2026-09-09 16:05:11

Signed-off-by: lizzie <lizzie@eden-emu.dev>
2026-09-07 23:31:06
2026-09-12 14:48:49 +00:00 · 2026-09-11 14:42:18 +00:00 · 2026-09-11 14:42:18 +00:00 · 2026-09-11 14:42:18 +00:00 · 2026-09-11 14:42:18 +00:00 · 2026-09-11 14:42:16 +00:00
45 changed files with 1088 additions and 635 deletions
@@ -0,0 +1,28 @@
+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" ${NEON_RUNTIME_CHECK_DEFAULT})
+     option(OPUS_PRESUME_NEON "Assume target CPU has NEON support" OFF)
+     if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
+       set(OPUS_PRESUME_NEON ON)
@@ -0,0 +1,153 @@
+From bf455b67b4eaa446ffae5d25410b141b7b1b1082 Mon Sep 17 00:00:00 2001
+From: crueter <crueter@eden-emu.dev>
+Date: Mon, 8 Sep 2025 12:08:20 -0400
+Subject: [PATCH] [cmake] `OPUS_INSTALL` option; only default install if root
+ project
+
+Signed-off-by: crueter <crueter@eden-emu.dev>
+---
+ CMakeLists.txt | 112 ++++++++++++++++++++++++++++---------------------
+ 1 file changed, 64 insertions(+), 48 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index fcf034b19..08b5e16f8 100644
+--- a/CMakeLists.txt
+++ b/CMakeLists.txt
+@@ -4,6 +4,13 @@ list(APPEND CMAKE_MODULE_PATH "${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)
@@ -464,6 +464,21 @@ 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)
@@ -0,0 +1,22 @@
+# 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()
@@ -82,7 +82,7 @@
        "name": "ffmpeg",
        "package": "FFmpeg",
        "repo": "crueter-ci/FFmpeg",
-        "version": "9.0.1-1788303113-bf1b838f2a"
+        "version": "9.0.1-1788120736-bf1b838f2a"
    },
    "fmt": {
        "hash": "f0da82c545b01692e9fd30fdfb613dbb8dd9716983dcd0ff19ac2a8d36f74beb5540ef38072fdecc1e34191b3682a8542ecbf3a61ef287dbba0a2679d4e023f2",
@@ -210,6 +210,21 @@
        "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",
@@ -60,6 +60,7 @@ 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:

@@ -120,7 +121,7 @@ sudo emerge -a \
    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-video/ffmpeg \
+    media-gfx/renderdoc media-libs/libva media-libs/opus media-video/ffmpeg \
    media-libs/VulkanMemoryAllocator media-libs/libsdl3 media-libs/cubeb \
    net-libs/enet \
    sys-libs/zlib \
@@ -152,7 +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 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 opus 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.
@@ -165,7 +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 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 libopus-dev libasound2t64 vulkan-utility-libraries-dev
 ```

 * Ubuntu 26.04, Linux Mint 22.3, or Debian 13 or later is required.
@@ -212,7 +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  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 opus-dev jq patch
 ```

 </details>
@@ -260,7 +261,7 @@ brew install molten-vk

 As root run:
 ```sh
-pkg install devel/cmake devel/sdl3 devel/boost-libs devel/catch2 devel/libfmt devel/nlohmann-json devel/ninja devel/nasm devel/autoconf devel/pkgconf devel/qt6-base x11-toolkits/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 graphics/vulkan-utility-libraries graphics/vulkan-headers graphics/spirv-headers quazip-qt6
+pkg install devel/cmake devel/sdl3 devel/boost-libs devel/catch2 devel/libfmt devel/nlohmann-json devel/ninja devel/nasm devel/autoconf devel/pkgconf devel/qt6-base x11-toolkits/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 graphics/vulkan-utility-libraries graphics/vulkan-headers graphics/spirv-headers quazip-qt6
 ```

 If using FreeBSD 12 or prior, use `devel/pkg-config` instead.
@@ -274,7 +275,7 @@ 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 qt6-qtbase qt6-qtcharts qt6-qtmultimedia qt6-qttools 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 libopus qt6-qtbase qt6-qtcharts qt6-qtmultimedia qt6-qttools cpp-httplib lz4 vulkan-headers nasm autoconf enet pkg-config libusb1 libcxx frozen
 ```

 [Caveats](./Caveats.md#netbsd).
@@ -305,7 +306,7 @@ 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 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 opus sdl3 zlib compress/zstd unzip pkg-config nasm autoconf mesa library/libdrm header-drm developer/fmt
 ```

 [Caveats](./Caveats.md#openindiana).
@@ -329,7 +330,7 @@ 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 libusb 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 opus libusb openssl SDL3"
 # Either x86_64 or clang-aarch64 (Windows on ARM)
 packages="$BASE"
 for pkg in $MINGW; do
@@ -355,7 +356,7 @@ pacman -Syuu --needed --noconfirm $packages
 <summary>HaikuOS</summary>

 ```sh
-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
+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
 ```

 [Caveats](./Caveats.md#haikuos).
@@ -12,7 +12,7 @@ pkgs.mkShellNoCC {
    git cmake clang gnumake patch jq pkg-config
    # libraries
    openssl boost fmt nlohmann_json lz4 zlib zstd
-    enet vulkan-headers vulkan-utility-libraries
+    enet libopus vulkan-headers vulkan-utility-libraries
    spirv-tools spirv-headers vulkan-loader unzip
    glslang python3 httplib cpp-jwt ffmpeg-headless
    libusb1 cubeb
@@ -79,6 +79,13 @@ 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,
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later

 // SPDX-FileCopyrightText: 2023 yuzu Emulator Project
@@ -37,7 +37,7 @@ class Game(

    val settingsName: String
        get() {
-            val programIdLong = programId.toLongOrNull() ?: 0L
+            val programIdLong = programId.toLong()
            return if (programIdLong == 0L) {
                FileUtil.getFilename(Uri.parse(path))
            } else {
@@ -47,7 +47,7 @@ class Game(

    val programIdHex: String
        get() {
-            val programIdLong = programId.toLongOrNull() ?: 0L
+            val programIdLong = programId.toLong()
            return if (programIdLong == 0L) {
                "0"
            } else {
@@ -1783,6 +1783,51 @@ 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>
@@ -15,6 +15,10 @@ add_library(audio_core STATIC
    adsp/apps/audio_renderer/command_list_processor.h
    adsp/apps/opus/opus_decoder.cpp
    adsp/apps/opus/opus_decoder.h
+    adsp/apps/opus/opus_decode_object.cpp
+    adsp/apps/opus/opus_decode_object.h
+    adsp/apps/opus/opus_multistream_decode_object.cpp
+    adsp/apps/opus/opus_multistream_decode_object.h
    adsp/apps/opus/shared_memory.h
    audio_core.cpp
    audio_core.h
@@ -222,14 +226,8 @@ else()
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-sign-conversion>)
 endif()

