static Byte_t * imagetopnm(opj_image_t *image, ihdrbox_param_t **ihdrbox);
-Byte_t * j2k_to_pnm( const char *fn, ihdrbox_param_t **ihdrbox)
+Byte_t * j2k_to_pnm(const char *fn, ihdrbox_param_t **ihdrbox)
{
- Byte_t *pnmstream = NULL;
- opj_dparameters_t parameters; /* decompression parameters */
- opj_image_t *image = NULL;
- opj_codec_t *l_codec = NULL; /* handle to a decompressor */
- opj_stream_t *l_stream = NULL;
-
- /* set decoding parameters to default values */
- opj_set_default_decoder_parameters(¶meters);
-
- /* set a byte stream */
- l_stream = opj_stream_create_default_file_stream( fn, OPJ_TRUE);
- if (!l_stream){
- fprintf(stderr, "ERROR -> failed to create the stream from the file\n");
- return NULL;
- }
-
- /* decode the code-stream */
- /* ---------------------- */
-
- /* JPEG-2000 codestream */
- /* get a decoder handle */
- l_codec = opj_create_decompress(OPJ_CODEC_J2K);
-
- /* catch events using our callbacks and give a local context */
- opj_set_info_handler(l_codec, info_callback,00);
- opj_set_warning_handler(l_codec, warning_callback,00);
- opj_set_error_handler(l_codec, error_callback,00);
-
- /* setup the decoder decoding parameters using user parameters */
- if ( !opj_setup_decoder(l_codec, ¶meters) ){
- fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n");
- return NULL;
- }
-
- /* Read the main header of the codestream and if necessary the JP2 boxes*/
- if(! opj_read_header( l_stream, l_codec, &image)){
- fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n");
- opj_stream_destroy(l_stream);
- opj_destroy_codec(l_codec);
- opj_image_destroy(image);
- return NULL;
- }
+ Byte_t *pnmstream = NULL;
+ opj_dparameters_t parameters; /* decompression parameters */
+ opj_image_t *image = NULL;
+ opj_codec_t *l_codec = NULL; /* handle to a decompressor */
+ opj_stream_t *l_stream = NULL;
+
+ /* set decoding parameters to default values */
+ opj_set_default_decoder_parameters(¶meters);
+
+ /* set a byte stream */
+ l_stream = opj_stream_create_default_file_stream(fn, OPJ_TRUE);
+ if (!l_stream) {
+ fprintf(stderr, "ERROR -> failed to create the stream from the file\n");
+ return NULL;
+ }
+
+ /* decode the code-stream */
+ /* ---------------------- */
+
+ /* JPEG-2000 codestream */
+ /* get a decoder handle */
+ l_codec = opj_create_decompress(OPJ_CODEC_J2K);
+
+ /* catch events using our callbacks and give a local context */
+ opj_set_info_handler(l_codec, info_callback, 00);
+ opj_set_warning_handler(l_codec, warning_callback, 00);
+ opj_set_error_handler(l_codec, error_callback, 00);
+
+ /* setup the decoder decoding parameters using user parameters */
+ if (!opj_setup_decoder(l_codec, ¶meters)) {
+ fprintf(stderr, "ERROR -> j2k_dump: failed to setup the decoder\n");
+ return NULL;
+ }
+
+ /* Read the main header of the codestream and if necessary the JP2 boxes*/
+ if (! opj_read_header(l_stream, l_codec, &image)) {
+ fprintf(stderr, "ERROR -> j2k_to_image: failed to read the header\n");
+ opj_stream_destroy(l_stream);
+ opj_destroy_codec(l_codec);
+ opj_image_destroy(image);
+ return NULL;
+ }
#ifdef TODO /*decode area could be set from j2k_to_pnm call, modify the protocol between JPIP viewer and opj_dec_server*/
- if (! opj_set_decode_area( l_codec, image, parameters.DA_x0, parameters.DA_y0, parameters.DA_x1, parameters.DA_y1)){
- fprintf(stderr, "ERROR -> j2k_to_image: failed to set the decoded area\n");
- opj_stream_destroy(l_stream);
- opj_destroy_codec(l_codec);
- opj_image_destroy(image);
- return NULL;
- }
+ if (! opj_set_decode_area(l_codec, image, parameters.DA_x0, parameters.DA_y0,
+ parameters.DA_x1, parameters.DA_y1)) {
+ fprintf(stderr, "ERROR -> j2k_to_image: failed to set the decoded area\n");
