Pre-test opening a stream for audio backends, fall back to null if not suitable.
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@ -8,6 +8,7 @@
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#include "audio_core/sink/cubeb_sink.h"
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#include "audio_core/sink/cubeb_sink.h"
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#include "audio_core/sink/sink_stream.h"
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#include "audio_core/sink/sink_stream.h"
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#include "common/logging/log.h"
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#include "common/logging/log.h"
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#include "common/scope_exit.h"
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#include "core/core.h"
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#include "core/core.h"
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#ifdef _WIN32
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#ifdef _WIN32
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@ -332,25 +333,38 @@ std::vector<std::string> ListCubebSinkDevices(bool capture) {
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return device_list;
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return device_list;
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}
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}
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u32 GetCubebLatency() {
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namespace {
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cubeb* ctx;
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static long TmpDataCallback(cubeb_stream*, void*, const void*, void*, long) {
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return TargetSampleCount;
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}
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static void TmpStateCallback(cubeb_stream*, void*, cubeb_state) {}
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} // namespace
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bool IsCubebSuitable() {
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#if !defined(HAVE_CUBEB)
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return false;
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#else
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cubeb* ctx{nullptr};
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#ifdef _WIN32
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#ifdef _WIN32
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auto com_init_result = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
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auto com_init_result = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
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#endif
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#endif
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// Init cubeb
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if (cubeb_init(&ctx, "yuzu Latency Getter", nullptr) != CUBEB_OK) {
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if (cubeb_init(&ctx, "yuzu Latency Getter", nullptr) != CUBEB_OK) {
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LOG_CRITICAL(Audio_Sink, "cubeb_init failed");
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LOG_ERROR(Audio_Sink, "Cubeb failed to init, it is not suitable.");
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// Return a large latency so we choose SDL instead.
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return false;
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return 10000u;
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}
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}
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SCOPE_EXIT({ cubeb_destroy(ctx); });
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#ifdef _WIN32
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#ifdef _WIN32
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if (SUCCEEDED(com_init_result)) {
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if (SUCCEEDED(com_init_result)) {
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CoUninitialize();
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CoUninitialize();
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}
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}
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#endif
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#endif
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// Test min latency
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cubeb_stream_params params{};
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cubeb_stream_params params{};
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params.rate = TargetSampleRate;
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params.rate = TargetSampleRate;
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params.channels = 2;
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params.channels = 2;
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@ -361,12 +375,32 @@ u32 GetCubebLatency() {
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u32 latency{0};
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u32 latency{0};
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const auto latency_error = cubeb_get_min_latency(ctx, ¶ms, &latency);
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const auto latency_error = cubeb_get_min_latency(ctx, ¶ms, &latency);
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if (latency_error != CUBEB_OK) {
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if (latency_error != CUBEB_OK) {
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LOG_CRITICAL(Audio_Sink, "Error getting minimum latency, error: {}", latency_error);
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LOG_ERROR(Audio_Sink, "Cubeb could not get min latency, it is not suitable.");
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latency = TargetSampleCount * 2;
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return false;
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}
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}
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latency = std::max(latency, TargetSampleCount * 2);
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latency = std::max(latency, TargetSampleCount * 2);
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cubeb_destroy(ctx);
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return latency;
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if (latency > TargetSampleCount * 3) {
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LOG_ERROR(Audio_Sink, "Cubeb latency is too high, it is not suitable.");
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return false;
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}
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// Test opening a device with standard parameters
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cubeb_devid output_device{0};
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cubeb_devid input_device{0};
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std::string name{"Yuzu test"};
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cubeb_stream* stream{nullptr};
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if (cubeb_stream_init(ctx, &stream, name.c_str(), input_device, nullptr, output_device, ¶ms,
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latency, &TmpDataCallback, &TmpStateCallback, nullptr) != CUBEB_OK) {
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LOG_CRITICAL(Audio_Sink, "Cubeb could not open a device, it is not suitable.");
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return false;
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}
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cubeb_stream_stop(stream);
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cubeb_stream_destroy(stream);
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return true;
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#endif
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}
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}
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} // namespace AudioCore::Sink
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} // namespace AudioCore::Sink
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@ -97,10 +97,11 @@ private:
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std::vector<std::string> ListCubebSinkDevices(bool capture);
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std::vector<std::string> ListCubebSinkDevices(bool capture);
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/**
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/**
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* Get the reported latency for this sink.
