audio: rewrite IAudioOut

src/audio_core/device/audio_buffers.h

@@ -146,11 +146,11 @@ public:
                 break;
             }
 
-            tags[released++] = tag;
-
             if (released >= tags.size()) {
                 break;
             }
+
+            tags[released++] = tag;
         }
 
         return released;

src/core/CMakeLists.txt

@@ -493,6 +493,8 @@ add_library(core STATIC
     hle/service/audio/audio_in_manager.h
     hle/service/audio/audio_in.cpp
     hle/service/audio/audio_in.h
+    hle/service/audio/audio_out.cpp
+    hle/service/audio/audio_out.h
     hle/service/audio/audio.cpp
     hle/service/audio/audio.h
     hle/service/audio/audio_controller.cpp

src/core/hle/service/audio/audio_in.cpp

@@ -21,12 +21,12 @@ IAudioIn::IAudioIn(Core::System& system_, Manager& manager, size_t session_id,
         {2, C<&IAudioIn::Stop>, "Stop"},
         {3, C<&IAudioIn::AppendAudioInBuffer>, "AppendAudioInBuffer"},
         {4, C<&IAudioIn::RegisterBufferEvent>, "RegisterBufferEvent"},
-        {5, C<&IAudioIn::GetReleasedAudioInBuffer>, "GetReleasedAudioInBuffer"},
+        {5, C<&IAudioIn::GetReleasedAudioInBuffers>, "GetReleasedAudioInBuffers"},
         {6, C<&IAudioIn::ContainsAudioInBuffer>, "ContainsAudioInBuffer"},
         {7, C<&IAudioIn::AppendAudioInBuffer>, "AppendUacInBuffer"},
-        {8, C<&IAudioIn::AppendAudioInBuffer>, "AppendAudioInBufferAuto"},
+        {8, C<&IAudioIn::AppendAudioInBufferAuto>, "AppendAudioInBufferAuto"},
-        {9, C<&IAudioIn::GetReleasedAudioInBuffer>, "GetReleasedAudioInBuffersAuto"},
+        {9, C<&IAudioIn::GetReleasedAudioInBuffersAuto>, "GetReleasedAudioInBuffersAuto"},
-        {10, C<&IAudioIn::AppendAudioInBuffer>, "AppendUacInBufferAuto"},
+        {10, C<&IAudioIn::AppendAudioInBufferAuto>, "AppendUacInBufferAuto"},
         {11, C<&IAudioIn::GetAudioInBufferCount>, "GetAudioInBufferCount"},
         {12, C<&IAudioIn::SetDeviceGain>, "SetDeviceGain"},
         {13, C<&IAudioIn::GetDeviceGain>, "GetDeviceGain"},
@@ -69,6 +69,11 @@ Result IAudioIn::Stop() {
 
 Result IAudioIn::AppendAudioInBuffer(InArray<AudioInBuffer, BufferAttr_HipcMapAlias> buffer,
                                      u64 buffer_client_ptr) {
+    R_RETURN(this->AppendAudioInBufferAuto(buffer, buffer_client_ptr));
+}
+
+Result IAudioIn::AppendAudioInBufferAuto(InArray<AudioInBuffer, BufferAttr_HipcAutoSelect> buffer,
+                                         u64 buffer_client_ptr) {
     if (buffer.empty()) {
         LOG_ERROR(Service_Audio, "Input buffer is too small for an AudioInBuffer!");
         R_THROW(Audio::ResultInsufficientBuffer);
@@ -87,8 +92,17 @@ Result IAudioIn::RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_e
     R_SUCCEED();
 }
 
-Result IAudioIn::GetReleasedAudioInBuffer(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+Result IAudioIn::GetReleasedAudioInBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
                                            Out<u32> out_count) {
+    R_RETURN(this->GetReleasedAudioInBuffersAuto(out_audio_buffer, out_count));
+}
+
+Result IAudioIn::GetReleasedAudioInBuffersAuto(
+    OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer, Out<u32> out_count) {
+
+    if (!out_audio_buffer.empty()) {
+        out_audio_buffer[0] = 0;
+    }
     *out_count = impl->GetReleasedBuffers(out_audio_buffer);
 
