diff --git a/apps/opencs/CMakeLists.txt b/apps/opencs/CMakeLists.txt
index 401e7896de..dc9b985969 100644
--- a/apps/opencs/CMakeLists.txt
+++ b/apps/opencs/CMakeLists.txt
@@ -216,7 +216,6 @@ endif(APPLE)
 
 target_link_libraries(openmw-cs
     ${OSG_LIBRARIES}
-    ${OPENTHREADS_LIBRARIES}
     ${OSGTEXT_LIBRARIES}
     ${OSGUTIL_LIBRARIES}
     ${OSGVIEWER_LIBRARIES}
diff --git a/apps/opencs/view/render/scenewidget.cpp b/apps/opencs/view/render/scenewidget.cpp
index 9747c3de05..f3186e76a9 100644
--- a/apps/opencs/view/render/scenewidget.cpp
+++ b/apps/opencs/view/render/scenewidget.cpp
@@ -1,5 +1,8 @@
 #include "scenewidget.hpp"
 
+#include <chrono>
+#include <thread>
+
 #include <QEvent>
 #include <QResizeEvent>
 #include <QTimer>
@@ -184,7 +187,7 @@ void CompositeViewer::update()
     double minFrameTime = _runMaxFrameRate > 0.0 ? 1.0 / _runMaxFrameRate : 0.0;
     if (dt < minFrameTime)
     {
-        OpenThreads::Thread::microSleep(1000*1000*(minFrameTime-dt));
+        std::this_thread::sleep_for(std::chrono::duration<double>(minFrameTime - dt));
     }
 }
 
diff --git a/apps/openmw/CMakeLists.txt b/apps/openmw/CMakeLists.txt
index d174d7b155..fddfa276f9 100644
--- a/apps/openmw/CMakeLists.txt
+++ b/apps/openmw/CMakeLists.txt
@@ -123,7 +123,6 @@ include_directories(
 
 target_link_libraries(openmw
     ${OSG_LIBRARIES}
-    ${OPENTHREADS_LIBRARIES}
     ${OSGPARTICLE_LIBRARIES}
     ${OSGUTIL_LIBRARIES}
     ${OSGDB_LIBRARIES}
diff --git a/apps/openmw/engine.cpp b/apps/openmw/engine.cpp
index b1c5bcfdec..ec12d6a1f7 100644
--- a/apps/openmw/engine.cpp
+++ b/apps/openmw/engine.cpp
@@ -2,6 +2,8 @@
 
 #include <iomanip>
 #include <fstream>
+#include <chrono>
+#include <thread>
 
 #include <boost/filesystem/fstream.hpp>
 
@@ -886,7 +888,7 @@ void OMW::Engine::go()
 
         if (!frame(dt))
         {
-            OpenThreads::Thread::microSleep(5000);
+            std::this_thread::sleep_for(std::chrono::milliseconds(5));
             continue;
         }
         else
diff --git a/apps/openmw/mwbase/environment.cpp b/apps/openmw/mwbase/environment.cpp
index c70debda1d..764a07ec96 100644
--- a/apps/openmw/mwbase/environment.cpp
+++ b/apps/openmw/mwbase/environment.cpp
@@ -1,8 +1,8 @@
 #include "environment.hpp"
 
 #include <cassert>
-
-#include <OpenThreads/Thread>
+#include <chrono>
+#include <thread>
 
 #include "world.hpp"
 #include "scriptmanager.hpp"
@@ -99,7 +99,7 @@ void MWBase::Environment::limitFrameRate(double dt) const
         double minFrameTime = 1.0 / static_cast<double>(mFrameRateLimit);
         if (thisFrameTime < minFrameTime)
         {
-            OpenThreads::Thread::microSleep(1000*1000*(minFrameTime-thisFrameTime));
+            std::this_thread::sleep_for(std::chrono::duration<double>(minFrameTime - thisFrameTime));
         }
     }
 }
diff --git a/apps/openmw/mwgui/windowmanagerimp.cpp b/apps/openmw/mwgui/windowmanagerimp.cpp
index 8f83c165ae..02b42c9cde 100644
--- a/apps/openmw/mwgui/windowmanagerimp.cpp
+++ b/apps/openmw/mwgui/windowmanagerimp.cpp
@@ -1,6 +1,8 @@
 #include "windowmanagerimp.hpp"
 
 #include <cassert>
+#include <chrono>
+#include <thread>
 
 #include <osgViewer/Viewer>
 
@@ -715,7 +717,7 @@ namespace MWGui
                 MWBase::Environment::get().getInputManager()->update(dt, true, false);
 
                 if (!mWindowVisible)
-                    OpenThreads::Thread::microSleep(5000);
+                    std::this_thread::sleep_for(std::chrono::milliseconds(5));
                 else
                 {
                     mViewer->eventTraversal();
@@ -1754,7 +1756,7 @@ namespace MWGui
             if (!mWindowVisible)
             {
                 mVideoWidget->pause();
-                OpenThreads::Thread::microSleep(5000);
+                std::this_thread::sleep_for(std::chrono::milliseconds(5));
             }
             else
             {
diff --git a/apps/openmw/mwrender/objectpaging.cpp b/apps/openmw/mwrender/objectpaging.cpp
index 4810b2385b..fd12ad3677 100644
--- a/apps/openmw/mwrender/objectpaging.cpp
+++ b/apps/openmw/mwrender/objectpaging.cpp
@@ -428,7 +428,7 @@ namespace MWRender
 
         if (activeGrid)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+            std::lock_guard<std::mutex> lock(mRefTrackerMutex);
             for (auto ref : getRefTracker().mBlacklist)
                 refs.erase(ref);
         }
@@ -464,7 +464,7 @@ namespace MWRender
             float dSqr = (viewPoint - pos).length2();
             if (!activeGrid)
             {
-                OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mSizeCacheMutex);
+                std::lock_guard<std::mutex> lock(mSizeCacheMutex);
                 SizeCache::iterator found = mSizeCache.find(pair.first);
                 if (found != mSizeCache.end() && found->second < dSqr*minSize*minSize)
                     continue;
@@ -501,7 +501,7 @@ namespace MWRender
             }
 
