Pre-test opening a stream for audio backends, fall back to null if not suitable.

This commit is contained in:
Kelebek1 2023-08-23 07:14:40 +01:00
parent bc4ad5e62d
commit 39c8ddcda2
5 changed files with 117 additions and 38 deletions

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@ -8,6 +8,7 @@
#include "audio_core/sink/cubeb_sink.h"
#include "audio_core/sink/sink_stream.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "core/core.h"
#ifdef _WIN32
@ -332,25 +333,38 @@ std::vector<std::string> ListCubebSinkDevices(bool capture) {
return device_list;
}
u32 GetCubebLatency() {
cubeb* ctx;
namespace {
static long TmpDataCallback(cubeb_stream*, void*, const void*, void*, long) {
return TargetSampleCount;
}
static void TmpStateCallback(cubeb_stream*, void*, cubeb_state) {}
} // namespace
bool IsCubebSuitable() {
#if !defined(HAVE_CUBEB)
return false;
#else
cubeb* ctx{nullptr};
#ifdef _WIN32
auto com_init_result = CoInitializeEx(nullptr, COINIT_MULTITHREADED);
#endif
// Init cubeb
if (cubeb_init(&ctx, "yuzu Latency Getter", nullptr) != CUBEB_OK) {
LOG_CRITICAL(Audio_Sink, "cubeb_init failed");
// Return a large latency so we choose SDL instead.
return 10000u;
LOG_ERROR(Audio_Sink, "Cubeb failed to init, it is not suitable.");
return false;
}
SCOPE_EXIT({ cubeb_destroy(ctx); });
#ifdef _WIN32
if (SUCCEEDED(com_init_result)) {
CoUninitialize();
}
#endif
// Test min latency
cubeb_stream_params params{};
params.rate = TargetSampleRate;
params.channels = 2;
@ -361,12 +375,32 @@ u32 GetCubebLatency() {
u32 latency{0};
const auto latency_error = cubeb_get_min_latency(ctx, &params, &latency);
if (latency_error != CUBEB_OK) {
LOG_CRITICAL(Audio_Sink, "Error getting minimum latency, error: {}", latency_error);
latency = TargetSampleCount * 2;
LOG_ERROR(Audio_Sink, "Cubeb could not get min latency, it is not suitable.");
return false;
}
latency = std::max(latency, TargetSampleCount * 2);
cubeb_destroy(ctx);
return latency;
if (latency > TargetSampleCount * 3) {
LOG_ERROR(Audio_Sink, "Cubeb latency is too high, it is not suitable.");
return false;
}
// Test opening a device with standard parameters
cubeb_devid output_device{0};
cubeb_devid input_device{0};
std::string name{"Yuzu test"};
cubeb_stream* stream{nullptr};
if (cubeb_stream_init(ctx, &stream, name.c_str(), input_device, nullptr, output_device, &params,
latency, &TmpDataCallback, &TmpStateCallback, nullptr) != CUBEB_OK) {
LOG_CRITICAL(Audio_Sink, "Cubeb could not open a device, it is not suitable.");
return false;
}
cubeb_stream_stop(stream);
cubeb_stream_destroy(stream);
return true;
#endif
}
} // namespace AudioCore::Sink

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@ -97,10 +97,11 @@ private:
std::vector<std::string> ListCubebSinkDevices(bool capture);
/**
* Get the reported latency for this sink.
* Check if this backend is suitable for use.
* Checks if enabled, its latency, whether it opens successfully, etc.
*
* @return Minimum latency for this sink.
* @return True is this backend is suitable, false otherwise.
*/
u32 GetCubebLatency();
bool IsCubebSuitable();
} // namespace AudioCore::Sink

