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/******************************************************************************#
# 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 #
# #
*******************************************************************************/
/******************************************************************************#
# #
# M/Jpeg decoding and frame capture taken from luvcview #
# #
*******************************************************************************/
#ifndef JPEG_DECODER_H
#define JPEG_DECODER_H
#include <inttypes.h>
#define HEADERFRAME1 0xaf
/*******Error codes *******/
#define ERR_NO_SOI 1
#define ERR_NOT_8BIT 2
#define ERR_HEIGHT_MISMATCH 3
#define ERR_WIDTH_MISMATCH 4
#define ERR_BAD_WIDTH_OR_HEIGHT 5
#define ERR_TOO_MANY_COMPPS 6
#define ERR_ILLEGAL_HV 7
#define ERR_QUANT_TABLE_SELECTOR 8
#define ERR_NOT_YCBCR_221111 9
#define ERR_UNKNOWN_CID_IN_SCAN 10
#define ERR_NOT_SEQUENTIAL_DCT 11
#define ERR_WRONG_MARKER 12
#define ERR_NO_EOI 13
#define ERR_BAD_TABLES 14
#define ERR_DEPTH_MISMATCH 15
/*
* init (m)jpeg decoder context
* args:
* width - image width
* height - image height
*
* asserts:
* none
*
* returns: error code (0 - E_OK)
*/
int jpeg_init_decoder(int width, int height);
/*
* jpeg decode
* args:
* out_buf - pointer to picture data ( decoded image - yuyv format)
* in_buf - pointer to input data ( compressed jpeg )
* size - picture size
*
* asserts:
* out_buf not null
* in_buf not null
*
* returns: error code (0 - OK)
*/
int jpeg_decode(uint8_t *out_buf, uint8_t *in_buf, int size);
/*
* close (m)jpeg decoder context
* args:
* none
*
* asserts:
* none
*
* returns: none
*/
void jpeg_close_decoder();
#endif
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