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-rw-r--r--third_party/libopenjpeg20/tcd.h401
1 files changed, 223 insertions, 178 deletions
diff --git a/third_party/libopenjpeg20/tcd.h b/third_party/libopenjpeg20/tcd.h
index 07f8379afd..3f40b3595b 100644
--- a/third_party/libopenjpeg20/tcd.h
+++ b/third_party/libopenjpeg20/tcd.h
@@ -1,6 +1,6 @@
/*
- * The copyright in this software is being made available under the 2-clauses
- * BSD License, included below. This software may be subject to other third
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
@@ -8,10 +8,10 @@
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2007, Francois-Olivier Devaux
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
- * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
+ * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
* Copyright (c) 2012, CS Systemes d'Information, France
* All rights reserved.
*
@@ -36,8 +36,8 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef __TCD_H
-#define __TCD_H
+#ifndef OPJ_TCD_H
+#define OPJ_TCD_H
/**
@file tcd.h
@brief Implementation of a tile coder/decoder (TCD)
@@ -49,124 +49,155 @@ each other. The functions in TCD.C are used by other functions in J2K.C.
/** @defgroup TCD TCD - Implementation of a tile coder/decoder */
/*@{*/
-/**
-FIXME DOC
-*/
-typedef struct opj_tcd_seg {
- OPJ_BYTE ** data;
- OPJ_UINT32 dataindex;
- OPJ_UINT32 numpasses;
- OPJ_UINT32 real_num_passes;
- OPJ_UINT32 len;
- OPJ_UINT32 maxpasses;
- OPJ_UINT32 numnewpasses;
- OPJ_UINT32 newlen;
-} opj_tcd_seg_t;
/**
FIXME DOC
*/
typedef struct opj_tcd_pass {
- OPJ_UINT32 rate;
- OPJ_FLOAT64 distortiondec;
- OPJ_UINT32 len;
- OPJ_UINT32 term : 1;
+ OPJ_UINT32 rate;
+ OPJ_FLOAT64 distortiondec;
+ OPJ_UINT32 len;
+ OPJ_BITFIELD term : 1;
} opj_tcd_pass_t;
/**
FIXME DOC
*/
typedef struct opj_tcd_layer {
- OPJ_UINT32 numpasses; /* Number of passes in the layer */
- OPJ_UINT32 len; /* len of information */
- OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */
- OPJ_BYTE *data; /* data */
+ OPJ_UINT32 numpasses; /* Number of passes in the layer */
+ OPJ_UINT32 len; /* len of information */
+ OPJ_FLOAT64 disto; /* add for index (Cfr. Marcela) */
+ OPJ_BYTE *data; /* data */
} opj_tcd_layer_t;
/**
FIXME DOC
*/
typedef struct opj_tcd_cblk_enc {
- OPJ_BYTE* data; /* Data */
- opj_tcd_layer_t* layers; /* layer information */
- opj_tcd_pass_t* passes; /* information about the passes */
- OPJ_INT32 x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 numbps;
- OPJ_UINT32 numlenbits;
- OPJ_UINT32 data_size; /* Size of allocated data buffer */
- OPJ_UINT32 numpasses; /* number of pass already done for the code-blocks */
- OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */
- OPJ_UINT32 totalpasses; /* total number of passes */
+ OPJ_BYTE* data; /* Data */
+ opj_tcd_layer_t* layers; /* layer information */
+ opj_tcd_pass_t* passes; /* information about the passes */
+ OPJ_INT32 x0, y0, x1,
+ y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_UINT32 numbps;
+ OPJ_UINT32 numlenbits;
+ OPJ_UINT32 data_size; /* Size of allocated data buffer */
+ OPJ_UINT32
+ numpasses; /* number of pass already done for the code-blocks */
+ OPJ_UINT32 numpassesinlayers; /* number of passes in the layer */
+ OPJ_UINT32 totalpasses; /* total number of passes */
} opj_tcd_cblk_enc_t;
+/** Chunk of codestream data that is part of a code block */
+typedef struct opj_tcd_seg_data_chunk {
+ /* Point to tilepart buffer. We don't make a copy !
+ So the tilepart buffer must be kept alive
+ as long as we need to decode the codeblocks */
+ OPJ_BYTE * data;
+ OPJ_UINT32 len; /* Usable length of data */
+} opj_tcd_seg_data_chunk_t;
+
+/** Segment of a code-block.