             {
-                OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+                std::lock_guard<std::mutex> lock(mRefTrackerMutex);
                 if (getRefTracker().mDisabled.count(pair.first))
                     continue;
             }
@@ -509,7 +509,7 @@ namespace MWRender
             float radius2 = cnode->getBound().radius2() * ref.mScale*ref.mScale;
             if (radius2 < dSqr*minSize*minSize && !activeGrid)
             {
-                OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mSizeCacheMutex);
+                std::lock_guard<std::mutex> lock(mSizeCacheMutex);
                 mSizeCache[pair.first] = radius2;
                 continue;
             }
@@ -685,7 +685,7 @@ namespace MWRender
             return false;
 
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+            std::lock_guard<std::mutex> lock(mRefTrackerMutex);
             if (enabled && !getWritableRefTracker().mDisabled.erase(refnum)) return false;
             if (!enabled && !getWritableRefTracker().mDisabled.insert(refnum).second) return false;
             if (mRefTrackerLocked) return false;
@@ -706,7 +706,7 @@ namespace MWRender
             return false;
 
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+            std::lock_guard<std::mutex> lock(mRefTrackerMutex);
             if (!getWritableRefTracker().mBlacklist.insert(refnum).second) return false;
             if (mRefTrackerLocked) return false;
         }
@@ -724,7 +724,7 @@ namespace MWRender
 
     void ObjectPaging::clear()
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+        std::lock_guard<std::mutex> lock(mRefTrackerMutex);
         mRefTrackerNew.mDisabled.clear();
         mRefTrackerNew.mBlacklist.clear();
         mRefTrackerLocked = true;
@@ -734,7 +734,7 @@ namespace MWRender
     {
         if (!mRefTrackerLocked) return false;
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mRefTrackerMutex);
+            std::lock_guard<std::mutex> lock(mRefTrackerMutex);
             mRefTrackerLocked = false;
             if (mRefTracker == mRefTrackerNew)
                 return false;
diff --git a/apps/openmw/mwrender/objectpaging.hpp b/apps/openmw/mwrender/objectpaging.hpp
index 9c2c54f655..2ca3020386 100644
--- a/apps/openmw/mwrender/objectpaging.hpp
+++ b/apps/openmw/mwrender/objectpaging.hpp
@@ -5,7 +5,7 @@
 #include <components/resource/resourcemanager.hpp>
 #include <components/esm/loadcell.hpp>
 
-#include <OpenThreads/Mutex>
+#include <mutex>
 
 namespace Resource
 {
@@ -58,7 +58,7 @@ namespace MWRender
         float mMinSizeMergeFactor;
         float mMinSizeCostMultiplier;
 
-        OpenThreads::Mutex mRefTrackerMutex;
+        std::mutex mRefTrackerMutex;
         struct RefTracker
         {
             std::set<ESM::RefNum> mDisabled;
@@ -72,7 +72,7 @@ namespace MWRender
         const RefTracker& getRefTracker() const { return mRefTracker; }
         RefTracker& getWritableRefTracker() { return mRefTrackerLocked ? mRefTrackerNew : mRefTracker; }
 
-        OpenThreads::Mutex mSizeCacheMutex;
+        std::mutex mSizeCacheMutex;
         typedef std::map<ESM::RefNum, float> SizeCache;
         SizeCache mSizeCache;
     };
diff --git a/apps/openmw/mwrender/renderingmanager.cpp b/apps/openmw/mwrender/renderingmanager.cpp
index fc78b6ebbc..0c6e48645b 100644
--- a/apps/openmw/mwrender/renderingmanager.cpp
+++ b/apps/openmw/mwrender/renderingmanager.cpp
@@ -2,6 +2,8 @@
 
 #include <limits>
 #include <cstdlib>
+#include <condition_variable>
+#include <mutex>
 
 #include <osg/Light>
 #include <osg/LightModel>
@@ -709,24 +711,24 @@ namespace MWRender
 
         virtual void operator () (osg::RenderInfo& renderInfo) const
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+            std::lock_guard<std::mutex> lock(mMutex);
             if (renderInfo.getState()->getFrameStamp()->getFrameNumber() >= mFrame)
             {
                 mDone = true;
-                mCondition.signal();
+                mCondition.notify_one();
             }
         }
 
         void waitTillDone()
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+            std::unique_lock<std::mutex> lock(mMutex);
             if (mDone)
                 return;
-            mCondition.wait(&mMutex);
+            mCondition.wait(lock);
         }
 
-        mutable OpenThreads::Condition mCondition;
-        mutable OpenThreads::Mutex mMutex;
+        mutable std::condition_variable mCondition;
+        mutable std::mutex mMutex;
         mutable bool mDone;
         unsigned int mFrame;
     };
diff --git a/apps/openmw/mwsound/openal_output.cpp b/apps/openmw/mwsound/openal_output.cpp
index 5955187261..1606b29797 100644
--- a/apps/openmw/mwsound/openal_output.cpp
+++ b/apps/openmw/mwsound/openal_output.cpp
@@ -4,6 +4,10 @@
 #include <memory>
 #include <array>
 #include <atomic>
+#include <condition_variable>
+#include <thread>
+#include <mutex>
+#include <chrono>
 
 #include <stdint.h>
 
@@ -11,11 +15,6 @@
 #include <components/misc/constants.hpp>
 #include <components/vfs/manager.hpp>
 
-#include <OpenThreads/Thread>
-#include <OpenThreads/Condition>
-#include <OpenThreads/Mutex>
-#include <OpenThreads/ScopedLock>
-
 #include "openal_output.hpp"
 #include "sound_decoder.hpp"
 #include "sound.hpp"
@@ -309,31 +308,33 @@ const ALfloat OpenAL_SoundStream::sBufferLength = 0.125f;
 //
 // A background streaming thread (keeps active streams processed)
 //
-struct OpenAL_Output::StreamThread : public OpenThreads::Thread {
+struct OpenAL_Output::StreamThread
+{
     typedef std::vector<OpenAL_SoundStream*> StreamVec;
     StreamVec mStreams;
 
     std::atomic<bool> mQuitNow;
-    OpenThreads::Mutex mMutex;
-    OpenThreads::Condition mCondVar;
+    std::mutex mMutex;
+    std::condition_variable mCondVar;
+    std::thread mThread;
 
     StreamThread()
       : mQuitNow(false)
+      , mThread([this] { run(); })
     {
-        start();
     }
     ~StreamThread()
     {
         mQuitNow = true;
         mMutex.lock(); mMutex.unlock();
-        mCondVar.broadcast();
-        join();
+        mCondVar.notify_all();
+        mThread.join();
     }
 
