audio_core: Implement audren_u audio playback.

This commit is contained in:
bunnei 2018-08-04 17:45:14 -04:00
parent 1dee8ceda1
commit b46df98e93
5 changed files with 451 additions and 218 deletions

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@ -1,6 +1,8 @@
add_library(audio_core STATIC
audio_out.cpp
audio_out.h
audio_renderer.cpp
audio_renderer.h
buffer.h
cubeb_sink.cpp
cubeb_sink.h

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@ -0,0 +1,234 @@
// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "audio_core/audio_renderer.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/memory.h"
namespace AudioCore {
constexpr u32 STREAM_SAMPLE_RATE{48000};
constexpr u32 STREAM_NUM_CHANNELS{2};
AudioRenderer::AudioRenderer(AudioRendererParameter params,
Kernel::SharedPtr<Kernel::Event> buffer_event)
: worker_params{params}, buffer_event{buffer_event}, voices(params.voice_count) {
audio_core = std::make_unique<AudioCore::AudioOut>();
stream = audio_core->OpenStream(STREAM_SAMPLE_RATE, STREAM_NUM_CHANNELS, "AudioRenderer",
[=]() { buffer_event->Signal(); });
audio_core->StartStream(stream);
QueueMixedBuffer(0);
QueueMixedBuffer(1);
QueueMixedBuffer(2);
}
std::vector<u8> AudioRenderer::UpdateAudioRenderer(const std::vector<u8>& input_params) {
// Copy UpdateDataHeader struct
UpdateDataHeader config{};
std::memcpy(&config, input_params.data(), sizeof(UpdateDataHeader));
u32 memory_pool_count = worker_params.effect_count + (worker_params.voice_count * 4);
// Copy MemoryPoolInfo structs
std::vector<MemoryPoolInfo> mem_pool_info(memory_pool_count);
std::memcpy(mem_pool_info.data(),
input_params.data() + sizeof(UpdateDataHeader) + config.behavior_size,
memory_pool_count * sizeof(MemoryPoolInfo));
// Copy VoiceInfo structs
size_t offset{sizeof(UpdateDataHeader) + config.behavior_size + config.memory_pools_size +
config.voice_resource_size};
for (auto& voice : voices) {
std::memcpy(&voice.Info(), input_params.data() + offset, sizeof(VoiceInfo));
offset += sizeof(VoiceInfo);
}
// Update voices
for (auto& voice : voices) {
voice.UpdateState();
if (!voice.GetInfo().is_in_use) {
continue;
}
if (voice.GetInfo().is_new) {
voice.SetWaveIndex(voice.GetInfo().wave_buffer_head);
}
}
// Update memory pool state
std::vector<MemoryPoolEntry> memory_pool(memory_pool_count);
for (size_t index = 0; index < memory_pool.size(); ++index) {
if (mem_pool_info[index].pool_state == MemoryPoolStates::RequestAttach) {
memory_pool[index].state = MemoryPoolStates::Attached;
} else if (mem_pool_info[index].pool_state == MemoryPoolStates::RequestDetach) {
memory_pool[index].state = MemoryPoolStates::Detached;
}
}
// Release previous buffers and queue next ones for playback
ReleaseAndQueueBuffers();
// Copy output header
UpdateDataHeader response_data{worker_params};
std::vector<u8> output_params(response_data.total_size);
std::memcpy(output_params.data(), &response_data, sizeof(UpdateDataHeader));
// Copy output memory pool entries
std::memcpy(output_params.data() + sizeof(UpdateDataHeader), memory_pool.data(),
response_data.memory_pools_size);
// Copy output voice status
size_t voice_out_status_offset{sizeof(UpdateDataHeader) + response_data.memory_pools_size};
for (const auto& voice : voices) {
std::memcpy(output_params.data() + voice_out_status_offset, &voice.GetOutStatus(),
sizeof(VoiceOutStatus));
voice_out_status_offset += sizeof(VoiceOutStatus);
}
