static ZTHREAD proc_video_thread (void *arg)
{
zbar_processor_t *proc = arg;
zbar_thread_t *thread = &proc->video_thread;
_zbar_mutex_lock(&proc->mutex);
_zbar_thread_init(thread);
zprintf(4, "spawned video thread\n");
while(thread->started) {
/* wait for video stream to be active */
while(thread->started && !proc->streaming)
_zbar_event_wait(&thread->notify, &proc->mutex, NULL);
if(!thread->started)
break;
/* blocking capture image from video */
_zbar_mutex_unlock(&proc->mutex);
zbar_image_t *img = zbar_video_next_image(proc->video);
_zbar_mutex_lock(&proc->mutex);
if(!img && !proc->streaming)
continue;
else if(!img)
/* FIXME could abort streaming and keep running? */
break;
/* acquire API lock */
_zbar_processor_lock(proc);
_zbar_mutex_unlock(&proc->mutex);
if(thread->started && proc->streaming)
_zbar_process_image(proc, img);
zbar_image_destroy(img);
_zbar_mutex_lock(&proc->mutex);
/* release API lock */
_zbar_processor_unlock(proc, 0);
}
thread->running = 0;
_zbar_event_trigger(&thread->activity);
_zbar_mutex_unlock(&proc->mutex);
return(0);
}
int zbar_process_image (zbar_processor_t *proc,
zbar_image_t *img)
{
int rc;
proc_enter(proc);
_zbar_mutex_unlock(&proc->mutex);
rc = 0;
if(!rc) {
zbar_image_scanner_enable_cache(proc->scanner, 0);
rc = _zbar_process_image(proc, img);
if(proc->streaming)
zbar_image_scanner_enable_cache(proc->scanner, 1);
}
_zbar_mutex_lock(&proc->mutex);
proc_leave(proc);
return(rc);
}
int zbar_process_image (zbar_processor_t *proc,
zbar_image_t *img)
{
proc_enter(proc);
_zbar_mutex_unlock(&proc->mutex);
int rc = 0;
if(img && proc->window)
rc = _zbar_processor_set_size(proc,
zbar_image_get_width(img),
zbar_image_get_height(img));
if(!rc) {
zbar_image_scanner_enable_cache(proc->scanner, 0);
rc = _zbar_process_image(proc, img);
if(proc->streaming)
zbar_image_scanner_enable_cache(proc->scanner, 1);
}
_zbar_mutex_lock(&proc->mutex);
proc_leave(proc);
return(rc);
}