     LOG_TRACE(Service_Audio, "called. Session {} released {} buffers",

src/core/hle/service/audio/audio_in.h

@@ -28,8 +28,13 @@ public:
     Result AppendAudioInBuffer(
         InArray<AudioCore::AudioIn::AudioInBuffer, BufferAttr_HipcMapAlias> buffer,
         u64 buffer_client_ptr);
+    Result AppendAudioInBufferAuto(
+        InArray<AudioCore::AudioIn::AudioInBuffer, BufferAttr_HipcAutoSelect> buffer,
+        u64 buffer_client_ptr);
     Result RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
-    Result GetReleasedAudioInBuffer(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+    Result GetReleasedAudioInBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+                                     Out<u32> out_count);
+    Result GetReleasedAudioInBuffersAuto(OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer,
                                          Out<u32> out_count);
     Result ContainsAudioInBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr);
     Result GetAudioInBufferCount(Out<u32> out_buffer_count);

src/core/hle/service/audio/audio_out.cpp

@@ -0,0 +1,146 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/out/audio_out.h"
+#include "audio_core/out/audio_out_system.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/service/audio/audio_out.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+using namespace AudioCore::AudioOut;
+
+IAudioOut::IAudioOut(Core::System& system_, Manager& manager, size_t session_id,
+                     const std::string& device_name, const AudioOutParameter& in_params,
+                     Kernel::KProcess* handle, u64 applet_resource_user_id)
+    : ServiceFramework{system_, "IAudioOut"}, service_context{system_, "IAudioOut"},
+      event{service_context.CreateEvent("AudioOutEvent")}, process{handle},
+      impl{std::make_shared<AudioCore::AudioOut::Out>(system_, manager, event, session_id)} {
+
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IAudioOut::GetAudioOutState>, "GetAudioOutState"},
+        {1, C<&IAudioOut::Start>, "Start"},
+        {2, C<&IAudioOut::Stop>, "Stop"},
+        {3, C<&IAudioOut::AppendAudioOutBuffer>, "AppendAudioOutBuffer"},
+        {4, C<&IAudioOut::RegisterBufferEvent>, "RegisterBufferEvent"},
+        {5, C<&IAudioOut::GetReleasedAudioOutBuffers>, "GetReleasedAudioOutBuffers"},
+        {6, C<&IAudioOut::ContainsAudioOutBuffer>, "ContainsAudioOutBuffer"},
+        {7, C<&IAudioOut::AppendAudioOutBufferAuto>, "AppendAudioOutBufferAuto"},
+        {8, C<&IAudioOut::GetReleasedAudioOutBuffersAuto>, "GetReleasedAudioOutBuffersAuto"},
+        {9, C<&IAudioOut::GetAudioOutBufferCount>, "GetAudioOutBufferCount"},
+        {10, C<&IAudioOut::GetAudioOutPlayedSampleCount>, "GetAudioOutPlayedSampleCount"},
+        {11, C<&IAudioOut::FlushAudioOutBuffers>, "FlushAudioOutBuffers"},
+        {12, C<&IAudioOut::SetAudioOutVolume>, "SetAudioOutVolume"},
+        {13, C<&IAudioOut::GetAudioOutVolume>, "GetAudioOutVolume"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    process->Open();
+}
+
+IAudioOut::~IAudioOut() {
+    impl->Free();
+    service_context.CloseEvent(event);
+    process->Close();
+}
+
+Result IAudioOut::GetAudioOutState(Out<u32> out_state) {
+    *out_state = static_cast<u32>(impl->GetState());
+    LOG_DEBUG(Service_Audio, "called. state={}", *out_state);
+    R_SUCCEED();
+}
+
+Result IAudioOut::Start() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StartSystem());
+}
+
+Result IAudioOut::Stop() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StopSystem());
+}
+
+Result IAudioOut::AppendAudioOutBuffer(
+    InArray<AudioOutBuffer, BufferAttr_HipcMapAlias> audio_out_buffer, u64 buffer_client_ptr) {
+    R_RETURN(this->AppendAudioOutBufferAuto(audio_out_buffer, buffer_client_ptr));
+}
+
+Result IAudioOut::AppendAudioOutBufferAuto(
+    InArray<AudioOutBuffer, BufferAttr_HipcAutoSelect> audio_out_buffer, u64 buffer_client_ptr) {
+    if (audio_out_buffer.empty()) {
+        LOG_ERROR(Service_Audio, "Input buffer is too small for an AudioOutBuffer!");
+        R_THROW(Audio::ResultInsufficientBuffer);
+    }
+
+    LOG_TRACE(Service_Audio, "called. Session {} Appending buffer {:08X}",
+              impl->GetSystem().GetSessionId(), buffer_client_ptr);
+    R_RETURN(impl->AppendBuffer(audio_out_buffer[0], buffer_client_ptr));
