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/* The name speaks for itself this filter is a dummy and will not blow
up regardless of what you do with it. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "af.h"
// Initialization and runtime control
static int control(struct af_instance_s* af, int cmd, void* arg)
{
switch(cmd){
case AF_CONTROL_REINIT:
memcpy(af->data,(af_data_t*)arg,sizeof(af_data_t));
af_msg(AF_MSG_VERBOSE,"[dummy] Was reinitialized: %iHz/%ich/%s\n",
af->data->rate,af->data->nch,af_fmt2str_short(af->data->format));
return AF_OK;
}
return AF_UNKNOWN;
}
// Deallocate memory
static void uninit(struct af_instance_s* af)
{
if(af->data)
free(af->data);
}
// Filter data through filter
static af_data_t* play(struct af_instance_s* af, af_data_t* data)
{
// Do something necessary to get rid of annoying warning during compile
if(!af)
af_msg(AF_MSG_ERROR,"EEEK: Argument af == NULL in af_dummy.c play().");
return data;
}
// Allocate memory and set function pointers
static int af_open(af_instance_t* af){
af->control=control;
af->uninit=uninit;
af->play=play;
af->mul.d=1;
af->mul.n=1;
af->data=malloc(sizeof(af_data_t));
if(af->data == NULL)
return AF_ERROR;
return AF_OK;
}
// Description of this filter
af_info_t af_info_dummy = {
"dummy",
"dummy",
"Anders",
"",
AF_FLAGS_REENTRANT,
af_open
};
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