code_or_samples = opus_decode(
-        decoder, reinterpret_cast<const u8*>(input_data), static_cast<opus_int32>(input_data_size),
-        reinterpret_cast<opus_int16*>(output_data), static_cast<opus_int32>(output_data_size), 0);
-
-    if (ret_code_or_samples < OPUS_OK) {
-        return ret_code_or_samples;
-    }
-
-    out_sample_count = ret_code_or_samples;
-    return opus_decoder_ctl(decoder, OPUS_GET_FINAL_RANGE_REQUEST, &final_range);
 }
 
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decode_object.h

@@ -1,38 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
-#include <opus.h>
-
 #include "common/common_types.h"
+#include "audio_core/adsp/apps/opus/opus_types.h"
+#include "core/hle/result.h"
+
+struct AVCodec;
+struct AVCodecContext;
 
 namespace AudioCore::ADSP::OpusDecoder {
-using LibOpusDecoder = ::OpusDecoder;
-static constexpr u32 DecodeObjectMagic = 0xDEADBEEF;
 
 class OpusDecodeObject {
 public:
     static u32 GetWorkBufferSize(u32 channel_count);
-    static OpusDecodeObject& Initialize(u64 buffer, u64 buffer2);
 
-    s32 InitializeDecoder(u32 sample_rate, u32 channel_count);
+    Result InitializeDecoder(u32 sample_rate, u32 channel_count);
-    s32 Shutdown();
+    Result Shutdown();
-    s32 ResetDecoder();
+    Result ResetDecoder();
-    s32 Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data,
+    Result Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data, u64 input_data_size);
-               u64 input_data_size);
-    u32 GetFinalRange() const noexcept {
-        return final_range;
-    }
 
-private:
+    AVCodec const* codec = nullptr;
-    u32 magic;
+    AVCodecContext* avctx = nullptr;
-    bool initialized;
-    bool state_valid;
-    OpusDecodeObject* self;
-    u32 final_range;
-    LibOpusDecoder* decoder;
 };
-static_assert(std::is_trivially_constructible_v<OpusDecodeObject>);
 
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decoder.cpp

@@ -16,6 +16,7 @@
 #include "common/thread.h"
 #include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hle/service/audio/errors.h"
 
 namespace AudioCore::ADSP::OpusDecoder {
 
@@ -49,11 +50,16 @@ OpusDecoder::~OpusDecoder() {
     // Shutdown the thread
     Send(Direction::DSP, Message::Shutdown);
     auto msg = Receive(Direction::Host);
-    ASSERT_MSG(msg == Message::ShutdownOK, "Expected Opus shutdown code {}, got {}",
+    ASSERT_MSG(msg == Message::ShutdownOK, "Expected Opus shutdown code {}, got {}", Message::ShutdownOK, msg);
-               Message::ShutdownOK, msg);
     main_thread.request_stop();
     main_thread.join();
     running = false;
+
+    // Must shutdown as there are AV allocations which are manual
+    for (auto& e : decode_objects)
+        e.second.Shutdown();
+    for (auto& e : ms_decode_objects)
+        e.second.Shutdown();
 }
 
 void OpusDecoder::Send(Direction dir, u32 message) {
@@ -68,202 +74,195 @@ void OpusDecoder::Init(std::stop_token stop_token) {
     Common::SetCurrentThreadName("DSP_OpusDecoder_Init");
 
