int zbar_processor_user_wait (zbar_processor_t *proc,
int timeout)
{
int rc;
proc_enter(proc);
_zbar_mutex_unlock(&proc->mutex);
rc = -1;
if(proc->visible || proc->streaming || timeout >= 0) {
zbar_timer_t timer;
rc = _zbar_processor_wait(proc, EVENT_INPUT,
_zbar_timer_init(&timer, timeout));
}
if(!proc->visible)
rc = err_capture(proc, SEV_WARNING, ZBAR_ERR_CLOSED, __func__,
"display window not available for input");
if(rc > 0)
rc = proc->input;
_zbar_mutex_lock(&proc->mutex);
proc_leave(proc);
return(rc);
}
int zbar_process_one (zbar_processor_t *proc,
int timeout)
{
proc_enter(proc);
int streaming = proc->streaming;
_zbar_mutex_unlock(&proc->mutex);
int rc = 0;
if(!proc->video) {
rc = err_capture(proc, SEV_ERROR, ZBAR_ERR_INVALID, __func__,
"video input not initialized");
goto done;
}
if(!streaming) {
rc = zbar_processor_set_active(proc, 1);
if(rc)
goto done;
}
zbar_timer_t timer;
rc = _zbar_processor_wait(proc, EVENT_OUTPUT,
_zbar_timer_init(&timer, timeout));
if(!streaming && zbar_processor_set_active(proc, 0))
rc = -1;
done:
_zbar_mutex_lock(&proc->mutex);
proc_leave(proc);
return(rc);
}