use unix usleep (#1143)

sflphone-common/src/audio/audiortp.cpp

@@ -616,8 +616,10 @@ AudioRtpRTX::run () {
       // Thread::sleep(TimerPort::getTimer());
       // TimerPort::incTimer(_layerFrameSize); // 'frameSize' ms
 
-      Thread::sleep(TimerPort::getTimer());
-      TimerPort::incTimer(5); // 'frameSize' ms
+      // Thread::sleep(TimerPort::getTimer());
+      // TimerPort::incTimer(5); // 'frameSize' ms
+
+      usleep(500);
       
     }
     

sflphone-common/src/audio/codecs/celtcodec.cpp

@@ -62,6 +62,8 @@ class Celt : public AudioCodec{
             enc = celt_encoder_create(mode);
             dec = celt_decoder_create(mode);
 
+            celt_encoder_ctl(enc,CELT_SET_COMPLEXITY(8));
+ 
         }
 
         ~Celt() 
@@ -85,7 +87,7 @@ class Celt : public AudioCodec{
         virtual int codecEncode (unsigned char *dst, short *src, unsigned int size) 
         {
             int len = 0;
-            len = celt_encode(enc, (celt_int16_t *)src, NULL, dst, 128);
+            len = celt_encode(enc, (celt_int16_t *)src, (celt_int16_t *)src, dst, 128);
             // returns the number of bytes writen
             return len;
         }