     if (Receive(Direction::DSP, stop_token) != Message::Start) {
-        LOG_ERROR(Service_Audio,
+        LOG_ERROR(Service_Audio, "DSP OpusDecoder failed to receive Start message. Opus initialization failed.");
-                  "DSP OpusDecoder failed to receive Start message. Opus initialization failed.");
         return;
     }
-    main_thread = std::jthread([this](std::stop_token st) { Main(st); });
+    // Main OpusDecoder thread, responsible for processing the incoming Opus packets.
+    main_thread = std::jthread([this](std::stop_token thread_stop_token) {
+        Common::SetCurrentThreadName("DSP_OpusDecoder_Main");
+        while (!thread_stop_token.stop_requested()) {
+            auto msg = Receive(Direction::DSP, thread_stop_token);
+            switch (msg) {
+            case Shutdown:
+                Send(Direction::Host, Message::ShutdownOK);
+                return;
+            case GetWorkBufferSize: {
+                auto channel_count = s32(shared_memory->host_send_data[0]);
+
+                ASSERT(IsValidChannelCount(channel_count));
+
+                shared_memory->dsp_return_data[0] = OpusDecodeObject::GetWorkBufferSize(channel_count);
+                Send(Direction::Host, Message::GetWorkBufferSizeOK);
+                break;
+            }
+            case InitializeDecodeObject: {
+                auto buffer = shared_memory->host_send_data[0];
+                auto buffer_size = shared_memory->host_send_data[1];
+                auto sample_rate = s32(shared_memory->host_send_data[2]);
+                auto channel_count = s32(shared_memory->host_send_data[3]);
+
+                ASSERT(sample_rate >= 0);
+                ASSERT(IsValidChannelCount(channel_count));
+                ASSERT(buffer_size >= OpusDecodeObject::GetWorkBufferSize(channel_count));
+
+                if (auto const it = decode_objects.find(buffer); it != decode_objects.end()) {
+                    it->second.Shutdown();
+                    shared_memory->dsp_return_data[0] = it->second.InitializeDecoder(sample_rate, channel_count).raw;
+                } else {
+                    OpusDecodeObject obj{};
+                    shared_memory->dsp_return_data[0] = obj.InitializeDecoder(sample_rate, channel_count).raw;
+                    decode_objects.insert_or_assign(buffer, obj);
+                }
+                Send(Direction::Host, Message::InitializeDecodeObjectOK);
+                break;
+            }
+            case ShutdownDecodeObject: {
+                auto buffer = shared_memory->host_send_data[0];
+                //[[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+                if (auto const it = decode_objects.find(buffer); it != decode_objects.end()) {
+                    shared_memory->dsp_return_data[0] = it->second.Shutdown().raw;
+                } else {
+                    LOG_ERROR(Audio_DSP, "operating unregistered buffer {}", buffer);
+                    shared_memory->dsp_return_data[0] = Service::Audio::ResultLibOpusInvalidState.raw;
+                }
+                Send(Direction::Host, Message::ShutdownDecodeObjectOK);
+                break;
+            }
+            case DecodeInterleaved: {
+                auto start_time = system.CoreTiming().GetGlobalTimeUs();
+
+                auto buffer = shared_memory->host_send_data[0];
+                auto input_data = shared_memory->host_send_data[1];
+                auto input_data_size = shared_memory->host_send_data[2];
+                auto output_data = shared_memory->host_send_data[3];
+                auto output_data_size = shared_memory->host_send_data[4];
+                //auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
+                auto reset_requested = shared_memory->host_send_data[6];
+
+                u32 decoded_samples{0};
+
+                if (auto const it = decode_objects.find(buffer); it != decode_objects.end()) {
+                    auto res = ResultSuccess;
+                    if (reset_requested)
+                        res = it->second.ResetDecoder();
+                    if (res == ResultSuccess)
+                        res = it->second.Decode(decoded_samples, output_data, output_data_size, input_data, input_data_size);
+
+                    auto end_time = system.CoreTiming().GetGlobalTimeUs();
+                    shared_memory->dsp_return_data[0] = res.raw;
+                    shared_memory->dsp_return_data[1] = decoded_samples;
+                    shared_memory->dsp_return_data[2] = (end_time - start_time).count();
+                } else {
+                    LOG_ERROR(Audio_DSP, "operating unregistered buffer {}", buffer);
+                    shared_memory->dsp_return_data[0] = Service::Audio::ResultLibOpusInvalidState.raw;
+                }
+                Send(Direction::Host, Message::DecodeInterleavedOK);
+                break;
+            }
+            case MapMemory: {
+                [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
+                [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+                Send(Direction::Host, Message::MapMemoryOK);
+                break;
+            }
+            case UnmapMemory: {
+                [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
+                [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+                Send(Direction::Host, Message::UnmapMemoryOK);
+                break;
+            }