-if (YUZU_USE_EXTERNAL_FFMPEG)
-    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)
+target_include_directories(audio_core PRIVATE ${OPUS_INCLUDE_DIRS})
+target_link_libraries(audio_core PUBLIC common core Opus::opus)

 if (ENABLE_CUBEB)
    target_sources(audio_core PRIVATE
@@ -0,0 +1,107 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/adsp/apps/opus/opus_decode_object.h"
+#include "common/assert.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)) {
+        return 0;
+    }
+    return static_cast<u32>(sizeof(OpusDecodeObject)) + opus_decoder_get_size(channel_count);
+}
+
+OpusDecodeObject& OpusDecodeObject::Initialize(u64 buffer, u64 buffer2) {
+    auto* new_decoder = reinterpret_cast<OpusDecodeObject*>(buffer);
+    auto* comparison = reinterpret_cast<OpusDecodeObject*>(buffer2);
+
+    if (new_decoder->magic == DecodeObjectMagic) {
+        if (!new_decoder->initialized ||
+            (new_decoder->initialized && new_decoder->self == comparison)) {
+            new_decoder->state_valid = true;
+        }
+    } else {
+        new_decoder->initialized = false;
+        new_decoder->state_valid = true;
+    }
+    return *new_decoder;
+}
+
+s32 OpusDecodeObject::InitializeDecoder(u32 sample_rate, u32 channel_count) {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    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() {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        magic = 0x0;
+        initialized = false;
+        state_valid = false;
+        self = nullptr;
+        final_range = 0;
+        decoder = nullptr;
+    }
+    return OPUS_OK;
+}
+
+s32 OpusDecodeObject::ResetDecoder() {
+    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 (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    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
@@ -0,0 +1,38 @@
+// 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"
+
+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);
+    s32 Shutdown();
+    s32 ResetDecoder();
+    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:
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    OpusDecodeObject* self;
+    u32 final_range;
+    LibOpusDecoder* decoder;
+};
+static_assert(std::is_trivially_constructible_v<OpusDecodeObject>);
+
+} // namespace AudioCore::ADSP::OpusDecoder
@@ -5,388 +5,55 @@
 // SPDX-License-Identifier: GPL-2.0-or-later

 #include <array>
+#include <chrono>

-extern "C" {
-#include <libswresample/swresample.h>
-#include <libavcodec/avcodec.h>
-#include <libavcodec/codec.h>
-#include <libavcodec/packet.h>
-#include <libavutil/channel_layout.h>
-#include <libavutil/frame.h>
-#include <libavutil/opt.h>
-#include <libavutil/samplefmt.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/audio_core.h"
+#include "audio_core/common/common.h"
 #include "common/logging.h"
 #include "common/thread.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/hle/service/audio/errors.h"

 namespace AudioCore::ADSP::OpusDecoder {

 namespace {
-constexpr u32 OPUS_STREAM_COUNT_MAX = 255;
-// https://git.ffmpeg.org/gitweb/ffmpeg.git/blob_plain/HEAD:/libavcodec/libopusdec.c
-constexpr u32 OPUS_HEAD_SIZE = 19;
-constexpr u32 OPUS_MAX_CHANNELS = 2;
+constexpr size_t OpusStreamCountMax = 255;

 bool IsValidChannelCount(u32 channel_count) {
-    return channel_count >= 1 || channel_count <= OPUS_MAX_CHANNELS;
+    return channel_count == 1 || channel_count == 2;
 }

-bool IsValidStreamCounts(u32 total_stream_count, u32 stereo_stream_count) {
-    return total_stream_count > 0 && total_stream_count <= OPUS_STREAM_COUNT_MAX
-        && s32(stereo_stream_count) >= 0 && stereo_stream_count <= total_stream_count;
+bool IsValidMultiStreamChannelCount(u32 channel_count) {
+    return channel_count <= OpusStreamCountMax;
 }

-class OpusGenericDecodeObject {
-public:
-    static u32 GetWorkBufferSizeMultistream(u32 total_stream_count, u32 stereo_stream_count) {
-        if (IsValidStreamCounts(total_stream_count, stereo_stream_count))
-            return 48 + 2556 * (total_stream_count * stereo_stream_count);
-        return 0;
-    }
-
-    static u32 GetWorkBufferSize(u32 channel_count) {
-        if (channel_count == 1 || channel_count == 2)
-            return 48 + 16 * channel_count;
-        return 0;
-    }
-
-    /// idempotency of initialize is guaranteed
-    Result InitializeDecoder(u32 sample_rate, u32 total_stream_count, u32 channel_count, u32 stereo_stream_count, u8 const* mappings) {
-        // prefer libopus, ffmpeg docs say to use libopus **if** available
-        // However, native opus can also work with swrescale:
-        // it uses planarfloat, we can resample to s16
-        AVCodec const* codec = avcodec_find_decoder_by_name("libopus");
-        bool is_libopus = codec != nullptr;
-        if (!codec) {
-            LOG_WARNING(Audio_DSP, "using ffmpeg native opus decoder");
-            codec = avcodec_find_decoder(AV_CODEC_ID_OPUS);
-        }
-        if (codec) {
-            if ((avc = avc ? avc : avcodec_alloc_context3(codec))) {
-                if (is_libopus) {
-                    const std::array<u8, 2> mapping_arr{0, 1};
-                    mappings = mappings ? mappings : mapping_arr.data();
-
-                    // freed by avcodec_context_free()
-                    u8 *edata = reinterpret_cast<u8*>(av_mallocz(OPUS_HEAD_SIZE + 2 * OPUS_MAX_CHANNELS + AV_INPUT_BUFFER_PADDING_SIZE));
-                    ASSERT(edata);
-                    edata[9] = u8(channel_count); //channels
-                    edata[10] = u8(0); //opus->pre_skip
-                    edata[16] = u8(0); //gain_db
-                    edata[18] = u8(0); //channel_map
-                    edata[OPUS_HEAD_SIZE + 0] = u8(total_stream_count);
-                    edata[OPUS_HEAD_SIZE + 1] = u8(stereo_stream_count);
-                    if (channel_count >= 1) edata[OPUS_HEAD_SIZE + 2] = mappings[0];
-                    if (channel_count >= 2) edata[OPUS_HEAD_SIZE + 3] = mappings[1];
-                    avc->extradata = edata;
-                    avc->extradata_size = OPUS_HEAD_SIZE + 2 * channel_count;
-                }
-
-
-                // FFmpeg hardcodes sample rate
-                avc->sample_rate = sample_rate;
-                avc->request_sample_fmt = AV_SAMPLE_FMT_S16;
-                av_channel_layout_default(&avc->ch_layout, channel_count);
-                if (avcodec_open2(avc, codec, nullptr) >= 0) {
-                    avpkt = av_packet_alloc();
-                    frame = av_frame_alloc();
-                    return ResultSuccess;
-                } else {
-                    avcodec_free_context(&avc);
-                }
-            }
-        }
-        return Service::Audio::ResultLibOpusInternalError;
-    }
-
-    Result Shutdown() {
-        avcodec_free_context(&avc);
-        av_frame_free(&frame);
-        av_packet_free(&avpkt);
-        return ResultSuccess;
-    }
-
-    Result ResetDecoder() {
-        if (avc) {
-            if (avcodec_is_open(avc)) avcodec_flush_buffers(avc);
-            return ResultSuccess;
-        }
-        return Service::Audio::ResultLibOpusInvalidState;
-    }
-
-    Result Decode(u32& out_sample_count, u64 output_data, u64 output_data_size, u64 input_data, u64 input_data_size) {
-        out_sample_count = 0;
-        if (avc) {
-            int rem_output_bytes = int(output_data_size);
-            while (rem_output_bytes > 0) {
-                int r = avcodec_receive_frame(avc, frame);
-                if (r == AVERROR(EAGAIN)) {
-                    av_packet_unref(avpkt);
-                    av_new_packet(avpkt, int(input_data_size));
-                    std::memcpy(avpkt->data, reinterpret_cast<const u8*>(input_data), input_data_size);
-                    r = avcodec_send_packet(avc, avpkt);
-                    ASSERT(r >= 0);
-                } else if (r == AVERROR_EOF) {
-                    break;
-                } else if (r >= 0) {
-                    auto const bsize = av_samples_get_buffer_size(nullptr, frame->ch_layout.nb_channels, frame->nb_samples, AV_SAMPLE_FMT_S16, 1);
-                    if (frame->format == AV_SAMPLE_FMT_S16) {
-                        std::memcpy(reinterpret_cast<s16*>(output_data) + (int(output_data_size) - rem_output_bytes), frame->data[0], size_t(bsize));
-                    } else {
-                        SwrContext *swr = nullptr;
-                        if (swr_alloc_set_opts2(
-                            &swr,
-                            &avc->ch_layout,
-                            AV_SAMPLE_FMT_S16,
-                            48000,
-                            &avc->ch_layout,
-                            (enum AVSampleFormat)frame->format,
-                            48000,
-                            0,
-                            nullptr
-                        ) >= 0) {
-                            if (swr_init(swr) >= 0) {
-                                AVFrame *s16_frame = av_frame_alloc();
-                                s16_frame->format = AV_SAMPLE_FMT_S16;
-                                s16_frame->sample_rate = frame->sample_rate;
-                                av_channel_layout_copy(&s16_frame->ch_layout, &frame->ch_layout);
-                                s16_frame->nb_samples = frame->nb_samples;
-                                av_frame_get_buffer(s16_frame, 0);
-                                swr_convert(swr, s16_frame->data, s16_frame->nb_samples, (const uint8_t **)frame->data, frame->nb_samples);
-                                std::memcpy(reinterpret_cast<s16*>(output_data) + (int(output_data_size) - rem_output_bytes), s16_frame->data[0], size_t(bsize));
-                                swr_free(&swr);
-                            }
-                        }
-                    }
-                    out_sample_count += frame->nb_samples;
-                    rem_output_bytes -= bsize;
-                } else {
-                    LOG_ERROR(Audio_DSP, "{}", r);
-                    break;
-                }
-            }
-            ASSERT(rem_output_bytes == 0 && "remaining bytes!");
-            return ResultSuccess;
-        }
-        return Service::Audio::ResultLibOpusInvalidState;
-    }
-
-    AVCodecContext* avc = nullptr;
-    AVPacket* avpkt = nullptr;
-    AVFrame* frame = nullptr;
-};
+bool IsValidMultiStreamStreamCounts(s32 total_stream_count, s32 stereo_stream_count) {
+    return IsValidMultiStreamChannelCount(total_stream_count) && total_stream_count > 0 &&
+           stereo_stream_count >= 0 && stereo_stream_count <= total_stream_count;
+}
 } // namespace

