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44 @brief Implementation of a tier-2 coding (packetization of code-block data) (T2)
48 /** @defgroup T2 T2 - Implementation of a tier-2 coding */
54 typedef struct opj_t2 {
56 /** Encoding: pointer to the src image. Decoding: pointer to the dst image. */
58 /** pointer to the image coding parameters */
62 /** @name Exported functions */
64 /* ----------------------------------------------------------------------- */
67 Encode the packets of a tile to a destination buffer
69 @param tileno number of the tile encoded
70 @param tile the tile for which to write the packets
71 @param maxlayers maximum number of layers
72 @param dest the destination buffer
73 @param p_data_written FIXME DOC
74 @param len the length of the destination buffer
75 @param cstr_info Codestream information structure
76 @param p_marker_info Marker information structure
77 @param tpnum Tile part number of the current tile
78 @param tppos The position of the tile part flag in the progression order
80 @param t2_mode If == THRESH_CALC In Threshold calculation ,If == FINAL_PASS Final pass
81 @param p_manager the user event manager
83 OPJ_BOOL opj_t2_encode_packets(opj_t2_t* t2,
88 OPJ_UINT32 * p_data_written,
90 opj_codestream_info_t *cstr_info,
91 opj_tcd_marker_info_t* p_marker_info,
96 opj_event_mgr_t *p_manager);
99 Decode the packets of a tile from a source buffer
100 @param tcd TCD handle
102 @param tileno number that identifies the tile for which to decode the packets
103 @param tile tile for which to decode the packets
105 @param p_data_read the source buffer
106 @param len length of the source buffer
107 @param cstr_info FIXME DOC
108 @param p_manager the user event manager
112 OPJ_BOOL opj_t2_decode_packets(opj_tcd_t* tcd,
115 opj_tcd_tile_t *tile,
117 OPJ_UINT32 * p_data_read,
119 opj_codestream_index_t *cstr_info,
120 opj_event_mgr_t *p_manager);
123 * Creates a Tier 2 handle
125 * @param p_image Source or destination image
126 * @param p_cp Image coding parameters.
127 * @return a new T2 handle if successful, NULL otherwise.
129 opj_t2_t* opj_t2_create(opj_image_t *p_image, opj_cp_t *p_cp);
133 @param t2 T2 handle to destroy
135 void opj_t2_destroy(opj_t2_t *t2);
137 /* ----------------------------------------------------------------------- */
142 #endif /* OPJ_T2_H */