OPJ_UINT32 *output_marker,
struct opj_event_mgr * p_manager );
+/**
+ * Reads a MCT marker (Multiple Component Transform)
+ *
+ * @param p_header_data the data contained in the MCT box.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_header_size the size of the data contained in the MCT marker.
+ * @param p_manager the user event manager.
+*/
+static opj_bool j2k_read_mct ( opj_j2k_v2_t *p_j2k,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ struct opj_event_mgr * p_manager );
+
+
/**
* Copy the image header from the jpeg2000 codec into an external image_header
*
{(OPJ_PROG_ORDER)-1, ""}
};
+/**
+ * FIXME DOC
+ */
+const OPJ_UINT32 MCT_ELEMENT_SIZE [] =
+{
+ 2,
+ 4,
+ 4,
+ 8
+};
+
typedef struct opj_dec_memory_marker_handler
{
/** marker value */
{J2K_MS_SOP, 0, 0},
{J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg_v2},
{J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com_v2},
-#ifdef TODO_MS /* FIXME */
{J2K_MS_MCT, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mct},
- {J2K_MS_CBD, J2K_STATE_MH , j2k_read_cbd},
+ /*FIXME MSD {J2K_MS_CBD, J2K_STATE_MH , j2k_read_cbd},
{J2K_MS_MCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mcc},
- {J2K_MS_MCO, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mco},
-#endif
+ {J2K_MS_MCO, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mco}, */
#ifdef USE_JPWL
#ifdef TODO_MS /* FIXME */
{J2K_MS_EPC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epc},
return e;
}
+
+/**
+ * Reads a MCT marker (Multiple Component Transform)
+ *
+ * @param p_header_data the data contained in the MCT box.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_header_size the size of the data contained in the MCT marker.
+ * @param p_manager the user event manager.
+*/
+opj_bool j2k_read_mct ( opj_j2k_v2_t *p_j2k,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ struct opj_event_mgr * p_manager )
+{
+ OPJ_UINT32 i;
+ opj_tcp_v2_t *l_tcp = 00;
+ OPJ_UINT32 l_tmp;
+ OPJ_UINT32 l_indix;
+ opj_mct_data_t * l_mct_data;
+
+ /* preconditions */
+ assert(p_header_data != 00);
+ assert(p_j2k != 00);
+
+ l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ?
+ &p_j2k->m_cp.tcps[p_j2k->m_current_tile_number] :
+ p_j2k->m_specific_param.m_decoder.m_default_tcp;
+
+ if (p_header_size < 2) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n");
+ return OPJ_FALSE;
+ }
+
+ /* first marker */
+ opj_read_bytes(p_header_data,&l_tmp,2); /* Zmct */
+ p_header_data += 2;
+ if (l_tmp != 0) {
+ opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge mct data within multiple MCT records\n");
+ return OPJ_TRUE;
+ }
+
+ if(p_header_size <= 6) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n");
+ return OPJ_FALSE;
+ }
+
+ /* Imct -> no need for other values, take the first, type is double with decorrelation x0000 1101 0000 0000*/
+ opj_read_bytes(p_header_data,&l_tmp,2); /* Imct */
+ p_header_data += 2;
+
+ l_indix = l_tmp & 0xff;
+ l_mct_data = l_tcp->m_mct_records;
+
+ for (i=0;i<l_tcp->m_nb_mct_records;++i) {
+ if (l_mct_data->m_index == l_indix) {
+ break;
+ }
+ ++l_mct_data;
+ }
+
+ /* NOT FOUND */
+ if (i == l_tcp->m_nb_mct_records) {
+ if (l_tcp->m_nb_mct_records == l_tcp->m_nb_max_mct_records) {
+ l_tcp->m_nb_max_mct_records += J2K_MCT_DEFAULT_NB_RECORDS;
+
+ l_tcp->m_mct_records = (opj_mct_data_t*)opj_realloc(l_tcp->m_mct_records,l_tcp->m_nb_max_mct_records * sizeof(opj_mct_data_t));