-OpusDecoder::OpusDecoder(Core::System& system) {
-    dsp_thread = std::jthread([this, &system](std::stop_token stop_token) {
-        Common::SetCurrentThreadName("DSP_OpusDecoder");
-        if (Receive(Direction::DSP, stop_token) != Message::Start) {
-            LOG_ERROR(Service_Audio, "DSP OpusDecoder failed to receive Start message. Opus initialization failed.");
-            return;
-        }
-        Send(Direction::Host, Message::StartOK);
-
-        // Main OpusDecoder thread, responsible for processing the incoming Opus packets.
-        ::Common::unordered_map<u64, OpusGenericDecodeObject> decode_objects;
-        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 = s32(shared_memory->host_send_data[0]);
-
-                ASSERT(IsValidChannelCount(channel_count));
-
-                shared_memory->dsp_return_data[0] = OpusGenericDecodeObject::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 >= OpusGenericDecodeObject::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, 1, channel_count, channel_count == 2 ? 1 : 0, nullptr).raw;
-                } else {
-                    OpusGenericDecodeObject obj{};
-                    shared_memory->dsp_return_data[0] = obj.InitializeDecoder(sample_rate, 1, channel_count, channel_count == 2 ? 1 : 0, nullptr).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(IsValidStreamCounts(total_stream_count, stereo_stream_count));
-
-                shared_memory->dsp_return_data[0] = OpusGenericDecodeObject::GetWorkBufferSizeMultistream(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(IsValidStreamCounts(total_stream_count, stereo_stream_count));
-                ASSERT(sample_rate >= 0);
-                ASSERT(buffer_size >= OpusGenericDecodeObject::GetWorkBufferSizeMultistream(total_stream_count, stereo_stream_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, total_stream_count, channel_count, stereo_stream_count, mappings).raw;
-                } else {
-                    OpusGenericDecodeObject obj{};
-                    shared_memory->dsp_return_data[0] = obj.InitializeDecoder(sample_rate, total_stream_count, channel_count, stereo_stream_count, mappings).raw;
-                    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 = 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::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 = 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::DecodeInterleavedForMultiStreamOK);
-                break;
-            }
-            default:
-                LOG_ERROR(Audio_DSP, "Invalid OpusDecoder command {}", msg);
-                continue;
-            }
-        }
-        for (auto e : decode_objects)
-            e.second.Shutdown();
-    });
+OpusDecoder::OpusDecoder(Core::System& system_) : system{system_} {
+    init_thread = std::jthread([this](std::stop_token stop_token) { Init(stop_token); });
 }

 OpusDecoder::~OpusDecoder() {
-    if (dsp_thread.joinable()) {
-        // Shutdown the thread
-        auto const stop_token = dsp_thread.get_stop_token();
-        Send(Direction::DSP, Message::Shutdown);
-        auto msg = Receive(Direction::Host, stop_token);
-        ASSERT_MSG(msg == Message::ShutdownOK, "Expected Opus shutdown code {}, got {}", Message::ShutdownOK, msg);
-        dsp_thread.request_stop();
-        dsp_thread.join();
+    if (!running) {
+        init_thread.request_stop();
+        return;
    }
+
+    // Shutdown the thread
+    Send(Direction::DSP, Message::Shutdown);
+    auto msg = Receive(Direction::Host);
+    ASSERT_MSG(msg == Message::ShutdownOK, "Expected Opus shutdown code {}, got {}",
+               Message::ShutdownOK, msg);
+    main_thread.request_stop();
+    main_thread.join();
+    running = false;
 }

 void OpusDecoder::Send(Direction dir, u32 message) {
@@ -397,4 +64,206 @@ u32 OpusDecoder::Receive(Direction dir, std::stop_token stop_token) {
    return mailbox.Receive(dir, stop_token);
 }

+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,
+                  "DSP OpusDecoder failed to receive Start message. Opus initialization failed.");
+        return;
+    }
+    main_thread = std::jthread([this](std::stop_token st) { Main(st); });
+    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
@@ -6,13 +6,12 @@

 #pragma once

+#include <memory>
 #include <thread>

-#include "common/container/unordered_map.h"
 #include "audio_core/adsp/apps/opus/shared_memory.h"
 #include "audio_core/adsp/mailbox.h"
 #include "common/common_types.h"
-#include "core/hle/result.h"

 namespace Core {
 class System;
@@ -49,14 +48,16 @@ enum Message : u32 {
    DecodeInterleavedForMultiStreamOK = 50,
 };

-/// @brief The AudioRenderer application running on the ADSP.
+/**
+ * The AudioRenderer application running on the ADSP.
+ */
 class OpusDecoder {
 public:
    explicit OpusDecoder(Core::System& system);
    ~OpusDecoder();

    bool IsRunning() const noexcept {
-        return dsp_thread.joinable();
+        return running;
    }

    void Send(Direction dir, u32 message);
@@ -67,12 +68,28 @@ public:
    }

 private:
+    /**
+     * 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.
+     */
+    void Main(std::stop_token stop_token);
+
+    /// Core system
+    Core::System& system;
    /// Mailbox to communicate messages with the host, drives the main thread
    Mailbox mailbox;
+    /// Init thread
+    std::jthread init_thread{};
+    /// Main thread
+    std::jthread main_thread{};
+    /// The current state
+    bool running{};
    /// 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{};
-    std::jthread dsp_thread{};
 };