+            case GetWorkBufferSizeForMultiStream: {
+                auto total_stream_count = s32(shared_memory->host_send_data[0]);
+                auto stereo_stream_count = s32(shared_memory->host_send_data[1]);
+
+                ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
+
+                shared_memory->dsp_return_data[0] = OpusMultiStreamDecodeObject::GetWorkBufferSize(
+                    total_stream_count, stereo_stream_count);
+                Send(Direction::Host, Message::GetWorkBufferSizeForMultiStreamOK);
+                break;
+            }
+            case InitializeMultiStreamDecodeObject: {
+                auto buffer = shared_memory->host_send_data[0];
+                auto buffer_size = shared_memory->host_send_data[1];
+                auto sample_rate = s32(shared_memory->host_send_data[2]);
+                auto channel_count = s32(shared_memory->host_send_data[3]);
+                auto total_stream_count = s32(shared_memory->host_send_data[4]);
+                auto stereo_stream_count = s32(shared_memory->host_send_data[5]);
+                // Nintendo seem to have a bug here, they try to use &host_send_data[6] for the channel
+                // mappings, but [6] is never set, and there is not enough room in the argument data for
+                // more than 40 channels, when 255 are possible.
+                // It also means the mapping values are undefined, though likely always 0,
+                // and the mappings given by the game are ignored. The mappings are copied to this
+                // dedicated buffer host side, so let's do as intended.
+                auto mappings = shared_memory->channel_mapping.data();
+
+                ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
+                ASSERT(sample_rate >= 0);
+                ASSERT(buffer_size >= OpusMultiStreamDecodeObject::GetWorkBufferSize(total_stream_count, stereo_stream_count));
+
+                if (auto const it = ms_decode_objects.find(buffer); it != ms_decode_objects.end()) {
+                    it->second.Shutdown();
+                    shared_memory->dsp_return_data[0] = it->second.InitializeDecoder(sample_rate, total_stream_count, channel_count, stereo_stream_count, mappings).raw;
+                } else {
+                    OpusMultiStreamDecodeObject obj{};
+                    shared_memory->dsp_return_data[0] = obj.InitializeDecoder(sample_rate, total_stream_count, channel_count, stereo_stream_count, mappings).raw;
+                    ms_decode_objects.insert_or_assign(buffer, obj);
+                }
+                Send(Direction::Host, Message::InitializeMultiStreamDecodeObjectOK);
+                break;
+            }
+            case ShutdownMultiStreamDecodeObject: {
+                auto buffer = shared_memory->host_send_data[0];
+                //[[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
+                if (auto const it = ms_decode_objects.find(buffer); it != ms_decode_objects.end()) {
+                    shared_memory->dsp_return_data[0] = it->second.Shutdown().raw;
+                } else {
+                    LOG_ERROR(Audio_DSP, "operating unregistered buffer {}", buffer);
+                    shared_memory->dsp_return_data[0] = Service::Audio::ResultLibOpusInvalidState.raw;
+                }
+                Send(Direction::Host, Message::ShutdownMultiStreamDecodeObjectOK);
+                break;
+            }
+            case DecodeInterleavedForMultiStream: {
+                auto start_time = system.CoreTiming().GetGlobalTimeUs();
+
+                auto buffer = shared_memory->host_send_data[0];
+                auto input_data = shared_memory->host_send_data[1];
+                auto input_data_size = shared_memory->host_send_data[2];
+                auto output_data = shared_memory->host_send_data[3];
+                auto output_data_size = shared_memory->host_send_data[4];
+                //auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
+                auto reset_requested = shared_memory->host_send_data[6];
+
+                u32 decoded_samples{0};
+
+                if (auto const it = ms_decode_objects.find(buffer); it != ms_decode_objects.end()) {
+                    auto res = ResultSuccess;
+                    if (reset_requested)
+                        res = it->second.ResetDecoder();
+                    if (res == ResultSuccess)
+                        res = it->second.Decode(decoded_samples, output_data, output_data_size, input_data, input_data_size);
+
+                    auto end_time = system.CoreTiming().GetGlobalTimeUs();
+                    shared_memory->dsp_return_data[0] = res.raw;
+                    shared_memory->dsp_return_data[1] = decoded_samples;
+                    shared_memory->dsp_return_data[2] = (end_time - start_time).count();
+                } else {
+                    LOG_ERROR(Audio_DSP, "operating unregistered buffer {}", buffer);
+                    shared_memory->dsp_return_data[0] = Service::Audio::ResultLibOpusInvalidState.raw;
+                }
+                Send(Direction::Host, Message::DecodeInterleavedForMultiStreamOK);
+                break;
+            }
+            default:
+                LOG_ERROR(Audio_DSP, "Invalid OpusDecoder command {}", msg);
+                continue;
+            }
+        }
+    });
     running = true;
     Send(Direction::Host, Message::StartOK);
 }
 