+}
+
+Result IAudioOut::RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_event = &impl->GetBufferEvent();
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetReleasedAudioOutBuffers(
+    OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer, Out<u32> out_count) {
+    R_RETURN(this->GetReleasedAudioOutBuffersAuto(out_audio_buffer, out_count));
+}
+
+Result IAudioOut::GetReleasedAudioOutBuffersAuto(
+    OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer, Out<u32> out_count) {
+
+    if (!out_audio_buffer.empty()) {
+        out_audio_buffer[0] = 0;
+    }
+    *out_count = impl->GetReleasedBuffers(out_audio_buffer);
+
+    LOG_TRACE(Service_Audio, "called. Session {} released {} buffers",
+              impl->GetSystem().GetSessionId(), *out_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::ContainsAudioOutBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr) {
+    *out_contains_buffer = impl->ContainsAudioBuffer(buffer_client_ptr);
+
+    LOG_DEBUG(Service_Audio, "called. Is buffer {:08X} registered? {}", buffer_client_ptr,
+              *out_contains_buffer);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutBufferCount(Out<u32> out_buffer_count) {
+    *out_buffer_count = impl->GetBufferCount();
+    LOG_DEBUG(Service_Audio, "called. Buffer count={}", *out_buffer_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutPlayedSampleCount(Out<u64> out_played_sample_count) {
+    *out_played_sample_count = impl->GetPlayedSampleCount();
+    LOG_DEBUG(Service_Audio, "called. Played samples={}", *out_played_sample_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::FlushAudioOutBuffers(Out<bool> out_flushed) {
+    *out_flushed = impl->FlushAudioOutBuffers();
+    LOG_DEBUG(Service_Audio, "called. Were any buffers flushed? {}", *out_flushed);
+    R_SUCCEED();
+}
+
+Result IAudioOut::SetAudioOutVolume(f32 volume) {
+    LOG_DEBUG(Service_Audio, "called. Volume={}", volume);
+    impl->SetVolume(volume);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutVolume(Out<f32> out_volume) {
+    *out_volume = impl->GetVolume();
+    LOG_DEBUG(Service_Audio, "called. Volume={}", *out_volume);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_out.h

@@ -0,0 +1,58 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/audio_out_manager.h"
+#include "audio_core/out/audio_out_system.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::Audio {
+
+class IAudioOut : public ServiceFramework<IAudioOut> {
+public:
+    explicit IAudioOut(Core::System& system_, AudioCore::AudioOut::Manager& manager,
+                       size_t session_id, const std::string& device_name,
+                       const AudioCore::AudioOut::AudioOutParameter& in_params,
+                       Kernel::KProcess* handle, u64 applet_resource_user_id);
+    ~IAudioOut() override;
+
+    std::shared_ptr<AudioCore::AudioOut::Out> GetImpl() {
+        return impl;
+    }
+
+    Result GetAudioOutState(Out<u32> out_state);
+    Result Start();
+    Result Stop();
+    Result AppendAudioOutBuffer(
+        InArray<AudioCore::AudioOut::AudioOutBuffer, BufferAttr_HipcMapAlias> audio_out_buffer,
+        u64 buffer_client_ptr);
+    Result AppendAudioOutBufferAuto(
+        InArray<AudioCore::AudioOut::AudioOutBuffer, BufferAttr_HipcAutoSelect> audio_out_buffer,
+        u64 buffer_client_ptr);
+    Result RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetReleasedAudioOutBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+                                      Out<u32> out_count);
+    Result GetReleasedAudioOutBuffersAuto(OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer,
+                                          Out<u32> out_count);
+    Result ContainsAudioOutBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr);
+    Result GetAudioOutBufferCount(Out<u32> out_buffer_count);
+    Result GetAudioOutPlayedSampleCount(Out<u64> out_played_sample_count);
+    Result FlushAudioOutBuffers(Out<bool> out_flushed);
+    Result SetAudioOutVolume(f32 volume);
+    Result GetAudioOutVolume(Out<f32> out_volume);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* event;
+    Kernel::KProcess* process;
+    std::shared_ptr<AudioCore::AudioOut::Out> impl;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audout_u.cpp