 } // namespace AudioCore::ADSP::OpusDecoder
@@ -0,0 +1,113 @@
+// 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
+
+#include "audio_core/adsp/apps/opus/opus_multistream_decode_object.h"
+#include "common/assert.h"
+
+namespace AudioCore::ADSP::OpusDecoder {
+
+namespace {
+constexpr u32 OpusStreamCountMax = 255;
+
+bool IsValidStreamCounts(u32 total_stream_count, u32 stereo_stream_count) {
+    return total_stream_count > 0 && total_stream_count <= OpusStreamCountMax &&
+           static_cast<s32>(stereo_stream_count) >= 0 &&
+           stereo_stream_count <= total_stream_count;
+}
+} // namespace
+
+u32 OpusMultiStreamDecodeObject::GetWorkBufferSize(u32 total_stream_count,
+                                                   u32 stereo_stream_count) {
+    if (IsValidStreamCounts(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) {
+    auto* new_decoder = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer);
+    auto* comparison = reinterpret_cast<OpusMultiStreamDecodeObject*>(buffer2);
+
+    if (new_decoder->magic == DecodeMultiStreamObjectMagic) {
+        if (!new_decoder->initialized ||
+            (new_decoder->initialized && new_decoder->self == comparison)) {
+            new_decoder->state_valid = true;
+        }
+    } else {
+        new_decoder->initialized = false;
+        new_decoder->state_valid = true;
+    }
+    return *new_decoder;
+}
+
+s32 OpusMultiStreamDecodeObject::InitializeDecoder(u32 sample_rate, u32 total_stream_count,
+                                                   u32 channel_count, u32 stereo_stream_count,
+                                                   u8* mappings) {
+    if (!state_valid) {
+        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() {
+    if (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    if (initialized) {
+        magic = 0x0;
+        initialized = false;
+        state_valid = false;
+        self = nullptr;
+        final_range = 0;
+        decoder = nullptr;
+    }
+    return OPUS_OK;
+}
+
+s32 OpusMultiStreamDecodeObject::ResetDecoder() {
+    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 (!state_valid) {
+        return OPUS_INVALID_STATE;
+    }
+
+    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
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <opus_multistream.h>
+
+#include "common/common_types.h"
+
+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,
+                          u32 stereo_stream_count, u8* mappings);
+    s32 Shutdown();
+    s32 ResetDecoder();
+    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:
+    u32 magic;
+    bool initialized;
+    bool state_valid;
+    OpusMultiStreamDecodeObject* self;
+    u32 final_range;
+    LibOpusMSDecoder* decoder;
+};
+static_assert(std::is_trivially_constructible_v<OpusMultiStreamDecodeObject>);
+
+} // namespace AudioCore::ADSP::OpusDecoder
@@ -1,32 +0,0 @@
-// 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);
-
-}
@@ -1,11 +1,9 @@
-// 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 "common/common_funcs.h"
 #include "common/common_types.h"

 namespace AudioCore::ADSP::OpusDecoder {
@@ -12,7 +12,7 @@
 namespace AudioCore {

 AudioCore::AudioCore(Core::System& system) {
-    audio_manager.emplace();
+    audio_manager.emplace(system);
    CreateSinks();
    // Must be created after the sinks
    adsp.emplace(system, *output_sink);
@@ -15,12 +15,12 @@

 namespace AudioCore::AudioIn {

-Manager::Manager(Core::System& system_) : system{system_} {
+Manager::Manager(Core::System& system) {
    std::iota(session_ids.begin(), session_ids.end(), 0);
    num_free_sessions = MaxInSessions;
 }

-Result Manager::AcquireSessionId(size_t& session_id) {
+Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
    if (num_free_sessions == 0) {
        LOG_ERROR(Service_Audio, "All 4 AudioIn sessions are in use, cannot create any more");
        return Service::Audio::ResultOutOfSessions;
@@ -31,7 +31,7 @@ Result Manager::AcquireSessionId(size_t& session_id) {
    return ResultSuccess;
 }

-void Manager::ReleaseSessionId(const size_t session_id) {
+void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
    std::scoped_lock l{mutex};
    LOG_DEBUG(Service_Audio, "Freeing AudioIn session {}", session_id);
    session_ids[free_session_id] = session_id;
@@ -41,21 +41,20 @@ void Manager::ReleaseSessionId(const size_t session_id) {
    applet_resource_user_ids[session_id] = 0;
 }

-Result Manager::LinkToManager() {
+Result Manager::LinkToManager(Core::System& system) {
    std::scoped_lock l{mutex};
    if (!linked_to_manager) {
-        system.AudioCore().GetAudioManager().SetInManager(std::bind(&Manager::BufferReleaseAndRegister, this));
+        system.AudioCore().GetAudioManager().SetInManager(this, &Manager::BufferReleaseAndRegister);
        linked_to_manager = true;
    }

    return ResultSuccess;
 }

-void Manager::Start() {
+void Manager::Start(Core::System& system) {
    if (sessions_started) {
        return;
    }
-
    std::scoped_lock l{mutex};
    for (auto& session : sessions) {
        if (session) {
@@ -66,21 +65,19 @@ void Manager::Start() {
    sessions_started = true;
 }

-void Manager::BufferReleaseAndRegister() {
-    std::scoped_lock l{mutex};
-    for (auto& session : sessions) {
+void Manager::BufferReleaseAndRegister(void *data, Core::System& system) noexcept {
+    Manager* this_ = (Manager*)data;
+    std::scoped_lock l{this_->mutex};
+    for (auto& session : this_->sessions) {
        if (session != nullptr) {
            session->ReleaseAndRegisterBuffers();
        }
    }
 }

-u32 Manager::GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names,
-                            [[maybe_unused]] const bool filter) {
+u32 Manager::GetDeviceNames(Core::System& system, std::span<Renderer::AudioDevice::AudioDeviceName> names, [[maybe_unused]] const bool filter) {
    std::scoped_lock l{mutex};
-
-    LinkToManager();
-
+    LinkToManager(system);
    auto input_devices{Sink::GetDeviceListForSink(Settings::values.sink_id.GetValue(), true)};
    if (!input_devices.empty() && !names.empty()) {
        names[0] = Renderer::AudioDevice::AudioDeviceName("Uac");
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -30,31 +33,29 @@ public:
     * @param session_id - Output session_id.
     * @return Result code.
     */
-    Result AcquireSessionId(size_t& session_id);
+    Result AcquireSessionId(Core::System& system, size_t& session_id);

    /**
     * Release a session id on close.
     *
     * @param session_id - Session id to free.
     */
-    void ReleaseSessionId(size_t session_id);
+    void ReleaseSessionId(Core::System& system, const size_t session_id);

    /**
     * Link the audio in manager to the main audio manager.
     *
     * @return Result code.
     */
-    Result LinkToManager();
+    Result LinkToManager(Core::System& system);

    /**
     * Start the audio in manager.
     */
-    void Start();
+    void Start(Core::System& system);

-    /**
-     * Callback function, called by the audio manager when the audio in event is signalled.
-     */
-    void BufferReleaseAndRegister();
+    /// @brief Callback function, called by the audio manager when the audio in event is signalled.
+    static void BufferReleaseAndRegister(void *data, Core::System& system) noexcept;

    /**
     * Get a list of audio in device names.
@@ -64,10 +65,8 @@ public:
     *
     * @return Number of names written.
     */
-    u32 GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names, bool filter);
+    u32 GetDeviceNames(Core::System& system, std::span<Renderer::AudioDevice::AudioDeviceName> names, bool filter);

-    /// Core system
-    Core::System& system;
    /// Array of session ids
    std::array<size_t, MaxInSessions> session_ids{};
    /// Array of resource user ids
@@ -11,8 +11,8 @@

 namespace AudioCore {

-AudioManager::AudioManager() {
-    thread = std::jthread([this](std::stop_token stop_token) {
+AudioManager::AudioManager(Core::System& system) {
+    thread = std::jthread([&](std::stop_token stop_token) {
        Common::SetCurrentThreadName("AudioManager");
        std::unique_lock l{events.GetAudioEventLock()};
        events.ClearEvents();
@@ -25,7 +25,7 @@ AudioManager::AudioManager() {
                const auto event_type = Event::Type(i);
                if (events.CheckAudioEventSet(event_type) || timed_out) {
                    if (buffer_events[i]) {
-                        buffer_events[i]();
+                        buffer_events[i](buffer_data[i], system);
                    }
                }
                events.SetAudioEvent(event_type, false);
@@ -42,12 +42,13 @@ void AudioManager::Shutdown() {
    }
 }

