使用类似于此函数的函数，您需要为if（user==admin）和if（post type==\'some-post-type\'）设置条件：

function wpse_16722_type_upload_dir( $args ) {

    // Get the current post_id
    $id = ( isset( $_REQUEST[\'post_id\'] ) ? $_REQUEST[\'post_id\'] : \'\' );

    if( $id ) {    
       // Set the new path depends on current post_type
       $newdir = \'/\' . get_post_type( $id );

       $args[\'path\']    = str_replace( $args[\'subdir\'], \'\', $args[\'path\'] );         //remove default subdir
       $args[\'url\']     = str_replace( $args[\'subdir\'], \'\', $args[\'url\'] );      
       $args[\'subdir\']  = $newdir;
       $args[\'path\']   .= $newdir; 
       $args[\'url\']    .= $newdir; 
    }
    return $args;
}
add_filter( \'upload_dir\', \'wpse_16722_type_upload_dir\' );