static void dec_process(MSFilter *f){
DecState *s=(DecState*)f->data;
int nbytes = 0;
mblk_t *im;
mblk_t *om;
const int frsz= BV16_FRAME_SIZE * 2 * 4;
int i,frames;
while((im=ms_queue_get(f->inputs[0]))!=NULL){
om=allocb(frsz,0);
nbytes=msgdsize(im);
frames = nbytes/(BV16_CODE_SIZE * 2);
//ms_error("read bv16 data, size %d, frame %d",msgdsize(im),frames);
for(i=0;i<frames;i++){
if (mblk_get_precious_flag(im)) { //¶ª°üÒþ±Î
bv16_fillin(s->dec, (int16_t *) om->b_wptr, BV16_CODE_SIZE);
} else {
bv16_decode(s->dec, (int16_t *) om->b_wptr, (uint8_t *) im->b_rptr, BV16_CODE_SIZE);
}
im->b_rptr += 10;
om->b_wptr += 80;
}
ms_queue_put(f->outputs[0],om);
freemsg(im);
}
}
static switch_status_t switch_bv16_decode(switch_codec_t *codec,
switch_codec_t *other_codec,
void *encoded_data,
uint32_t encoded_data_len,
uint32_t encoded_rate, void *decoded_data, uint32_t *decoded_data_len, uint32_t *decoded_rate,
unsigned int *flag)
{
struct bv16_context *context = codec->private_info;
if (!context) {
return SWITCH_STATUS_FALSE;
}
if ((*flag & SFF_PLC)) {
*decoded_data_len = (2 * bv16_fillin(context->decoder_object, (int16_t *) decoded_data, encoded_data_len));
} else {
*decoded_data_len = (2 * bv16_decode(context->decoder_object, (int16_t *) decoded_data, (uint8_t *) encoded_data, encoded_data_len));
}
return SWITCH_STATUS_SUCCESS;
}