-void OpusDecoder::Main(std::stop_token stop_token) {
-    Common::SetCurrentThreadName("DSP_OpusDecoder_Main");
-
-    while (!stop_token.stop_requested()) {
-        auto msg = Receive(Direction::DSP, stop_token);
-        switch (msg) {
-        case Shutdown:
-            Send(Direction::Host, Message::ShutdownOK);
-            return;
-
-        case GetWorkBufferSize: {
-            auto channel_count = static_cast<s32>(shared_memory->host_send_data[0]);
-
-            ASSERT(IsValidChannelCount(channel_count));
-
-            shared_memory->dsp_return_data[0] = OpusDecodeObject::GetWorkBufferSize(channel_count);
-            Send(Direction::Host, Message::GetWorkBufferSizeOK);
-        } break;
-
-        case InitializeDecodeObject: {
-            auto buffer = shared_memory->host_send_data[0];
-            auto buffer_size = shared_memory->host_send_data[1];
-            auto sample_rate = static_cast<s32>(shared_memory->host_send_data[2]);
-            auto channel_count = static_cast<s32>(shared_memory->host_send_data[3]);
-
-            ASSERT(sample_rate >= 0);
-            ASSERT(IsValidChannelCount(channel_count));
-            ASSERT(buffer_size >= OpusDecodeObject::GetWorkBufferSize(channel_count));
-
-            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
-            shared_memory->dsp_return_data[0] =
-                decoder_object.InitializeDecoder(sample_rate, channel_count);
-
-            Send(Direction::Host, Message::InitializeDecodeObjectOK);
-        } break;
-
-        case ShutdownDecodeObject: {
-            auto buffer = shared_memory->host_send_data[0];
-            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
-
-            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
-            shared_memory->dsp_return_data[0] = decoder_object.Shutdown();
-
-            Send(Direction::Host, Message::ShutdownDecodeObjectOK);
-        } break;
-
-        case DecodeInterleaved: {
-            auto start_time = system.CoreTiming().GetGlobalTimeUs();
-
-            auto buffer = shared_memory->host_send_data[0];
-            auto input_data = shared_memory->host_send_data[1];
-            auto input_data_size = shared_memory->host_send_data[2];
-            auto output_data = shared_memory->host_send_data[3];
-            auto output_data_size = shared_memory->host_send_data[4];
-            auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
-            auto reset_requested = shared_memory->host_send_data[6];
-
-            u32 decoded_samples{0};
-
-            auto& decoder_object = OpusDecodeObject::Initialize(buffer, buffer);
-            s32 error_code{OPUS_OK};
-            if (reset_requested) {
-                error_code = decoder_object.ResetDecoder();
-            }
-
-            if (error_code == OPUS_OK) {
-                error_code = decoder_object.Decode(decoded_samples, output_data, output_data_size,
-                                                   input_data, input_data_size);
-            }
-
-            if (error_code == OPUS_OK) {
-                if (final_range && decoder_object.GetFinalRange() != final_range) {
-                    error_code = OPUS_INVALID_PACKET;
-                }
-            }
-
-            auto end_time = system.CoreTiming().GetGlobalTimeUs();
-            shared_memory->dsp_return_data[0] = error_code;
-            shared_memory->dsp_return_data[1] = decoded_samples;
-            shared_memory->dsp_return_data[2] = (end_time - start_time).count();
-
-            Send(Direction::Host, Message::DecodeInterleavedOK);
-        } break;
-
-        case MapMemory: {
-            [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
-            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
-            Send(Direction::Host, Message::MapMemoryOK);
-        } break;
-
-        case UnmapMemory: {
-            [[maybe_unused]] auto buffer = shared_memory->host_send_data[0];
-            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
-            Send(Direction::Host, Message::UnmapMemoryOK);
-        } break;
-
-        case GetWorkBufferSizeForMultiStream: {
-            auto total_stream_count = static_cast<s32>(shared_memory->host_send_data[0]);
-            auto stereo_stream_count = static_cast<s32>(shared_memory->host_send_data[1]);
-
-            ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
-
-            shared_memory->dsp_return_data[0] = OpusMultiStreamDecodeObject::GetWorkBufferSize(
-                total_stream_count, stereo_stream_count);
-            Send(Direction::Host, Message::GetWorkBufferSizeForMultiStreamOK);
-        } break;
-
-        case InitializeMultiStreamDecodeObject: {
-            auto buffer = shared_memory->host_send_data[0];
-            auto buffer_size = shared_memory->host_send_data[1];
-            auto sample_rate = static_cast<s32>(shared_memory->host_send_data[2]);
-            auto channel_count = static_cast<s32>(shared_memory->host_send_data[3]);
-            auto total_stream_count = static_cast<s32>(shared_memory->host_send_data[4]);
-            auto stereo_stream_count = static_cast<s32>(shared_memory->host_send_data[5]);
-            // Nintendo seem to have a bug here, they try to use &host_send_data[6] for the channel
-            // mappings, but [6] is never set, and there is not enough room in the argument data for
-            // more than 40 channels, when 255 are possible.
-            // It also means the mapping values are undefined, though likely always 0,
-            // and the mappings given by the game are ignored. The mappings are copied to this
-            // dedicated buffer host side, so let's do as intended.
-            auto mappings = shared_memory->channel_mapping.data();
-
-            ASSERT(IsValidMultiStreamStreamCounts(total_stream_count, stereo_stream_count));
-            ASSERT(sample_rate >= 0);
-            ASSERT(buffer_size >= OpusMultiStreamDecodeObject::GetWorkBufferSize(
-                                      total_stream_count, stereo_stream_count));
-
-            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
-            shared_memory->dsp_return_data[0] = decoder_object.InitializeDecoder(
-                sample_rate, total_stream_count, channel_count, stereo_stream_count, mappings);
-
-            Send(Direction::Host, Message::InitializeMultiStreamDecodeObjectOK);
-        } break;
-
-        case ShutdownMultiStreamDecodeObject: {
-            auto buffer = shared_memory->host_send_data[0];
-            [[maybe_unused]] auto buffer_size = shared_memory->host_send_data[1];
-
-            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
-            shared_memory->dsp_return_data[0] = decoder_object.Shutdown();
-
-            Send(Direction::Host, Message::ShutdownMultiStreamDecodeObjectOK);
-        } break;
-
-        case DecodeInterleavedForMultiStream: {
-            auto start_time = system.CoreTiming().GetGlobalTimeUs();
-
-            auto buffer = shared_memory->host_send_data[0];
-            auto input_data = shared_memory->host_send_data[1];
-            auto input_data_size = shared_memory->host_send_data[2];
-            auto output_data = shared_memory->host_send_data[3];
-            auto output_data_size = shared_memory->host_send_data[4];
-            auto final_range = static_cast<u32>(shared_memory->host_send_data[5]);
-            auto reset_requested = shared_memory->host_send_data[6];
-
-            u32 decoded_samples{0};
-
-            auto& decoder_object = OpusMultiStreamDecodeObject::Initialize(buffer, buffer);
-            s32 error_code{OPUS_OK};
-            if (reset_requested) {
-                error_code = decoder_object.ResetDecoder();
-            }
-
-            if (error_code == OPUS_OK) {
-                error_code = decoder_object.Decode(decoded_samples, output_data, output_data_size,
-                                                   input_data, input_data_size);
-            }
-
-            if (error_code == OPUS_OK) {
-                if (final_range && decoder_object.GetFinalRange() != final_range) {
-                    error_code = OPUS_INVALID_PACKET;
-                }
-            }
-
-            auto end_time = system.CoreTiming().GetGlobalTimeUs();
-            shared_memory->dsp_return_data[0] = error_code;
-            shared_memory->dsp_return_data[1] = decoded_samples;
-            shared_memory->dsp_return_data[2] = (end_time - start_time).count();
-
-            Send(Direction::Host, Message::DecodeInterleavedForMultiStreamOK);
-        } break;
-
-        default:
-            LOG_ERROR(Service_Audio, "Invalid OpusDecoder command {}", msg);
-            continue;
-        }
-    }
-}
-
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_decoder.h