     // thread entry point
-    virtual void run()
+    void run()
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::unique_lock<std::mutex> lock(mMutex);
         while(!mQuitNow)
         {
             StreamVec::iterator iter = mStreams.begin();
@@ -345,30 +346,30 @@ struct OpenAL_Output::StreamThread : public OpenThreads::Thread {
                     ++iter;
             }
 
-            mCondVar.wait(&mMutex, 50);
+            mCondVar.wait_for(lock, std::chrono::milliseconds(50));
         }
     }
 
     void add(OpenAL_SoundStream *stream)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
         if(std::find(mStreams.begin(), mStreams.end(), stream) == mStreams.end())
         {
             mStreams.push_back(stream);
-            mCondVar.broadcast();
+            mCondVar.notify_all();
         }
     }
 
     void remove(OpenAL_SoundStream *stream)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
         StreamVec::iterator iter = std::find(mStreams.begin(), mStreams.end(), stream);
         if(iter != mStreams.end()) mStreams.erase(iter);
     }
 
     void removeAll()
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
         mStreams.clear();
     }
 
@@ -1341,7 +1342,7 @@ double OpenAL_Output::getStreamOffset(Stream *sound)
 {
     if(!sound->mHandle) return 0.0;
     OpenAL_SoundStream *stream = reinterpret_cast<OpenAL_SoundStream*>(sound->mHandle);
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mStreamThread->mMutex);
+    std::lock_guard<std::mutex> lock(mStreamThread->mMutex);
     return stream->getStreamOffset();
 }
 
@@ -1349,7 +1350,7 @@ float OpenAL_Output::getStreamLoudness(Stream *sound)
 {
     if(!sound->mHandle) return 0.0;
     OpenAL_SoundStream *stream = reinterpret_cast<OpenAL_SoundStream*>(sound->mHandle);
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mStreamThread->mMutex);
+    std::lock_guard<std::mutex> lock(mStreamThread->mMutex);
     return stream->getCurrentLoudness();
 }
 
@@ -1357,7 +1358,7 @@ bool OpenAL_Output::isStreamPlaying(Stream *sound)
 {
     if(!sound->mHandle) return false;
     OpenAL_SoundStream *stream = reinterpret_cast<OpenAL_SoundStream*>(sound->mHandle);
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mStreamThread->mMutex);
+    std::lock_guard<std::mutex> lock(mStreamThread->mMutex);
     return stream->isPlaying();
 }
 
diff --git a/apps/openmw/mwworld/scene.cpp b/apps/openmw/mwworld/scene.cpp
index 1138483946..64316789fe 100644
--- a/apps/openmw/mwworld/scene.cpp
+++ b/apps/openmw/mwworld/scene.cpp
@@ -1,6 +1,8 @@
 #include "scene.hpp"
 
 #include <limits>
+#include <chrono>
+#include <thread>
 
 #include <BulletCollision/CollisionDispatch/btCollisionObject.h>
 #include <BulletCollision/CollisionShapes/btCompoundShape.h>
@@ -1140,7 +1142,7 @@ namespace MWWorld
             }
             else
                 loadingListener->setProgress(0);
-            OpenThreads::Thread::microSleep(5000);
+            std::this_thread::sleep_for(std::chrono::milliseconds(5));
         }
     }
 
diff --git a/components/esmterrain/storage.cpp b/components/esmterrain/storage.cpp
index fc93706a37..cf27b7128d 100644
--- a/components/esmterrain/storage.cpp
+++ b/components/esmterrain/storage.cpp
@@ -2,8 +2,6 @@
 
 #include <set>
 
-#include <OpenThreads/ScopedLock>
-
 #include <osg/Image>
 #include <osg/Plane>
 
@@ -548,7 +546,7 @@ namespace ESMTerrain
 
     Terrain::LayerInfo Storage::getLayerInfo(const std::string& texture)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mLayerInfoMutex);
+        std::lock_guard<std::mutex> lock(mLayerInfoMutex);
 
         // Already have this cached?
         std::map<std::string, Terrain::LayerInfo>::iterator found = mLayerInfoMap.find(texture);
diff --git a/components/esmterrain/storage.hpp b/components/esmterrain/storage.hpp
index a5f62ba48d..c645311401 100644
--- a/components/esmterrain/storage.hpp
+++ b/components/esmterrain/storage.hpp
@@ -2,8 +2,7 @@
 #define COMPONENTS_ESM_TERRAIN_STORAGE_H
 
 #include <cassert>
-
-#include <OpenThreads/Mutex>
+#include <mutex>
 
 #include <components/terrain/storage.hpp>
 
@@ -138,7 +137,7 @@ namespace ESMTerrain
         std::string getTextureName (UniqueTextureId id);
 
         std::map<std::string, Terrain::LayerInfo> mLayerInfoMap;
-        OpenThreads::Mutex mLayerInfoMutex;
+        std::mutex mLayerInfoMutex;
 
         std::string mNormalMapPattern;
         std::string mNormalHeightMapPattern;
diff --git a/components/nifosg/nifloader.cpp b/components/nifosg/nifloader.cpp
index 6830e792fe..8266b5e016 100644
--- a/components/nifosg/nifloader.cpp
+++ b/components/nifosg/nifloader.cpp
@@ -1,5 +1,7 @@
 #include "nifloader.hpp"
 
+#include <mutex>
+
 #include <osg/Matrixf>
 #include <osg/MatrixTransform>
 #include <osg/Geometry>
@@ -1730,8 +1732,8 @@ namespace NifOsg
         {
             typedef std::set<osg::ref_ptr<Attribute>, CompareStateAttribute> Cache;
             static Cache sCache;
-            static OpenThreads::Mutex sMutex;
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(sMutex);
+            static std::mutex sMutex;
+            std::lock_guard<std::mutex> lock(sMutex);
             typename Cache::iterator found = sCache.find(attr);
             if (found == sCache.end())
                 found = sCache.insert(attr).first;
diff --git a/components/resource/multiobjectcache.cpp b/components/resource/multiobjectcache.cpp
index d6639d3aec..9d75d2480a 100644
--- a/components/resource/multiobjectcache.cpp
+++ b/components/resource/multiobjectcache.cpp
@@ -21,7 +21,7 @@ namespace Resource
     {
         std::vector<osg::ref_ptr<osg::Object> > objectsToRemove;
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
 
