Project Andio

src/audio_core/sink/sink_details.cpp

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+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm>
+#include <memory>
+#include <string>
+#include <vector>
+#include "audio_core/sink/null_sink.h"
+#include "audio_core/sink/sink_details.h"
+#ifdef HAVE_CUBEB
+#include "audio_core/sink/cubeb_sink.h"
+#endif
+#ifdef HAVE_SDL2
+#include "audio_core/sink/sdl2_sink.h"
+#endif
+#include "common/logging/log.h"
+
+namespace AudioCore::Sink {
+namespace {
+struct SinkDetails {
+    using FactoryFn = std::unique_ptr<Sink> (*)(std::string_view);
+    using ListDevicesFn = std::vector<std::string> (*)(bool);
+
+    /// Name for this sink.
+    const char* id;
+    /// A method to call to construct an instance of this type of sink.
+    FactoryFn factory;
+    /// A method to call to list available devices.
+    ListDevicesFn list_devices;
+};
+
+// sink_details is ordered in terms of desirability, with the best choice at the top.
+constexpr SinkDetails sink_details[] = {
+#ifdef HAVE_CUBEB
+    SinkDetails{"cubeb",
+                [](std::string_view device_id) -> std::unique_ptr<Sink> {
+                    return std::make_unique<CubebSink>(device_id);
+                },
+                &ListCubebSinkDevices},
+#endif
+#ifdef HAVE_SDL2
+    SinkDetails{"sdl2",
+                [](std::string_view device_id) -> std::unique_ptr<Sink> {
+                    return std::make_unique<SDLSink>(device_id);
+                },
+                &ListSDLSinkDevices},
+#endif
+    SinkDetails{"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"}; }},
+};
+
+const SinkDetails& GetOutputSinkDetails(std::string_view sink_id) {
+    auto iter =
+        std::find_if(std::begin(sink_details), std::end(sink_details),
+                     [sink_id](const auto& sink_detail) { return sink_detail.id == sink_id; });
+
+    if (sink_id == "auto" || iter == std::end(sink_details)) {
+        if (sink_id != "auto") {
+            LOG_ERROR(Audio, "AudioCore::Sink::GetOutputSinkDetails given invalid sink_id {}",
+                      sink_id);
+        }
+        // Auto-select.
+        // sink_details is ordered in terms of desirability, with the best choice at the front.
+        iter = std::begin(sink_details);
+    }
+
+    return *iter;
+}
+} // Anonymous namespace
+
+std::vector<const char*> GetSinkIDs() {
+    std::vector<const char*> sink_ids(std::size(sink_details));
+
+    std::transform(std::begin(sink_details), std::end(sink_details), std::begin(sink_ids),
+                   [](const auto& sink) { return sink.id; });
+
+    return sink_ids;
+}
+
+std::vector<std::string> GetDeviceListForSink(std::string_view sink_id, bool capture) {
+    return GetOutputSinkDetails(sink_id).list_devices(capture);
+}
+
+std::unique_ptr<Sink> CreateSinkFromID(std::string_view sink_id, std::string_view device_id) {
+    return GetOutputSinkDetails(sink_id).factory(device_id);
+}
+
+} // namespace AudioCore::Sink