+ opj_stream_destroy(l_stream);
+ opj_destroy_codec(l_codec);
+ opj_image_destroy(image);
+ return NULL;
+ }
#endif /*TODO*/
- /* Get the decoded image */
- if ( !( opj_decode(l_codec, l_stream, image) && opj_end_decompress(l_codec,l_stream) ) ) {
- fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+ /* Get the decoded image */
+ if (!(opj_decode(l_codec, l_stream, image) &&
+ opj_end_decompress(l_codec, l_stream))) {
+ fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
+ opj_stream_destroy(l_stream);
+ opj_destroy_codec(l_codec);
+ opj_image_destroy(image);
+ return NULL;
+ }
+
+ fprintf(stderr, "image is decoded!\n");
+
+ /* close the byte stream */
opj_stream_destroy(l_stream);
- opj_destroy_codec(l_codec);
+
+ /* create output image */
+ /* ------------------- */
+ if ((pnmstream = imagetopnm(image, ihdrbox)) == NULL) {
+ fprintf(stderr, "PNM image not generated\n");
+ }
+
+ /* free remaining structures */
+ if (l_codec) {
+ opj_destroy_codec(l_codec);
+ }
+
+ /* free image data structure */
opj_image_destroy(image);
- return NULL;
- }
-
- fprintf(stderr, "image is decoded!\n");
-
- /* close the byte stream */
- opj_stream_destroy(l_stream);
-
- /* create output image */
- /* ------------------- */
- if( (pnmstream = imagetopnm( image, ihdrbox))==NULL)
- fprintf( stderr, "PNM image not generated\n");
-
- /* free remaining structures */
- if(l_codec) {
- opj_destroy_codec(l_codec);
- }
-
- /* free image data structure */
- opj_image_destroy(image);
-
- return pnmstream;
+
+ return pnmstream;
}
/**
sample error callback expecting a FILE* client object
*/
-static void error_callback(const char *msg, void *client_data) {
- FILE *stream = (FILE*)client_data;
- fprintf(stream, "[ERROR] %s", msg);
+static void error_callback(const char *msg, void *client_data)
+{
+ FILE *stream = (FILE*)client_data;
+ fprintf(stream, "[ERROR] %s", msg);
}
/**
sample warning callback expecting a FILE* client object
*/
-static void warning_callback(const char *msg, void *client_data) {
- FILE *stream = (FILE*)client_data;
- fprintf(stream, "[WARNING] %s", msg);
+static void warning_callback(const char *msg, void *client_data)
+{
+ FILE *stream = (FILE*)client_data;
+ fprintf(stream, "[WARNING] %s", msg);
}
/**
sample debug callback expecting no client object
*/
-static void info_callback(const char *msg, void *client_data) {
- (void)client_data;
- (void)msg;
- /* fprintf(stdout, "[INFO] %s", msg); */
+static void info_callback(const char *msg, void *client_data)
+{
+ (void)client_data;
+ (void)msg;
+ /* fprintf(stdout, "[INFO] %s", msg); */
}
static Byte_t * imagetopnm(opj_image_t *image, ihdrbox_param_t **ihdrbox)
{
- OPJ_UINT32 adjustR, adjustG=0, adjustB=0;
- OPJ_SIZE_T datasize;
- Byte_t *pix=NULL, *ptr=NULL;
- OPJ_UINT32 i;
-
- if(*ihdrbox){
- if( (*ihdrbox)->nc != image->numcomps)
- fprintf( stderr, "Exception: num of components not identical, codestream: %d, ihdrbox: %d\n", image->numcomps, (*ihdrbox)->nc);
-
- if( (*ihdrbox)->width != image->comps[0].w)
- (*ihdrbox)->width = image->comps[0].w;
-
- if( (*ihdrbox)->height != image->comps[0].h)
- (*ihdrbox)->height = image->comps[0].h;
-
- if( (*ihdrbox)->bpc != image->comps[0].prec)
- fprintf( stderr, "Exception: bits per component not identical, codestream: %d, ihdrbox: %d\n", image->comps[0].prec, (*ihdrbox)->bpc);
- }
- else{
- *ihdrbox = (ihdrbox_param_t *)malloc( sizeof(ihdrbox_param_t));
- (*ihdrbox)->width = image->comps[0].w;
- (*ihdrbox)->height = image->comps[0].h;
- assert( image->comps[0].prec < 256 );
- (*ihdrbox)->bpc = (Byte_t)image->comps[0].prec;
- assert( image->numcomps < USHRT_MAX );
- (*ihdrbox)->nc = (Byte2_t)image->numcomps;
- }
-