             // Remove unreferenced entries from object cache
             ObjectCacheMap::iterator oitr = _objectCache.begin();
@@ -45,7 +45,7 @@ namespace Resource
 
     void MultiObjectCache::clear()
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+        std::lock_guard<std::mutex> lock(_objectCacheMutex);
         _objectCache.clear();
     }
 
@@ -56,13 +56,13 @@ namespace Resource
             OSG_ALWAYS << " trying to add NULL object to cache for " << filename << std::endl;
             return;
         }
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+        std::lock_guard<std::mutex> lock(_objectCacheMutex);
         _objectCache.insert(std::make_pair(filename, object));
     }
 
     osg::ref_ptr<osg::Object> MultiObjectCache::takeFromObjectCache(const std::string &fileName)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+        std::lock_guard<std::mutex> lock(_objectCacheMutex);
         ObjectCacheMap::iterator found = _objectCache.find(fileName);
         if (found == _objectCache.end())
             return osg::ref_ptr<osg::Object>();
@@ -76,7 +76,7 @@ namespace Resource
 
     void MultiObjectCache::releaseGLObjects(osg::State *state)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+        std::lock_guard<std::mutex> lock(_objectCacheMutex);
 
         for(ObjectCacheMap::iterator itr = _objectCache.begin();
             itr != _objectCache.end();
@@ -89,7 +89,7 @@ namespace Resource
 
     unsigned int MultiObjectCache::getCacheSize() const
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+        std::lock_guard<std::mutex> lock(_objectCacheMutex);
         return _objectCache.size();
     }
 
diff --git a/components/resource/multiobjectcache.hpp b/components/resource/multiobjectcache.hpp
index b73e29d50f..543406ebd8 100644
--- a/components/resource/multiobjectcache.hpp
+++ b/components/resource/multiobjectcache.hpp
@@ -3,6 +3,7 @@
 
 #include <map>
 #include <string>
+#include <mutex>
 
 #include <osg/ref_ptr>
 #include <osg/Referenced>
@@ -43,7 +44,7 @@ namespace Resource
         typedef std::multimap<std::string, osg::ref_ptr<osg::Object> >             ObjectCacheMap;
 
         ObjectCacheMap                          _objectCache;
-        mutable OpenThreads::Mutex              _objectCacheMutex;
+        mutable std::mutex                      _objectCacheMutex;
 
     };
 
diff --git a/components/resource/objectcache.hpp b/components/resource/objectcache.hpp
index 24d7d04a97..6e309a7f77 100644
--- a/components/resource/objectcache.hpp
+++ b/components/resource/objectcache.hpp
@@ -26,6 +26,7 @@
 
 #include <string>
 #include <map>
+#include <mutex>
 
 namespace osg
 {
@@ -53,7 +54,7 @@ class GenericObjectCache : public osg::Referenced
         void updateTimeStampOfObjectsInCacheWithExternalReferences(double referenceTime)
         {
             // look for objects with external references and update their time stamp.
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             for(typename ObjectCacheMap::iterator itr=_objectCache.begin(); itr!=_objectCache.end(); ++itr)
             {
                 // If ref count is greater than 1, the object has an external reference.
@@ -71,7 +72,7 @@ class GenericObjectCache : public osg::Referenced
         {
             std::vector<osg::ref_ptr<osg::Object> > objectsToRemove;
             {
-                OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+                std::lock_guard<std::mutex> lock(_objectCacheMutex);
                 // Remove expired entries from object cache
                 typename ObjectCacheMap::iterator oitr = _objectCache.begin();
                 while(oitr != _objectCache.end())
@@ -92,21 +93,21 @@ class GenericObjectCache : public osg::Referenced
         /** Remove all objects in the cache regardless of having external references or expiry times.*/
         void clear()
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             _objectCache.clear();
         }
 
         /** Add a key,object,timestamp triple to the Registry::ObjectCache.*/
         void addEntryToObjectCache(const KeyType& key, osg::Object* object, double timestamp = 0.0)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             _objectCache[key]=ObjectTimeStampPair(object,timestamp);
         }
 
         /** Remove Object from cache.*/
         void removeFromObjectCache(const KeyType& key)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             typename ObjectCacheMap::iterator itr = _objectCache.find(key);
             if (itr!=_objectCache.end()) _objectCache.erase(itr);
         }
@@ -114,7 +115,7 @@ class GenericObjectCache : public osg::Referenced
         /** Get an ref_ptr<Object> from the object cache*/
         osg::ref_ptr<osg::Object> getRefFromObjectCache(const KeyType& key)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             typename ObjectCacheMap::iterator itr = _objectCache.find(key);
             if (itr!=_objectCache.end())
                 return itr->second.first;
@@ -124,7 +125,7 @@ class GenericObjectCache : public osg::Referenced
         /** Check if an object is in the cache, and if it is, update its usage time stamp. */
         bool checkInObjectCache(const KeyType& key, double timeStamp)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             typename ObjectCacheMap::iterator itr = _objectCache.find(key);
             if (itr!=_objectCache.end())
             {
@@ -137,7 +138,7 @@ class GenericObjectCache : public osg::Referenced
         /** call releaseGLObjects on all objects attached to the object cache.*/
         void releaseGLObjects(osg::State* state)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             for(typename ObjectCacheMap::iterator itr = _objectCache.begin(); itr != _objectCache.end(); ++itr)
             {
                 osg::Object* object = itr->second.first.get();
@@ -148,7 +149,7 @@ class GenericObjectCache : public osg::Referenced
         /** call node->accept(nv); for all nodes in the objectCache. */
         void accept(osg::NodeVisitor& nv)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             for(typename ObjectCacheMap::iterator itr = _objectCache.begin(); itr != _objectCache.end(); ++itr)
             {
                 osg::Object* object = itr->second.first.get();
@@ -165,7 +166,7 @@ class GenericObjectCache : public osg::Referenced
         template <class Functor>
         void call(Functor& f)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             for (typename ObjectCacheMap::iterator it = _objectCache.begin(); it != _objectCache.end(); ++it)
                 f(it->first, it->second.first.get());
         }
@@ -173,7 +174,7 @@ class GenericObjectCache : public osg::Referenced
         /** Get the number of objects in the cache. */
         unsigned int getCacheSize() const
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_objectCacheMutex);
+            std::lock_guard<std::mutex> lock(_objectCacheMutex);
             return _objectCache.size();
         }
 