@@ -9,6 +9,9 @@
 #include <memory>
 #include <thread>
 
+#include "ankerl/unordered_dense.h"
+#include "audio_core/adsp/apps/opus/opus_decode_object.h"
+#include "audio_core/adsp/apps/opus/opus_multistream_decode_object.h"
 #include "audio_core/adsp/apps/opus/shared_memory.h"
 #include "audio_core/adsp/mailbox.h"
 #include "common/common_types.h"
@@ -68,9 +71,7 @@ public:
     }
 
 private:
-    /**
+    /// @brief Initializing thread, launched at audio_core boot to avoid blocking the main emu boot thread.
-     * Initializing thread, launched at audio_core boot to avoid blocking the main emu boot thread.
-     */
     void Init(std::stop_token stop_token);
     /**
      * Main OpusDecoder thread, responsible for processing the incoming Opus packets.
@@ -90,6 +91,9 @@ private:
     /// Structure shared with the host, input data set by the host before sending a mailbox message,
     /// and the responses are written back by the OpusDecoder.
     SharedMemory* shared_memory{};
+
+    ankerl::unordered_dense::map<u64, OpusDecodeObject> decode_objects;
+    ankerl::unordered_dense::map<u64, OpusMultiStreamDecodeObject> ms_decode_objects;
 };
 
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_multistream_decode_object.cpp

@@ -4,8 +4,17 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavcodec/codec.h>
+#include <libavcodec/packet.h>
+#include <libavutil/channel_layout.h>
+#include <libavutil/frame.h>
+}
 #include "audio_core/adsp/apps/opus/opus_multistream_decode_object.h"
 #include "common/assert.h"
+#include "core/hle/result.h"
+#include "core/hle/service/audio/errors.h"
 
 namespace AudioCore::ADSP::OpusDecoder {
 
@@ -13,101 +22,59 @@ namespace {
 constexpr u32 OpusStreamCountMax = 255;
 
 bool IsValidStreamCounts(u32 total_stream_count, u32 stereo_stream_count) {
-    return total_stream_count > 0 && total_stream_count <= OpusStreamCountMax &&
+    return total_stream_count > 0 && total_stream_count <= OpusStreamCountMax
-           static_cast<s32>(stereo_stream_count) >= 0 &&
+        && s32(stereo_stream_count) >= 0 && stereo_stream_count <= total_stream_count;
-           stereo_stream_count <= total_stream_count;
 }
 } // namespace
 
-u32 OpusMultiStreamDecodeObject::GetWorkBufferSize(u32 total_stream_count,
+u32 OpusMultiStreamDecodeObject::GetWorkBufferSize(u32 total_stream_count, u32 stereo_stream_count) {
-                                                   u32 stereo_stream_count) {
+    if (IsValidStreamCounts(total_stream_count, stereo_stream_count))
-    if (IsValidStreamCounts(total_stream_count, stereo_stream_count)) {
+        return u32(sizeof(OpusMultiStreamDecodeObject)) + 2556 * (total_stream_count * stereo_stream_count);
-        return static_cast<u32>(sizeof(OpusMultiStreamDecodeObject)) +
-               opus_multistream_decoder_get_size(total_stream_count, stereo_stream_count);
-    }
     return 0;
 }
 
-OpusMultiStreamDecodeObject& OpusMultiStreamDecodeObject::Initialize(u64 buffer, u64 buffer2) {
+Result OpusMultiStreamDecodeObject::InitializeDecoder(u32 sample_rate, u32 total_stream_count, u32 channel_count, u32 stereo_stream_count, u8* mappings) {
-    auto* new_decoder = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer);
+    if ((codec = avcodec_find_decoder(AV_CODEC_ID_OPUS)) == nullptr)
-    auto* comparison = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer2);
+        return Service::Audio::ResultLibOpusInvalidState;
-
+    if ((avctx = avcodec_alloc_context3(codec)))
-    if (new_decoder->magic == DecodeMultiStreamObjectMagic) {
+        return Service::Audio::ResultLibOpusInvalidState;
-        if (!new_decoder->initialized ||
+    avctx->sample_rate = sample_rate;
-            (new_decoder->initialized && new_decoder->self == comparison)) {
+    av_channel_layout_default(&avctx->ch_layout, channel_count);
-            new_decoder->state_valid = true;
+    return ResultSuccess;
-        }
-    } else {
-        new_decoder->initialized = false;
-        new_decoder->state_valid = true;
-    }
-    return *new_decoder;
 }
 