return output_params;
}
void AudioRenderer::VoiceState::SetWaveIndex(size_t index) {
wave_index = index & 3;
is_refresh_pending = true;
}
std::vector<s16> AudioRenderer::VoiceState::DequeueSamples(size_t sample_count) {
if (!IsPlaying()) {
return {};
}
if (is_refresh_pending) {
RefreshBuffer();
}
const size_t max_size{samples.size() - offset};
const size_t dequeue_offset{offset};
size_t size{sample_count * STREAM_NUM_CHANNELS};
if (size > max_size) {
size = max_size;
}
out_status.played_sample_count += size / STREAM_NUM_CHANNELS;
offset += size;
const auto& wave_buffer{info.wave_buffer[wave_index]};
if (offset == samples.size()) {
offset = 0;
if (!wave_buffer.is_looping) {
SetWaveIndex(wave_index + 1);
}
out_status.wave_buffer_consumed++;
if (wave_buffer.end_of_stream) {
info.play_state = PlayState::Paused;
}
}
return {samples.begin() + dequeue_offset, samples.begin() + dequeue_offset + size};
}
void AudioRenderer::VoiceState::UpdateState() {
if (is_in_use && !info.is_in_use) {
// No longer in use, reset state
is_refresh_pending = true;
wave_index = 0;
offset = 0;
out_status = {};
}
is_in_use = info.is_in_use;
}
void AudioRenderer::VoiceState::RefreshBuffer() {
std::vector<s16> new_samples(info.wave_buffer[wave_index].buffer_sz / sizeof(s16));
Memory::ReadBlock(info.wave_buffer[wave_index].buffer_addr, new_samples.data(),
info.wave_buffer[wave_index].buffer_sz);
switch (static_cast<Codec::PcmFormat>(info.sample_format)) {
case Codec::PcmFormat::Int16: {
// PCM16 is played as-is
break;
}
case Codec::PcmFormat::Adpcm: {
// Decode ADPCM to PCM16
Codec::ADPCM_Coeff coeffs;
Memory::ReadBlock(info.additional_params_addr, coeffs.data(), sizeof(Codec::ADPCM_Coeff));
new_samples = Codec::DecodeADPCM(reinterpret_cast<u8*>(new_samples.data()),
new_samples.size() * sizeof(s16), coeffs, adpcm_state);
break;
}
default:
LOG_CRITICAL(Audio, "Unimplemented sample_format={}", info.sample_format);
UNREACHABLE();
break;
}
switch (info.channel_count) {
case 1:
// 1 channel is upsampled to 2 channel
samples.resize(new_samples.size() * 2);
for (size_t index = 0; index < new_samples.size(); ++index) {
samples[index * 2] = new_samples[index];
samples[index * 2 + 1] = new_samples[index];
}
break;
case 2: {
// 2 channel is played as is
samples = std::move(new_samples);
break;
}
default:
LOG_CRITICAL(Audio, "Unimplemented channel_count={}", info.channel_count);
UNREACHABLE();
break;
}
is_refresh_pending = false;
}
static constexpr s16 ClampToS16(s32 value) {
return static_cast<s16>(std::clamp(value, -32768, 32767));
}
void AudioRenderer::QueueMixedBuffer(Buffer::Tag tag) {
constexpr size_t BUFFER_SIZE{512};
std::vector<s16> buffer(BUFFER_SIZE * stream->GetNumChannels());
for (auto& voice : voices) {
if (!voice.IsPlaying()) {
continue;
}
size_t offset{};
s64 samples_remaining{BUFFER_SIZE};
while (samples_remaining > 0) {
const std::vector<s16> samples{voice.DequeueSamples(samples_remaining)};
if (samples.empty()) {
break;
}
samples_remaining -= samples.size();
for (const auto& sample : samples) {
const s32 buffer_sample{buffer[offset]};
buffer[offset++] =
ClampToS16(buffer_sample + static_cast<s32>(sample * voice.GetInfo().volume));
}
}
}
audio_core->QueueBuffer(stream, tag, std::move(buffer));
}
void AudioRenderer::ReleaseAndQueueBuffers() {
const auto released_buffers{audio_core->GetTagsAndReleaseBuffers(stream, 2)};
for (const auto& tag : released_buffers) {
