avserver.c:4422: error: Uninitialized Value
  The value read from video_enc.flags was never initialized.

avserver.c:4422:17: 
4420.             if (stream) {
4421.                 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4422.                 video_enc.flags |= CODEC_FLAG_4MV;
                      ^
4423.             }
4424.         } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
