h264_refs: use named constant for setting frame_recovered

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/h264_refs.c

@@ -735,7 +735,7 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
     if(err >= 0 && h->long_ref_count==0 && h->short_ref_count<=2 && h->pps.ref_count[0]<=2 + (h->picture_structure != PICT_FRAME) && h->cur_pic_ptr->f.pict_type == AV_PICTURE_TYPE_I){
         h->cur_pic_ptr->recovered |= 1;
         if(!h->avctx->has_b_frames)
-            h->frame_recovered = 2;
+            h->frame_recovered |= FRAME_RECOVERED_SEI;
     }
 
     return (h->avctx->err_recognition & AV_EF_EXPLODE) ? err : 0;