avcodec/mpegvideo_enc: move ff_side_data_set_encoder_stats() call to after the vbv retry code

This ensures the data matches the final values
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/mpegvideo_enc.c

@@ -1789,8 +1789,6 @@ vbv_retry:
 
         frame_end(s);
 
-        ff_side_data_set_encoder_stats(pkt, s->current_picture.f->quality, NULL, 0, s->pict_type);
-
         if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
             ff_mjpeg_encode_picture_trailer(&s->pb, s->header_bits);
 
@@ -1833,6 +1831,8 @@ vbv_retry:
             av_assert0(s->avctx->rc_max_rate);
         }
 
+        ff_side_data_set_encoder_stats(pkt, s->current_picture.f->quality, NULL, 0, s->pict_type);
+
         if (s->avctx->flags & AV_CODEC_FLAG_PASS1)
             ff_write_pass1_stats(s);