Merge pull request #1902 from lioncash/audio

audio_core: Make g_sink_details internally linked

1 files changed, 45 insertions, 8 deletions

diff --git a/src/audio_core/sink_details.cpp b/src/audio_core/sink_details.cpp
index 67cf1f3b2..a848eb1c9 100644
--- a/src/audio_core/sink_details.cpp
+++ b/src/audio_core/sink_details.cpp
@@ -14,31 +14,68 @@
 #include "common/logging/log.h"
 
 namespace AudioCore {
+namespace {
+struct SinkDetails {
+    using FactoryFn = std::unique_ptr<Sink> (*)(std::string_view);
+    using ListDevicesFn = std::vector<std::string> (*)();
 
-// g_sink_details is ordered in terms of desirability, with the best choice at the top.
-const std::vector<SinkDetails> g_sink_details = {
+    /// 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::make_unique<CubebSink, std::string>, &ListCubebSinkDevices},
+    SinkDetails{"cubeb",
+                [](std::string_view device_id) -> std::unique_ptr<Sink> {
+                    return std::make_unique<CubebSink>(device_id);
+                },
+                &ListCubebSinkDevices},
 #endif
-    SinkDetails{"null", &std::make_unique<NullSink, std::string>,
+    SinkDetails{"null",
+                [](std::string_view device_id) -> std::unique_ptr<Sink> {
+                    return std::make_unique<NullSink>(device_id);
+                },
                 [] { return std::vector<std::string>{"null"}; }},
 };
 
 const SinkDetails& GetSinkDetails(std::string_view sink_id) {
     auto iter =
-        std::find_if(g_sink_details.begin(), g_sink_details.end(),
+        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 == g_sink_details.end()) {
+    if (sink_id == "auto" || iter == std::end(sink_details)) {
         if (sink_id != "auto") {
             LOG_ERROR(Audio, "AudioCore::SelectSink given invalid sink_id {}", sink_id);
         }
         // Auto-select.
-        // g_sink_details is ordered in terms of desirability, with the best choice at the front.
-        iter = g_sink_details.begin();
+        // 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) {
+    return GetSinkDetails(sink_id).list_devices();
+}
+
+std::unique_ptr<Sink> CreateSinkFromID(std::string_view sink_id, std::string_view device_id) {
+    return GetSinkDetails(sink_id).factory(device_id);
+}
 
 } // namespace AudioCore