@@ -185,7 +186,7 @@ class GenericObjectCache : public osg::Referenced
         typedef std::map<KeyType, ObjectTimeStampPair >             ObjectCacheMap;
 
         ObjectCacheMap                          _objectCache;
-        mutable OpenThreads::Mutex              _objectCacheMutex;
+        mutable std::mutex                      _objectCacheMutex;
 
 };
 
diff --git a/components/resource/scenemanager.cpp b/components/resource/scenemanager.cpp
index 8264e3b1ee..ca6c7c895e 100644
--- a/components/resource/scenemanager.cpp
+++ b/components/resource/scenemanager.cpp
@@ -126,7 +126,7 @@ namespace Resource
 
         void clearCache()
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_listMutex);
+            std::lock_guard<OpenThreads::Mutex> lock(_listMutex);
             _sharedTextureList.clear();
             _sharedStateSetList.clear();
         }
@@ -625,7 +625,7 @@ namespace Resource
 
         mShaderManager->releaseGLObjects(state);
 
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mSharedStateMutex);
+        std::lock_guard<std::mutex> lock(mSharedStateMutex);
         mSharedStateManager->releaseGLObjects(state);
     }
 
@@ -717,7 +717,7 @@ namespace Resource
 
         if (mIncrementalCompileOperation)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(*mIncrementalCompileOperation->getToCompiledMutex());
+            std::lock_guard<OpenThreads::Mutex> lock(*mIncrementalCompileOperation->getToCompiledMutex());
             osgUtil::IncrementalCompileOperation::CompileSets& sets = mIncrementalCompileOperation->getToCompile();
             for(osgUtil::IncrementalCompileOperation::CompileSets::iterator it = sets.begin(); it != sets.end();)
             {
@@ -738,7 +738,7 @@ namespace Resource
     {
         ResourceManager::clearCache();
 
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mSharedStateMutex);
+        std::lock_guard<std::mutex> lock(mSharedStateMutex);
         mSharedStateManager->clearCache();
         mInstanceCache->clear();
     }
@@ -747,12 +747,12 @@ namespace Resource
     {
         if (mIncrementalCompileOperation)
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(*mIncrementalCompileOperation->getToCompiledMutex());
+            std::lock_guard<OpenThreads::Mutex> lock(*mIncrementalCompileOperation->getToCompiledMutex());
             stats->setAttribute(frameNumber, "Compiling", mIncrementalCompileOperation->getToCompile().size());
         }
 
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mSharedStateMutex);
+            std::lock_guard<std::mutex> lock(mSharedStateMutex);
             stats->setAttribute(frameNumber, "Texture", mSharedStateManager->getNumSharedTextures());
             stats->setAttribute(frameNumber, "StateSet", mSharedStateManager->getNumSharedStateSets());
         }
diff --git a/components/resource/scenemanager.hpp b/components/resource/scenemanager.hpp
index bbe88c9a0e..3a72caf6a3 100644
--- a/components/resource/scenemanager.hpp
+++ b/components/resource/scenemanager.hpp
@@ -4,6 +4,7 @@
 #include <string>
 #include <map>
 #include <memory>
+#include <mutex>
 
 #include <osg/ref_ptr>
 #include <osg/Node>
@@ -159,7 +160,7 @@ namespace Resource
         osg::ref_ptr<MultiObjectCache> mInstanceCache;
 
         osg::ref_ptr<Resource::SharedStateManager> mSharedStateManager;
-        mutable OpenThreads::Mutex mSharedStateMutex;
+        mutable std::mutex mSharedStateMutex;
 
         Resource::ImageManager* mImageManager;
         Resource::NifFileManager* mNifFileManager;
diff --git a/components/sceneutil/mwshadowtechnique.cpp b/components/sceneutil/mwshadowtechnique.cpp
index 98771bbb42..fa38da54e4 100644
--- a/components/sceneutil/mwshadowtechnique.cpp
+++ b/components/sceneutil/mwshadowtechnique.cpp
@@ -891,7 +891,7 @@ MWShadowTechnique::ViewDependentData* MWShadowTechnique::createViewDependentData
 
 MWShadowTechnique::ViewDependentData* MWShadowTechnique::getViewDependentData(osgUtil::CullVisitor* cv)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_viewDependentDataMapMutex);
+    std::lock_guard<std::mutex> lock(_viewDependentDataMapMutex);
     ViewDependentDataMap::iterator itr = _viewDependentDataMap.find(cv);
     if (itr!=_viewDependentDataMap.end()) return itr->second.get();
 
@@ -1343,7 +1343,7 @@ void MWShadowTechnique::cull(osgUtil::CullVisitor& cv)
                     std::string validRegionUniformName = "validRegionMatrix" + std::to_string(sm_i);
                     osg::ref_ptr<osg::Uniform> validRegionUniform;
 
-                    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_accessUniformsAndProgramMutex);
+                    std::lock_guard<std::mutex> lock(_accessUniformsAndProgramMutex);
 
                     for (auto uniform : _uniforms)
                     {
@@ -1467,7 +1467,7 @@ void MWShadowTechnique::createShaders()
 
     unsigned int _baseTextureUnit = 0;
 
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_accessUniformsAndProgramMutex);
+    std::lock_guard<std::mutex> lock(_accessUniformsAndProgramMutex);
 
     _shadowCastingStateSet = new osg::StateSet;
 
@@ -2980,7 +2980,7 @@ osg::StateSet* MWShadowTechnique::selectStateSetForRenderingShadow(ViewDependent
 
     osg::ref_ptr<osg::StateSet> stateset = vdd.getStateSet();
 
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_accessUniformsAndProgramMutex);
+    std::lock_guard<std::mutex> lock(_accessUniformsAndProgramMutex);
 
     vdd.getStateSet()->clear();
 
@@ -3057,7 +3057,7 @@ void MWShadowTechnique::resizeGLObjectBuffers(unsigned int /*maxSize*/)
 
 void MWShadowTechnique::releaseGLObjects(osg::State* state) const
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_viewDependentDataMapMutex);
+    std::lock_guard<std::mutex> lock(_viewDependentDataMapMutex);
     for(ViewDependentDataMap::const_iterator itr = _viewDependentDataMap.begin();
         itr != _viewDependentDataMap.end();
         ++itr)
diff --git a/components/sceneutil/mwshadowtechnique.hpp b/components/sceneutil/mwshadowtechnique.hpp
index 85e548b4b3..77d0bd2b26 100644
--- a/components/sceneutil/mwshadowtechnique.hpp
+++ b/components/sceneutil/mwshadowtechnique.hpp
@@ -19,6 +19,8 @@
 #ifndef COMPONENTS_SCENEUTIL_MWSHADOWTECHNIQUE_H
 #define COMPONENTS_SCENEUTIL_MWSHADOWTECHNIQUE_H 1
 
