int main(int argc,char *argv[])
{
msgqueue_param_t *msgqueue;
int infd, outfd;
Byte8_t jptlen, j2klen;
struct stat sb;
Byte_t *jptstream, *j2kstream;
if( argc < 3){
fprintf( stderr, "Too few arguments:\n");
fprintf( stderr, " - input jpt file\n");
fprintf( stderr, " - output j2k file\n");
return -1;
}
if(( infd = open( argv[1], O_RDONLY)) == -1){
fprintf( stderr, "file %s not exist\n", argv[1]);
return -1;
}
if( fstat( infd, &sb) == -1){
fprintf( stderr, "input file stream is broken\n");
return -1;
}
jptlen = (Byte8_t)sb.st_size;
jptstream = (Byte_t *)malloc( jptlen);
if( read( infd, jptstream, jptlen) != jptlen){
fprintf( stderr, "file reading error\n");
free( jptstream);
return -1;
}
close(infd);
msgqueue = gene_msgqueue( true, NULL);
parse_stream( jptstream, jptlen, 0, msgqueue);
//print_msgqueue( msgqueue);
j2kstream = recons_j2k( msgqueue, jptstream, msgqueue->first->csn, 0, &j2klen);
delete_msgqueue( &msgqueue);
free( jptstream);
if(( outfd = open( argv[2], O_WRONLY|O_CREAT, S_IRWXU|S_IRWXG)) == -1){
fprintf( stderr, "file %s open error\n", argv[2]);
return -1;
}
if( write( outfd, j2kstream, j2klen) != j2klen)
fprintf( stderr, "j2k file write error\n");
free( j2kstream);
close(outfd);
return 0;
}
Byte_t * jpipstream_to_pnm( Byte_t *jpipstream, msgqueue_param_t *msgqueue, Byte8_t csn, int fw, int fh, ihdrbox_param_t **ihdrbox)
{
Byte_t *pnmstream;
Byte_t *j2kstream; // j2k or jp2 codestream
Byte8_t j2klen;
j2kstream = recons_j2k( msgqueue, jpipstream, csn, fw, fh, &j2klen);
pnmstream = j2k_to_pnm( j2kstream, j2klen, ihdrbox);
free( j2kstream);
return pnmstream;
}
void OPJ_CALLCONV decode_jpip( jpip_dec_param_t *dec)
{
parse_JPIPstream( dec->jpipstream, dec->jpiplen, 0, dec->msgqueue);
if( dec->metadatalist){ /* JP2 encoding*/
parse_metamsg( dec->msgqueue, dec->jpipstream, dec->jpiplen, dec->metadatalist);
dec->ihdrbox = gene_ihdrbox( dec->metadatalist, dec->jpipstream);
dec->jp2kstream = recons_jp2( dec->msgqueue, dec->jpipstream, dec->msgqueue->first->csn, &dec->jp2klen);
}
else /* J2k encoding */
/* Notice: arguments fw, fh need to be set for LRCP, PCRL, CPRL*/
dec->jp2kstream = recons_j2k( dec->msgqueue, dec->jpipstream, dec->msgqueue->first->csn, 0, 0, &dec->jp2klen);
}
Byte_t * jpipstream_to_pnm( Byte_t *jpipstream, msgqueue_param_t *msgqueue, Byte8_t csn, int fw, int fh, ihdrbox_param_t **ihdrbox)
{
Byte_t *pnmstream;
Byte_t *j2kstream; /* j2k or jp2 codestream */
Byte8_t j2klen;
FILE *fp;
const char j2kfname[] = "tmp.j2k";
j2kstream = recons_j2k( msgqueue, jpipstream, csn, fw, fh, &j2klen);
fp = fopen( j2kfname, "w+b");
fwrite( j2kstream, j2klen, 1, fp);
free( j2kstream);
fseek( fp, 0, SEEK_SET);
pnmstream = j2k_to_pnm( fp, ihdrbox);
fclose( fp);
remove( j2kfname);
return pnmstream;
}
Byte_t * jpipstream_to_pnm( Byte_t *jpipstream, msgqueue_param_t *msgqueue, Byte8_t csn, int fw, int fh, ihdrbox_param_t **ihdrbox)
{
Byte_t *pnmstream;
Byte_t *j2kstream; /* j2k or jp2 codestream */
Byte8_t j2klen;
size_t retlen;
FILE *fp;
const char j2kfname[] = "tmp.j2k";
fp = fopen( j2kfname, "w+b");
if( !fp )
{
return NULL;
}
j2kstream = recons_j2k( msgqueue, jpipstream, csn, fw, fh, &j2klen);
if( !j2kstream )
{
fclose(fp);
remove( j2kfname);
return NULL;
}
retlen = fwrite( j2kstream, 1, j2klen, fp);
opj_free( j2kstream);
fclose(fp);
if( retlen != j2klen )
{
remove( j2kfname);
return NULL;
}
pnmstream = j2k_to_pnm( j2kfname, ihdrbox);
remove( j2kfname);
return pnmstream;
}
