static void alaw_enc_process(MSFilter *obj){
AlawEncData *dt=(AlawEncData*)obj->data;
MSBufferizer *bz=dt->bz;
uint8_t buffer[2240];
int frame_per_packet=2;
int size_of_pcm=320;
mblk_t *m;
if (dt->ptime>=10)
{
frame_per_packet = dt->ptime/10;
}
if (frame_per_packet<=0)
frame_per_packet=1;
if (frame_per_packet>14) /* 7*20 == 140 ms max */
frame_per_packet=14;
size_of_pcm = 160*frame_per_packet; /* ex: for 20ms -> 160*2==320 */
while((m=ms_queue_get(obj->inputs[0]))!=NULL){
ms_bufferizer_put(bz,m);
}
while (ms_bufferizer_read(bz,buffer,size_of_pcm)==size_of_pcm){
mblk_t *o=allocb(size_of_pcm/2,0);
int i;
for (i=0;i<size_of_pcm/2;i++){
*o->b_wptr=s16_to_alaw(((int16_t*)buffer)[i]);
o->b_wptr++;
}
mblk_set_timestamp_info(o,dt->ts);
dt->ts+=size_of_pcm/2;
ms_queue_put(obj->outputs[0],o);
}
}
static void alaw_encode(short *sample, unsigned char *buf, size_t n)
{
for (; n > 0; --n)
*(buf++) = s16_to_alaw(*(sample++));
}