+ * A segment represent a number of consecutive coding passes, without termination
+ * of MQC or RAW between them. */
+typedef struct opj_tcd_seg {
+ OPJ_UINT32 len; /* Size of data related to this segment */
+ /* Number of passes decoded. Including those that we skip */
+ OPJ_UINT32 numpasses;
+ /* Number of passes actually to be decoded. To be used for code-block decoding */
+ OPJ_UINT32 real_num_passes;
+ /* Maximum number of passes for this segment */
+ OPJ_UINT32 maxpasses;
+ /* Number of new passes for current packed. Transitory value */
+ OPJ_UINT32 numnewpasses;
+ /* Codestream length for this segment for current packed. Transitory value */
+ OPJ_UINT32 newlen;
+} opj_tcd_seg_t;
+
+/** Code-block for decoding */
typedef struct opj_tcd_cblk_dec {
- OPJ_BYTE * data; /* Data */
- opj_tcd_seg_t* segs; /* segments information */
- OPJ_INT32 x0, y0, x1, y1; /* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 numbps;
- OPJ_UINT32 numlenbits;
- OPJ_UINT32 data_max_size; /* Size of allocated data buffer */
- OPJ_UINT32 data_current_size; /* Size of used data buffer */
- OPJ_UINT32 numnewpasses; /* number of pass added to the code-blocks */
- OPJ_UINT32 numsegs; /* number of segments */
- OPJ_UINT32 real_num_segs;
- OPJ_UINT32 m_current_max_segs;
+ opj_tcd_seg_t* segs; /* segments information */
+ opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */
+ /* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ OPJ_UINT32 numbps;
+ /* number of bits for len, for the current packet. Transitory value */
+ OPJ_UINT32 numlenbits;
+ /* number of pass added to the code-blocks, for the current packet. Transitory value */
+ OPJ_UINT32 numnewpasses;
+ /* number of segments, including those of packet we skip */
+ OPJ_UINT32 numsegs;
+ /* number of segments, to be used for code block decoding */
+ OPJ_UINT32 real_num_segs;
+ OPJ_UINT32 m_current_max_segs; /* allocated number of segs[] items */
+ OPJ_UINT32 numchunks; /* Number of valid chunks items */
+ OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */
} opj_tcd_cblk_dec_t;
-/**
-FIXME DOC
-*/
+/** Precinct structure */
typedef struct opj_tcd_precinct {
- OPJ_INT32 x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 cw, ch; /* number of precinct in width and height */
- union{ /* code-blocks information */
- opj_tcd_cblk_enc_t* enc;
- opj_tcd_cblk_dec_t* dec;
- void* blocks;
- } cblks;
- OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */
- opj_tgt_tree_t *incltree; /* inclusion tree */
- opj_tgt_tree_t *imsbtree; /* IMSB tree */
+ /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ OPJ_UINT32 cw, ch; /* number of code-blocks, in width and height */
+ union { /* code-blocks information */
+ opj_tcd_cblk_enc_t* enc;
+ opj_tcd_cblk_dec_t* dec;
+ void* blocks;
+ } cblks;
+ OPJ_UINT32 block_size; /* size taken by cblks (in bytes) */
+ opj_tgt_tree_t *incltree; /* inclusion tree */
+ opj_tgt_tree_t *imsbtree; /* IMSB tree */
} opj_tcd_precinct_t;
-/**
-FIXME DOC
-*/
+/** Sub-band structure */
typedef struct opj_tcd_band {
- OPJ_INT32 x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 bandno;
- opj_tcd_precinct_t *precincts; /* precinct information */
- OPJ_UINT32 precincts_data_size; /* size of data taken by precincts */
- OPJ_INT32 numbps;
- OPJ_FLOAT32 stepsize;
+ /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ /* band number: for lowest resolution level (0=LL), otherwise (1=HL, 2=LH, 3=HH) */
+ OPJ_UINT32 bandno;
+ /* precinct information */
+ opj_tcd_precinct_t *precincts;
+ /* size of data taken by precincts */
+ OPJ_UINT32 precincts_data_size;
+ OPJ_INT32 numbps;
+ OPJ_FLOAT32 stepsize;
} opj_tcd_band_t;
-/**
-FIXME DOC
-*/
+/** Tile-component resolution structure */
typedef struct opj_tcd_resolution {
