void static_image_process(MSFilter *f){
SIData *d=(SIData*)f->data;
/*output a frame every second*/
if ((f->ticker->time - d->lasttime>1000) || d->lasttime==0){
if (d->pic) {
mblk_t *o=dupb(d->pic);
/*prevent mirroring at the output*/
mblk_set_precious_flag(o,1);
ms_queue_put(f->outputs[0],o);
}
d->lasttime=f->ticker->time;
}
}
void static_image_process(MSFilter *f){
SIData *d=(SIData*)f->data;
int frame_interval=(int)(1000/d->fps);
/*output a frame whenever needed, i.e. respect the FPS parameter */
if ((f->ticker->time - d->lasttime>frame_interval) || d->lasttime==0){
ms_mutex_lock(&f->lock);
if (d->pic) {
mblk_t *o=dupmsg(d->pic);
/*prevent mirroring at the output*/
mblk_set_precious_flag(o,1);
ms_queue_put(f->outputs[0],o);
}
ms_filter_unlock(f);
d->lasttime=f->ticker->time;
}
}
static void v4w_process(MSFilter * obj){
V4wState *s=(V4wState*)obj->data;
mblk_t *m;
uint32_t timestamp;
int cur_frame;
if (s->frame_count==-1){
s->start_time=obj->ticker->time;
s->frame_count=0;
}
cur_frame=(int)((obj->ticker->time-s->start_time)*s->fps/1000.0);
if (cur_frame>s->frame_count){
mblk_t *om=NULL;
ms_mutex_lock(&s->mutex);
/*keep the most recent frame if several frames have been captured */
if (s->rotregvalue!=0){
while((m=getq(&s->rq))!=NULL){
if (om!=NULL) freemsg(om);
om=m;
}
}else {
mblk_t *nowebcam = v4w_make_nowebcam(s);
if (nowebcam!=NULL){
om=dupmsg(nowebcam);
mblk_set_precious_flag(om,1);
}
}
ms_mutex_unlock(&s->mutex);
if (om!=NULL){
timestamp=(uint32_t)obj->ticker->time*90;/* rtp uses a 90000 Hz clockrate for video*/
mblk_set_timestamp_info(om,timestamp);
ms_queue_put(obj->outputs[0],om);
/*ms_message("picture sent");*/
}
s->frame_count++;
}
}
static void v4l_process(MSFilter * obj){
V4lState *s=(V4lState*)obj->data;
uint32_t timestamp;
int cur_frame;
if (s->frame_count==-1){
s->start_time=obj->ticker->time;
s->frame_count=0;
}
cur_frame=((obj->ticker->time-s->start_time)*s->fps/1000.0);
if (cur_frame>=s->frame_count){
mblk_t *om=NULL;
ms_mutex_lock(&s->mutex);
/*keep the most recent frame if several frames have been captured */
if (s->fd!=-1){
om=getq(&s->rq);
}else{
if (s->usemire){
om=dupmsg(v4l_make_mire(s));
}else {
mblk_t *tmpm=v4l_make_nowebcam(s);
if (tmpm) {
om=dupmsg(tmpm);
mblk_set_precious_flag(om,1);
}
}
}
ms_mutex_unlock(&s->mutex);
if (om!=NULL){
timestamp=obj->ticker->time*90;/* rtp uses a 90000 Hz clockrate for video*/
mblk_set_timestamp_info(om,timestamp);
mblk_set_marker_info(om,TRUE);
ms_queue_put(obj->outputs[0],om);
/*ms_message("picture sent");*/
s->frame_count++;
}
}else flushq(&s->rq,0);
}
