bool DotNetDecode(MarshalledImage* image)
{
opj_dparameters dparameters;
try
{
opj_set_default_decoder_parameters(&dparameters);
opj_dinfo_t* dinfo = opj_create_decompress(CODEC_J2K);
opj_setup_decoder(dinfo, &dparameters);
opj_cio* cio = opj_cio_open((opj_common_ptr)dinfo, image->encoded, image->length);
opj_image* jp2_image = opj_decode(dinfo, cio); // decode happens here
if (jp2_image == NULL)
throw "opj_decode failed";
image->width = jp2_image->x1 - jp2_image->x0;
image->height = jp2_image->y1 - jp2_image->y0;
image->components = jp2_image->numcomps;
int n = image->width * image->height;
image->decoded = new unsigned char[n * image->components];
for (int i = 0; i < image->components; i++)
std::copy(jp2_image->comps[i].data, jp2_image->comps[i].data + n, image->decoded + i * n);
opj_image_destroy(jp2_image);
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
return true;
}
catch (...)
{
return false;
}
}
JNIEXPORT jintArray JNICALL Java_nl_kb_jp2_JP2Reader_getTile
(JNIEnv *env, jclass cls, jstring fname, jint tile_index, jint reduction_factor, jobjectArray pixels) {
const char *filename = (*env)->GetStringUTFChars(env, fname, 0);
jclass intArrayClass = (*env)->FindClass(env, "[I");
jintArray ary = (*env)->NewIntArray(env, 3);
int data[3];
int i = 0;
for(i = 0; i < 3; ++i) { data[i] = 0; }
data[0] = READ_FAILURE;
FILE *fptr = fopen(filename, "rb");
if(fptr != NULL && is_jp2(fptr)) {
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
parameters.cp_reduce = reduction_factor;
struct opj_res resources = opj_init(filename, ¶meters);
if(resources.status == 0 && opj_get_decoded_tile(resources.l_codec, resources.l_stream, resources.image, tile_index)) {
int numpix = resources.image->comps[0].w * resources.image->comps[0].h;
int comp;
for(comp = 0; comp < resources.image->numcomps; ++comp) {
jintArray data = (*env)->NewIntArray(env, numpix);
(*env)->SetIntArrayRegion(env, data, (jsize) 0, (jsize) numpix, (jint*) resources.image->comps[comp].data);
(*env)->SetObjectArrayElement(env, pixels, (jsize) comp, data);
}
data[0] = READ_SUCCESS;
data[1] = resources.image->comps[0].w;
data[2] = resources.image->comps[0].h;
}
opj_cleanup(&resources);
}
(*env)->SetIntArrayRegion(env, ary, 0, 3, data);
return ary;
}
J2kImageDecoder::J2kImageDecoder() {
opj_set_default_decoder_parameters(¶meters);
dinfo = opj_create_decompress(CODEC_J2K);
opj_setup_decoder(dinfo, ¶meters);
}
static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
{
LibOpenJPEGContext *ctx = avctx->priv_data;
opj_set_default_decoder_parameters(&ctx->dec_params);
avctx->coded_frame = &ctx->image;
return 0;
}
static void
gst_openjpeg_dec_init (GstOpenJPEGDec * self)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) self;
gst_video_decoder_set_packetized (decoder, TRUE);
opj_set_default_decoder_parameters (&self->params);
self->params.cp_limit_decoding = NO_LIMITATION;
}
void J2KReader::decode(bool headeronly)
{
if( !_fileData || !_dataLength )
{
BOOST_THROW_EXCEPTION( exception::Bug()
<< exception::dev( "Need to open the file before decoding." ) );
}
opj_dparameters_t parameters; // decompression parameters
opj_dinfo_t *dinfo = NULL; // handle to a decompressor
opj_cio_t *cio = NULL;
_openjpeg.event_mgr.error_handler = NULL;
_openjpeg.event_mgr.warning_handler = NULL;
_openjpeg.event_mgr.info_handler = NULL;
opj_set_default_decoder_parameters(¶meters);
if (headeronly)
{
parameters.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
}
// Decompress a JPEG-2000 codestream
// get a decoder handle
dinfo = opj_create_decompress(CODEC_J2K);
// Catch events using our callbacks and give a local context
opj_set_event_mgr((opj_common_ptr) dinfo, &_openjpeg.event_mgr, stderr );
// setup the decoder decoding parameters using user parameters
opj_setup_decoder(dinfo, ¶meters);
if( !dinfo )
{
BOOST_THROW_EXCEPTION( exception::Unknown()
<< exception::dev( "Failed to open decoder for image." ) );
}
// open a byte stream
cio = opj_cio_open((opj_common_ptr)dinfo, _fileData, _dataLength);
if( !cio )
{
opj_destroy_decompress( dinfo );
BOOST_THROW_EXCEPTION( exception::Unknown()
<< exception::dev( "Failed to open decoder for image." ) );
}
// Start decoding to get an image
if( _openjpeg.image )
{
opj_image_destroy( _openjpeg.image );
}
_openjpeg.image = opj_decode( dinfo, cio );
// close the byte stream
opj_destroy_decompress( dinfo );
opj_cio_close( cio );
if( !_openjpeg.image )
{
BOOST_THROW_EXCEPTION( exception::Unknown()
<< exception::dev( "Failed to decode image." ) );
}
}
static void set_default_parameters(opj_decompress_parameters* parameters)
{
if (parameters) {
memset(parameters, 0, sizeof(opj_decompress_parameters));
/* default decoding parameters (command line specific) */
parameters->decod_format = -1;
parameters->cod_format = -1;
