release/src/router/minidlna/image_utils.h

   1 /* Image manipulation functions
   2  *
   3  * Project : minidlna
   4  * Website : http://sourceforge.net/projects/minidlna/
   5  * Author  : Justin Maggard
   6  *
   7  * MiniDLNA media server
   8  * Copyright (C) 2009  Justin Maggard
   9  *
  10  * This file is part of MiniDLNA.
  11  *
  12  * MiniDLNA is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  *
  16  * MiniDLNA is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with MiniDLNA. If not, see <http://www.gnu.org/licenses/>.
  23  */
  24 #include <inttypes.h>
  25
  26 #define ROTATE_NONE 0x0
  27 #define ROTATE_90   0x1
  28 #define ROTATE_180  0x2
  29 #define ROTATE_270  0x4
  30
  31 typedef uint32_t pix;
  32
  33 typedef struct {
  34         int32_t width;
  35         int32_t height;
  36         pix     *buf;
  37 } image_s;
  38
  39 void
  40 image_free(image_s *pimage);
  41
  42 int
  43 image_get_jpeg_date_xmp(const char * path, char ** date);
  44
  45 int
  46 image_get_jpeg_resolution(const char * path, int * width, int * height);
  47
  48 image_s *
  49 image_new_from_jpeg(const char *path, int is_file, const uint8_t *ptr, int size, int scale, int resize);
  50
  51 image_s *
  52 image_resize(image_s * src_image, int32_t width, int32_t height);
  53
  54 unsigned char *
  55 image_save_to_jpeg_buf(image_s * pimage, int * size);
  56
  57 char *
  58 image_save_to_jpeg_file(image_s * pimage, char * path);