- OPJ_INT32 x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 pw, ph;
- OPJ_UINT32 numbands; /* number sub-band for the resolution level */
- opj_tcd_band_t bands[3]; /* subband information */
+ /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ /* number of precincts, in width and height, for this resolution level */
+ OPJ_UINT32 pw, ph;
+ /* number of sub-bands for the resolution level (1 for lowest resolution level, 3 otherwise) */
+ OPJ_UINT32 numbands;
+ /* subband information */
+ opj_tcd_band_t bands[3];
} opj_tcd_resolution_t;
-/**
-FIXME DOC
-*/
-typedef struct opj_tcd_tilecomp
-{
- OPJ_INT32 x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 numresolutions; /* number of resolutions level */
- OPJ_UINT32 minimum_num_resolutions; /* number of resolutions level to decode (at max)*/
- opj_tcd_resolution_t *resolutions; /* resolutions information */
- OPJ_UINT32 resolutions_size; /* size of data for resolutions (in bytes) */
- OPJ_INT32 *data; /* data of the component */
- OPJ_BOOL ownsData; /* if true, then need to free after usage, otherwise do not free */
- OPJ_UINT32 data_size_needed; /* we may either need to allocate this amount of data, or re-use image data and ignore this value */
- OPJ_UINT32 data_size; /* size of the data of the component */
- OPJ_INT32 numpix; /* add fixed_quality */
+/** Tile-component structure */
+typedef struct opj_tcd_tilecomp {
+ /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ /* number of resolutions level */
+ OPJ_UINT32 numresolutions;
+ /* number of resolutions level to decode (at max)*/
+ OPJ_UINT32 minimum_num_resolutions;
+ /* resolutions information */
+ opj_tcd_resolution_t *resolutions;
+ /* size of data for resolutions (in bytes) */
+ OPJ_UINT32 resolutions_size;
+ /* data of the component */
+ OPJ_INT32 *data;
+ /* if true, then need to free after usage, otherwise do not free */
+ OPJ_BOOL ownsData;
+ /* we may either need to allocate this amount of data, or re-use image data and ignore this value */
+ OPJ_UINT32 data_size_needed;
+ /* size of the data of the component */
+ OPJ_UINT32 data_size;
+ /* add fixed_quality */
+ OPJ_INT32 numpix;
} opj_tcd_tilecomp_t;
@@ -174,21 +205,21 @@ typedef struct opj_tcd_tilecomp
FIXME DOC
*/
typedef struct opj_tcd_tile {
- OPJ_INT32 x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
- OPJ_UINT32 numcomps; /* number of components in tile */
- opj_tcd_tilecomp_t *comps; /* Components information */
- OPJ_INT32 numpix; /* add fixed_quality */
- OPJ_FLOAT64 distotile; /* add fixed_quality */
- OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */
- OPJ_UINT32 packno; /* packet number */
+ /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
+ OPJ_INT32 x0, y0, x1, y1;
+ OPJ_UINT32 numcomps; /* number of components in tile */
+ opj_tcd_tilecomp_t *comps; /* Components information */
+ OPJ_INT32 numpix; /* add fixed_quality */
+ OPJ_FLOAT64 distotile; /* add fixed_quality */
+ OPJ_FLOAT64 distolayer[100]; /* add fixed_quality */
+ OPJ_UINT32 packno; /* packet number */
} opj_tcd_tile_t;
/**
FIXME DOC
*/
-typedef struct opj_tcd_image
-{
- opj_tcd_tile_t *tiles; /* Tiles information */
+typedef struct opj_tcd_image {
+ opj_tcd_tile_t *tiles; /* Tiles information */
}
opj_tcd_image_t;
@@ -196,30 +227,31 @@ opj_tcd_image_t;
/**
Tile coder/decoder
*/
-typedef struct opj_tcd
-{
- /** Position of the tilepart flag in Progression order*/
- OPJ_INT32 tp_pos;
- /** Tile part number*/
- OPJ_UINT32 tp_num;
- /** Current tile part number*/
- OPJ_UINT32 cur_tp_num;
- /** Total number of tileparts of the current tile*/
- OPJ_UINT32 cur_totnum_tp;
- /** Current Packet iterator number */
- OPJ_UINT32 cur_pino;
- /** info on each image tile */
- opj_tcd_image_t *tcd_image;
- /** image header */
- opj_image_t *image;