+ if(! l_tcp->m_mct_records) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n");
+ return OPJ_FALSE;
+ }
+
+ l_mct_data = l_tcp->m_mct_records + l_tcp->m_nb_mct_records;
+ memset(l_mct_data ,0,(l_tcp->m_nb_max_mct_records - l_tcp->m_nb_mct_records) * sizeof(opj_mct_data_t));
+ }
+
+ l_mct_data = l_tcp->m_mct_records + l_tcp->m_nb_mct_records;
+ }
+
+ if (l_mct_data->m_data) {
+ opj_free(l_mct_data->m_data);
+ l_mct_data->m_data = 00;
+ }
+
+ l_mct_data->m_index = l_indix;
+ l_mct_data->m_array_type = (J2K_MCT_ARRAY_TYPE)((l_tmp >> 8) & 3);
+ l_mct_data->m_element_type = (J2K_MCT_ELEMENT_TYPE)((l_tmp >> 10) & 3);
+
+ opj_read_bytes(p_header_data,&l_tmp,2); /* Ymct */
+ p_header_data+=2;
+ if (l_tmp != 0) {
+ opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple MCT markers\n");
+ return OPJ_TRUE;
+ }
+
+ p_header_size -= 6;
+
+ l_mct_data->m_data = (OPJ_BYTE*)opj_malloc(p_header_size);
+ if (! l_mct_data->m_data) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n");
+ return OPJ_FALSE;
+ }
+ memcpy(l_mct_data->m_data,p_header_data,p_header_size);
+
+ l_mct_data->m_data_size = p_header_size;
+ ++l_tcp->m_nb_mct_records;
+
+ return OPJ_TRUE;
+}
+
+
/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
#define J2K_MS_EPH 0xff92 /**< EPH marker value */
#define J2K_MS_CRG 0xff63 /**< CRG marker value */
#define J2K_MS_COM 0xff64 /**< COM marker value */
-
-#define J2K_MS_UNK 0 /**< UNKNOWN marker value */
-
-#ifdef TODO_MS /* FIXME */
#define J2K_MS_CBD 0xff78 /**< CBD marker value */
#define J2K_MS_MCC 0xff75 /**< MCC marker value */
#define J2K_MS_MCT 0xff74 /**< MCT marker value */
#define J2K_MS_MCO 0xff77 /**< MCO marker value */
-#endif
+
+#define J2K_MS_UNK 0 /**< UNKNOWN marker value */
/* UniPG>> */
#ifdef USE_JPWL
J2K_STATE_ERR = 0x8000 /**< the decoding process has encountered an error (FIXME warning V1 = 0x0080)*/
} J2K_STATUS;
+/**
+ * Type of elements storing in the MCT data
+ */
+typedef enum MCT_ELEMENT_TYPE
+{
+ MCT_TYPE_INT16 = 0, /** MCT data is stored as signed shorts*/
+ MCT_TYPE_INT32 = 1, /** MCT data is stored as signed integers*/
+ MCT_TYPE_FLOAT = 2, /** MCT data is stored as floats*/
+ MCT_TYPE_DOUBLE = 3 /** MCT data is stored as doubles*/
+} J2K_MCT_ELEMENT_TYPE;
+
+/**
+ * Type of MCT array
+ */
+typedef enum MCT_ARRAY_TYPE
+{
+ MCT_TYPE_DEPENDENCY = 0,
+ MCT_TYPE_DECORRELATION = 1,
+ MCT_TYPE_OFFSET = 2
+} J2K_MCT_ARRAY_TYPE;
+
/* ----------------------------------------------------------------------- */
/**
opj_tccp_t *tccps;
} opj_tcp_t;
-
-/**
- * Type of data for storing the MCT data
- */
-typedef enum MCT_ELEMENT_TYPE
-{
- MCT_TYPE_INT16 = 0, /** MCT data is stored as signed shorts*/
- MCT_TYPE_INT32 = 1, /** MCT data is stored as signed integers*/
- MCT_TYPE_FLOAT = 2, /** MCT data is stored as floats*/
- MCT_TYPE_DOUBLE = 3 /** MCT data is stored as doubles*/
-} J2K_MCT_ELEMENT_TYPE;
-
/**
- * Type of data for storing the MCT data
+ * FIXME DOC
*/
-typedef enum MCT_ARRAY_TYPE
-{
- MCT_TYPE_DEPENDENCY = 0,
- MCT_TYPE_DECORRELATION = 1,
- MCT_TYPE_OFFSET = 2
-} J2K_MCT_ARRAY_TYPE;
-
typedef struct opj_mct_data
{
J2K_MCT_ELEMENT_TYPE m_element_type;
}
opj_mct_data_t;
+/**
+ * FIXME DOC
+ */
typedef struct opj_simple_mcc_decorrelation_data
{
OPJ_UINT32 m_index;
projects / openjpeg / commitdiff