-Result AudioManager::SetOutManager(BufferEventFunc buffer_func) {
+Result AudioManager::SetOutManager(void *data, BufferEventFunc buffer_func) {
    if (thread.joinable()) {
        std::scoped_lock l{lock};
        const auto index{events.GetManagerIndex(Event::Type::AudioOutManager)};
        if (buffer_events[index] == nullptr) {
            buffer_events[index] = std::move(buffer_func);
+            buffer_data[index] = data;
            needs_update = true;
            events.SetAudioEvent(Event::Type::AudioOutManager, true);
        }
@@ -56,12 +57,13 @@ Result AudioManager::SetOutManager(BufferEventFunc buffer_func) {
    return Service::Audio::ResultOperationFailed;
 }

-Result AudioManager::SetInManager(BufferEventFunc buffer_func) {
+Result AudioManager::SetInManager(void *data, BufferEventFunc buffer_func) {
    if (thread.joinable()) {
        std::scoped_lock l{lock};
        const auto index{events.GetManagerIndex(Event::Type::AudioInManager)};
        if (buffer_events[index] == nullptr) {
            buffer_events[index] = std::move(buffer_func);
+            buffer_data[index] = data;
            needs_update = true;
            events.SetAudioEvent(Event::Type::AudioInManager, true);
        }
@@ -16,6 +16,10 @@

 #include "audio_core/audio_event.h"

+namespace Core {
+class System;
+}
+
 union Result;

 namespace AudioCore {
@@ -34,31 +38,24 @@ namespace AudioCore {
 * This is only used by audio in and audio out.
 */
 class AudioManager {
-    using BufferEventFunc = std::function<void()>;
-
+    using BufferEventFunc = void (*)(void *data, Core::System& system) noexcept;
 public:
-    explicit AudioManager();
+    explicit AudioManager(Core::System& system);

    /**
     * Shutdown the audio manager.
     */
    void Shutdown();

-    /**
-     * Register the out manager, keeping a function to be called when the out event is signalled.
-     *
-     * @param buffer_func - Function to be called on signal.
-     * @return Result code.
-     */
-    Result SetOutManager(BufferEventFunc buffer_func);
+    /// Register the out manager, keeping a function to be called when the out event is signalled.
+    /// @param buffer_func - Function to be called on signal.
+    /// @return Result code.
+    Result SetOutManager(void *data, BufferEventFunc buffer_func);

-    /**
-     * Register the in manager, keeping a function to be called when the in event is signalled.
-     *
-     * @param buffer_func - Function to be called on signal.
-     * @return Result code.
-     */
-    Result SetInManager(BufferEventFunc buffer_func);
+    /// Register the in manager, keeping a function to be called when the in event is signalled.
+    /// @param buffer_func - Function to be called on signal.
+    /// @return Result code.
+    Result SetInManager(void *data, BufferEventFunc buffer_func);

    /**
     * Set an event to signalled, and signal the thread.
@@ -73,8 +70,9 @@ private:
    bool needs_update{};
    /// Events to be set and signalled
    Event events{};
-    /// Callbacks for each manager
+    /// Callbacks (and user data) for each manager
    std::array<BufferEventFunc, 3> buffer_events{};
+    std::array<void*, 3> buffer_data{};
    /// General lock
    std::mutex lock{};
    /// Main thread for waiting and callbacks
@@ -14,12 +14,12 @@

 namespace AudioCore::AudioOut {

-Manager::Manager(Core::System& system_) : system{system_} {
+Manager::Manager(Core::System& system) {
    std::iota(session_ids.begin(), session_ids.end(), 0);
    num_free_sessions = MaxOutSessions;
 }

-Result Manager::AcquireSessionId(size_t& session_id) {
+Result Manager::AcquireSessionId(Core::System& system, size_t& session_id) {
    if (num_free_sessions == 0) {
        LOG_ERROR(Service_Audio, "All 12 Audio Out sessions are in use, cannot create any more");
        return Service::Audio::ResultOutOfSessions;
@@ -30,7 +30,7 @@ Result Manager::AcquireSessionId(size_t& session_id) {
    return ResultSuccess;
 }

-void Manager::ReleaseSessionId(const size_t session_id) {
+void Manager::ReleaseSessionId(Core::System& system, const size_t session_id) {
    std::scoped_lock l{mutex};
    LOG_DEBUG(Service_Audio, "Freeing AudioOut session {}", session_id);
    session_ids[free_session_id] = session_id;
@@ -40,44 +40,36 @@ void Manager::ReleaseSessionId(const size_t session_id) {
    applet_resource_user_ids[session_id] = 0;
 }

-Result Manager::LinkToManager() {
+Result Manager::LinkToManager(Core::System& system) {
    std::scoped_lock l{mutex};
    if (!linked_to_manager) {
-        system.AudioCore().GetAudioManager().SetOutManager(std::bind(&Manager::BufferReleaseAndRegister, this));
+        system.AudioCore().GetAudioManager().SetOutManager(this, &Manager::BufferReleaseAndRegister);
        linked_to_manager = true;
    }

    return ResultSuccess;
 }

-void Manager::Start() {
-    if (sessions_started) {
-        return;
-    }
-
-    std::scoped_lock l{mutex};
-    for (auto& session : sessions) {
-        if (session) {
-            session->StartSession();
+void Manager::Start(Core::System& system) {
+    if (!sessions_started) {
+        std::scoped_lock l{mutex};
+        for (auto& session : sessions) {
+            if (session) {
+                session->StartSession();
+            }
        }
+        sessions_started = true;
    }
-
-    sessions_started = true;
 }

-void Manager::BufferReleaseAndRegister() {
-    std::scoped_lock l{mutex};
-    for (auto& session : sessions) {
+void Manager::BufferReleaseAndRegister(void *data, Core::System& system) noexcept {
+    Manager* this_ = (Manager*)data;
+    std::scoped_lock l{this_->mutex};
+    for (auto& session : this_->sessions) {
        if (session != nullptr) {
            session->ReleaseAndRegisterBuffers();
        }
    }
 }

-u32 Manager::GetAudioOutDeviceNames(
-    std::vector<Renderer::AudioDevice::AudioDeviceName>& names) const {
-    names.emplace_back("DeviceOut");
-    return 1;
-}
-
 } // namespace AudioCore::AudioOut
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -29,42 +32,32 @@ public:
     * @param session_id - Output session_id.
     * @return Result code.
     */
-    Result AcquireSessionId(size_t& session_id);
+    Result AcquireSessionId(Core::System& system, size_t& session_id);

    /**
     * Release a session id on close.
     *
     * @param session_id - Session id to free.
     */
-    void ReleaseSessionId(size_t session_id);
+    void ReleaseSessionId(Core::System& system, const size_t session_id);

    /**
     * Link this manager to the main audio manager.
     *
     * @return Result code.
     */
-    Result LinkToManager();
+    Result LinkToManager(Core::System& system);

    /**
     * Start the audio out manager.
     */
-    void Start();
+    void Start(Core::System& system);

    /**
     * Callback function, called by the audio manager when the audio out event is signalled.
     */
-    void BufferReleaseAndRegister();
+    static void BufferReleaseAndRegister(void* data, Core::System& system) noexcept;

-    /**
-     * Get a list of audio out device names.
-     *
-     * @param names     - Output container to write names to.
-     * @return Number of names written.
-     */
-    u32 GetAudioOutDeviceNames(std::vector<Renderer::AudioDevice::AudioDeviceName>& names) const;
-
-    /// Core system
-    Core::System& system;
    /// Array of session ids
    std::array<size_t, MaxOutSessions> session_ids{};
    /// Array of resource user ids
@@ -6,14 +6,14 @@

