Initial commit

added libraries:
opus
flac
libsndfile

updated:
libvorbis
libogg
openal

- Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.

Engine/lib/openal-soft/alc/backends/winmm.cpp

@@ -301,23 +301,16 @@ bool WinMMPlayback::reset()
         return false;
     }
 
-    uint chanmask{};
     if(mFormat.nChannels >= 2)
-    {
         mDevice->FmtChans = DevFmtStereo;
-        chanmask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
-    }
     else if(mFormat.nChannels == 1)
-    {
         mDevice->FmtChans = DevFmtMono;
-        chanmask = SPEAKER_FRONT_CENTER;
-    }
     else
     {
         ERR("Unhandled channel count: %d\n", mFormat.nChannels);
         return false;
     }
-    setChannelOrderFromWFXMask(chanmask);
+    setDefaultWFXChannelOrder();
 
     uint BufferSize{mDevice->UpdateSize * mFormat.nChannels * mDevice->bytesFromFmt()};
 
@@ -476,6 +469,8 @@ void WinMMCapture::open(const char *name)
     case DevFmtX51:
     case DevFmtX61:
     case DevFmtX71:
+    case DevFmtX714:
+    case DevFmtX3D71:
     case DevFmtAmbi3D:
         throw al::backend_exception{al::backend_error::DeviceError, "%s capture not supported",
             DevFmtChannelsString(mDevice->FmtChans)};