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@ -9,6 +9,7 @@
#include "audio_core/sink/sdl2_sink.h"
#include "audio_core/sink/sink_stream.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "core/core.h"
namespace AudioCore::Sink {
@ -84,6 +85,7 @@ public:
}
Stop();
SDL_ClearQueuedAudio(device);
SDL_CloseAudioDevice(device);
}
@ -227,8 +229,42 @@ std::vector<std::string> ListSDLSinkDevices(bool capture) {
return device_list;
}
u32 GetSDLLatency() {
return TargetSampleCount * 2;
bool IsSDLSuitable() {
#if !defined(HAVE_SDL2)
return false;
#else
// Check SDL can init
if (!SDL_WasInit(SDL_INIT_AUDIO)) {
if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
LOG_ERROR(Audio_Sink, "SDL failed to init, it is not suitable. Error: {}",
SDL_GetError());
return false;
}
}
// We can set any latency frequency we want with SDL, so no need to check that.
// Check we can open a device with standard parameters
SDL_AudioSpec spec;
spec.freq = TargetSampleRate;
spec.channels = 2u;
spec.format = AUDIO_S16SYS;
spec.samples = TargetSampleCount * 2;
spec.callback = nullptr;
spec.userdata = nullptr;
SDL_AudioSpec obtained;
auto device = SDL_OpenAudioDevice(nullptr, false, &spec, &obtained, false);
if (device == 0) {
LOG_ERROR(Audio_Sink, "SDL failed to open a device, it is not suitable. Error: {}",
SDL_GetError());
return false;
}
SDL_CloseAudioDevice(device);
return true;
#endif
}
} // namespace AudioCore::Sink

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@ -88,10 +88,11 @@ private:
std::vector<std::string> ListSDLSinkDevices(bool capture);
/**
* Get the reported latency for this sink.
* Check if this backend is suitable for use.
* Checks if enabled, its latency, whether it opens successfully, etc.
*
* @return Minimum latency for this sink.
* @return True is this backend is suitable, false otherwise.
*/
u32 GetSDLLatency();
bool IsSDLSuitable();
} // namespace AudioCore::Sink

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@ -22,7 +22,7 @@ namespace {
struct SinkDetails {
using FactoryFn = std::unique_ptr<Sink> (*)(std::string_view);
using ListDevicesFn = std::vector<std::string> (*)(bool);
using LatencyFn = u32 (*)();
using SuitableFn = bool (*)();
/// Name for this sink.
Settings::AudioEngine id;
@ -30,8 +30,8 @@ struct SinkDetails {
FactoryFn factory;
/// A method to call to list available devices.
ListDevicesFn list_devices;
/// Method to get the latency of this backend.
LatencyFn latency;
/// Check whether this backend is suitable to be used.
SuitableFn is_suitable;
};
// sink_details is ordered in terms of desirability, with the best choice at the top.
@ -43,7 +43,7 @@ constexpr SinkDetails sink_details[] = {
return std::make_unique<CubebSink>(device_id);
},
&ListCubebSinkDevices,
&GetCubebLatency,
&IsCubebSuitable,
},
#endif
#ifdef HAVE_SDL2
@ -53,14 +53,17 @@ constexpr SinkDetails sink_details[] = {
return std::make_unique<SDLSink>(device_id);
},
&ListSDLSinkDevices,
&GetSDLLatency,
&IsSDLSuitable,
},
#endif
SinkDetails{Settings::AudioEngine::Null,
SinkDetails{
Settings::AudioEngine::Null,
[](std::string_view device_id) -> std::unique_ptr<Sink> {
return std::make_unique<NullSink>(device_id);
},
[](bool capture) { return std::vector<std::string>{"null"}; }, []() { return 0u; }},
[](bool capture) { return std::vector<std::string>{"null"}; },
[]() { return true; },
},
};
const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
@ -72,18 +75,22 @@ const SinkDetails& GetOutputSinkDetails(Settings::AudioEngine sink_id) {
auto iter = find_backend(sink_id);
if (sink_id == Settings::AudioEngine::Auto) {
// Auto-select a backend. Prefer CubeB, but it may report a large minimum latency which
// causes audio issues, in that case go with SDL.
#if defined(HAVE_CUBEB) && defined(HAVE_SDL2)
iter = find_backend(Settings::AudioEngine::Cubeb);
if (iter->latency() > TargetSampleCount * 3) {
iter = find_backend(Settings::AudioEngine::Sdl2);
// Auto-select a backend. Use the sink details ordering, preferring cubeb first, checking
// that the backend is available and suitable to use.
for (auto& details : sink_details) {
if (details.is_suitable()) {
iter = &details;
break;
}
#else
iter = std::begin(sink_details);
#endif
LOG_INFO(Service_Audio, "Auto-selecting the {} backend",
}
LOG_ERROR(Service_Audio, "Auto-selecting the {} backend",
Settings::CanonicalizeEnum(iter->id));
} else {
if (iter != std::end(sink_details) && !iter->is_suitable()) {
LOG_ERROR(Service_Audio, "Selected backend {} is not suitable, falling back to null",
Settings::CanonicalizeEnum(iter->id));
iter = find_backend(Settings::AudioEngine::Null);
}
}
if (iter == std::end(sink_details)) {