Remove remaining boost remnants from AlsaOut, fixed Linux compile issues in Transcoder

src/plugins/alsaout/AlsaOut.cpp

@@ -46,7 +46,7 @@ static musik::core::sdk::IPreferences* prefs;
 
 #define LOCK(x) \
     /*std::cerr << "locking " << x << "\n";*/ \
-    boost::recursive_mutex::scoped_lock lock(this->stateMutex); \
+    std::unique_lock<std::recursive_mutex> lock(this->stateMutex); \
     /*std::cerr << "locked " << x << "\n";*/ \
 
 #define WAIT() this->threadEvent.wait(lock);
@@ -143,7 +143,7 @@ AlsaOut::AlsaOut()
 , latency(0)
 , initialized(false) {
     std::cerr << "AlsaOut::AlsaOut() called" << std::endl;
-    this->writeThread.reset(new boost::thread(boost::bind(&AlsaOut::WriteLoop, this)));
+    this->writeThread.reset(new std::thread(std::bind(&AlsaOut::WriteLoop, this)));
 }
 
 AlsaOut::~AlsaOut() {

src/plugins/alsaout/AlsaOut.h

@@ -35,15 +35,15 @@
 
 #include "pch.h"
 
-#include <boost/thread/condition.hpp>
-#include <boost/thread/thread.hpp>
-
 #include <musikcore/sdk/IOutput.h>
 #include <musikcore/sdk/IDevice.h>
 
-#include <boost/thread/recursive_mutex.hpp>
-#include <boost/thread/condition.hpp>
 #include <list>
+#include <vector>
+#include <mutex>
+#include <condition_variable>
+#include <thread>
+#include <functional>
 
 class AlsaOut : public musik::core::sdk::IOutput {
     public:
@@ -97,10 +97,10 @@ class AlsaOut : public musik::core::sdk::IOutput {
         double latency;
         volatile bool quit, paused, initialized;
 
-        std::unique_ptr<boost::thread> writeThread;
-        boost::recursive_mutex stateMutex;
-        boost::condition threadEvent;
+        std::unique_ptr<std::thread> writeThread;
+        std::recursive_mutex stateMutex;
+        std::condition_variable_any threadEvent;
+        std::mutex mutex;
 
         std::list<std::shared_ptr<BufferContext> > buffers;
-        boost::mutex mutex;
 };

src/plugins/server/Transcoder.cpp

@@ -43,6 +43,7 @@
 #include <set>
 #include <map>
 #include <filesystem>
+#include <functional>
 #include <chrono>
 
 namespace fs = std::filesystem;