QueueMixedBuffer(tag);
}
}
} // namespace AudioCore

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@ -0,0 +1,206 @@
// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include <vector>
#include "audio_core/audio_out.h"
#include "audio_core/codec.h"
#include "audio_core/stream.h"
#include "common/common_types.h"
#include "common/swap.h"
#include "core/hle/kernel/event.h"
namespace AudioCore {
enum class PlayState : u8 {
Started = 0,
Stopped = 1,
Paused = 2,
};
struct AudioRendererParameter {
u32_le sample_rate;
u32_le sample_count;
u32_le unknown_8;
u32_le unknown_c;
u32_le voice_count;
u32_le sink_count;
u32_le effect_count;
u32_le unknown_1c;
u8 unknown_20;
INSERT_PADDING_BYTES(3);
u32_le splitter_count;
u32_le unknown_2c;
INSERT_PADDING_WORDS(1);
u32_le revision;
};
static_assert(sizeof(AudioRendererParameter) == 52, "AudioRendererParameter is an invalid size");
enum class MemoryPoolStates : u32 { // Should be LE
Invalid = 0x0,
Unknown = 0x1,
RequestDetach = 0x2,
Detached = 0x3,
RequestAttach = 0x4,
Attached = 0x5,
Released = 0x6,
};
struct MemoryPoolEntry {
MemoryPoolStates state;
u32_le unknown_4;
u32_le unknown_8;
u32_le unknown_c;
};
static_assert(sizeof(MemoryPoolEntry) == 0x10, "MemoryPoolEntry has wrong size");
struct MemoryPoolInfo {
u64_le pool_address;
u64_le pool_size;
MemoryPoolStates pool_state;
INSERT_PADDING_WORDS(3); // Unknown
};
static_assert(sizeof(MemoryPoolInfo) == 0x20, "MemoryPoolInfo has wrong size");
struct BiquadFilter {
u8 enable;
INSERT_PADDING_BYTES(1);
std::array<s16_le, 3> numerator;
std::array<s16_le, 2> denominator;
};
static_assert(sizeof(BiquadFilter) == 0xc, "BiquadFilter has wrong size");
struct WaveBuffer {
u64_le buffer_addr;
u64_le buffer_sz;
s32_le start_sample_offset;
s32_le end_sample_offset;
u8 is_looping;
u8 end_of_stream;
u8 sent_to_server;
INSERT_PADDING_BYTES(5);
u64 context_addr;
u64 context_sz;
INSERT_PADDING_BYTES(8);
};
static_assert(sizeof(WaveBuffer) == 0x38, "WaveBuffer has wrong size");
struct VoiceInfo {
u32_le id;
u32_le node_id;
u8 is_new;
u8 is_in_use;
PlayState play_state;
u8 sample_format;
u32_le sample_rate;
u32_le priority;
u32_le sorting_order;
u32_le channel_count;
float_le pitch;
float_le volume;
std::array<BiquadFilter, 2> biquad_filter;
u32_le wave_buffer_count;
u32_le wave_buffer_head;
INSERT_PADDING_WORDS(1);
u64_le additional_params_addr;
u64_le additional_params_sz;
u32_le mix_id;
u32_le splitter_info_id;
std::array<WaveBuffer, 4> wave_buffer;
std::array<u32_le, 6> voice_channel_resource_ids;
INSERT_PADDING_BYTES(24);
};
static_assert(sizeof(VoiceInfo) == 0x170, "VoiceInfo is wrong size");
struct VoiceOutStatus {
u64_le played_sample_count;
u32_le wave_buffer_consumed;
u32_le voice_drops_count;
};
static_assert(sizeof(VoiceOutStatus) == 0x10, "VoiceOutStatus has wrong size");
struct UpdateDataHeader {
UpdateDataHeader() {}
explicit UpdateDataHeader(const AudioRendererParameter& config) {
revision = Common::MakeMagic('R', 'E', 'V', '4'); // 5.1.0 Revision
behavior_size = 0xb0;
memory_pools_size = (config.effect_count + (config.voice_count * 4)) * 0x10;
voices_size = config.voice_count * 0x10;
voice_resource_size = 0x0;
effects_size = config.effect_count * 0x10;
mixes_size = 0x0;
sinks_size = config.sink_count * 0x20;
performance_manager_size = 0x10;
total_size = sizeof(UpdateDataHeader) + behavior_size + memory_pools_size + voices_size +
