Run the music manager from the sfx thread.

src/audio/sfx_manager.cpp

@@ -214,9 +214,19 @@ void SFXManager::queueCommand(SFXCommand *command)
     m_sfx_commands.getData().push_back(command);
     m_sfx_commands.unlock();
     // Wake up the sfx thread
-    pthread_cond_signal(&m_cond_request);
 }   // queueCommand
 
+//----------------------------------------------------------------------------
+/** Make sures that the sfx thread is started at least one per frame. It also
+ *  adds an update command for the music manager.
+ *  \param dt Time step size.
+ */
+void SFXManager::update(float dt)
+{
+    queue(SFX_UPDATE_MUSIC, NULL, dt);
+    pthread_cond_signal(&m_cond_request);
+}   // update
+
 //----------------------------------------------------------------------------
 /** Puts a NULL request into the queue, which will trigger the thread to
  *  exit.
@@ -279,6 +289,8 @@ void* SFXManager::mainLoop(void *obj)
                               me->deleteSFX(current->m_sfx);    break;
                            }
         case SFX_LISTENER: me->reallyPositionListenerNow();     break;
+        case SFX_UPDATE_MUSIC: music_manager->update(
+                                  current->m_parameter.getX()); break;
         default: assert("Not yet supported.");
         }
         delete current;
@@ -326,7 +338,7 @@ void SFXManager::soundToggled(const bool on)
     {
         pauseAll();
     }
-}
+}   // soundToggled
 
 //----------------------------------------------------------------------------
 /** Returns if sfx can be played. This means sfx are enabled and

src/audio/sfx_manager.hpp

@@ -71,6 +71,7 @@ public:
         SFX_POSITION,
         SFX_VOLUME,
         SFX_LISTENER,
+        SFX_UPDATE_MUSIC,
         SFX_EXIT,
     };   // SFXCommands
 
@@ -213,6 +214,7 @@ public:
     void                     deleteSFXMapping(const std::string &name);
     void                     pauseAll();
     void                     resumeAll();
+    void                     update(float dt);
     bool                     soundExist(const std::string &name);
     void                     setMasterSFXVolume(float gain);
     float                    getMasterSFXVolume() const { return m_master_gain; }

src/main_loop.cpp

@@ -21,7 +21,7 @@
 
 #include <assert.h>
 
-#include "audio/music_manager.hpp"
+#include "audio/sfx_manager.hpp"
 #include "config/user_config.hpp"
 #include "graphics/irr_driver.hpp"
 #include "graphics/material_manager.hpp"
@@ -138,7 +138,7 @@ void MainLoop::run()
         if (!m_abort && !ProfileWorld::isNoGraphics())
         {
             PROFILER_PUSH_CPU_MARKER("Music/input/GUI", 0x7F, 0x00, 0x00);
-            music_manager->update(dt);
+            SFXManager::get()->update(dt);
             input_manager->update(dt);
 
             #ifdef ENABLE_WIIUSE