ffserver.c:4150: error: Uninitialized Value
  The value read from video_enc.flags was never initialized.

ffserver.c:4150:17: 
4148.             if (stream) {
4149.                 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4150.                 video_enc.flags |= CODEC_FLAG_4MV;
                      ^
4151.             }
4152.         } else if (!strcasecmp(cmd, "AVOptionVideo") ||
