-opj_image_t* opj_jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_codestream_info_t *cstr_info)
-{
- opj_common_ptr cinfo;
- opj_image_t *image = NULL;
- opj_jp2_color_t color;
-
- if(!jp2 || !cio)
- {
- return NULL;
- }
- memset(&color, 0, sizeof(opj_jp2_color_t));
- cinfo = jp2->cinfo;
-
-/* JP2 decoding */
- if(!jp2_read_struct(jp2, cio, &color))
- {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n");
- return NULL;
- }
-
-/* J2K decoding */
- image = j2k_decode(jp2->j2k, cio, cstr_info);
-
- if(!image)
- {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n");
- return NULL;
- }
-
- if (!jp2->ignore_pclr_cmap_cdef){
-
- /* Set Image Color Space */
- if (jp2->enumcs == 16)
- image->color_space = CLRSPC_SRGB;
- else if (jp2->enumcs == 17)
- image->color_space = CLRSPC_GRAY;
- else if (jp2->enumcs == 18)
- image->color_space = CLRSPC_SYCC;
- else
- image->color_space = CLRSPC_UNKNOWN;