effects_size + sinks_size + performance_manager_size;
}
u32_le revision;
u32_le behavior_size;
u32_le memory_pools_size;
u32_le voices_size;
u32_le voice_resource_size;
u32_le effects_size;
u32_le mixes_size;
u32_le sinks_size;
u32_le performance_manager_size;
INSERT_PADDING_WORDS(6);
u32_le total_size;
};
static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has wrong size");
class AudioRenderer {
public:
AudioRenderer(AudioRendererParameter params, Kernel::SharedPtr<Kernel::Event> buffer_event);
std::vector<u8> UpdateAudioRenderer(const std::vector<u8>& input_params);
void QueueMixedBuffer(Buffer::Tag tag);
void ReleaseAndQueueBuffers();
private:
class VoiceState {
public:
bool IsPlaying() const {
return is_in_use && info.play_state == PlayState::Started;
}
const VoiceOutStatus& GetOutStatus() const {
return out_status;
}
const VoiceInfo& GetInfo() const {
return info;
}
VoiceInfo& Info() {
return info;
}
void SetWaveIndex(size_t index);
std::vector<s16> DequeueSamples(size_t sample_count);
void UpdateState();
void RefreshBuffer();
private:
bool is_in_use{};
bool is_refresh_pending{};
size_t wave_index{};
size_t offset{};
Codec::ADPCMState adpcm_state{};
std::vector<s16> samples;
VoiceOutStatus out_status{};
VoiceInfo info{};
};
AudioRendererParameter worker_params;
Kernel::SharedPtr<Kernel::Event> buffer_event;
std::vector<VoiceState> voices;
std::unique_ptr<AudioCore::AudioOut> audio_core;
AudioCore::StreamPtr stream;
};
} // namespace AudioCore

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@ -15,13 +15,10 @@
namespace Service::Audio {
/// TODO(bunnei): Find a proper value for the audio_ticks
constexpr u64 audio_ticks{static_cast<u64>(CoreTiming::BASE_CLOCK_RATE / 200)};
class IAudioRenderer final : public ServiceFramework<IAudioRenderer> {
public:
explicit IAudioRenderer(AudioRendererParameter audren_params)
: ServiceFramework("IAudioRenderer"), worker_params(audren_params) {
explicit IAudioRenderer(AudioCore::AudioRendererParameter audren_params)
: ServiceFramework("IAudioRenderer") {
static const FunctionInfo functions[] = {
{0, nullptr, "GetAudioRendererSampleRate"},
{1, nullptr, "GetAudioRendererSampleCount"},
@ -39,21 +36,8 @@ public:
RegisterHandlers(functions);
system_event =
Kernel::Event::Create(Kernel::ResetType::OneShot, "IAudioRenderer:SystemEvent");
// Register event callback to update the Audio Buffer
audio_event = CoreTiming::RegisterEvent(
"IAudioRenderer::UpdateAudioCallback", [this](u64 userdata, int cycles_late) {
UpdateAudioCallback();
CoreTiming::ScheduleEvent(audio_ticks - cycles_late, audio_event);
});
// Start the audio event
CoreTiming::ScheduleEvent(audio_ticks, audio_event);
voice_status_list.resize(worker_params.voice_count);
}
~IAudioRenderer() {
CoreTiming::UnscheduleEvent(audio_event, 0);
Kernel::Event::Create(Kernel::ResetType::Sticky, "IAudioRenderer:SystemEvent");
renderer = std::make_unique<AudioCore::AudioRenderer>(audren_params, system_event);
}
private:
@ -62,60 +46,9 @@ private:
}
void RequestUpdateAudioRenderer(Kernel::HLERequestContext& ctx) {
UpdateDataHeader config{};
auto buf = ctx.ReadBuffer();
std::memcpy(&config, buf.data(), sizeof(UpdateDataHeader));
u32 memory_pool_count = worker_params.effect_count + (worker_params.voice_count * 4);
std::vector<MemoryPoolInfo> mem_pool_info(memory_pool_count);
std::memcpy(mem_pool_info.data(),
buf.data() + sizeof(UpdateDataHeader) + config.behavior_size,
