opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format) {
opj_cinfo_t *cinfo = (opj_cinfo_t*)opj_malloc(sizeof(opj_cinfo_t));
if(!cinfo) return NULL;
cinfo->is_decompressor = false;
switch(format) {
case CODEC_J2K:
/* get a J2K coder handle */
cinfo->j2k_handle = (void*)j2k_create_compress((opj_common_ptr)cinfo);
if(!cinfo->j2k_handle) {
opj_free(cinfo);
return NULL;
}
break;
case CODEC_JP2:
/* get a JP2 coder handle */
cinfo->jp2_handle = (void*)jp2_create_compress((opj_common_ptr)cinfo);
if(!cinfo->jp2_handle) {
opj_free(cinfo);
return NULL;
}
break;
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
opj_free(cinfo);
return NULL;
}
cinfo->codec_format = format;
return cinfo;
}
opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT p_format)
{
opj_codec_private_t *l_info = 00;
l_info = (opj_codec_private_t*)opj_calloc(1, sizeof(opj_codec_private_t));
if
(!l_info)
{
return 00;
}
memset(l_info, 0, sizeof(opj_codec_private_t));
l_info->is_decompressor = 0;
switch
(p_format)
{
case CODEC_J2K:
l_info->m_codec_data.m_compression.opj_encode = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr * )) j2k_encode;
l_info->m_codec_data.m_compression.opj_end_compress = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr *)) j2k_end_compress;
l_info->m_codec_data.m_compression.opj_start_compress = (bool (*) (void *,struct opj_stream_private *,struct opj_image * , struct opj_event_mgr *)) j2k_start_compress;
l_info->m_codec_data.m_compression.opj_write_tile = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr *)) j2k_write_tile;
l_info->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) j2k_destroy;
l_info->m_codec_data.m_compression.opj_setup_encoder = (void (*) (void *,opj_cparameters_t *,struct opj_image *, struct opj_event_mgr * )) j2k_setup_encoder;
l_info->m_codec = j2k_create_compress();
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_JP2:
/* get a JP2 decoder handle */
l_info->m_codec_data.m_compression.opj_encode = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr * )) jp2_encode;
l_info->m_codec_data.m_compression.opj_end_compress = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr *)) jp2_end_compress;
l_info->m_codec_data.m_compression.opj_start_compress = (bool (*) (void *,struct opj_stream_private *,struct opj_image * , struct opj_event_mgr *)) jp2_start_compress;
l_info->m_codec_data.m_compression.opj_write_tile = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr *)) jp2_write_tile;
l_info->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) jp2_destroy;
l_info->m_codec_data.m_compression.opj_setup_encoder = (void (*) (void *,opj_cparameters_t *,struct opj_image *, struct opj_event_mgr * )) jp2_setup_encoder;
l_info->m_codec = jp2_create(false);
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_UNKNOWN:
case CODEC_JPT:
default:
opj_free(l_info);
return 00;
}
set_default_event_handler(&(l_info->m_event_mgr));
return (opj_codec_t*) l_info;
}
opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo) {
opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
if(jp2) {
jp2->cinfo = cinfo;
/* create the J2K codec */
jp2->j2k = j2k_create_compress(cinfo);
if(jp2->j2k == NULL) {
jp2_destroy_compress(jp2);
return NULL;
}
}
return jp2;
}