diff --git a/.gitmodules b/.gitmodules index 4f4e8690bf..e73ca99e39 100644 --- a/.gitmodules +++ b/.gitmodules @@ -31,3 +31,6 @@ [submodule "opus"] path = externals/opus url = https://github.com/ogniK5377/opus.git +[submodule "soundtouch"] + path = externals/soundtouch + url = https://github.com/citra-emu/ext-soundtouch.git diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt index 3d8e10c2b5..53dcf1f1a2 100644 --- a/externals/CMakeLists.txt +++ b/externals/CMakeLists.txt @@ -50,6 +50,9 @@ add_subdirectory(open_source_archives EXCLUDE_FROM_ALL) add_library(unicorn-headers INTERFACE) target_include_directories(unicorn-headers INTERFACE ./unicorn/include) +# SoundTouch +add_subdirectory(soundtouch) + # Xbyak if (ARCHITECTURE_x86_64) # Defined before "dynarmic" above diff --git a/externals/soundtouch b/externals/soundtouch new file mode 160000 index 0000000000..060181eaf2 --- /dev/null +++ b/externals/soundtouch @@ -0,0 +1 @@ +Subproject commit 060181eaf273180d3a7e87349895bd0cb6ccbf4a diff --git a/src/audio_core/CMakeLists.txt b/src/audio_core/CMakeLists.txt index 82e4850f74..c381dbe1dc 100644 --- a/src/audio_core/CMakeLists.txt +++ b/src/audio_core/CMakeLists.txt @@ -17,6 +17,8 @@ add_library(audio_core STATIC sink_stream.h stream.cpp stream.h + time_stretch.cpp + time_stretch.h $<$:cubeb_sink.cpp cubeb_sink.h> ) @@ -24,6 +26,7 @@ add_library(audio_core STATIC create_target_directory_groups(audio_core) target_link_libraries(audio_core PUBLIC common core) +target_link_libraries(audio_core PRIVATE SoundTouch) if(ENABLE_CUBEB) target_link_libraries(audio_core PRIVATE cubeb) diff --git a/src/audio_core/cubeb_sink.cpp b/src/audio_core/cubeb_sink.cpp index 5a1177d0c9..79155a7a03 100644 --- a/src/audio_core/cubeb_sink.cpp +++ b/src/audio_core/cubeb_sink.cpp @@ -3,27 +3,23 @@ // Refer to the license.txt file included. #include +#include #include -#include - #include "audio_core/cubeb_sink.h" #include "audio_core/stream.h" +#include "audio_core/time_stretch.h" #include "common/logging/log.h" +#include "common/ring_buffer.h" +#include "core/settings.h" namespace AudioCore { -class SinkStreamImpl final : public SinkStream { +class CubebSinkStream final : public SinkStream { public: - SinkStreamImpl(cubeb* ctx, u32 sample_rate, u32 num_channels_, cubeb_devid output_device, - const std::string& name) - : ctx{ctx}, num_channels{num_channels_} { - - if (num_channels == 6) { - // 6-channel audio does not seem to work with cubeb + SDL, so we downsample this to 2 - // channel for now - is_6_channel = true; - num_channels = 2; - } + CubebSinkStream(cubeb* ctx, u32 sample_rate, u32 num_channels_, cubeb_devid output_device, + const std::string& name) + : ctx{ctx}, num_channels{std::min(num_channels_, 2u)}, time_stretch{sample_rate, + num_channels} { cubeb_stream_params params{}; params.rate = sample_rate; @@ -38,7 +34,7 @@ public: if (cubeb_stream_init(ctx, &stream_backend, name.c_str(), nullptr, nullptr, output_device, ¶ms, std::max(512u, minimum_latency), - &SinkStreamImpl::DataCallback, &SinkStreamImpl::StateCallback, + &CubebSinkStream::DataCallback, &CubebSinkStream::StateCallback, this) != CUBEB_OK) { LOG_CRITICAL(Audio_Sink, "Error initializing cubeb stream"); return; @@ -50,7 +46,7 @@ public: } } - ~SinkStreamImpl() { + ~CubebSinkStream() { if (!ctx) { return; } @@ -62,27 +58,32 @@ public: cubeb_stream_destroy(stream_backend); } - void EnqueueSamples(u32 num_channels, const std::vector& samples) override { - if (!ctx) { + void EnqueueSamples(u32 source_num_channels, const std::vector& samples) override { + if (source_num_channels > num_channels) { + // Downsample 6 channels to 2 + std::vector buf; + buf.reserve(samples.size() * num_channels / source_num_channels); + for (size_t i = 0; i < samples.size(); i += source_num_channels) { + for (size_t ch = 0; ch < num_channels; ch++) { + buf.push_back(samples[i + ch]); + } + } + queue.Push(buf); return; } - std::lock_guard lock{queue_mutex}; + queue.Push(samples); + } - queue.reserve(queue.size() + samples.size() * GetNumChannels()); + size_t SamplesInQueue(u32 num_channels) const override { + if (!ctx) + return 0; - if (is_6_channel) { - // Downsample 6 channels to 2 - const size_t sample_count_copy_size = samples.size() * 2; - queue.reserve(sample_count_copy_size); - for (size_t i = 0; i < samples.size(); i += num_channels) { - queue.push_back(samples[i]); - queue.push_back(samples[i + 1]); - } - } else { - // Copy as-is - std::copy(samples.begin(), samples.end(), std::back_inserter(queue)); - } + return queue.Size() / num_channels; + } + + void Flush() override { + should_flush = true; } u32 GetNumChannels() const { @@ -95,10 +96,11 @@ private: cubeb* ctx{}; cubeb_stream* stream_backend{}; u32 num_channels{}; - bool is_6_channel{}; - std::mutex queue_mutex; - std::vector queue; + Common::RingBuffer queue; + std::array last_frame; + std::atomic should_flush{}; + TimeStretcher time_stretch; static long DataCallback(cubeb_stream* stream, void* user_data, const void* input_buffer, void* output_buffer, long num_frames); @@ -144,38 +146,52 @@ CubebSink::~CubebSink() { SinkStream& CubebSink::AcquireSinkStream(u32 sample_rate, u32 num_channels, const std::string& name) { sink_streams.push_back( - std::make_unique(ctx, sample_rate, num_channels, output_device, name)); + std::make_unique(ctx, sample_rate, num_channels, output_device, name)); return *sink_streams.back(); } -long SinkStreamImpl::DataCallback(cubeb_stream* stream, void* user_data, const void* input_buffer, - void* output_buffer, long num_frames) { - SinkStreamImpl* impl = static_cast(user_data); +long CubebSinkStream::DataCallback(cubeb_stream* stream, void* user_data, const void* input_buffer, + void* output_buffer, long num_frames) { + CubebSinkStream* impl = static_cast(user_data); u8* buffer = reinterpret_cast(output_buffer); if (!impl) { return {}; } - std::lock_guard lock{impl->queue_mutex}; + const size_t num_channels = impl->GetNumChannels(); + const size_t samples_to_write = num_channels * num_frames; + size_t samples_written; - const size_t frames_to_write{ - std::min(impl->queue.size() / impl->GetNumChannels(), static_cast(num_frames))}; + if (Settings::values.enable_audio_stretching) { + const std::vector in{impl->queue.Pop()}; + const size_t num_in{in.size() / num_channels}; + s16* const out{reinterpret_cast(buffer)}; + const size_t out_frames = impl->time_stretch.Process(in.data(), num_in, out, num_frames); + samples_written = out_frames * num_channels; - memcpy(buffer, impl->queue.data(), frames_to_write * sizeof(s16) * impl->GetNumChannels()); - impl->queue.erase(impl->queue.begin(), - impl->queue.begin() + frames_to_write * impl->GetNumChannels()); + if (impl->should_flush) { + impl->time_stretch.Flush(); + impl->should_flush = false; + } + } else { + samples_written = impl->queue.Pop(buffer, samples_to_write); + } - if (frames_to_write < num_frames) { - // Fill the rest of the frames with silence - memset(buffer + frames_to_write * sizeof(s16) * impl->GetNumChannels(), 0, - (num_frames - frames_to_write) * sizeof(s16) * impl->GetNumChannels()); + if (samples_written >= num_channels) { + std::memcpy(&impl->last_frame[0], buffer + (samples_written - num_channels) * sizeof(s16), + num_channels * sizeof(s16)); + } + + // Fill the rest of the frames with last_frame + for (size_t i = samples_written; i < samples_to_write; i += num_channels) { + std::memcpy(buffer + i * sizeof(s16), &impl->last_frame[0], num_channels * sizeof(s16)); } return num_frames; } -void SinkStreamImpl::StateCallback(cubeb_stream* stream, void* user_data, cubeb_state state) {} +void CubebSinkStream::StateCallback(cubeb_stream* stream, void* user_data, cubeb_state state) {} std::vector ListCubebSinkDevices() { std::vector device_list; diff --git a/src/audio_core/null_sink.h b/src/audio_core/null_sink.h index f235d93e56..2ed0c83b63 100644 --- a/src/audio_core/null_sink.h +++ b/src/audio_core/null_sink.h @@ -21,6 +21,12 @@ public: private: struct NullSinkStreamImpl final : SinkStream { void EnqueueSamples(u32 /*num_channels*/, const std::vector& /*samples*/) override {} + + size_t SamplesInQueue(u32 /*num_channels*/) const override { + return 0; + } + + void Flush() override {} } null_sink_stream; }; diff --git a/src/audio_core/sink_stream.h b/src/audio_core/sink_stream.h index 41b6736d88..4309ad094c 100644 --- a/src/audio_core/sink_stream.h +++ b/src/audio_core/sink_stream.h @@ -25,6 +25,10 @@ public: * @param samples Samples in interleaved stereo PCM16 format. */ virtual void EnqueueSamples(u32 num_channels, const std::vector& samples) = 0; + + virtual std::size_t SamplesInQueue(u32 num_channels) const = 0; + + virtual void Flush() = 0; }; using SinkStreamPtr = std::unique_ptr; diff --git a/src/audio_core/stream.cpp b/src/audio_core/stream.cpp index dbae75d8c4..84dcdd98d4 100644 --- a/src/audio_core/stream.cpp +++ b/src/audio_core/stream.cpp @@ -73,6 +73,7 @@ static void VolumeAdjustSamples(std::vector& samples) { void Stream::PlayNextBuffer() { if (!IsPlaying()) { // Ensure we are in playing state before playing the next buffer + sink_stream.Flush(); return; } @@ -83,6 +84,7 @@ void Stream::PlayNextBuffer() { if (queued_buffers.empty()) { // No queued buffers - we are effectively paused + sink_stream.Flush(); return; } @@ -90,6 +92,7 @@ void Stream::PlayNextBuffer() { queued_buffers.pop(); VolumeAdjustSamples(active_buffer->Samples()); + sink_stream.EnqueueSamples(GetNumChannels(), active_buffer->GetSamples()); CoreTiming::ScheduleEventThreadsafe(GetBufferReleaseCycles(*active_buffer), release_event, {}); diff --git a/src/audio_core/time_stretch.cpp b/src/audio_core/time_stretch.cpp new file mode 100644 index 0000000000..da094c46be --- /dev/null +++ b/src/audio_core/time_stretch.cpp @@ -0,0 +1,68 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include +#include +#include +#include "audio_core/time_stretch.h" +#include "common/logging/log.h" + +namespace AudioCore { + +TimeStretcher::TimeStretcher(u32 sample_rate, u32 channel_count) + : m_sample_rate(sample_rate), m_channel_count(channel_count) { + m_sound_touch.setChannels(channel_count); + m_sound_touch.setSampleRate(sample_rate); + m_sound_touch.setPitch(1.0); + m_sound_touch.setTempo(1.0); +} + +void TimeStretcher::Clear() { + m_sound_touch.clear(); +} + +void TimeStretcher::Flush() { + m_sound_touch.flush(); +} + +size_t TimeStretcher::Process(const s16* in, size_t num_in, s16* out, size_t num_out) { + const double time_delta = static_cast(num_out) / m_sample_rate; // seconds + + // We were given actual_samples number of samples, and num_samples were requested from us. + double current_ratio = static_cast(num_in) / static_cast(num_out); + + const double max_latency = 1.0; // seconds + const double