memory_pool_count * sizeof(MemoryPoolInfo));
std::vector<VoiceInfo> voice_info(worker_params.voice_count);
std::memcpy(voice_info.data(),
buf.data() + sizeof(UpdateDataHeader) + config.behavior_size +
config.memory_pools_size + config.voice_resource_size,
worker_params.voice_count * sizeof(VoiceInfo));
UpdateDataHeader response_data{worker_params};
ASSERT(ctx.GetWriteBufferSize() == response_data.total_size);
std::vector<u8> output(response_data.total_size);
std::memcpy(output.data(), &response_data, sizeof(UpdateDataHeader));
std::vector<MemoryPoolEntry> memory_pool(memory_pool_count);
for (unsigned i = 0; i < memory_pool.size(); i++) {
if (mem_pool_info[i].pool_state == MemoryPoolStates::RequestAttach)
memory_pool[i].state = MemoryPoolStates::Attached;
else if (mem_pool_info[i].pool_state == MemoryPoolStates::RequestDetach)
memory_pool[i].state = MemoryPoolStates::Detached;
}
std::memcpy(output.data() + sizeof(UpdateDataHeader), memory_pool.data(),
response_data.memory_pools_size);
for (unsigned i = 0; i < voice_info.size(); i++) {
if (voice_info[i].is_new) {
voice_status_list[i].played_sample_count = 0;
voice_status_list[i].wave_buffer_consumed = 0;
} else if (voice_info[i].play_state == (u8)PlayStates::Started) {
for (u32 buff_idx = 0; buff_idx < voice_info[i].wave_buffer_count; buff_idx++) {
voice_status_list[i].played_sample_count +=
(voice_info[i].wave_buffer[buff_idx].end_sample_offset -
voice_info[i].wave_buffer[buff_idx].start_sample_offset) /
2;
voice_status_list[i].wave_buffer_consumed++;
}
}
}
std::memcpy(output.data() + sizeof(UpdateDataHeader) + response_data.memory_pools_size,
voice_status_list.data(), response_data.voices_size);
ctx.WriteBuffer(output);
ctx.WriteBuffer(renderer->UpdateAudioRenderer(ctx.ReadBuffer()));
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
LOG_WARNING(Service_Audio, "(STUBBED) called");
}
@ -136,8 +69,6 @@ private:
}
void QuerySystemEvent(Kernel::HLERequestContext& ctx) {
// system_event->Signal();
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(system_event);
@ -145,131 +76,8 @@ private:
LOG_WARNING(Service_Audio, "(STUBBED) called");
}
enum class MemoryPoolStates : u32 { // Should be LE
Invalid = 0x0,
Unknown = 0x1,
RequestDetach = 0x2,
Detached = 0x3,
RequestAttach = 0x4,
Attached = 0x5,
Released = 0x6,
};
enum class PlayStates : u8 {
Started = 0,
Stopped = 1,
};
struct MemoryPoolEntry {
MemoryPoolStates state;
u32_le unknown_4;
u32_le unknown_8;
u32_le unknown_c;
};
static_assert(sizeof(MemoryPoolEntry) == 0x10, "MemoryPoolEntry has wrong size");
struct MemoryPoolInfo {
u64_le pool_address;
u64_le pool_size;
MemoryPoolStates pool_state;
INSERT_PADDING_WORDS(3); // Unknown
};
static_assert(sizeof(MemoryPoolInfo) == 0x20, "MemoryPoolInfo has wrong size");
struct UpdateDataHeader {
UpdateDataHeader() {}
explicit UpdateDataHeader(const AudioRendererParameter& config) {
revision = Common::MakeMagic('R', 'E', 'V', '4'); // 5.1.0 Revision
behavior_size = 0xb0;
memory_pools_size = (config.effect_count + (config.voice_count * 4)) * 0x10;
voices_size = config.voice_count * 0x10;
voice_resource_size = 0x0;
effects_size = config.effect_count * 0x10;
mixes_size = 0x0;
sinks_size = config.sink_count * 0x20;
performance_manager_size = 0x10;
total_size = sizeof(UpdateDataHeader) + behavior_size + memory_pools_size +
voices_size + effects_size + sinks_size + performance_manager_size;