@@ -1,220 +1,15 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <array>
-#include <cstring>
-#include <vector>
-
-#include "audio_core/out/audio_out_system.h"
-#include "audio_core/renderer/audio_device.h"
-#include "common/common_funcs.h"
-#include "common/logging/log.h"
-#include "common/scratch_buffer.h"
 #include "common/string_util.h"
-#include "common/swap.h"
+#include "core/hle/service/audio/audio_out.h"
-#include "core/core.h"
-#include "core/hle/kernel/k_event.h"
 #include "core/hle/service/audio/audout_u.h"
-#include "core/hle/service/audio/errors.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/memory.h"
 
 namespace Service::Audio {
 using namespace AudioCore::AudioOut;
 
-class IAudioOut final : public ServiceFramework<IAudioOut> {
-public:
-    explicit IAudioOut(Core::System& system_, AudioCore::AudioOut::Manager& manager,
-                       size_t session_id, const std::string& device_name,
-                       const AudioOutParameter& in_params, Kernel::KProcess* handle,
-                       u64 applet_resource_user_id)
-        : ServiceFramework{system_, "IAudioOut"}, service_context{system_, "IAudioOut"},
-          event{service_context.CreateEvent("AudioOutEvent")}, process{handle},
-          impl{std::make_shared<AudioCore::AudioOut::Out>(system_, manager, event, session_id)} {
-
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IAudioOut::GetAudioOutState, "GetAudioOutState"},
-            {1, &IAudioOut::Start, "Start"},
-            {2, &IAudioOut::Stop, "Stop"},
-            {3, &IAudioOut::AppendAudioOutBuffer, "AppendAudioOutBuffer"},
-            {4, &IAudioOut::RegisterBufferEvent, "RegisterBufferEvent"},
-            {5, &IAudioOut::GetReleasedAudioOutBuffers, "GetReleasedAudioOutBuffers"},
-            {6, &IAudioOut::ContainsAudioOutBuffer, "ContainsAudioOutBuffer"},
-            {7, &IAudioOut::AppendAudioOutBuffer, "AppendAudioOutBufferAuto"},
-            {8, &IAudioOut::GetReleasedAudioOutBuffers, "GetReleasedAudioOutBuffersAuto"},
-            {9, &IAudioOut::GetAudioOutBufferCount, "GetAudioOutBufferCount"},
-            {10, &IAudioOut::GetAudioOutPlayedSampleCount, "GetAudioOutPlayedSampleCount"},
-            {11, &IAudioOut::FlushAudioOutBuffers, "FlushAudioOutBuffers"},
-            {12, &IAudioOut::SetAudioOutVolume, "SetAudioOutVolume"},
-            {13, &IAudioOut::GetAudioOutVolume, "GetAudioOutVolume"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-
-        process->Open();
-    }
-
-    ~IAudioOut() override {
-        impl->Free();
-        service_context.CloseEvent(event);
-        process->Close();
-    }
-
-    [[nodiscard]] std::shared_ptr<AudioCore::AudioOut::Out> GetImpl() {
-        return impl;
-    }
-
-private:
-    void GetAudioOutState(HLERequestContext& ctx) {
-        const auto state = static_cast<u32>(impl->GetState());
-
-        LOG_DEBUG(Service_Audio, "called. State={}", state);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(state);
-    }
-
-    void Start(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_Audio, "called");
-
-        auto result = impl->StartSystem();
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-    }
-
-    void Stop(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_Audio, "called");
-
-        auto result = impl->StopSystem();
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-    }
-
-    void AppendAudioOutBuffer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        u64 tag = rp.PopRaw<u64>();
-
