/******************************************************************************#
#           guvcview              http://guvcview.sourceforge.net              #
#                                                                              #
#           Paulo Assis <pj.assis@gmail.com>                                   #
#                                                                              #
# This program is free software; you can redistribute it and/or modify         #
# it under the terms of the GNU General Public License as published by         #
# the Free Software Foundation; either version 2 of the License, or            #
# (at your option) any later version.                                          #
#                                                                              #
# This program is distributed in the hope that it will be useful,              #
# but WITHOUT ANY WARRANTY; without even the implied warranty of               #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                #
# GNU General Public License for more details.                                 #
#                                                                              #
# You should have received a copy of the GNU General Public License            #
# along with this program; if not, write to the Free Software                  #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA    #
#                                                                              #
*******************************************************************************/

/******************************************************************************#
#                                                                              #
#  dct for Jpeg encoder                                                        #
#                                                                              #
#  Adapted for linux, Paulo Assis, 2007 <pj.assis@gmail.com>                   #
*******************************************************************************/

#ifndef DCT_H
#define DCT_H

#include <inttypes.h>
#include <sys/types.h>

/*
 * Level shifting to get 8 bit SIGNED values for the data
 * args:
 *    data - pointer to data
 *
 * asserts:
 *    none
 *
 * returns: none
 */
void levelshift(int16_t *const data);

/*
 * DCT for One block(8x8)
 * args:
 *    data- pointer to data
 *
 * asserts:
 *    none
 *
 * returns: none
 */
void DCT(int16_t *data);

#endif