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* Check if this backend is suitable for use.
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* Checks if enabled, its latency, whether it opens successfully, etc.
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*
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*
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* @return Minimum latency for this sink.
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* @return True is this backend is suitable, false otherwise.
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*/
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*/
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u32 GetCubebLatency();
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bool IsCubebSuitable();
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} // namespace AudioCore::Sink
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} // namespace AudioCore::Sink
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@ -9,6 +9,7 @@
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#include "audio_core/sink/sdl2_sink.h"
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#include "audio_core/sink/sdl2_sink.h"
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#include "audio_core/sink/sink_stream.h"
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#include "audio_core/sink/sink_stream.h"
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#include "common/logging/log.h"
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#include "common/logging/log.h"
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#include "common/scope_exit.h"
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#include "core/core.h"
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#include "core/core.h"
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namespace AudioCore::Sink {
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namespace AudioCore::Sink {
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@ -84,6 +85,7 @@ public:
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}
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}
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Stop();
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Stop();
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SDL_ClearQueuedAudio(device);
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SDL_CloseAudioDevice(device);
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SDL_CloseAudioDevice(device);
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}
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}
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@ -227,8 +229,42 @@ std::vector<std::string> ListSDLSinkDevices(bool capture) {
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return device_list;
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return device_list;
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}
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}
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u32 GetSDLLatency() {
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bool IsSDLSuitable() {
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return TargetSampleCount * 2;
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#if !defined(HAVE_SDL2)
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return false;
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#else
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// Check SDL can init
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if (!SDL_WasInit(SDL_INIT_AUDIO)) {
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if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
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LOG_ERROR(Audio_Sink, "SDL failed to init, it is not suitable. Error: {}",
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SDL_GetError());
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return false;
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}
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}
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// We can set any latency frequency we want with SDL, so no need to check that.
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// Check we can open a device with standard parameters
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SDL_AudioSpec spec;
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spec.freq = TargetSampleRate;
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spec.channels = 2u;
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spec.format = AUDIO_S16SYS;
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spec.samples = TargetSampleCount * 2;
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spec.callback = nullptr;
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spec.userdata = nullptr;
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SDL_AudioSpec obtained;
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auto device = SDL_OpenAudioDevice(nullptr, false, &spec, &obtained, false);
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if (device == 0) {
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LOG_ERROR(Audio_Sink, "SDL failed to open a device, it is not suitable. Error: {}",
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SDL_GetError());
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return false;
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}
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SDL_CloseAudioDevice(device);
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return true;
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#endif
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}
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}
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} // namespace AudioCore::Sink
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} // namespace AudioCore::Sink
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@ -88,10 +88,11 @@ private:
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std::vector<std::string> ListSDLSinkDevices(bool capture);
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std::vector<std::string> ListSDLSinkDevices(bool capture);
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/**
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/**
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* Get the reported latency for this sink.
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* Check if this backend is suitable for use.
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* Checks if enabled, its latency, whether it opens successfully, etc.
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*
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*
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* @return Minimum latency for this sink.
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* @return True is this backend is suitable, false otherwise.
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*/
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*/
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u32 GetSDLLatency();
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bool IsSDLSuitable();
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} // namespace AudioCore::Sink
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} // namespace AudioCore::Sink
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@ -22,7 +22,7 @@ namespace {
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struct SinkDetails {
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struct SinkDetails {
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using FactoryFn = std::unique_ptr<Sink> (*)(std::string_view);
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using FactoryFn = std::unique_ptr<Sink> (*)(std::string_view);
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using ListDevicesFn = std::vector<std::string> (*)(bool);
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using ListDevicesFn = std::vector<std::string> (*)(bool);
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using LatencyFn = u32 (*)();
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using SuitableFn = bool (*)();
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/// Name for this sink.