-        const auto in_buffer_size{ctx.GetReadBufferSize()};
-        if (in_buffer_size < sizeof(AudioOutBuffer)) {
-            LOG_ERROR(Service_Audio, "Input buffer is too small for an AudioOutBuffer!");
-        }
-
-        const auto& in_buffer = ctx.ReadBuffer();
-        AudioOutBuffer buffer{};
-        std::memcpy(&buffer, in_buffer.data(), sizeof(AudioOutBuffer));
-
-        LOG_TRACE(Service_Audio, "called. Session {} Appending buffer {:08X}",
-                  impl->GetSystem().GetSessionId(), tag);
-
-        auto result = impl->AppendBuffer(buffer, tag);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-    }
-
-    void RegisterBufferEvent(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_Audio, "called");
-
-        auto& buffer_event = impl->GetBufferEvent();
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(buffer_event);
-    }
-
-    void GetReleasedAudioOutBuffers(HLERequestContext& ctx) {
-        const auto write_buffer_size = ctx.GetWriteBufferNumElements<u64>();
-        released_buffer.resize_destructive(write_buffer_size);
-        released_buffer[0] = 0;
-
-        const auto count = impl->GetReleasedBuffers(released_buffer);
-
-        ctx.WriteBuffer(released_buffer);
-
-        LOG_TRACE(Service_Audio, "called. Session {} released {} buffers",
-                  impl->GetSystem().GetSessionId(), count);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(count);
-    }
-
-    void ContainsAudioOutBuffer(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-
-        const u64 tag{rp.Pop<u64>()};
-        const auto buffer_queued{impl->ContainsAudioBuffer(tag)};
-
-        LOG_DEBUG(Service_Audio, "called. Is buffer {:08X} registered? {}", tag, buffer_queued);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(buffer_queued);
-    }
-
-    void GetAudioOutBufferCount(HLERequestContext& ctx) {
-        const auto buffer_count = impl->GetBufferCount();
-
-        LOG_DEBUG(Service_Audio, "called. Buffer count={}", buffer_count);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(buffer_count);
-    }
-
-    void GetAudioOutPlayedSampleCount(HLERequestContext& ctx) {
-        const auto samples_played = impl->GetPlayedSampleCount();
-
-        LOG_DEBUG(Service_Audio, "called. Played samples={}", samples_played);
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push(samples_played);
-    }
-
-    void FlushAudioOutBuffers(HLERequestContext& ctx) {
-        bool flushed{impl->FlushAudioOutBuffers()};
-
-        LOG_DEBUG(Service_Audio, "called. Were any buffers flushed? {}", flushed);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(flushed);
-    }
-
-    void SetAudioOutVolume(HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const auto volume = rp.Pop<f32>();
-
-        LOG_DEBUG(Service_Audio, "called. Volume={}", volume);
-
-        impl->SetVolume(volume);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetAudioOutVolume(HLERequestContext& ctx) {
-        const auto volume = impl->GetVolume();
-
-        LOG_DEBUG(Service_Audio, "called. Volume={}", volume);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(volume);
-    }
-
-    KernelHelpers::ServiceContext service_context;
-    Kernel::KEvent* event;
-    Kernel::KProcess* process;
-    std::shared_ptr<AudioCore::AudioOut::Out> impl;
-    Common::ScratchBuffer<u64> released_buffer;
-};
-
 AudOutU::AudOutU(Core::System& system_)
     : ServiceFramework{system_, "audout:u"}, service_context{system_, "AudOutU"},
       impl{std::make_unique<AudioCore::AudioOut::Manager>(system_)} {