PLC add_to_history called before write_buffer: after PLC the plc buffer may modify received speech for a soft transition back from synthesized speech

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@807 8eb893ce-cfd4-0310-b710-fb5ebe64c474

core/AmPlayoutBuffer.cpp

@@ -98,10 +98,10 @@ void AmPlayoutBuffer::write(u_int32_t ref_ts, u_int32_t rtp_ts,
 	  direct_write_buffer(last_ts, (ShortSample*)tmp, PCM16_B2S(l_size));
         }
     }
-  write_buffer(ref_ts, mapped_ts, buf, len);
-
   m_plcbuffer->add_to_history(buf, PCM16_S2B(len));
 
+  write_buffer(ref_ts, mapped_ts, buf, len);
+
   // update last_ts to end of received packet 
   // if not out-of-sequence
   if (ts_less()(last_ts, mapped_ts) || last_ts == mapped_ts)