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Added feature for generation of tile parts. Modifications in image_to_j2k.c, openjpeg.c, j2k.c, pi.c

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Added function j2k_write_tlm(),to generate TLM marker for a Digital cinema compliant codestream. Modifications in j2k.c.
This commit is contained in:
Parvatha Elangovan
2007-03-20 17:15:18 +00:00
parent 8bc6da2ffa
commit 694a173adb
15 changed files with 853 additions and 106 deletions
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25
libopenjpeg/pi.h
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@@ -65,6 +65,8 @@ typedef struct opj_pi_comp {
Packet iterator
*/
typedef struct opj_pi_iterator {
/** Enabling Tile part generation*/
char tp_on;
/** precise if the packet has been already used (usefull for progression order change) */
short int *include;
/** layer step used to localize the packet in the include vector */
@@ -99,14 +101,33 @@ typedef struct opj_pi_iterator {
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a packet iterator
Create a packet iterator for Encoder
@param image Raw image for which the packets will be listed
@param cp Coding parameters
@param tileno Number that identifies the tile for which to list the packets
@return Returns a packet iterator that points to the first packet of the tile
@see pi_destroy
*/
opj_pi_iterator_t *pi_create(opj_image_t * image, opj_cp_t * cp, int tileno);
opj_pi_iterator_t *pi_initialise_encode(opj_image_t *image, opj_cp_t *cp, int tileno, int pino);
/**
Modify the packet iterator for enabling tile part generation
@param pi Handle to the packet iterator generated in pi_initialise_encode
@param cp Coding parameters
@param tileno Number that identifies the tile for which to list the packets
@param tpnum Tile part number of the current tile
@param tppos The position of the tile part flag in the progression order
@param final_encoding If 0 Create a new packet iterator which is destroyed at end of call,If 1 use the packet iterator previously generated.
*/
void pi_create_encode( opj_pi_iterator_t *pi, opj_cp_t *cp,int tileno, int pino,int tpnum, int tppos,char final_encoding);
/**
Create a packet iterator for Decoder
@param image Raw image for which the packets will be listed
@param cp Coding parameters
@param tileno Number that identifies the tile for which to list the packets
@return Returns a packet iterator that points to the first packet of the tile
@see pi_destroy
*/
opj_pi_iterator_t *pi_create_decode(opj_image_t * image, opj_cp_t * cp, int tileno);
/**
Destroy a packet iterator