 #include "audio_core/audio_render_manager.h"
 #include "audio_core/common/audio_renderer_parameter.h"
+#include "audio_core/renderer/system_manager.h"
 #include "audio_core/common/feature_support.h"
 #include "core/core.h"

 namespace AudioCore::Renderer {

 Manager::Manager(Core::System& system_)
-    : system{system_}
-    , system_manager{std::make_unique<SystemManager>(system)}
+    : system_manager{std::make_unique<SystemManager>(system_)}
 {
    std::iota(session_ids.begin(), session_ids.end(), 0);
 }
@@ -62,11 +62,11 @@ u32 Manager::GetSessionCount() const {
    return session_count;
 }

-bool Manager::AddSystem(System& system_) {
+bool Manager::AddSystem(Renderer::System& system_) {
    return system_manager->Add(system_);
 }

-bool Manager::RemoveSystem(System& system_) {
+bool Manager::RemoveSystem(Renderer::System& system_) {
    return system_manager->Remove(system_);
 }

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -71,7 +74,7 @@ public:
     * @param system - The system to add.
     * @return True if the system was successfully added, otherwise false.
     */
-    bool AddSystem(System& system);
+    bool AddSystem(Renderer::System& system);

    /**
     * Remove a renderer system from the manager.
@@ -79,7 +82,7 @@ public:
     * @param system - The system to remove.
     * @return True if the system was successfully removed, otherwise false.
     */
-    bool RemoveSystem(System& system);
+    bool RemoveSystem(Renderer::System& system);

    /**
     * Free a session id when the system wants to shut down.
@@ -89,8 +92,6 @@ public:
    void ReleaseSessionId(s32 session_id);

 private:
-    /// Core system
-    Core::System& system;
    /// Session ids, -1 when in use
    std::array<s32, MaxRendererSessions> session_ids{};
    /// Number of active renderers
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -8,42 +11,43 @@
 namespace AudioCore::AudioIn {

 In::In(Core::System& system_, Manager& manager_, Kernel::KEvent* event_, size_t session_id_)
-    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}, system{system_, event,
-                                                                            session_id_} {}
+    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}
+    , audio_system{system_, event, session_id_}
+{}

-void In::Free() {
+void In::Free(Core::System& system) {
    std::scoped_lock l{parent_mutex};
-    manager.ReleaseSessionId(system.GetSessionId());
+    manager.ReleaseSessionId(system, audio_system.GetSessionId());
 }

 System& In::GetSystem() {
-    return system;
+    return audio_system;
 }

 AudioIn::State In::GetState() {
    std::scoped_lock l{parent_mutex};
-    return system.GetState();
+    return audio_system.GetState();
 }

 Result In::StartSystem() {
    std::scoped_lock l{parent_mutex};
-    return system.Start();
+    return audio_system.Start();
 }

 void In::StartSession() {
    std::scoped_lock l{parent_mutex};
-    system.StartSession();
+    audio_system.StartSession();
 }

 Result In::StopSystem() {
    std::scoped_lock l{parent_mutex};
-    return system.Stop();
+    return audio_system.Stop();
 }

 Result In::AppendBuffer(const AudioInBuffer& buffer, u64 tag) {
    std::scoped_lock l{parent_mutex};

-    if (system.AppendBuffer(buffer, tag)) {
+    if (audio_system.AppendBuffer(buffer, tag)) {
        return ResultSuccess;
    }
    return Service::Audio::ResultBufferCountReached;
@@ -51,20 +55,20 @@ Result In::AppendBuffer(const AudioInBuffer& buffer, u64 tag) {

 void In::ReleaseAndRegisterBuffers() {
    std::scoped_lock l{parent_mutex};
-    if (system.GetState() == State::Started) {
-        system.ReleaseBuffers();
-        system.RegisterBuffers();
+    if (audio_system.GetState() == State::Started) {
+        audio_system.ReleaseBuffers();
+        audio_system.RegisterBuffers();
    }
 }

 bool In::FlushAudioInBuffers() {
    std::scoped_lock l{parent_mutex};
-    return system.FlushAudioInBuffers();
+    return audio_system.FlushAudioInBuffers();
 }

 u32 In::GetReleasedBuffers(std::span<u64> tags) {
    std::scoped_lock l{parent_mutex};
-    return system.GetReleasedBuffers(tags);
+    return audio_system.GetReleasedBuffers(tags);
 }

 Kernel::KReadableEvent& In::GetBufferEvent() {
@@ -74,27 +78,27 @@ Kernel::KReadableEvent& In::GetBufferEvent() {

 f32 In::GetVolume() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetVolume();
+    return audio_system.GetVolume();
 }

 void In::SetVolume(f32 volume) {
    std::scoped_lock l{parent_mutex};
-    system.SetVolume(volume);
+    audio_system.SetVolume(volume);
 }

 bool In::ContainsAudioBuffer(u64 tag) const {
    std::scoped_lock l{parent_mutex};
-    return system.ContainsAudioBuffer(tag);
+    return audio_system.ContainsAudioBuffer(tag);
 }

 u32 In::GetBufferCount() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetBufferCount();
+    return audio_system.GetBufferCount();
 }

 u64 In::GetPlayedSampleCount() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetPlayedSampleCount();
+    return audio_system.GetPlayedSampleCount();
 }

 } // namespace AudioCore::AudioIn
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -30,7 +33,7 @@ public:
    /**
     * Free this audio in from the audio in manager.
     */
-    void Free();
+    void Free(Core::System& system);

    /**
     * Get this audio in's system.
@@ -141,7 +144,7 @@ private:
    /// Buffer event, signalled when buffers are ready to be released
    Kernel::KEvent* event;
    /// Main audio in system
-    System system;
+    System audio_system;
 };

 } // namespace AudioCore::AudioIn
@@ -10,18 +10,39 @@
 #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);
 }

@@ -91,7 +112,7 @@ Result HardwareOpus::InitializeDecodeObject(u32 sample_rate, u32 channel_count,
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }

-    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
 }

 Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
@@ -119,7 +140,7 @@ Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 chan
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }

-    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
 }

 Result HardwareOpus::ShutdownDecodeObject(void* buffer, u64 buffer_size) {
@@ -133,7 +154,7 @@ Result HardwareOpus::ShutdownDecodeObject(void* buffer, u64 buffer_size) {
               "Expected Opus shutdown code {}, got {}",
               ADSP::OpusDecoder::Message::ShutdownDecodeObjectOK, msg);

-    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
 }

 Result HardwareOpus::ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_size) {
@@ -148,7 +169,7 @@ Result HardwareOpus::ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_si
               "Expected Opus shutdown code {}, got {}",
               ADSP::OpusDecoder::Message::ShutdownMultiStreamDecodeObjectOK, msg);

-    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(shared_memory.dsp_return_data[0]));
 }

 Result HardwareOpus::DecodeInterleaved(u32& out_sample_count, void* output_data,
@@ -172,12 +193,12 @@ Result HardwareOpus::DecodeInterleaved(u32& out_sample_count, void* output_data,
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }

-    auto error_code = s32(shared_memory.dsp_return_data[0]);
-    if (error_code == ResultSuccess.raw) {
-        out_sample_count = u32(shared_memory.dsp_return_data[1]);
+    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    if (error_code == OPUS_OK) {
+        out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
        out_time_taken = 1000 * shared_memory.dsp_return_data[2];
    }
-    R_RETURN(Result(u32(error_code)));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
 }

 Result HardwareOpus::DecodeInterleavedForMultiStream(u32& out_sample_count, void* output_data,
@@ -186,27 +207,29 @@ 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[1] = u64(input_data);
+    shared_memory.host_send_data[0] = (u64)buffer;
+    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, ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStream);
+    opus_decoder.Send(ADSP::Direction::DSP,
+                      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 {}", ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK, msg);
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::DecodeInterleavedForMultiStreamOK, msg);
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }

-    auto const error_code = shared_memory.dsp_return_data[0];
-    if (error_code == ResultSuccess.raw) {
+    auto error_code{static_cast<s32>(shared_memory.dsp_return_data[0])};
+    if (error_code == OPUS_OK) {
        out_sample_count = static_cast<u32>(shared_memory.dsp_return_data[1]);
        out_time_taken = 1000 * shared_memory.dsp_return_data[2];
    }
-    R_RETURN(Result(u32(shared_memory.dsp_return_data[0])));
+    R_RETURN(ResultCodeFromLibOpusErrorCode(error_code));
 }

 Result HardwareOpus::MapMemory(void* buffer, u64 buffer_size) {
@@ -217,7 +240,8 @@ 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 {}", ADSP::OpusDecoder::Message::MapMemoryOK, msg);
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::MapMemoryOK, msg);
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }
    R_SUCCEED();
@@ -231,7 +255,8 @@ 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 {}", ADSP::OpusDecoder::Message::UnmapMemoryOK, msg);
+        LOG_ERROR(Service_Audio, "OpusDecoder returned invalid message. Expected {} got {}",
+                  ADSP::OpusDecoder::Message::UnmapMemoryOK, msg);
        R_THROW(ResultInvalidOpusDSPReturnCode);
    }
    R_SUCCEED();
@@ -8,6 +8,8 @@

 #include <array>
 #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"
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -8,42 +11,43 @@
 namespace AudioCore::AudioOut {

 Out::Out(Core::System& system_, Manager& manager_, Kernel::KEvent* event_, size_t session_id_)
-    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}, system{system_, event,
-                                                                            session_id_} {}
+    : manager{manager_}, parent_mutex{manager.mutex}, event{event_}
+    , audio_system{system_, event, session_id_}
+{}

-void Out::Free() {
+void Out::Free(Core::System& system) {
    std::scoped_lock l{parent_mutex};
-    manager.ReleaseSessionId(system.GetSessionId());
+    manager.ReleaseSessionId(system, audio_system.GetSessionId());
 }

 System& Out::GetSystem() {
-    return system;
+    return audio_system;
 }

 AudioOut::State Out::GetState() {
    std::scoped_lock l{parent_mutex};
-    return system.GetState();
+    return audio_system.GetState();
 }

 Result Out::StartSystem() {
    std::scoped_lock l{parent_mutex};
-    return system.Start();
+    return audio_system.Start();
 }

 void Out::StartSession() {
    std::scoped_lock l{parent_mutex};
-    system.StartSession();
+    audio_system.StartSession();
 }

 Result Out::StopSystem() {
    std::scoped_lock l{parent_mutex};
-    return system.Stop();
+    return audio_system.Stop();
 }

 Result Out::AppendBuffer(const AudioOutBuffer& buffer, const u64 tag) {
    std::scoped_lock l{parent_mutex};

-    if (system.AppendBuffer(buffer, tag)) {
+    if (audio_system.AppendBuffer(buffer, tag)) {
        return ResultSuccess;
    }
    return Service::Audio::ResultBufferCountReached;
@@ -51,20 +55,20 @@ Result Out::AppendBuffer(const AudioOutBuffer& buffer, const u64 tag) {

 void Out::ReleaseAndRegisterBuffers() {
    std::scoped_lock l{parent_mutex};
-    if (system.GetState() == State::Started) {
-        system.ReleaseBuffers();
-        system.RegisterBuffers();
+    if (audio_system.GetState() == State::Started) {
+        audio_system.ReleaseBuffers();
+        audio_system.RegisterBuffers();
    }
 }

 bool Out::FlushAudioOutBuffers() {
    std::scoped_lock l{parent_mutex};
-    return system.FlushAudioOutBuffers();
+    return audio_system.FlushAudioOutBuffers();
 }

 u32 Out::GetReleasedBuffers(std::span<u64> tags) {
    std::scoped_lock l{parent_mutex};
-    return system.GetReleasedBuffers(tags);
+    return audio_system.GetReleasedBuffers(tags);
 }

 Kernel::KReadableEvent& Out::GetBufferEvent() {
@@ -74,27 +78,27 @@ Kernel::KReadableEvent& Out::GetBufferEvent() {

 f32 Out::GetVolume() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetVolume();
+    return audio_system.GetVolume();
 }

 void Out::SetVolume(const f32 volume) {
    std::scoped_lock l{parent_mutex};
-    system.SetVolume(volume);
+    audio_system.SetVolume(volume);
 }

 bool Out::ContainsAudioBuffer(const u64 tag) const {
    std::scoped_lock l{parent_mutex};
-    return system.ContainsAudioBuffer(tag);
+    return audio_system.ContainsAudioBuffer(tag);
 }

 u32 Out::GetBufferCount() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetBufferCount();
+    return audio_system.GetBufferCount();
 }

 u64 Out::GetPlayedSampleCount() const {
    std::scoped_lock l{parent_mutex};
-    return system.GetPlayedSampleCount();
+    return audio_system.GetPlayedSampleCount();
 }

 } // namespace AudioCore::AudioOut
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -30,7 +33,7 @@ public:
    /**
     * Free this audio out from the audio out manager.
     */
-    void Free();
+    void Free(Core::System& system);

    /**
     * Get this audio out's system.
@@ -141,7 +144,7 @@ private:
    /// Buffer event, signalled when buffers are ready to be released
    Kernel::KEvent* event;
    /// Main audio out system
-    System system;
+    System audio_system;
 };

 } // namespace AudioCore::AudioOut
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -13,56 +16,48 @@
 namespace AudioCore::Renderer {

 Renderer::Renderer(Core::System& system_, Manager& manager_, Kernel::KEvent* rendered_event)
-    : core{system_}, manager{manager_}, system{system_, rendered_event} {}
+    : system{system_}, manager{manager_}
+    , audio_system{system_, rendered_event}
+{}

-Result Renderer::Initialize(const AudioRendererParameterInternal& params,
-                            Kernel::KTransferMemory* transfer_memory,
-                            const u64 transfer_memory_size, Kernel::KProcess* process_handle,
-                            const u64 applet_resource_user_id, const s32 session_id) {
+Result Renderer::Initialize(const AudioRendererParameterInternal& params, Kernel::KTransferMemory* transfer_memory, const u64 transfer_memory_size, Kernel::KProcess* process_handle, const u64 applet_resource_user_id, const s32 session_id) {
    if (params.execution_mode == ExecutionMode::Auto) {
-        if (!manager.AddSystem(system)) {
-            LOG_ERROR(Service_Audio,
-                      "Both Audio Render sessions are in use, cannot create any more");
+        if (!manager.AddSystem(audio_system)) {
+            LOG_ERROR(Service_Audio, "Both Audio Render sessions are in use, cannot create any more");
            return Service::Audio::ResultOutOfSessions;
        }
        system_registered = true;
    }

    initialized = true;
-    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle,
-                      applet_resource_user_id, session_id);
-
+    audio_system.Initialize(params, transfer_memory, transfer_memory_size, process_handle, applet_resource_user_id, session_id);
    return ResultSuccess;
 }

 void Renderer::Finalize() {
-    auto session_id{system.GetSessionId()};
-
-    system.Finalize();
-
+    auto const session_id{audio_system.GetSessionId()};
+    audio_system.Finalize();
    if (system_registered) {
-        manager.RemoveSystem(system);
+        manager.RemoveSystem(audio_system);
        system_registered = false;
    }
-
    manager.ReleaseSessionId(session_id);
 }

 System& Renderer::GetSystem() {
-    return system;
+    return audio_system;
 }

 void Renderer::Start() {
-    system.Start();
+    audio_system.Start();
 }

 void Renderer::Stop() {
-    system.Stop();
+    audio_system.Stop();
 }

-Result Renderer::RequestUpdate(std::span<const u8> input, std::span<u8> performance,
-                               std::span<u8> output) {
-    return system.Update(input, performance, output);
+Result Renderer::RequestUpdate(std::span<const u8> input, std::span<u8> performance, std::span<u8> output) {
+    return audio_system.Update(input, performance, output);
 }

