@@ -89,7 +89,9 @@ static void * attribute_align_arg worker(void *v){

         pthread_mutex_unlock(&c->buffer_mutex);

         av_frame_free(&frame);

         if(got_packet) {

-            av_dup_packet(pkt);

+            int ret2 = av_dup_packet(pkt);

+            if (ret >= 0 && ret2 < 0)

+                ret = ret2;

         } else {

             pkt->data = NULL;

             pkt->size = 0;