Adam

I am working on an object that processes some audio and based upon that processing, occasionally sends a bang to an outlet. I am trying to send out the bang but the DSP process routine does not recognise the struct object that contains the variable used in outletting a bang. So for the code below I get an error saying that 'mo' (my struct object variable) has not been declared in this scope:

t_float *input = (t_float*)(parameters[2]);

t_float *output = (t_float*)(parameters[3]);

///////////////////////////////////////////////

////////////// Some Processing ////////////////

outlet_bang(mo->output); /* Problem line */

I can create a normal function that will for example output a bang when a bang is received in an inlet. This works fine. It is only in the DSP processing routine that I have a problem.

I would be very appreciative of any help,

t_int* Perform(t_int *parameters) {
   long     pcount  = (long)    (parameters[1]);
   t_float *input   = (t_float*)(parameters[2]);
   t_float *output  = (t_float*)(parameters[3]);
   long     count   = (long)    (parameters[4]);
   long     i;
   float frame[count];

   for (i=0; i
      frame[i] = input[i];
   }

   ///////////////////////////////////////////////
   ////////////// Some Processing ////////////////
   ///////////////////////////////////////////////

   outlet_bang(mo->output);  /* Problem line */

   for (i=0; i
      output[i] = frame[i];
   }

how-to-send-a-bang-to-an-outlet-from-dsp-process-routine-using-c-code

You need to make sure that your mo struct is passed as one of your 

t_int * parameters into your Perform routine.

On Jan 8, 2008, at 7:35 AM, Adam Stark wrote:

> I am working on an object that processes some audio and based upon 

> that processing, occasionally sends a bang to an outlet. I am 

> trying to send out the bang but the DSP process routine does not 

> recognise the struct object that contains the variable used in 

> outletting a bang. So for the code below I get an error saying that 

> 'mo' (my struct object variable) has not been declared in this scope:

> t_float *input = (t_float*)(parameters[2]);

> t_float *output = (t_float*)(parameters[3]);

> ///////////////////////////////////////////////

> ////////////// Some Processing ////////////////

> outlet_bang(mo->output); /* Problem line */

> I can create a normal function that will for example output a bang 

> when a bang is received in an inlet. This works fine. It is only in 

> the DSP processing routine that I have a problem.

> I would be very appreciative of any help,

You need to make sure that your mo struct is passed as one of your  
t_int * parameters into your Perform routine.

>
> Hi,
>
> I am working on an object that processes some audio and based upon  
> that processing, occasionally sends a bang to an outlet. I am  
> trying to send out the bang but the DSP process routine does not  
> recognise the struct object that contains the variable used in  
> outletting a bang. So for the code below I get an error saying that  
> 'mo' (my struct object variable) has not been declared in this scope:
>
> t_int* Perform(t_int *parameters) {
>    long     pcount  = (long)    (parameters[1]);
>    t_float *input   = (t_float*)(parameters[2]);
>    t_float *output  = (t_float*)(parameters[3]);
>    long     count   = (long)    (parameters[4]);
>    long     i;
>    float frame[count];
>
>    for (i=0; i
>       frame[i] = input[i];
>    }
>
>    ///////////////////////////////////////////////
>    ////////////// Some Processing ////////////////
>    ///////////////////////////////////////////////
>
>    outlet_bang(mo->output);  /* Problem line */
>
>
>    for (i=0; i
>       output[i] = frame[i];
>    }
>
>    return parameters+pcount+1;
> }
>
> I can create a normal function that will for example output a bang  
> when a bang is received in an inlet. This works fine. It is only in  
> the DSP processing routine that I have a problem.
>
> I would be very appreciative of any help,
>
> Thanks,
>
> Adam

Quote: Adam wrote on Tue, 08 January 2008 08:35

> I am working on an object that processes some audio and based upon that processing, occasionally sends a bang to an outlet. I am trying to send out the bang but the DSP process routine does not recognise the struct object that contains the variable used in outletting a bang.

Actually this is not recommended by c74 at all (sending messages to outlets in the perform routine). I was sure this is mentioned in the writing externals pdf somewhere, but I can't find it, so probably I remember it from the below thread. This instance relates to floats not bangs, but is otherwise the same principle:

https://cycling74.com/forums/index.php?t=msg&goto=103347&rid=0&srch=outlet+perform+routine#msg_103347

> I am working on an object that processes some audio and based upon that processing, occasionally sends a bang to an outlet. I am trying to send out the bang but the DSP process routine does not recognise the struct object that contains the variable used in outletting a bang. 

How to send a bang to an outlet from DSP process routine (using C code))