-s32 OpusMultiStreamDecodeObject::InitializeDecoder(u32 sample_rate, u32 total_stream_count,
+Result OpusMultiStreamDecodeObject::Shutdown() {
-                                                   u32 channel_count, u32 stereo_stream_count,
+    if (avctx)
-                                                   u8* mappings) {
+        avcodec_free_context(&avctx);
-    if (!state_valid) {
+    return ResultSuccess;
-        return OPUS_INVALID_STATE;
-    }
-
-    if (initialized) {
-        return OPUS_OK;
-    }
-
-    // See OpusDecodeObject::InitializeDecoder for an explanation of this
-    decoder = (LibOpusMSDecoder*)(this + 1);
-    s32 ret = opus_multistream_decoder_init(decoder, sample_rate, channel_count, total_stream_count,
-                                            stereo_stream_count, mappings);
-    if (ret == OPUS_OK) {
-        magic = DecodeMultiStreamObjectMagic;
-        initialized = true;
-        state_valid = true;
-        self = this;
-        final_range = 0;
-    }
-    return ret;
 }
 
-s32 OpusMultiStreamDecodeObject::Shutdown() {
+Result OpusMultiStreamDecodeObject::ResetDecoder() {
-    if (!state_valid) {
+    if (avctx) {
-        return OPUS_INVALID_STATE;
+        avcodec_flush_buffers(avctx);
+        return ResultSuccess;
     }
-
+    return Service::Audio::ResultLibOpusInvalidState;
-    if (initialized) {
-        magic = 0x0;
-        initialized = false;
-        state_valid = false;
-        self = nullptr;
-        final_range = 0;
-        decoder = nullptr;
-    }
-    return OPUS_OK;
 }
 
-s32 OpusMultiStreamDecodeObject::ResetDecoder() {
+Result OpusMultiStreamDecodeObject::Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data, u64 input_data_size) {
-    return opus_multistream_decoder_ctl(decoder, OPUS_RESET_STATE);
-}
-
-s32 OpusMultiStreamDecodeObject::Decode(u32& out_sample_count, u64 output_data,
-                                        u64 output_data_size, u64 input_data, u64 input_data_size) {
-    ASSERT(initialized);
     out_sample_count = 0;
+    if (avctx) {
+        AVPacket* avpkt = av_packet_alloc();
+        av_new_packet(avpkt, int(input_data_size));
+        std::memcpy(avpkt->data, reinterpret_cast<const u8*>(input_data), input_data_size);
+        avcodec_send_packet(avctx, avpkt);
 
-    if (!state_valid) {
+        AVFrame* frame = av_frame_alloc();
-        return OPUS_INVALID_STATE;
+        avcodec_receive_frame(avctx, frame);
+        std::memcpy(reinterpret_cast<u16*>(output_data), frame->data, output_data_size);
+        av_frame_free(&frame);
+        av_packet_free(&avpkt);
+
+        out_sample_count = frame->nb_samples;
+        return ResultSuccess;
     }
-
+    return Service::Audio::ResultLibOpusInvalidState;
-    auto ret_code_or_samples = opus_multistream_decode(
-        decoder, reinterpret_cast<const u8*>(input_data), static_cast<opus_int32>(input_data_size),
-        reinterpret_cast<opus_int16*>(output_data), static_cast<opus_int32>(output_data_size), 0);
-
-    if (ret_code_or_samples < OPUS_OK) {
-        return ret_code_or_samples;
-    }
-
-    out_sample_count = ret_code_or_samples;
-    return opus_multistream_decoder_ctl(decoder, OPUS_GET_FINAL_RANGE_REQUEST, &final_range);
 }
 
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_multistream_decode_object.h

@@ -1,39 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
-#include <opus_multistream.h>
+#include "audio_core/adsp/apps/opus/opus_types.h"
-
 #include "common/common_types.h"
+#include "core/hle/result.h"
+
+struct AVCodec;
+struct AVCodecContext;
 
 namespace AudioCore::ADSP::OpusDecoder {
-using LibOpusMSDecoder = ::OpusMSDecoder;
-static constexpr u32 DecodeMultiStreamObjectMagic = 0xDEADBEEF;
 
 class OpusMultiStreamDecodeObject {
 public:
     static u32 GetWorkBufferSize(u32 total_stream_count, u32 stereo_stream_count);
-    static OpusMultiStreamDecodeObject& Initialize(u64 buffer, u64 buffer2);
 
