csoundRewindScore does:

  fseek(((ENVIRON *)csound)->scfp_, 0, SEEK_SET);

but I guess performance is done after parsing and loading the score
so perhaps this should be called before that. Am I wrong?

Also, csoundScoreOffsetSeconds only affects a static
variable in csound.c

  static MYFLT csoundScoreOffsetSeconds_ = (MYFLT) 0.0;

  PUBLIC void csoundReset(void *csound)
  {
    ....
    csoundScoreOffsetSeconds_ = (MYFLT) 0.0;
  }

  PUBLIC void csoundSetScoreOffsetSeconds(void *csound, MYFLT offset)
  {
    csoundScoreOffsetSeconds_ = offset;
  }

  PUBLIC MYFLT csoundGetScoreOffsetSeconds(void *csound)
  {
    return csoundScoreOffsetSeconds_;
  }

so it's not a suprise that it wasn't forwarding my score.

Are there another ways to achieve the same? Is this planned for
the future? My goal is to synchronize a timeline in a UI with
csound performance, allowing rewind, forwarding, etc.

Thank you in advance,
Carlos

> It may be that these functions only work for VST hosts. I'll look into it and change it if possible.
> 
> -----Original Message-----
> From: Carlos Pita <carlosjosepita@yahoo.com.ar>
> Sent: Mar 11, 2005 5:32 AM
> To: csound-devel@lists.sourceforge.net
> Subject: [Cs-dev] Can't rewind the score
> 
> Hi!
> 
> I can neither advance nor rewind the score from the csound API.
> In the following example, soundSetScoreOffsetSeconds
> and csoundRewindScore do nothing, I mean the score is
> performed from beginning to end just one time. I've also
> tried setting csoundSetScorePending to 1 although I don't
> understand very well which is the point of this function.
> Anyway, the results are the same. What am I doing wrong?
> 
> Thank you in advance,
> Carlos
> 
> test.c -----------------------------------------------------------------------------------
> 
> #include <csound.h>
> 
> int main()
> {
>    char *argv[] = { "csound", "-d", "-o", "dac", "test.orc", "test.sco" };
>    int argc = 6;
> 
>    void *csound = csoundCreate(0);
>    csoundCompile(csound, argc, argv);
> 
>    csoundSetScoreOffsetSeconds(csound, 1);
>    while(!csoundPerformKsmps(csound)) {
>       if(csoundGetScoreTime(csound) > 6) break;
>    }
>    csoundRewindScore(csound);
>    while(!csoundPerformKsmps(csound));
> 
>    csoundDestroy(csound);
> 
>    return 0;
> }
> 
> 
> test.orc --------------------------------------------------------------------------------
> 
> sr      = 44100
> kr      = 4410
> ksmps   = 10
> nchnls  = 1
> 
>         instr   1
> 
> a1      oscil     10000,     p4,     1
>         out       a1
> 
>         endin
> 
> test.sco ------------------------------------------------------------------------------
> 
> f 1 0 4096 10 1
> 
> i1     0     1     440
> i1     2     1     660
> i1     4     1     880
> 
> e
> 
> 
> 
> 
> 
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