max_backlog = m_sample_rate * max_latency; + const double backlog_fullness = m_sound_touch.numSamples() / max_backlog; + if (backlog_fullness > 5.0) { + // Too many samples in backlog: Don't push anymore on + num_in = 0; + } + + // We ideally want the backlog to be about 50% full. + // This gives some headroom both ways to prevent underflow and overflow. + // We tweak current_ratio to encourage this. + constexpr double tweak_time_scale = 0.05; // seconds + const double tweak_correction = (backlog_fullness - 0.5) * (time_delta / tweak_time_scale); + current_ratio *= std::pow(1.0 + 2.0 * tweak_correction, tweak_correction < 0 ? 3.0 : 1.0); + + // This low-pass filter smoothes out variance in the calculated stretch ratio. + // The time-scale determines how responsive this filter is. + constexpr double lpf_time_scale = 2.0; // seconds + const double lpf_gain = 1.0 - std::exp(-time_delta / lpf_time_scale); + m_stretch_ratio += lpf_gain * (current_ratio - m_stretch_ratio); + + // Place a lower limit of 5% speed. When a game boots up, there will be + // many silence samples. These do not need to be timestretched. + m_stretch_ratio = std::max(m_stretch_ratio, 0.05); + m_sound_touch.setTempo(m_stretch_ratio); + + LOG_DEBUG(Audio, "{:5}/{:5} ratio:{:0.6f} backlog:{:0.6f}", num_in, num_out, m_stretch_ratio, + backlog_fullness); + + m_sound_touch.putSamples(in, num_in); + return m_sound_touch.receiveSamples(out, num_out); +} + +} // namespace AudioCore diff --git a/src/audio_core/time_stretch.h b/src/audio_core/time_stretch.h new file mode 100644 index 0000000000..7e39e695ed --- /dev/null +++ b/src/audio_core/time_stretch.h @@ -0,0 +1,36 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include +#include +#include +#include "common/common_types.h" + +namespace AudioCore { + +class TimeStretcher { +public: + TimeStretcher(u32 sample_rate, u32 channel_count); + + /// @param in Input sample buffer + /// @param num_in Number of input frames in `in` + /// @param out Output sample buffer + /// @param num_out Desired number of output frames in `out` + /// @returns Actual number of frames written to `out` + size_t Process(const s16* in, size_t num_in, s16* out, size_t num_out); + + void Clear(); + + void Flush(); + +private: + u32 m_sample_rate; + u32 m_channel_count; + soundtouch::SoundTouch m_sound_touch; + double m_stretch_ratio = 1.0; +}; + +} // namespace AudioCore diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index f41946cc6c..6a3f1fe085 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -71,6 +71,7 @@ add_library(common STATIC param_package.cpp param_package.h quaternion.h + ring_buffer.h scm_rev.cpp scm_rev.h scope_exit.h diff --git a/src/common/ring_buffer.h b/src/common/ring_buffer.h new file mode 100644 index 0000000000..30d934a389 --- /dev/null +++ b/src/common/ring_buffer.h @@ -0,0 +1,111 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include +#include +#include +#include +#include +#include +#include +#include "common/common_types.h" + +namespace Common { + +/// SPSC ring buffer +/// @tparam T Element type +/// @tparam capacity Number of slots in ring buffer +/// @tparam granularity Slot size in terms of number of elements +template +class RingBuffer { + /// A "slot" is made of `granularity` elements of `T`. + static constexpr size_t slot_size = granularity * sizeof(T); + // T must be safely memcpy-able and have a trivial default constructor. + static_assert(std::is_trivial_v); + // Ensure capacity is sensible. + static_assert(capacity < std::numeric_limits::max() / 2 / granularity); + static_assert((capacity & (capacity - 1)) == 0, "capacity must be a power of two"); + // Ensure lock-free. + static_assert(std::atomic::is_always_lock_free); + +public: + /// Pushes slots into the ring buffer + /// @param new_slots Pointer to the slots to push + /// @param slot_count Number of slots to push + /// @returns The number of slots actually pushed + size_t Push(const void* new_slots, size_t slot_count) { + const size_t write_index = m_write_index.load(); + const size_t slots_free = capacity + m_read_index.load() - write_index; + const size_t push_count = std::min(slot_count, slots_free); + + const size_t pos = write_index % capacity; + const size_t first_copy = std::min(capacity - pos, push_count); + const size_t second_copy = push_count - first_copy; + + const char* in = static_cast(new_slots); + std::memcpy(m_data.data() + pos * granularity, in, first_copy * slot_size); + in += first_copy * slot_size; + std::memcpy(m_data.data(), in, second_copy * slot_size); + + m_write_index.store(write_index + push_count); + + return push_count; + } + + size_t Push(const std::vector& input) { + return Push(input.data(), input.size()); + } + + /// Pops slots from the ring buffer + /// @param output Where to store the popped slots + /// @param max_slots Maximum number of slots to pop + /// @returns The number of slots actually popped + size_t Pop(void* output, size_t max_slots = ~size_t(0)) { + const size_t read_index = m_read_index.load(); + const size_t slots_filled = m_write_index.load() - read_index; + const size_t pop_count = std::min(slots_filled, max_slots); + + const size_t pos = read_index % capacity; + const size_t first_copy = std::min(capacity - pos, pop_count); + const size_t second_copy = pop_count - first_copy; + + char* out = static_cast(output); + std::memcpy(out, m_data.data() + pos * granularity, first_copy * slot_size); + out += first_copy * slot_size; + std::memcpy(out, m_data.data(), second_copy * slot_size); + + m_read_index.store(read_index + pop_count); + + return pop_count; + } + + std::vector Pop(size_t max_slots = ~size_t(0)) { + std::vector out(std::min(max_slots, capacity) * granularity); + const size_t count = Pop(out.data(), out.size() / granularity); + out.resize(count * granularity); + return out; + } + + /// @returns Number of slots used + size_t Size() const { + return m_write_index.load() - m_read_index.load(); + } + + /// @returns Maximum size of ring buffer + constexpr size_t Capacity() const { + return capacity; + } + +private: + // It is important to align the below variables for performance reasons: + // Having them on the same cache-line would result in false-sharing between them. + alignas(128) std::atomic m_read_index{0}; + alignas(128) std::atomic m_write_index{0}; + + std::array m_data; +}; + +} // namespace Common diff --git a/src/core/settings.h b/src/core/settings.h index 08a16ef2c8..0318d019c8 100644 --- a/src/core/settings.h +++ b/src/core/settings.h @@ -148,6 +148,7 @@ struct Values { // Audio std::string sink_id; + bool enable_audio_stretching; std::string audio_device_id; float volume; diff --git a/src/core/telemetry_session.cpp b/src/core/telemetry_session.cpp index 3730e85b82..b0df154ca1 100644 --- a/src/core/telemetry_session.cpp +++ b/src/core/telemetry_session.cpp @@ -120,6 +120,9 @@ TelemetrySession::TelemetrySession() { Telemetry::AppendOSInfo(field_collection); // Log user configuration information + AddField(Telemetry::FieldType::UserConfig, "Audio_SinkId", Settings::values.sink_id); + AddField(Telemetry::FieldType::UserConfig, "Audio_EnableAudioStretching", + Settings::values.enable_audio_stretching); AddField(Telemetry::FieldType::UserConfig, "Core_UseCpuJit", Settings::values.use_cpu_jit); AddField(Telemetry::FieldType::UserConfig, "Core_UseMultiCore", Settings::values.use_multi_core); diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt index 4d74bb3955..4e75a72ec1 100644 --- a/src/tests/CMakeLists.txt +++ b/src/tests/CMakeLists.txt @@ -1,5 +1,6 @@ add_executable(tests common/param_package.cpp + common/ring_buffer.cpp core/arm/arm_test_common.cpp core/arm/arm_test_common.h core/core_timing.cpp diff --git a/src/tests/common/ring_buffer.cpp b/src/tests/common/ring_buffer.cpp new file mode 100644 index 0000000000..f3fe57839c --- /dev/null +++ b/src/tests/common/ring_buffer.cpp @@ -0,0 +1,130 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include +#include +#include +#include +#include +#include +#include +#include "common/ring_buffer.h" + +namespace Common { + +TEST_CASE("RingBuffer: Basic Tests", "[common]") { + RingBuffer buf; + + // Pushing values into a ring buffer with space should succeed. + for (size_t i = 0; i < 4; i++) { + const char elem = static_cast(i); + const size_t count = buf.Push(&elem, 1); + REQUIRE(count == 1); + } + + REQUIRE(buf.Size() == 4); + + // Pushing values into a full ring buffer should fail. + { + const char elem = static_cast(42); + const size_t count = buf.Push(&elem, 1); + REQUIRE(count == 0); + } + + REQUIRE(buf.Size() == 4); + + // Popping multiple values from a ring buffer with values should succeed. + { + const std::vector popped = buf.Pop(2); + REQUIRE(popped.size() == 2); + REQUIRE(popped[0] == 0); + REQUIRE(popped[1] == 1); + } + + REQUIRE(buf.Size() == 2); + + // Popping a single value from a ring buffer with values should succeed. + { + const std::vector popped = buf.Pop(1); + REQUIRE(popped.size() == 1); + REQUIRE(popped[0] == 2); + } + + REQUIRE(buf.Size() == 1); + + // Pushing more values than space available should partially suceed. + { + std::vector to_push(6); + std::iota(to_push.begin(), to_push.end(), 88); + const size_t count = buf.Push(to_push); + REQUIRE(count == 3); + } + + REQUIRE(buf.Size() == 4); + + // Doing an unlimited pop should pop all values. + { + const std::vector popped = buf.Pop(); + REQUIRE(popped.size() == 4); + REQUIRE(popped[0] == 3); + REQUIRE(popped[1] == 88); + REQUIRE(popped[2] == 89); + REQUIRE(popped[3] == 90); + } + + REQUIRE(buf.Size() == 0); +} + +TEST_CASE("RingBuffer: Threaded Test", "[common]") { + RingBuffer buf; + const char seed = 42; + const size_t count = 1000000; + size_t full = 0; + size_t empty = 0; + + const auto next_value = [](std::array& value) { + value[0] += 1; + value[1] += 2; + }; + + std::thread producer{[&] { + std::array value = {seed, seed}; + size_t i = 0; + while (i < count) { + if (const size_t c = buf.Push(&value[0], 1); c > 0) { + REQUIRE(c == 1); + i++; + next_value(value); + } else { + full++; + std::this_thread::yield(); + } + } + }}; + + std::thread consumer{[&] { + std::array value = {seed, seed}; + size_t i = 0; + while (i < count) { + if (const std::vector v = buf.Pop(1); v.size() > 0) { + REQUIRE(v.size() == 2); + REQUIRE(v[0] == value[0]); + REQUIRE(v[1] == value[1]); + i++; + next_value(value); + } else { + empty++; + std::this_thread::yield(); + } + } + }}; + + producer.join(); + consumer.join(); + + REQUIRE(buf.Size() == 0); + printf("RingBuffer: Threaded Test: full: %zu, empty: %zu\n", full, empty); +} + +} // namespace Common diff --git a/src/yuzu/configuration/config.cpp b/src/yuzu/configuration/config.cpp index c43e79e78b..d229225b4b 100644 --- a/src/yuzu/configuration/config.cpp +++ b/src/yuzu/configuration/config.cpp @@ -95,6 +95,8 @@ void Config::ReadValues() { qt_config->beginGroup("Audio"); Settings::values.sink_id = qt_config->value("output_engine", "auto").toString().toStdString(); + Settings::values.enable_audio_stretching = + qt_config->value("enable_audio_stretching", true).toBool(); Settings::values.audio_device_id = qt_config->value("output_device", "auto").toString().toStdString(); Settings::values.volume = qt_config->value("volume", 1).toFloat(); @@ -230,6 +232,7 @@ void Config::SaveValues() { qt_config->beginGroup("Audio"); qt_config->setValue("output_engine", QString::fromStdString(Settings::values.sink_id)); + qt_config->setValue("enable_audio_stretching", Settings::values.enable_audio_stretching); qt_config->setValue("output_device", QString::fromStdString(Settings::values.audio_device_id)); qt_config->setValue("volume", Settings::values.volume); qt_config->endGroup(); diff --git a/src/yuzu/configuration/configure_audio.cpp b/src/yuzu/configuration/configure_audio.cpp index fbb813f6c6..6ea59f2a35 100644 --- a/src/yuzu/configuration/configure_audio.cpp +++ b/src/yuzu/configuration/configure_audio.cpp @@ -46,6 +46,8 @@ void ConfigureAudio::setConfiguration() { } ui->output_sink_combo_box->setCurrentIndex(new_sink_index); + ui->toggle_audio_stretching->setChecked(Settings::values.enable_audio_stretching); + // The device list cannot be pre-populated (nor listed) until the output sink is known. updateAudioDevices(new_sink_index); @@ -67,6 +69,7 @@ void ConfigureAudio::applyConfiguration() { Settings::values.sink_id = ui->output_sink_combo_box->itemText(ui->output_sink_combo_box->currentIndex()) .toStdString(); + Settings::values.enable_audio_stretching = ui->toggle_audio_stretching->isChecked(); Settings::values.audio_device_id = ui->audio_device_combo_box->itemText(ui->audio_device_combo_box->currentIndex()) .toStdString(); diff --git a/src/yuzu/configuration/configure_audio.ui b/src/yuzu/configuration/configure_audio.ui index ef67890dc8..a29a0e265e 100644 --- a/src/yuzu/configuration/configure_audio.ui +++ b/src/yuzu/configuration/configure_audio.ui @@ -31,6 +31,16 @@ + + + + This post-processing effect adjusts audio speed to match emulation speed and helps prevent audio stutter. This however increases audio latency. + + + Enable audio stretching + + + diff --git a/src/yuzu_cmd/config.cpp b/src/yuzu_cmd/config.cpp index f00b5a66b8..991abda2e5 100644 --- a/src/yuzu_cmd/config.cpp +++ b/src/yuzu_cmd/config.cpp @@ -108,6 +108,8 @@ void Config::ReadValues() { // Audio Settings::values.sink_id = sdl2_config->Get("Audio", "output_engine", "auto"); + Settings::values.enable_audio_stretching = + sdl2_config->GetBoolean("Audio", "enable_audio_stretching", true); Settings::values.audio_device_id = sdl2_config->Get("Audio", "output_device", "auto"); Settings::values.volume = sdl2_config->GetReal("Audio", "volume", 1); diff --git a/src/yuzu_cmd/default_ini.h b/src/yuzu_cmd/default_ini.h index 6ed9e7962e..002a4ec152 100644 --- a/src/yuzu_cmd/default_ini.h +++ b/src/yuzu_cmd/default_ini.h @@ -150,6 +150,12 @@ swap_screen = # auto (default): Auto-select, null: No audio output, cubeb: Cubeb audio engine (if available) output_engine = +# Whether or not to enable the audio-stretching post-processing effect. +# This effect adjusts audio speed to match emulation speed and helps prevent audio stutter, +# at the cost of increasing audio latency. +# 0: No, 1 (default): Yes +enable_audio_stretching = + # Which audio device to use. # auto (default): Auto-select output_device =