-    s32 InitializeDecoder(u32 sample_rate, u32 total_stream_count, u32 channel_count,
+    Result InitializeDecoder(u32 sample_rate, u32 total_stream_count, u32 channel_count, u32 stereo_stream_count, u8* mappings);
-                          u32 stereo_stream_count, u8* mappings);
+    Result Shutdown();
-    s32 Shutdown();
+    Result ResetDecoder();
-    s32 ResetDecoder();
+    Result Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data, u64 input_data_size);
-    s32 Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data,
-               u64 input_data_size);
-    u32 GetFinalRange() const noexcept {
-        return final_range;
-    }
 
-private:
+    AVCodec const* codec = nullptr;
-    u32 magic;
+    AVCodecContext* avctx = nullptr;
-    bool initialized;
-    bool state_valid;
-    OpusMultiStreamDecodeObject* self;
-    u32 final_range;
-    LibOpusMSDecoder* decoder;
 };
-static_assert(std::is_trivially_constructible_v<OpusMultiStreamDecodeObject>);
 
 } // namespace AudioCore::ADSP::OpusDecoder

src/audio_core/adsp/apps/opus/opus_types.h

@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace AudioCore::ADSP {
+
+static constexpr u32 DECODE_OBJECT_MAGIC = 0xDEADBEEF;
+struct LibOpusDecoder {
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    LibOpusDecoder* self;
+    u32 final_range;
+    void* decoder;
+};
+static_assert(sizeof(LibOpusDecoder) == 32);
+
+static constexpr u32 DECODE_MULTISTREAM_OBJECT_MAGIC = 0xDEADBEEF;
+struct LibOpusMultistreamDecoder {
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    LibOpusMultistreamDecoder* self;
+    u32 final_range;
+    void* decoder;
+};
+static_assert(sizeof(LibOpusMultistreamDecoder) == 32);
+
+}

src/audio_core/opus/hardware_opus.cpp

@@ -9,39 +9,18 @@
 #include "audio_core/audio_core.h"
 #include "audio_core/opus/hardware_opus.h"
 #include "core/core.h"
+#include "core/hle/result.h"
 
 namespace AudioCore::OpusDecoder {
+
 namespace {
 using namespace Service::Audio;
-
-static constexpr Result ResultCodeFromLibOpusErrorCode(u64 error_code) {
-    s32 error{static_cast<s32>(error_code)};
-    ASSERT(error <= OPUS_OK);
-    switch (error) {
-    case OPUS_ALLOC_FAIL:
-        R_THROW(ResultLibOpusAllocFail);
-    case OPUS_INVALID_STATE:
-        R_THROW(ResultLibOpusInvalidState);
-    case OPUS_UNIMPLEMENTED:
-        R_THROW(ResultLibOpusUnimplemented);
-    case OPUS_INVALID_PACKET:
-        R_THROW(ResultLibOpusInvalidPacket);
-    case OPUS_INTERNAL_ERROR:
-        R_THROW(ResultLibOpusInternalError);
-    case OPUS_BUFFER_TOO_SMALL:
-        R_THROW(ResultBufferTooSmall);
-    case OPUS_BAD_ARG:
-        R_THROW(ResultLibOpusBadArg);
-    case OPUS_OK:
-        R_RETURN(ResultSuccess);
-    }
-    UNREACHABLE();
-}
-
 } // namespace
 
 HardwareOpus::HardwareOpus(Core::System& system_)
-    : system{system_}, opus_decoder{system.AudioCore().ADSP().OpusDecoder()} {
+    : system{system_}
+    , opus_decoder{system.AudioCore().ADSP().OpusDecoder()}
+{
     opus_decoder.SetSharedMemory(shared_memory);
 }
 
@@ -92,7 +71,7 @@ Result HardwareOpus::InitializeDecodeObject(u32 sample_rate, u32 channel_count,
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
 
-    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
 }
 
 Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
@@ -120,7 +99,7 @@ Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 chan
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
 
-    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
 }
 
 Result HardwareOpus::ShutdownDecodeObject(void* buffer, u64 buffer_size) {
@@ -134,7 +113,7 @@ Result HardwareOpus::ShutdownDecodeObject(void* buffer, u64 buffer_size) {
                "Expected Opus shutdown code {}, got {}",
                ADSP::OpusDecoder::Message::ShutdownDecodeObjectOK, msg);
 
-    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
 }
 
 Result HardwareOpus::ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_size) {
@@ -149,7 +128,7 @@ Result HardwareOpus::ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_si
                "Expected Opus shutdown code {}, got {}",
                ADSP::OpusDecoder::Message::ShutdownMultiStreamDecodeObjectOK, msg);
 
-    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
+    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
 }
 
 Result HardwareOpus::DecodeInterleaved(u32& out_sample_count, void* output_data,
@@ -173,12 +152,12 @@ Result HardwareOpus::DecodeInterleaved(u32& out_sample_count, void* output_data,
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
 
-    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    auto error_code = s32(shared_memory.dsp_return_data[0]);
-    if (error_code == OPUS_OK) {
+    if (error_code == ResultSuccess.raw) {
-        out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
+        out_sample_count = u32(shared_memory.dsp_return_data[1]);
         out_time_taken = 1000 * shared_memory.dsp_return_data[2];
     }
-    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
+    R_RETURN(Result(u32(error_code)));
 }
 