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/// Name for this sink.
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Settings::AudioEngine id;
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Settings::AudioEngine id;
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@ -30,8 +30,8 @@ struct SinkDetails {
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FactoryFn factory;
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FactoryFn factory;
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/// A method to call to list available devices.
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/// A method to call to list available devices.
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ListDevicesFn list_devices;
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ListDevicesFn list_devices;
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/// Method to get the latency of this backend.
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/// Check whether this backend is suitable to be used.
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LatencyFn latency;
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SuitableFn is_suitable;
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};
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};
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// sink_details is ordered in terms of desirability, with the best choice at the top.
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// sink_details is ordered in terms of desirability, with the best choice at the top.
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@ -43,7 +43,7 @@ constexpr SinkDetails sink_details[] = {
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return std::make_unique<CubebSink>(device_id);
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return std::make_unique<CubebSink>(device_id);
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},
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},
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&ListCubebSinkDevices,
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&ListCubebSinkDevices,
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&GetCubebLatency,
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&IsCubebSuitable,
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},
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},
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#endif
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#endif
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#ifdef HAVE_SDL2
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#ifdef HAVE_SDL2
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@ -53,14 +53,17 @@ constexpr SinkDetails sink_details[] = {
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return std::make_unique<SDLSink>(device_id);
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return std::make_unique<SDLSink>(device_id);
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},
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},
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&ListSDLSinkDevices,
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&ListSDLSinkDevices,
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&GetSDLLatency,
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&IsSDLSuitable,
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},
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},
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#endif
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#endif
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SinkDetails{Settings::AudioEngine::Null,
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SinkDetails{
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Settings::AudioEngine::Null,
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[](std::string_view device_id) -> std::unique_ptr<Sink> {
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[](std::string_view device_id) -> std::unique_ptr<Sink> {
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return std::make_unique<NullSink>(device_id);
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return std::make_unique<NullSink>(device_id);
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},
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},
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[](bool capture) { return std::vector<std::string>{"null"}; }, []() { return 0u; }},
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[](bool capture) { return std::vector<std::string>{"null"}; },
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[]() { return true; },
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},
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};
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};
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const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
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const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
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@ -72,18 +75,22 @@ const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
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auto iter = find_backend(sink_id);
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auto iter = find_backend(sink_id);
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if (sink_id == Settings::AudioEngine::Auto) {
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if (sink_id == Settings::AudioEngine::Auto) {
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// Auto-select a backend. Prefer CubeB, but it may report a large minimum latency which
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// Auto-select a backend. Use the sink details ordering, preferring cubeb first, checking
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// causes audio issues, in that case go with SDL.
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// that the backend is available and suitable to use.
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#if defined(HAVE_CUBEB) && defined(HAVE_SDL2)
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for (auto& details : sink_details) {
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iter = find_backend(Settings::AudioEngine::Cubeb);
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if (details.is_suitable()) {
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if (iter->latency() > TargetSampleCount * 3) {
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iter = &details;
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iter = find_backend(Settings::AudioEngine::Sdl2);
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break;
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}
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}
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#else
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}
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iter = std::begin(sink_details);
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LOG_ERROR(Service_Audio, "Auto-selecting the {} backend",
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#endif
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LOG_INFO(Service_Audio, "Auto-selecting the {} backend",
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Settings::CanonicalizeEnum(iter->id));
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Settings::CanonicalizeEnum(iter->id));
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} else {
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if (iter != std::end(sink_details) && !iter->is_suitable()) {
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LOG_ERROR(Service_Audio, "Selected backend {} is not suitable, falling back to null",
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Settings::CanonicalizeEnum(iter->id));
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iter = find_backend(Settings::AudioEngine::Null);
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}
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}
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}
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if (iter == std::end(sink_details)) {
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if (iter == std::end(sink_details)) {
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