static void vad_dtx_process(MSFilter *f){
VadDtxContext *ctx=(VadDtxContext*)f->data;
mblk_t *m;
while((m=ms_queue_get(f->inputs[0]))!=NULL){
update_energy(ctx,(int16_t*)m->b_rptr, (m->b_wptr - m->b_rptr) / 2, f->ticker->time);
if (ortp_extremum_get_current(&ctx->max)<silence_threshold){
if (!ctx->silence_mode){
MSCngData cngdata={0};
cngdata.datasize=1; /*only noise level*/
cngdata.data[0]=0; /*noise level set to zero for the moment*/
ms_message("vad_dtx_process(): silence period detected.");
ctx->silence_mode=1;
ms_filter_notify(f, MS_VAD_DTX_NO_VOICE, &cngdata);
}
}else{
if (ctx->silence_mode){
ms_message("vad_dtx_process(): silence period finished.");
ctx->silence_mode=0;
ms_filter_notify(f, MS_VAD_DTX_VOICE, NULL);
}
}
ms_queue_put(f->outputs[0],m);
}
}
static int volume_get_max(MSFilter *f, void *arg){
float *farg=(float*)arg;
Volume *v=(Volume*)f->data;
*farg=linear_to_db(ortp_extremum_get_current(&v->max));
return 0;
}
