walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

tcd.h: doc fixes and improvements

This commit is contained in:
Even Rouault 2017-08-09 14:50:59 +02:00
parent 11b1ffb373
commit 9203e8ec51
1 changed files with 44 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
src/lib/openjp2/tcd.h
View File

@ -115,7 +115,7 @@ typedef struct opj_tcd_seg {
OPJ_UINT32 newlen; OPJ_UINT32 newlen;
} opj_tcd_seg_t; } opj_tcd_seg_t;
/* Code-block for decoding */ /** Code-block for decoding */
typedef struct opj_tcd_cblk_dec { typedef struct opj_tcd_cblk_dec {
opj_tcd_seg_t* segs; /* segments information */ opj_tcd_seg_t* segs; /* segments information */
opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */ opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */
@ -135,13 +135,11 @@ typedef struct opj_tcd_cblk_dec {
OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */ OPJ_UINT32 numchunksalloc; /* Number of chunks item allocated */
} opj_tcd_cblk_dec_t; } opj_tcd_cblk_dec_t;
/** /** Precinct structure */
FIXME DOC
*/
typedef struct opj_tcd_precinct { typedef struct opj_tcd_precinct {
OPJ_INT32 x0, y0, x1, /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
y1; /* 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 precinct in width and height */ OPJ_UINT32 cw, ch; /* number of code-blocks, in width and height */
union { /* code-blocks information */ union { /* code-blocks information */
opj_tcd_cblk_enc_t* enc; opj_tcd_cblk_enc_t* enc;
opj_tcd_cblk_dec_t* dec; opj_tcd_cblk_dec_t* dec;
@ -152,48 +150,54 @@ typedef struct opj_tcd_precinct {
opj_tgt_tree_t *imsbtree; /* IMSB tree */ opj_tgt_tree_t *imsbtree; /* IMSB tree */
} opj_tcd_precinct_t; } opj_tcd_precinct_t;
/** /** Sub-band structure */
FIXME DOC
*/
typedef struct opj_tcd_band { typedef struct opj_tcd_band {
OPJ_INT32 x0, y0, x1, /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
y1; /* 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 (0=HL, 1=LH, 2=HH) */
OPJ_UINT32 bandno; OPJ_UINT32 bandno;
opj_tcd_precinct_t *precincts; /* precinct information */ /* precinct information */
OPJ_UINT32 precincts_data_size; /* size of data taken by precincts */ opj_tcd_precinct_t *precincts;
/* size of data taken by precincts */
OPJ_UINT32 precincts_data_size;
OPJ_INT32 numbps; OPJ_INT32 numbps;
OPJ_FLOAT32 stepsize; OPJ_FLOAT32 stepsize;
} opj_tcd_band_t; } opj_tcd_band_t;
/** /** Tile-component resolution structure */
FIXME DOC
*/
typedef struct opj_tcd_resolution { typedef struct opj_tcd_resolution {
OPJ_INT32 x0, y0, x1, /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
y1; /* 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; OPJ_UINT32 pw, ph;
OPJ_UINT32 numbands; /* number sub-band for the resolution level */ /* number of sub-bands for the resolution level (1 for lowest resolution level, 3 otherwise) */
opj_tcd_band_t bands[3]; /* subband information */ OPJ_UINT32 numbands;
/* subband information */
opj_tcd_band_t bands[3];
} opj_tcd_resolution_t; } opj_tcd_resolution_t;
/** /** Tile-component structure */
FIXME DOC
*/
typedef struct opj_tcd_tilecomp { typedef struct opj_tcd_tilecomp {
OPJ_INT32 x0, y0, x1, /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */ OPJ_INT32 x0, y0, x1, y1;
OPJ_UINT32 numresolutions; /* number of resolutions level */ /* number of resolutions level */
OPJ_UINT32 OPJ_UINT32 numresolutions;
minimum_num_resolutions; /* number of resolutions level to decode (at max)*/ /* number of resolutions level to decode (at max)*/
opj_tcd_resolution_t *resolutions; /* resolutions information */ OPJ_UINT32 minimum_num_resolutions;
OPJ_UINT32 /* resolutions information */
resolutions_size; /* size of data for resolutions (in bytes) */ opj_tcd_resolution_t *resolutions;
OPJ_INT32 *data; /* data of the component */ /* size of data for resolutions (in bytes) */
OPJ_BOOL ownsData; /* if true, then need to free after usage, otherwise do not free */ OPJ_UINT32 resolutions_size;
OPJ_UINT32 /* data of the component */
data_size_needed; /* we may either need to allocate this amount of data, or re-use image data and ignore this value */ OPJ_INT32 *data;
OPJ_UINT32 data_size; /* size of the data of the component */ /* if true, then need to free after usage, otherwise do not free */
OPJ_INT32 numpix; /* add fixed_quality */ 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; } opj_tcd_tilecomp_t;
@ -201,8 +205,8 @@ typedef struct opj_tcd_tilecomp {
FIXME DOC FIXME DOC
*/ */
typedef struct opj_tcd_tile { typedef struct opj_tcd_tile {
OPJ_INT32 x0, y0, x1, /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
y1; /* 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_UINT32 numcomps; /* number of components in tile */
opj_tcd_tilecomp_t *comps; /* Components information */ opj_tcd_tilecomp_t *comps; /* Components information */
OPJ_INT32 numpix; /* add fixed_quality */ OPJ_INT32 numpix; /* add fixed_quality */