ff_snow_frame_start(s);
av_frame_unref(avctx->coded_frame);
- av_frame_ref(avctx->coded_frame, s->current_picture);
+ ret = av_frame_ref(avctx->coded_frame, s->current_picture);
+ if (ret < 0)
+ return ret;
s->m.current_picture_ptr= &s->m.current_picture;
s->m.current_picture.f = s->current_picture;