+#include <mutex>
+
 #include <osg/Camera>
 #include <osg/Material>
 #include <osg/MatrixTransform>
@@ -234,7 +236,7 @@ namespace SceneUtil {
         virtual ~MWShadowTechnique();
 
         typedef std::map< osgUtil::CullVisitor*, osg::ref_ptr<ViewDependentData> >  ViewDependentDataMap;
-        mutable OpenThreads::Mutex              _viewDependentDataMapMutex;
+        mutable std::mutex                      _viewDependentDataMapMutex;
         ViewDependentDataMap                    _viewDependentDataMap;
 
         osg::ref_ptr<osg::StateSet>             _shadowRecievingPlaceholderStateSet;
@@ -245,7 +247,7 @@ namespace SceneUtil {
         osg::ref_ptr<osg::Texture2D>            _fallbackShadowMapTexture;
 
         typedef std::vector< osg::ref_ptr<osg::Uniform> > Uniforms;
-        mutable OpenThreads::Mutex              _accessUniformsAndProgramMutex;
+        mutable std::mutex                      _accessUniformsAndProgramMutex;
         Uniforms                                _uniforms;
         osg::ref_ptr<osg::Program>              _program;
 
diff --git a/components/shader/shadermanager.cpp b/components/shader/shadermanager.cpp
index 4495e5b2e5..490c9d4383 100644
--- a/components/shader/shadermanager.cpp
+++ b/components/shader/shadermanager.cpp
@@ -273,7 +273,7 @@ namespace Shader
 
     osg::ref_ptr<osg::Shader> ShaderManager::getShader(const std::string &templateName, const ShaderManager::DefineMap &defines, osg::Shader::Type shaderType)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
 
         // read the template if we haven't already
         TemplateMap::iterator templateIt = mShaderTemplates.find(templateName);
@@ -323,7 +323,7 @@ namespace Shader
 
     osg::ref_ptr<osg::Program> ShaderManager::getProgram(osg::ref_ptr<osg::Shader> vertexShader, osg::ref_ptr<osg::Shader> fragmentShader)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
         ProgramMap::iterator found = mPrograms.find(std::make_pair(vertexShader, fragmentShader));
         if (found == mPrograms.end())
         {
@@ -362,7 +362,7 @@ namespace Shader
 
     void ShaderManager::releaseGLObjects(osg::State *state)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+        std::lock_guard<std::mutex> lock(mMutex);
         for (auto shader : mShaders)
         {
             if (shader.second != nullptr)
diff --git a/components/shader/shadermanager.hpp b/components/shader/shadermanager.hpp
index 8c5d6dfac2..ed5bbc907b 100644
--- a/components/shader/shadermanager.hpp
+++ b/components/shader/shadermanager.hpp
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <map>
+#include <mutex>
 
 #include <osg/ref_ptr>
 
@@ -10,8 +11,6 @@
 
 #include <osgViewer/Viewer>
 
-#include <OpenThreads/Mutex>
-
 namespace Shader
 {
 
@@ -63,7 +62,7 @@ namespace Shader
         typedef std::map<std::pair<osg::ref_ptr<osg::Shader>, osg::ref_ptr<osg::Shader> >, osg::ref_ptr<osg::Program> > ProgramMap;
         ProgramMap mPrograms;
 
-        OpenThreads::Mutex mMutex;
+        std::mutex mMutex;
 
         const osg::ref_ptr<osg::Uniform> mShadowMapAlphaTestEnableUniform = new osg::Uniform();
         const osg::ref_ptr<osg::Uniform> mShadowMapAlphaTestDisableUniform = new osg::Uniform();
diff --git a/components/terrain/buffercache.cpp b/components/terrain/buffercache.cpp
index 1734686def..5871b96bc0 100644
--- a/components/terrain/buffercache.cpp
+++ b/components/terrain/buffercache.cpp
@@ -2,8 +2,6 @@
 
 #include <cassert>
 
-#include <OpenThreads/ScopedLock>
-
 #include <osg/PrimitiveSet>
 
 #include "defs.hpp"
@@ -180,7 +178,7 @@ namespace Terrain
 
     osg::ref_ptr<osg::Vec2Array> BufferCache::getUVBuffer(unsigned int numVerts)
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mUvBufferMutex);
+        std::lock_guard<std::mutex> lock(mUvBufferMutex);
         if (mUvBufferMap.find(numVerts) != mUvBufferMap.end())
         {
             return mUvBufferMap[numVerts];
@@ -210,7 +208,7 @@ namespace Terrain
     osg::ref_ptr<osg::DrawElements> BufferCache::getIndexBuffer(unsigned int numVerts, unsigned int flags)
     {
         std::pair<int, int> id = std::make_pair(numVerts, flags);
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mIndexBufferMutex);
+        std::lock_guard<std::mutex> lock(mIndexBufferMutex);
 
         if (mIndexBufferMap.find(id) != mIndexBufferMap.end())
         {
@@ -234,11 +232,11 @@ namespace Terrain
     void BufferCache::clearCache()
     {
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mIndexBufferMutex);
+            std::lock_guard<std::mutex> lock(mIndexBufferMutex);
             mIndexBufferMap.clear();
         }
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mUvBufferMutex);
+            std::lock_guard<std::mutex> lock(mUvBufferMutex);
             mUvBufferMap.clear();
         }
     }
@@ -246,12 +244,12 @@ namespace Terrain
     void BufferCache::releaseGLObjects(osg::State *state)
     {
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mIndexBufferMutex);
+            std::lock_guard<std::mutex> lock(mIndexBufferMutex);
             for (auto indexbuffer : mIndexBufferMap)
                 indexbuffer.second->releaseGLObjects(state);
         }
         {
-            OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mUvBufferMutex);
+            std::lock_guard<std::mutex> lock(mUvBufferMutex);
             for (auto uvbuffer : mUvBufferMap)
                 uvbuffer.second->releaseGLObjects(state);
         }
diff --git a/components/terrain/buffercache.hpp b/components/terrain/buffercache.hpp
index 37563d2c67..929dbad6ff 100644
--- a/components/terrain/buffercache.hpp
+++ b/components/terrain/buffercache.hpp
@@ -6,6 +6,7 @@
 #include <osg/PrimitiveSet>
 