 Result HardwareOpus::DecodeInterleavedForMultiStream(u32& out_sample_count, void* output_data,
@@ -187,29 +166,27 @@ Result HardwareOpus::DecodeInterleavedForMultiStream(u32& out_sample_count, void
                                                      void* buffer, u64& out_time_taken,
                                                      bool reset) {
     std::scoped_lock l{mutex};
-    shared_memory.host_send_data[0] = (u64)buffer;
+    shared_memory.host_send_data[0] = u64(buffer);
-    shared_memory.host_send_data[1] = (u64)input_data;
+    shared_memory.host_send_data[1] = u64(input_data);
     shared_memory.host_send_data[2] = input_data_size;
-    shared_memory.host_send_data[3] = (u64)output_data;
+    shared_memory.host_send_data[3] = u64(output_data);
     shared_memory.host_send_data[4] = output_data_size;
     shared_memory.host_send_data[5] = 0;
     shared_memory.host_send_data[6] = reset;
 
-    opus_decoder.Send(ADSP::Direction::DSP,
+    opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStream);
-                      ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStream);
     auto msg = opus_decoder.Receive(ADSP::Direction::Host);
     if (msg != ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK) {
-        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}", ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK, msg);
-                  ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK, msg);
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
 
-    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    auto const error_code = shared_memory.dsp_return_data[0];
-    if (error_code == OPUS_OK) {
+    if (error_code == ResultSuccess.raw) {
         out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
         out_time_taken = 1000 * shared_memory.dsp_return_data[2];
     }
-    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
+    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
 }
 
 Result HardwareOpus::MapMemory(void* buffer, u64 buffer_size) {
@@ -220,8 +197,7 @@ Result HardwareOpus::MapMemory(void* buffer, u64 buffer_size) {
     opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::MapMemory);
     auto msg = opus_decoder.Receive(ADSP::Direction::Host);
     if (msg != ADSP::OpusDecoder::Message::MapMemoryOK) {
-        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}", ADSP::OpusDecoder::Message::MapMemoryOK, msg);
-                  ADSP::OpusDecoder::Message::MapMemoryOK, msg);
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
     R_SUCCEED();
@@ -235,8 +211,7 @@ Result HardwareOpus::UnmapMemory(void* buffer, u64 buffer_size) {
     opus_decoder.Send(ADSP::Direction::DSP, ADSP::OpusDecoder::Message::UnmapMemory);
     auto msg = opus_decoder.Receive(ADSP::Direction::Host);
     if (msg != ADSP::OpusDecoder::Message::UnmapMemoryOK) {
-        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}", ADSP::OpusDecoder::Message::UnmapMemoryOK, msg);
-                  ADSP::OpusDecoder::Message::UnmapMemoryOK, msg);
         R_THROW(ResultInvalidOpusDSPReturnCode);
     }
     R_SUCCEED();

src/audio_core/opus/hardware_opus.h

@@ -1,11 +1,12 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
 #include <mutex>
-#include <opus.h>
-
 #include "audio_core/adsp/apps/opus/opus_decoder.h"
 #include "audio_core/adsp/apps/opus/shared_memory.h"
 #include "audio_core/adsp/mailbox.h"

src/common/settings.cpp

@@ -146,7 +146,7 @@ void LogSettings() {
 #undef LOG_PATH
 }
 
-bool GetDebugKnobAt(u8 i) {
+bool getDebugKnobAt(u8 i) {
     return (values.debug_knobs.GetValue() & (1 << (i & 0xF))) != 0;
 }
 

src/common/settings.h

@@ -904,7 +904,7 @@ struct Values {
                                            0,
                                            65535,
                                            "debug_knobs",
-                                           Category::System,
+                                           Category::Debugging,
                                            Specialization::Countable,
                                            true,
                                            true};
@@ -947,7 +947,7 @@ constexpr u32 MAX_FRAME_GEN_MULTIPLIER = 4;
 
 [[nodiscard]] size_t FrameGenMaxGenerations();
 
-bool GetDebugKnobAt(u8 i);
+bool getDebugKnobAt(u8 i);
 
 void UpdateGPUAccuracy();
 bool IsGPULevelHigh();

src/core/CMakeLists.txt

@@ -1205,7 +1205,6 @@ else()
     endif()
 endif()
 
-target_include_directories(core PRIVATE ${OPUS_INCLUDE_DIRS})
 target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb tz)
 
 if (BOOST_NO_HEADERS)

src/video_core/CMakeLists.txt

@@ -367,9 +367,7 @@ endif()
 if (YUZU_USE_EXTERNAL_FFMPEG)
     add_dependencies(video_core ffmpeg-build)
 endif()
-
 target_include_directories(video_core PUBLIC ${FFmpeg_INCLUDE_DIR})
-
 target_link_libraries(video_core PRIVATE ${FFmpeg_LIBRARIES})
 target_link_options(video_core PRIVATE ${FFmpeg_LDFLAGS})