- /** coding parameters */
- opj_cp_t *cp;
- /** coding/decoding parameters common to all tiles */
- opj_tcp_t *tcp;
- /** current encoded/decoded tile */
- OPJ_UINT32 tcd_tileno;
- /** tell if the tcd is a decoder. */
- OPJ_UINT32 m_is_decoder : 1;
+typedef struct opj_tcd {
+ /** Position of the tilepart flag in Progression order*/
+ OPJ_INT32 tp_pos;
+ /** Tile part number*/
+ OPJ_UINT32 tp_num;
+ /** Current tile part number*/
+ OPJ_UINT32 cur_tp_num;
+ /** Total number of tileparts of the current tile*/
+ OPJ_UINT32 cur_totnum_tp;
+ /** Current Packet iterator number */
+ OPJ_UINT32 cur_pino;
+ /** info on each image tile */
+ opj_tcd_image_t *tcd_image;
+ /** image header */
+ opj_image_t *image;
+ /** coding parameters */
+ opj_cp_t *cp;
+ /** coding/decoding parameters common to all tiles */
+ opj_tcp_t *tcp;
+ /** current encoded/decoded tile */
+ OPJ_UINT32 tcd_tileno;
+ /** tell if the tcd is a decoder. */
+ OPJ_BITFIELD m_is_decoder : 1;
+ /** Thread pool */
+ opj_thread_pool_t* thread_pool;
} opj_tcd_t;
/** @name Exported functions */
@@ -229,7 +261,7 @@ typedef struct opj_tcd
/**
Dump the content of a tcd structure
*/
-/*void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);*/ /* TODO MSD shoul use the new v2 structures */
+/*void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);*/ /* TODO MSD shoul use the new v2 structures */
/**
Create a new TCD handle
@@ -246,64 +278,68 @@ void opj_tcd_destroy(opj_tcd_t *tcd);
/**
* Initialize the tile coder and may reuse some memory.
- * @param p_tcd TCD handle.
- * @param p_image raw image.
- * @param p_cp coding parameters.
+ * @param p_tcd TCD handle.
+ * @param p_image raw image.
+ * @param p_cp coding parameters.
+ * @param p_tp thread pool
*
* @return true if the encoding values could be set (false otherwise).
*/
-OPJ_BOOL opj_tcd_init( opj_tcd_t *p_tcd,
- opj_image_t * p_image,
- opj_cp_t * p_cp );
+OPJ_BOOL opj_tcd_init(opj_tcd_t *p_tcd,
+ opj_image_t * p_image,
+ opj_cp_t * p_cp,
+ opj_thread_pool_t* p_tp);
/**
* Allocates memory for decoding a specific tile.
*
- * @param p_tcd the tile decoder.
- * @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the
+ * @param p_tcd the tile decoder.
+ * @param p_tile_no the index of the tile received in sequence. This not necessarily lead to the
* tile at index p_tile_no.
* @param p_manager the event manager.
*
- * @return true if the remaining data is sufficient.
+ * @return true if the remaining data is sufficient.
*/
-OPJ_BOOL opj_tcd_init_decode_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager);
+OPJ_BOOL opj_tcd_init_decode_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no,
+ opj_event_mgr_t* p_manager);
-void opj_tcd_makelayer_fixed(opj_tcd_t *tcd, OPJ_UINT32 layno, OPJ_UINT32 final);
+void opj_tcd_makelayer_fixed(opj_tcd_t *tcd, OPJ_UINT32 layno,
+ OPJ_UINT32 final);
void opj_tcd_rateallocate_fixed(opj_tcd_t *tcd);
-void opj_tcd_makelayer( opj_tcd_t *tcd,
- OPJ_UINT32 layno,
- OPJ_FLOAT64 thresh,
- OPJ_UINT32 final);
+void opj_tcd_makelayer(opj_tcd_t *tcd,
+ OPJ_UINT32 layno,
+ OPJ_FLOAT64 thresh,
+ OPJ_UINT32 final);
-OPJ_BOOL opj_tcd_rateallocate( opj_tcd_t *tcd,
- OPJ_BYTE *dest,
- OPJ_UINT32 * p_data_written,
- OPJ_UINT32 len,
- opj_codestream_info_t *cstr_info);
+OPJ_BOOL opj_tcd_rateallocate(opj_tcd_t *tcd,
+ OPJ_BYTE *dest,
+ OPJ_UINT32 * p_data_written,
+ OPJ_UINT32 len,
+ opj_codestream_info_t *cstr_info);
/**
* Gets the maximum tile size that will be taken by the tile once decoded.
*/
-OPJ_UINT32 opj_tcd_get_decoded_tile_size (opj_tcd_t *p_tcd );
+OPJ_UINT32 opj_tcd_get_decoded_tile_size(opj_tcd_t *p_tcd);
/**
* Encodes a tile from the raw image into the given buffer.
- * @param p_tcd Tile Coder handle
- * @param p_tile_no Index of the tile to encode.