 #include <map>
+#include <mutex>
 
 namespace Terrain
 {
@@ -30,10 +31,10 @@ namespace Terrain
         // Index buffers are shared across terrain batches where possible. There is one index buffer for each
         // combination of LOD deltas and index buffer LOD we may need.
         std::map<std::pair<int, int>, osg::ref_ptr<osg::DrawElements> > mIndexBufferMap;
-        OpenThreads::Mutex mIndexBufferMutex;
+        std::mutex mIndexBufferMutex;
 
         std::map<int, osg::ref_ptr<osg::Vec2Array> > mUvBufferMap;
-        OpenThreads::Mutex mUvBufferMutex;
+        std::mutex mUvBufferMutex;
     };
 
 }
diff --git a/components/terrain/compositemaprenderer.cpp b/components/terrain/compositemaprenderer.cpp
index ee4a66fcde..2a3fa47daa 100644
--- a/components/terrain/compositemaprenderer.cpp
+++ b/components/terrain/compositemaprenderer.cpp
@@ -1,7 +1,5 @@
 #include "compositemaprenderer.hpp"
 
-#include <OpenThreads/ScopedLock>
-
 #include <osg/FrameBufferObject>
 #include <osg/Texture2D>
 #include <osg/RenderInfo>
@@ -50,7 +48,7 @@ void CompositeMapRenderer::drawImplementation(osg::RenderInfo &renderInfo) const
     if (mWorkQueue)
         mUnrefQueue->flush(mWorkQueue.get());
 
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
 
     if (mImmediateCompileSet.empty() && mCompileSet.empty())
         return;
@@ -177,7 +175,7 @@ void CompositeMapRenderer::setTargetFrameRate(float framerate)
 
 void CompositeMapRenderer::addCompositeMap(CompositeMap* compositeMap, bool immediate)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     if (immediate)
         mImmediateCompileSet.insert(compositeMap);
     else
@@ -186,7 +184,7 @@ void CompositeMapRenderer::addCompositeMap(CompositeMap* compositeMap, bool imme
 
 void CompositeMapRenderer::setImmediate(CompositeMap* compositeMap)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     CompileSet::iterator found = mCompileSet.find(compositeMap);
     if (found == mCompileSet.end())
         return;
@@ -199,7 +197,7 @@ void CompositeMapRenderer::setImmediate(CompositeMap* compositeMap)
 
 unsigned int CompositeMapRenderer::getCompileSetSize() const
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     return mCompileSet.size();
 }
 
diff --git a/components/terrain/compositemaprenderer.hpp b/components/terrain/compositemaprenderer.hpp
index 201130e303..9d5719c233 100644
--- a/components/terrain/compositemaprenderer.hpp
+++ b/components/terrain/compositemaprenderer.hpp
@@ -3,9 +3,8 @@
 
 #include <osg/Drawable>
 
-#include <OpenThreads/Mutex>
-
 #include <set>
+#include <mutex>
 
 namespace osg
 {
@@ -76,7 +75,7 @@ namespace Terrain
         mutable CompileSet mCompileSet;
         mutable CompileSet mImmediateCompileSet;
 
-        mutable OpenThreads::Mutex mMutex;
+        mutable std::mutex mMutex;
 
         osg::ref_ptr<osg::FrameBufferObject> mFBO;
     };
diff --git a/components/terrain/quadtreeworld.cpp b/components/terrain/quadtreeworld.cpp
index e094330610..ca1dcb08ce 100644
--- a/components/terrain/quadtreeworld.cpp
+++ b/components/terrain/quadtreeworld.cpp
@@ -453,7 +453,7 @@ void QuadTreeWorld::accept(osg::NodeVisitor &nv)
 
 void QuadTreeWorld::ensureQuadTreeBuilt()
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mQuadTreeMutex);
+    std::lock_guard<std::mutex> lock(mQuadTreeMutex);
     if (mQuadTreeBuilt)
         return;
 
diff --git a/components/terrain/quadtreeworld.hpp b/components/terrain/quadtreeworld.hpp
index 47cf461387..4c05efe646 100644
--- a/components/terrain/quadtreeworld.hpp
+++ b/components/terrain/quadtreeworld.hpp
@@ -4,7 +4,7 @@
 #include "world.hpp"
 #include "terraingrid.hpp"
 
-#include <OpenThreads/Mutex>
+#include <mutex>
 
 namespace osg
 {
@@ -61,7 +61,7 @@ namespace Terrain
 
         std::vector<ChunkManager*> mChunkManagers;
 
-        OpenThreads::Mutex mQuadTreeMutex;
+        std::mutex mQuadTreeMutex;
         bool mQuadTreeBuilt;
         float mLodFactor;
         int mVertexLodMod;
diff --git a/extern/osg-ffmpeg-videoplayer/videostate.cpp b/extern/osg-ffmpeg-videoplayer/videostate.cpp
index 014c5c4f55..c176fe0f29 100644
--- a/extern/osg-ffmpeg-videoplayer/videostate.cpp
+++ b/extern/osg-ffmpeg-videoplayer/videostate.cpp
@@ -3,6 +3,8 @@
 #include <algorithm>
 #include <cassert>
 #include <iostream>
+#include <thread>
+#include <chrono>
 
 #include <osg/Texture2D>
 
@@ -95,14 +97,14 @@ void PacketQueue::put(AVPacket *pkt)
     this->last_pkt = pkt1;
     this->nb_packets++;
     this->size += pkt1->pkt.size;
-    this->cond.signal();
+    this->cond.notify_one();
 
     this->mutex.unlock();
 }
 
 int PacketQueue::get(AVPacket *pkt, VideoState *is)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(this->mutex);
+    std::unique_lock<std::mutex> lock(this->mutex);
     while(!is->mQuit)
     {
         AVPacketList *pkt1 = this->first_pkt;
@@ -122,7 +124,7 @@ int PacketQueue::get(AVPacket *pkt, VideoState *is)
 
         if(this->flushing)
             break;
-        this->cond.wait(&this->mutex);
+        this->cond.wait(lock);
     }
 
     return -1;
@@ -131,7 +133,7 @@ int PacketQueue::get(AVPacket *pkt, VideoState *is)
 void PacketQueue::flush()
 {
     this->flushing = true;
-    this->cond.signal();
+    this->cond.notify_one();
 }
 
 void PacketQueue::clear()
@@ -226,7 +228,7 @@ void VideoState::video_display(VideoPicture *vp)
 
 void VideoState::video_refresh()
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(this->pictq_mutex);
+    std::lock_guard<std::mutex> lock(this->pictq_mutex);
     if(this->pictq_size == 0)
         return;
 