}
u32_le revision;
u32_le behavior_size;
u32_le memory_pools_size;
u32_le voices_size;
u32_le voice_resource_size;
u32_le effects_size;
u32_le mixes_size;
u32_le sinks_size;
u32_le performance_manager_size;
INSERT_PADDING_WORDS(6);
u32_le total_size;
};
static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has wrong size");
struct BiquadFilter {
u8 enable;
INSERT_PADDING_BYTES(1);
s16_le numerator[3];
s16_le denominator[2];
};
static_assert(sizeof(BiquadFilter) == 0xc, "BiquadFilter has wrong size");
struct WaveBuffer {
u64_le buffer_addr;
u64_le buffer_sz;
s32_le start_sample_offset;
s32_le end_sample_offset;
u8 loop;
u8 end_of_stream;
u8 sent_to_server;
INSERT_PADDING_BYTES(5);
u64 context_addr;
u64 context_sz;
INSERT_PADDING_BYTES(8);
};
static_assert(sizeof(WaveBuffer) == 0x38, "WaveBuffer has wrong size");
struct VoiceInfo {
u32_le id;
u32_le node_id;
u8 is_new;
u8 is_in_use;
u8 play_state;
u8 sample_format;
u32_le sample_rate;
u32_le priority;
u32_le sorting_order;
u32_le channel_count;
float_le pitch;
float_le volume;
BiquadFilter biquad_filter[2];
u32_le wave_buffer_count;
u16_le wave_buffer_head;
INSERT_PADDING_BYTES(6);
u64_le additional_params_addr;
u64_le additional_params_sz;
u32_le mix_id;
u32_le splitter_info_id;
WaveBuffer wave_buffer[4];
u32_le voice_channel_resource_ids[6];
INSERT_PADDING_BYTES(24);
};
static_assert(sizeof(VoiceInfo) == 0x170, "VoiceInfo is wrong size");
struct VoiceOutStatus {
u64_le played_sample_count;
u32_le wave_buffer_consumed;
INSERT_PADDING_WORDS(1);
};
static_assert(sizeof(VoiceOutStatus) == 0x10, "VoiceOutStatus has wrong size");
/// This is used to trigger the audio event callback.
CoreTiming::EventType* audio_event;
Kernel::SharedPtr<Kernel::Event> system_event;
AudioRendererParameter worker_params;
std::vector<VoiceOutStatus> voice_status_list;
std::unique_ptr<AudioCore::AudioRenderer> renderer;
};
class IAudioDevice final : public ServiceFramework<IAudioDevice> {
@ -368,7 +176,7 @@ AudRenU::AudRenU() : ServiceFramework("audren:u") {
void AudRenU::OpenAudioRenderer(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<AudioRendererParameter>();
auto params = rp.PopRaw<AudioCore::AudioRendererParameter>();
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(RESULT_SUCCESS);
@ -379,7 +187,7 @@ void AudRenU::OpenAudioRenderer(Kernel::HLERequestContext& ctx) {
void AudRenU::GetAudioRendererWorkBufferSize(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<AudioRendererParameter>();
auto params = rp.PopRaw<AudioCore::AudioRendererParameter>();
u64 buffer_sz = Common::AlignUp(4 * params.unknown_8, 0x40);
buffer_sz += params.unknown_c * 1024;

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@ -4,6 +4,7 @@
#pragma once
#include "audio_core/audio_renderer.h"
#include "core/hle/service/service.h"
namespace Kernel {
@ -12,24 +13,6 @@ class HLERequestContext;
namespace Service::Audio {
struct AudioRendererParameter {
u32_le sample_rate;
u32_le sample_count;
u32_le unknown_8;
u32_le unknown_c;
u32_le voice_count;
u32_le sink_count;
u32_le effect_count;
u32_le unknown_1c;
u8 unknown_20;
INSERT_PADDING_BYTES(3);
u32_le splitter_count;
u32_le unknown_2c;
INSERT_PADDING_WORDS(1);
u32_le revision;
};
static_assert(sizeof(AudioRendererParameter) == 52, "AudioRendererParameter is an invalid size");
class AudRenU final : public ServiceFramework<AudRenU> {
public:
explicit AudRenU();