- * @param p_dest Destination buffer
- * @param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest
- * @param p_len Maximum length of the destination buffer
- * @param p_cstr_info Codestream information structure
+ * @param p_tcd Tile Coder handle
+ * @param p_tile_no Index of the tile to encode.
+ * @param p_dest Destination buffer
+ * @param p_data_written pointer to an int that is incremented by the number of bytes really written on p_dest
+ * @param p_len Maximum length of the destination buffer
+ * @param p_cstr_info Codestream information structure
* @return true if the coding is successful.
*/
-OPJ_BOOL opj_tcd_encode_tile( opj_tcd_t *p_tcd,
- OPJ_UINT32 p_tile_no,
- OPJ_BYTE *p_dest,
- OPJ_UINT32 * p_data_written,
- OPJ_UINT32 p_len,
- struct opj_codestream_info *p_cstr_info);
+OPJ_BOOL opj_tcd_encode_tile(opj_tcd_t *p_tcd,
+ OPJ_UINT32 p_tile_no,
+ OPJ_BYTE *p_dest,
+ OPJ_UINT32 * p_data_written,
+ OPJ_UINT32 p_len,
+ struct opj_codestream_info *p_cstr_info);
/**
@@ -315,44 +351,44 @@ Decode a tile from a buffer into a raw image
@param cstr_info FIXME DOC
@param manager the event manager.
*/
-OPJ_BOOL opj_tcd_decode_tile( opj_tcd_t *tcd,
- OPJ_BYTE *src,
- OPJ_UINT32 len,
- OPJ_UINT32 tileno,
- opj_codestream_index_t *cstr_info,
- opj_event_mgr_t *manager);
+OPJ_BOOL opj_tcd_decode_tile(opj_tcd_t *tcd,
+ OPJ_BYTE *src,
+ OPJ_UINT32 len,
+ OPJ_UINT32 tileno,
+ opj_codestream_index_t *cstr_info,
+ opj_event_mgr_t *manager);
/**
* Copies tile data from the system onto the given memory block.
*/
-OPJ_BOOL opj_tcd_update_tile_data ( opj_tcd_t *p_tcd,
- OPJ_BYTE * p_dest,
- OPJ_UINT32 p_dest_length );
+OPJ_BOOL opj_tcd_update_tile_data(opj_tcd_t *p_tcd,
+ OPJ_BYTE * p_dest,
+ OPJ_UINT32 p_dest_length);
/**
*
*/
-OPJ_UINT32 opj_tcd_get_encoded_tile_size ( opj_tcd_t *p_tcd );
+OPJ_UINT32 opj_tcd_get_encoded_tile_size(opj_tcd_t *p_tcd);
/**
* Initialize the tile coder and may reuse some meory.
*
- * @param p_tcd TCD handle.
- * @param p_tile_no current tile index to encode.
+ * @param p_tcd TCD handle.
+ * @param p_tile_no current tile index to encode.
* @param p_manager the event manager.
*
* @return true if the encoding values could be set (false otherwise).
*/
-OPJ_BOOL opj_tcd_init_encode_tile ( opj_tcd_t *p_tcd,
- OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager );
+OPJ_BOOL opj_tcd_init_encode_tile(opj_tcd_t *p_tcd,
+ OPJ_UINT32 p_tile_no, opj_event_mgr_t* p_manager);
/**
* Copies tile data from the given memory block onto the system.
*/
-OPJ_BOOL opj_tcd_copy_tile_data (opj_tcd_t *p_tcd,
- OPJ_BYTE * p_src,
- OPJ_UINT32 p_src_length );
+OPJ_BOOL opj_tcd_copy_tile_data(opj_tcd_t *p_tcd,
+ OPJ_BYTE * p_src,
+ OPJ_UINT32 p_src_length);
/**
* Allocates tile component data
@@ -361,9 +397,18 @@ OPJ_BOOL opj_tcd_copy_tile_data (opj_tcd_t *p_tcd,
*/
OPJ_BOOL opj_alloc_tile_component_data(opj_tcd_tilecomp_t *l_tilec);
+/** Returns whether a sub-band is empty (i.e. whether it has a null area)
+ * @param band Sub-band handle.
+ * @return OPJ_TRUE whether the sub-band is empty.
+ */
+OPJ_BOOL opj_tcd_is_band_empty(opj_tcd_band_t* band);
+
+/** Reinitialize a segment */
+void opj_tcd_reinit_segment(opj_tcd_seg_t* seg);
+
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
-#endif /* __TCD_H */
+#endif /* OPJ_TCD_H */