Add a method to play an audio track with a custom decoder

apps/openmw/mwbase/soundmanager.hpp

@@ -22,6 +22,8 @@ namespace MWWorld
 namespace MWSound
 {
     class Sound;
+    class Sound_Decoder;
+    typedef boost::shared_ptr<Sound_Decoder> DecoderPtr;
 }
 
 namespace MWBase
@@ -89,6 +91,9 @@ namespace MWBase
             virtual void stopSay(MWWorld::Ptr reference=MWWorld::Ptr()) = 0;
             ///< Stop an actor speaking
 
+            virtual SoundPtr playTrack(const MWSound::DecoderPtr& decoder) = 0;
+            ///< Play a 2D audio track, using a custom decoder
+
             virtual SoundPtr playSound(const std::string& soundId, float volume, float pitch,
                 int mode=Play_Normal) = 0;
             ///< Play a sound, independently of 3D-position

apps/openmw/mwsound/soundmanagerimp.cpp

@@ -275,6 +275,26 @@ namespace MWSound
     }
 
 
+    MWBase::SoundPtr SoundManager::playTrack(const DecoderPtr& decoder)
+    {
+        MWBase::SoundPtr track;
+        if(!mOutput->isInitialized())
+            return track;
+        try
+        {
+            float basevol = mMasterVolume;
+
+            track = mOutput->streamSound(decoder, basevol, 1.0f, Play_NoEnv);
+            track->mBaseVolume = basevol;
+            track->mFlags = Play_NoEnv;
+        }
+        catch(std::exception &e)
+        {
+            std::cout <<"Sound Error: "<<e.what()<< std::endl;
+        }
+        return track;
+    }
+
 
     MWBase::SoundPtr SoundManager::playSound(const std::string& soundId, float volume, float pitch, int mode)
     {

apps/openmw/mwsound/soundmanagerimp.hpp

@@ -22,8 +22,6 @@ namespace MWSound
     struct Sound_Decoder;
     class Sound;
 
-    typedef boost::shared_ptr<Sound_Decoder> DecoderPtr;
-
     enum Environment {
         Env_Normal,
         Env_Underwater
@@ -105,6 +103,9 @@ namespace MWSound
         virtual void stopSay(MWWorld::Ptr reference=MWWorld::Ptr());
         ///< Stop an actor speaking
 
+        virtual MWBase::SoundPtr playTrack(const DecoderPtr& decoder);
+        ///< Play a 2D audio track, using a custom decoder
+
         virtual MWBase::SoundPtr playSound(const std::string& soundId, float volume, float pitch, int mode=Play_Normal);
         ///< Play a sound, independently of 3D-position