Hi...
If you're restting the sndbufpt to the beginning of your sound buffer each time
then 'k' will always be 0. So if the value pointed to by sndbufpt is 50000 and
sndstrP->sndbuffer is at 50000 then k = 50000 - 50000 will be 0. That's why I
wondered if this is your actual callback because it should've never made a
sound on any device. You're going to need to utilize your sndbufsize somewhere.
Oh, and you don't want the application messing around with any
variables/pointers while this callback is being called. You'll run into major
race-conditions.
void callback (struct sndstrtype *sndstrP, SndStreamRef strRef, void
*bufP,UInt32 *bsp)
{
UInt32 k=*(sndstrP->sndbufpt)-sndstrP->sndbuffer;
if(k>*bsp) k=*bsp;
else *bsp=k;
if(k)MemMove(bufP,sndstrP->sndbuffer,k);
*(sndstrP->sndbufpt)=sndstrP->sndbuffer;
}
struct sndstrtype{
char **sndbufpt; //ptr to ptr of the current buffer pos.
char *sndbuffer; //buffer pointer
char *sndbufsize;
} *sndstr;
David
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