Index: sl.h
 ===================================================================
 RCS file: /cvsroot/plib/plib/src/sl/sl.h,v
 retrieving revision 1.22
 diff -u -p -r1.22 sl.h
 --- sl.h	4 Jan 2003 02:55:55 -0000	1.22
 +++ sl.h	16 May 2003 09:04:21 -0000
 @@ -645,6 +645,7 @@ class slScheduler : public slDSP
    float safety_margin ;
  
    int mixer_buffer_size, mixer_gain ;
 +  float seconds_per_buffer;
  
    Uchar *mixer_buffer  ;
    Uchar *mixer_inputs [ SL_MAX_MIXERINPUTS + 1 ] ;
 Index: slScheduler.cxx
 ===================================================================
 RCS file: /cvsroot/plib/plib/src/sl/slScheduler.cxx,v
 retrieving revision 1.9
 diff -u -p -r1.9 slScheduler.cxx
 --- slScheduler.cxx	2 Sep 2002 06:05:47 -0000	1.9
 +++ slScheduler.cxx	16 May 2003 09:04:21 -0000
 @@ -84,6 +84,10 @@ void slScheduler::initBuffers ()
    setMaxConcurrent ( 0 );
  
    mixer_buffer_size = getDriverBufferSize () ;
 +  int div = 1;
 +  if ( getStereo() )     div *= 2 ;
 +  if ( getBps() == 16 )  div *= 2 ;
 +  seconds_per_buffer = (float)mixer_buffer_size / ( div * getRate() ) ;
  
    mixer_buffer = new Uchar [ mixer_buffer_size ] ;
    memset ( mixer_buffer, 0x80, mixer_buffer_size ) ;
 @@ -132,7 +136,7 @@ void slScheduler::realUpdate ( int dump_
    
    int i ;
  
 -  while ( secondsUsed() <= safety_margin )
 +  while ( secondsUsed() <= safety_margin && secondsRemaining() >= seconds_per_buffer )
    {
      slPlayer *psp [ SL_MAX_MIXERINPUTS ] ;
      int       pri [ SL_MAX_MIXERINPUTS ] ;
 @@ -174,7 +178,9 @@ void slScheduler::realUpdate ( int dump_
             ( mypri > pri[lowest] )
           )
        { /* Not enough room; get rid of someone */
 -        player[lowest] -> preempt ( mixer_buffer_size ) ;
 +        if ( player[lowest] != NULL )
 +          player[lowest] -> preempt ( mixer_buffer_size ) ;
 +
  	psp[lowest] = player[i] ;
  	pri[lowest] = mypri ;
          int j;