@@ -238,7 +240,7 @@ void VideoState::video_refresh()
         this->pictq_rindex = (pictq_rindex+1) % VIDEO_PICTURE_ARRAY_SIZE;
         this->frame_last_pts = vp->pts;
         this->pictq_size--;
-        this->pictq_cond.signal();
+        this->pictq_cond.notify_one();
     }
     else
     {
@@ -268,7 +270,7 @@ void VideoState::video_refresh()
         // update queue for next picture
         this->pictq_size--;
         this->pictq_rindex = (this->pictq_rindex+1) % VIDEO_PICTURE_ARRAY_SIZE;
-        this->pictq_cond.signal();
+        this->pictq_cond.notify_one();
     }
 }
 
@@ -279,9 +281,9 @@ int VideoState::queue_picture(AVFrame *pFrame, double pts)
 
     /* wait until we have a new pic */
     {
-        OpenThreads::ScopedLock<OpenThreads::Mutex> lock(this->pictq_mutex);
+        std::unique_lock<std::mutex> lock(this->pictq_mutex);
         while(this->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE && !this->mQuit)
-            this->pictq_cond.wait(&this->pictq_mutex, 1);
+            this->pictq_cond.wait_for(lock, std::chrono::milliseconds(1));
     }
     if(this->mQuit)
         return -1;
@@ -340,16 +342,21 @@ double VideoState::synchronize_video(AVFrame *src_frame, double pts)
     return pts;
 }
 
-class VideoThread : public OpenThreads::Thread
+class VideoThread
 {
 public:
     VideoThread(VideoState* self)
         : mVideoState(self)
+        , mThread([this] { run(); })
     {
-        start();
     }
 
-    virtual void run()
+    ~VideoThread()
+    {
+        mThread.join();
+    }
+
+    void run()
     {
         VideoState* self = mVideoState;
         AVPacket pkt1, *packet = &pkt1;
@@ -408,18 +415,24 @@ public:
 
 private:
     VideoState* mVideoState;
+    std::thread mThread;
 };
 
-class ParseThread : public OpenThreads::Thread
+class ParseThread
 {
 public:
     ParseThread(VideoState* self)
         : mVideoState(self)
+        , mThread([this] { run(); })
+    {
+    }
+
+    ~ParseThread()
     {
-        start();
+        mThread.join();
     }
 
-    virtual void run()
+    void run()
     {
         VideoState* self = mVideoState;
 
@@ -503,7 +516,7 @@ public:
                 if((self->audio_st && self->audioq.size > MAX_AUDIOQ_SIZE) ||
                    (self->video_st && self->videoq.size > MAX_VIDEOQ_SIZE))
                 {
-                    OpenThreads::Thread::microSleep(10 * 1000);
+                    std::this_thread::sleep_for(std::chrono::milliseconds(10));
                     continue;
                 }
 
@@ -534,6 +547,7 @@ public:
 
 private:
     VideoState* mVideoState;
+    std::thread mThread;
 };
 
 
@@ -712,12 +726,10 @@ void VideoState::deinit()
 
     if (this->parse_thread.get())
     {
-        this->parse_thread->join();
         this->parse_thread.reset();
     }
     if (this->video_thread.get())
     {
-        this->video_thread->join();
         this->video_thread.reset();
     }
 
@@ -816,7 +828,7 @@ ExternalClock::ExternalClock()
 
 void ExternalClock::setPaused(bool paused)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     if (mPaused == paused)
         return;
     if (paused)
@@ -830,7 +842,7 @@ void ExternalClock::setPaused(bool paused)
 
 uint64_t ExternalClock::get()
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     if (mPaused)
         return mPausedAt;
     else
@@ -839,7 +851,7 @@ uint64_t ExternalClock::get()
 
 void ExternalClock::set(uint64_t time)
 {
-    OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mMutex);
+    std::lock_guard<std::mutex> lock(mMutex);
     mTimeBase = av_gettime() - time;
     mPausedAt = time;
 }
diff --git a/extern/osg-ffmpeg-videoplayer/videostate.hpp b/extern/osg-ffmpeg-videoplayer/videostate.hpp
index 54519f428d..984050cd6f 100644
--- a/extern/osg-ffmpeg-videoplayer/videostate.hpp
+++ b/extern/osg-ffmpeg-videoplayer/videostate.hpp
@@ -6,10 +6,8 @@
 #include <vector>
 #include <memory>
 #include <string>
-
-#include <OpenThreads/Thread>
-#include <OpenThreads/Mutex>
-#include <OpenThreads/Condition>
+#include <mutex>
+#include <condition_variable>
 
 #include <osg/ref_ptr>
 namespace osg
@@ -64,7 +62,7 @@ struct ExternalClock
     uint64_t mPausedAt;
     bool mPaused;
 
-    OpenThreads::Mutex mMutex;
+    std::mutex mMutex;
 
     void setPaused(bool paused);
     uint64_t get();
@@ -83,8 +81,8 @@ struct PacketQueue {
     std::atomic<int> nb_packets;
     std::atomic<int> size;
 
-    OpenThreads::Mutex mutex;
-    OpenThreads::Condition cond;
+    std::mutex mutex;
+    std::condition_variable cond;
 
     void put(AVPacket *pkt);
     int get(AVPacket *pkt, VideoState *is);
@@ -164,8 +162,8 @@ struct VideoState {
     VideoPicture pictq[VIDEO_PICTURE_ARRAY_SIZE];
     AVFrame*     rgbaFrame; // used as buffer for the frame converted from its native format to RGBA
     int          pictq_size, pictq_rindex, pictq_windex;
-    OpenThreads::Mutex pictq_mutex;
-    OpenThreads::Condition pictq_cond;
+    std::mutex pictq_mutex;
+    std::condition_variable pictq_cond;
 
     std::unique_ptr<ParseThread> parse_thread;
     std::unique_ptr<VideoThread> video_thread;