 } // namespace AudioCore::Renderer
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -84,7 +87,7 @@ public:

 private:
    /// System core
-    Core::System& core;
+    Core::System& system;
    /// Manager this renderer is registered with
    Manager& manager;
    /// Is the audio renderer initialized?
@@ -92,7 +95,7 @@ private:
    /// Is the system registered with the manager?
    bool system_registered{};
    /// Audio render system, main driver of audio rendering
-    System system;
+    System audio_system;
 };

 } // namespace Renderer
@@ -1199,6 +1199,7 @@ 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)
@@ -73,20 +73,16 @@ Result DisplayLayerManager::CreateManagedDisplayLayer(u64* out_layer_id) {
    R_TRY(m_manager_display_service->CreateManagedLayer(
        out_layer_id, 0, display_id, Service::AppletResourceUserId{m_process->GetProcessId()}));

-    m_manager_display_service->SetLayerVisibility(m_visible, *out_layer_id);
-    (void)m_display_service->GetContainer()->SetLayerStackMask(*out_layer_id,
-                                                              this->GetLayerStackMask());
-
    if (m_applet_id != AppletId::Application) {
        (void)m_manager_display_service->SetLayerBlending(m_blending_enabled, *out_layer_id);
        if (m_applet_id == AppletId::OverlayDisplay) {
-            (void)m_manager_display_service->SetLayerZIndex(Overlay, *out_layer_id);
+            (void)m_manager_display_service->SetLayerZIndex(-1, *out_layer_id);
+            (void)m_display_service->GetContainer()->SetLayerIsOverlay(*out_layer_id, true);
        } else {
-            (void)m_manager_display_service->SetLayerZIndex(Foreground, *out_layer_id);
+            (void)m_manager_display_service->SetLayerZIndex(1, *out_layer_id);
        }
    }
-
-    m_display_service->GetContainer()->SetLayerZIndex(*out_layer_id, true);
+    (void)m_display_service->GetContainer()->SetLayerZIndex(*out_layer_id, true);
    m_managed_display_layers.emplace(*out_layer_id);

    R_SUCCEED();
@@ -126,16 +122,14 @@ Result DisplayLayerManager::IsSystemBufferSharingEnabled() {

    // Ensure the overlay layer is visible
    m_manager_display_service->SetLayerVisibility(m_visible, m_system_shared_layer_id);
-    (void)m_manager_display_service->SetLayerBlending(m_blending_enabled, m_system_shared_layer_id);
-    s32 initial_z = Foreground;
+    m_manager_display_service->SetLayerBlending(m_blending_enabled, m_system_shared_layer_id);
+    s32 initial_z = 1;
+    (void)m_display_service->GetContainer()->SetLayerZIndex(m_system_shared_layer_id, true);
    if (m_applet_id == AppletId::OverlayDisplay) {
-        initial_z = Overlay;
-        (void)m_manager_display_service->SetLayerZIndex(initial_z, m_system_shared_layer_id);
+        initial_z = -1;
        (void)m_display_service->GetContainer()->SetLayerIsOverlay(m_system_shared_layer_id, true);
    }
    m_manager_display_service->SetLayerZIndex(initial_z, m_system_shared_layer_id);
-    m_display_service->GetContainer()->SetLayerZIndex(m_system_shared_layer_id, true);
-    m_managed_display_layers.emplace(m_system_shared_layer_id);
    R_SUCCEED();
 }

@@ -50,7 +50,7 @@ IAudioIn::IAudioIn(Core::System& system_, Manager& manager, size_t session_id,
 }

 IAudioIn::~IAudioIn() {
-    impl->Free();
+    impl->Free(system);
    service_context.CloseEvent(event);
    process->Close(system.Kernel());
 }
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -65,7 +68,7 @@ Result IAudioInManager::OpenAudioInAuto(
 Result IAudioInManager::ListAudioInsAutoFiltered(
    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins, Out<u32> out_count) {
    LOG_DEBUG(Service_Audio, "called");
-    *out_count = impl->GetDeviceNames(out_audio_ins, true);
+    *out_count = impl->GetDeviceNames(system, out_audio_ins, true);
    R_SUCCEED();
 }

@@ -90,8 +93,8 @@ Result IAudioInManager::OpenAudioInProtocolSpecified(

    size_t new_session_id{};

-    R_TRY(impl->LinkToManager());
-    R_TRY(impl->AcquireSessionId(new_session_id));
+    R_TRY(impl->LinkToManager(system));
+    R_TRY(impl->AcquireSessionId(system, new_session_id));

    LOG_DEBUG(Service_Audio, "Opening new AudioIn, session_id={}, free sessions={}", new_session_id,
              impl->num_free_sessions);
@@ -46,7 +46,7 @@ IAudioOut::IAudioOut(Core::System& system_, Manager& manager, size_t session_id,
 }

 IAudioOut::~IAudioOut() {
-    impl->Free();
+    impl->Free(system);
    service_context.CloseEvent(event);
    process->Close(system.Kernel());
 }
@@ -77,8 +77,8 @@ Result IAudioOutManager::OpenAudioOutAuto(
    }

    size_t new_session_id{};
-    R_TRY(impl->LinkToManager());
-    R_TRY(impl->AcquireSessionId(new_session_id));
+    R_TRY(impl->LinkToManager(system));
+    R_TRY(impl->AcquireSessionId(system, new_session_id));

    const auto device_name = Common::StringFromBuffer(name[0].name);
    LOG_DEBUG(Service_Audio, "Opening new AudioOut, sessionid={}, free sessions={}", new_session_id,
@@ -142,7 +142,6 @@ IReadOnlyApplicationControlDataInterface::IReadOnlyApplicationControlDataInterfa
        {10, &IReadOnlyApplicationControlDataInterface::ListApplicationIcon, "ListApplicationIcon"},
        {13, &IReadOnlyApplicationControlDataInterface::ListApplicationTitle, "ListApplicationTitle"},
        {19, D<&IReadOnlyApplicationControlDataInterface::GetApplicationControlData3>, "GetApplicationControlData"},
-        {23, D<&IReadOnlyApplicationControlDataInterface::GetApplicationControlData3>, "GetApplicationControlData"},
    };
    // clang-format on

@@ -274,8 +274,8 @@ std::pair<oaknut::XReg, oaknut::XReg> InlinePageTableEmitVAddrLookup(oaknut::Cod
    code.LDR(Xscratch0, Xpagetable, Xscratch0);

    if (ctx.conf.page_table_marked_bit) {
-        code.TST(Xscratch0, 1ULL << *ctx.conf.page_table_marked_bit);
-        code.B(NE, *fallback);
+        // check for marked bit
+        code.TBNZ(Xscratch0, *ctx.conf.page_table_marked_bit, *fallback);
    }

    if (ctx.conf.page_table_pointer_mask != 0) {
@@ -414,7 +414,9 @@ 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})
Author	SHA1	Message	Date
lizzie	47aa1ac0c8	2026-09-09 16:05:11 Signed-off-by: lizzie <lizzie@eden-emu.dev>	2026-09-11 14:42:18 +00:00
lizzie	04a0a48ac4	2026-09-07 23:31:06 Signed-off-by: lizzie <lizzie@eden-emu.dev>	2026-09-11 14:42:18 +00:00
lizzie	6d152c459d	2026-09-07 23:30:42 Signed-off-by: lizzie <lizzie@eden-emu.dev>	2026-09-11 14:42:18 +00:00
lizzie	aa3ffd6514	fix span shit	2026-09-11 14:42:18 +00:00
lizzie	d9e8eecc3b	[audio_core] remove dangling Core::System& references Signed-off-by: lizzie <lizzie@eden-emu.dev>	2026-09-11 14:42:16 +00:00