- datasize = (image->numcomps)*(image->comps[0].w)*(image->comps[0].h);
-
- if (image->comps[0].prec > 8) {
- adjustR = image->comps[0].prec - 8;
- printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
- }
- else
- adjustR = 0;
-
- if( image->numcomps == 3){
- if (image->comps[1].prec > 8) {
- adjustG = image->comps[1].prec - 8;
- printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
+ OPJ_UINT32 adjustR, adjustG = 0, adjustB = 0;
+ OPJ_SIZE_T datasize;
+ Byte_t *pix = NULL, *ptr = NULL;
+ OPJ_UINT32 i;
+
+ if (*ihdrbox) {
+ if ((*ihdrbox)->nc != image->numcomps) {
+ fprintf(stderr,
+ "Exception: num of components not identical, codestream: %d, ihdrbox: %d\n",
+ image->numcomps, (*ihdrbox)->nc);
+ }
+
+ if ((*ihdrbox)->width != image->comps[0].w) {
+ (*ihdrbox)->width = image->comps[0].w;
+ }
+
+ if ((*ihdrbox)->height != image->comps[0].h) {
+ (*ihdrbox)->height = image->comps[0].h;
+ }
+
+ if ((*ihdrbox)->bpc != image->comps[0].prec) {
+ fprintf(stderr,
+ "Exception: bits per component not identical, codestream: %d, ihdrbox: %d\n",
+ image->comps[0].prec, (*ihdrbox)->bpc);
+ }
+ } else {
+ *ihdrbox = (ihdrbox_param_t *)malloc(sizeof(ihdrbox_param_t));
+ (*ihdrbox)->width = image->comps[0].w;
+ (*ihdrbox)->height = image->comps[0].h;
+ assert(image->comps[0].prec < 256);
+ (*ihdrbox)->bpc = (Byte_t)image->comps[0].prec;
+ assert(image->numcomps < USHRT_MAX);
+ (*ihdrbox)->nc = (Byte2_t)image->numcomps;
}
- else
- adjustG = 0;
-
- if (image->comps[2].prec > 8) {
- adjustB = image->comps[2].prec - 8;
- printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
+
+ datasize = (image->numcomps) * (image->comps[0].w) * (image->comps[0].h);
+
+ if (image->comps[0].prec > 8) {
+ adjustR = image->comps[0].prec - 8;
+ printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n",
+ image->comps[0].prec);
+ } else {
+ adjustR = 0;
+ }
+
+ if (image->numcomps == 3) {
+ if (image->comps[1].prec > 8) {
+ adjustG = image->comps[1].prec - 8;
+ printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n",
+ image->comps[1].prec);
+ } else {
+ adjustG = 0;
+ }
+
+ if (image->comps[2].prec > 8) {
+ adjustB = image->comps[2].prec - 8;
+ printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n",
+ image->comps[2].prec);
+ } else {
+ adjustB = 0;
+ }
}
- else
- adjustB = 0;
- }
-
- pix = (Byte_t *)malloc( datasize);
- ptr = pix;
-
- for( i = 0; i < image->comps[0].w * image->comps[0].h; i++){
- int r, g, b;
- r = image->comps[0].data[i];
- r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
-
- /* if( adjustR > 0) */
- *(ptr++) = (Byte_t) ((r >> adjustR)+((r >> (adjustR-1))%2));
-
- if( image->numcomps == 3){
- g = image->comps[1].data[i];
- g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
- *(ptr++) = (Byte_t) ((g >> adjustG)+((g >> (adjustG-1))%2));
-
- b = image->comps[2].data[i];
- b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
- *(ptr++) = (Byte_t) ((b >> adjustB)+((b >> (adjustB-1))%2));
+
+ pix = (Byte_t *)malloc(datasize);
+ ptr = pix;
+
+ for (i = 0; i < image->comps[0].w * image->comps[0].h; i++) {
+ int r, g, b;
+ r = image->comps[0].data[i];
+ r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
+
+ /* if( adjustR > 0) */
+ *(ptr++) = (Byte_t)((r >> adjustR) + ((r >> (adjustR - 1)) % 2));
+
+ if (image->numcomps == 3) {
+ g = image->comps[1].data[i];
+ g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
+ *(ptr++) = (Byte_t)((g >> adjustG) + ((g >> (adjustG - 1)) % 2));
+
+ b = image->comps[2].data[i];
+ b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
+ *(ptr++) = (Byte_t)((b >> adjustB) + ((b >> (adjustB - 1)) % 2));
+ }
}
- }
- return pix;
+ return pix;
}
projects / openjpeg.git / blobdiff