Prevent queue from growing to large, eating up all memory

sunshine/platform/linux/display.cpp

@@ -361,13 +361,10 @@ std::unique_ptr<mic_t> microphone(std::uint32_t sample_rate) {
 
   int status;
 
-  const char *audio_sink = nullptr;
+  const char *audio_sink = "@DEFAULT_MONITOR@";
   if(!config::audio.sink.empty()) {
     audio_sink = config::audio.sink.c_str();
   }
-  else {
-    audio_sink = "@DEFAULT_MONITOR@";
-  }
 
   mic->mic.reset(
     pa_simple_new(nullptr, "sunshine", pa_stream_direction_t::PA_STREAM_RECORD, audio_sink, "sunshine-record", &mic->ss, nullptr, nullptr, &status)

sunshine/platform/windows/audio.cpp

@@ -319,18 +319,11 @@ public:
 }
 
 namespace platf {
-class dummy_mic_t : public mic_t {
-public:
-  capture_e sample(std::vector<std::int16_t> &sample_buf) override {
-    return capture_e::ok;
-  }
-};
-
 std::unique_ptr<mic_t> microphone(std::uint32_t sample_rate) {
   auto mic = std::make_unique<audio::mic_wasapi_t>();
 
   if(mic->init(sample_rate)) {
-    return std::make_unique<dummy_mic_t>();
+    return nullptr;
   }
 
   return mic;