Started implementing sound time tracking so we can have NPCs' mouths move as they talk.

apps/openmw/mwbase/soundmanager.hpp

@@ -100,6 +100,9 @@ namespace MWBase
 
             virtual void stopSay(const MWWorld::Ptr &reference=MWWorld::Ptr()) = 0;
             ///< Stop an actor speaking
+	    
+	    virtual float getSoundPlayingTime(const MWWorld::Ptr &reference=MWWorld::Ptr()) = 0;
+	    ///< Get the amount of time this sound has been playing.
 
             virtual SoundPtr playTrack(const MWSound::DecoderPtr& decoder, PlayType type) = 0;
             ///< Play a 2D audio track, using a custom decoder

apps/openmw/mwsound/soundmanagerimp.cpp

@@ -244,6 +244,7 @@ namespace MWSound
             MWBase::SoundPtr sound = mOutput->playSound3D(filePath, objpos, 1.0f, basevol, 1.0f,
                                                           20.0f, 1500.0f, Play_Normal|Play_TypeVoice, 0);
             mActiveSounds[sound] = std::make_pair(ptr, std::string("_say_sound"));
+	    mSoundPlayTime[sound] = std::make_pair(ptr, 0);
         }
         catch(std::exception &e)
         {
@@ -261,7 +262,9 @@ namespace MWSound
             std::string filePath = "Sound/"+filename;
 
             MWBase::SoundPtr sound = mOutput->playSound(filePath, 1.0f, basevol, 1.0f, Play_Normal|Play_TypeVoice, 0);
-            mActiveSounds[sound] = std::make_pair(MWWorld::Ptr(), std::string("_say_sound"));
+	    MWWorld::Ptr ptr = MWWorld::Ptr();
+            mActiveSounds[sound] = std::make_pair(ptr, std::string("_say_sound"));
+	    mSoundPlayTime[sound] = std::make_pair(ptr, 0);
         }
         catch(std::exception &e)
         {
@@ -288,6 +291,18 @@ namespace MWSound
                 ++snditer;
         }
     }
+    
+    float SoundManager::getSoundPlayingTime(const MWWorld::Ptr &ptr)
+    {
+	typedef SoundPlayingTimeMap::iterator iter_type;
+	for(iter_type iterator = mSoundPlayTime.begin(); iterator != mSoundPlayTime.end(); iterator++)
+	{
+	    if (iterator->second.first == ptr)
+	      return iterator->second.second;
+	}
+	
+	return 0;
+    }
 
 
     MWBase::SoundPtr SoundManager::playTrack(const DecoderPtr& decoder, PlayType type)
@@ -602,8 +617,12 @@ namespace MWSound
         while(snditer != mActiveSounds.end())
         {
             if(!snditer->first->isPlaying())
-                mActiveSounds.erase(snditer++);
+	    {
-            else
+                mActiveSounds.erase(snditer);
+		mSoundPlayTime.erase(snditer->first);
+		snditer++;
+	    }
+	    else
             {
                 const MWWorld::Ptr &ptr = snditer->second.first;
                 if(!ptr.isEmpty())
@@ -626,6 +645,22 @@ namespace MWSound
                 ++snditer;
             }
         }
+        
+        // Update the total playing time for all sounds.
+        // This is primarily used for detecting amplitude for NPC mouth animation.
+        
+        typedef SoundPlayingTimeMap::iterator it_type;
+	for(it_type iterator = mSoundPlayTime.begin(); iterator != mSoundPlayTime.end(); iterator++)
+	{
+	    iterator->second.second += duration;
+	}
+	
+	std::cout << mSoundPlayTime.size() << " sounds currently playing." << std::endl;
+	typedef SoundPlayingTimeMap::iterator it_ty;
+	for(it_ty iterator = mSoundPlayTime.begin(); iterator != mSoundPlayTime.end(); iterator++)
+	{
+	    std::cout << iterator->first->getPlayType() << ": " << iterator->second.second << std::endl; 
+	}
     }
 
     void SoundManager::update(float duration)

apps/openmw/mwsound/soundmanagerimp.hpp

@@ -43,6 +43,10 @@ namespace MWSound
         typedef std::pair<MWWorld::Ptr,std::string> PtrIDPair;
         typedef std::map<MWBase::SoundPtr,PtrIDPair> SoundMap;
         SoundMap mActiveSounds;
+	
+	typedef std::pair<MWWorld::Ptr, float> PtrFloatPair;
+	typedef std::map<MWBase::SoundPtr, PtrFloatPair> SoundPlayingTimeMap;
+	SoundPlayingTimeMap mSoundPlayTime;
 
         MWBase::SoundPtr mUnderwaterSound;
 
@@ -104,6 +108,9 @@ namespace MWSound
 
         virtual void stopSay(const MWWorld::Ptr &reference=MWWorld::Ptr());
         ///< Stop an actor speaking
+	
+	virtual float getSoundPlayingTime(const MWWorld::Ptr &reference=MWWorld::Ptr());
+	///< Get the amount of time this sound has been playing.
 
         virtual MWBase::SoundPtr playTrack(const DecoderPtr& decoder, PlayType type);
         ///< Play a 2D audio track, using a custom decoder