/* default decoding parameters (core) */
opj_set_default_decoder_parameters(&(parameters->core));
}
}
OpenJPEG_setup(OpenJPEGReaderImpl *impl, opj_stream_t **stream,
opj_codec_t **codec, nrt_Error *error)
{
if (!NRT_IO_SUCCESS(nrt_IOInterface_seek(impl->io,
impl->ioOffset,
NRT_SEEK_SET,
error)))
{
goto CATCH_ERROR;
}
if (!(*stream = OpenJPEG_createIO(impl->io, &impl->userData, 0, 1, error)))
{
goto CATCH_ERROR;
}
if (!(*codec = opj_create_decompress(OPJ_CODEC_J2K)))
{
nrt_Error_init(error, "Error creating OpenJPEG codec", NRT_CTXT,
NRT_ERR_INVALID_OBJECT);
goto CATCH_ERROR;
}
memset(error->message, 0, NRT_MAX_EMESSAGE);
if(!opj_set_error_handler(*codec,
OpenJPEG_errorHandler,
error))
{
nrt_Error_init(error, "Unable to set OpenJPEG error handler", NRT_CTXT,
NRT_ERR_UNK);
goto CATCH_ERROR;
}
opj_set_default_decoder_parameters(&impl->parameters);
if (!opj_setup_decoder(*codec, &impl->parameters))
{
/*nrt_Error_init(error, "Error setting up openjpeg decoder", NRT_CTXT,
NRT_ERR_UNK);*/
goto CATCH_ERROR;
}
return NRT_SUCCESS;
CATCH_ERROR:
{
OpenJPEG_cleanup(stream, codec, NULL);
return NRT_FAILURE;
}
}
static void
gst_openjpeg_dec_init (GstOpenJPEGDec * self)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) self;
gst_video_decoder_set_packetized (decoder, TRUE);
gst_video_decoder_set_needs_format (decoder, TRUE);
gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
(self), TRUE);
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (self));
opj_set_default_decoder_parameters (&self->params);
#ifdef HAVE_OPENJPEG_1
self->params.cp_limit_decoding = NO_LIMITATION;
#endif
}
bool DotNetDecodeWithInfo(MarshalledImage* image)
{
opj_dparameters dparameters;
opj_codestream_info_t info;
try
{
opj_set_default_decoder_parameters(&dparameters);
opj_dinfo_t* dinfo = opj_create_decompress(CODEC_J2K);
opj_setup_decoder(dinfo, &dparameters);
opj_cio* cio = opj_cio_open((opj_common_ptr)dinfo, image->encoded, image->length);
opj_image* jp2_image = opj_decode_with_info(dinfo, cio, &info); // decode happens here
if (jp2_image == NULL)
throw "opj_decode failed";
// maximum number of decompositions
int max_numdecompos = 0;
for (int compno = 0; compno < info.numcomps; compno++)
{
if (max_numdecompos < info.numdecompos[compno])
max_numdecompos = info.numdecompos[compno];
}
image->width = jp2_image->x1 - jp2_image->x0;
image->height = jp2_image->y1 - jp2_image->y0;
image->layers = info.numlayers;
image->resolutions = max_numdecompos + 1;
image->components = info.numcomps;
image->packet_count = info.packno;
image->packets = info.tile->packet;
int n = image->width * image->height;
image->decoded = new unsigned char[n * image->components];
for (int i = 0; i < image->components; i++)
std::copy(jp2_image->comps[i].data, jp2_image->comps[i].data + n, image->decoded + i * n);
opj_image_destroy(jp2_image);
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
return true;
}
catch (...)
{
return false;
}
}
void JPXStream::init2(unsigned char *buf, int bufLen, OPJ_CODEC_FORMAT format)
{
opj_cio_t *cio = NULL;
/* Use default decompression parameters */
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
/* Configure the event manager to receive errors and warnings */
opj_event_mgr_t event_mgr;
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = libopenjpeg_error_callback;
event_mgr.warning_handler = libopenjpeg_warning_callback;
/* Get the decoder handle of the format */
dinfo = opj_create_decompress(format);
if (dinfo == NULL) goto error;
/* Catch events using our callbacks */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, NULL);
/* Setup the decoder decoding parameters */
opj_setup_decoder(dinfo, ¶meters);
/* Open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, buf, bufLen);
if (cio == NULL) goto error;
/* Decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
/* Close the byte stream */
opj_cio_close(cio);
if (image == NULL) goto error;
else return;
error:
if (format == CODEC_JP2) {
error(-1, "Did no succeed opening JPX Stream as JP2, trying as J2K.");
init2(buf, bufLen, CODEC_J2K);
} else if (format == CODEC_J2K) {
error(-1, "Did no succeed opening JPX Stream as J2K, trying as JPT.");
init2(buf, bufLen, CODEC_JPT);
} else {
error(-1, "Did no succeed opening JPX Stream.");
}
}
JP2KImage read_jp2k_data(unsigned char* data, int len, int format)
{
JP2KImage jp;
init_jp2k(&jp);
opj_dinfo_t* codec = NULL;
opj_cio_t* stream = NULL;
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
if (format==JP2K_FMT_J2K) { // JPEG 2000 codestream
codec = opj_create_decompress(CODEC_J2K);
}
else if (format==JP2K_FMT_JP2) { // JPEG 2000 compressed image data
codec = opj_create_decompress(CODEC_JP2);
}
else if (format==JP2K_FMT_JPT) { // JPEG 2000 JPIP
codec = opj_create_decompress(CODEC_JPT);
}
else {
print_message("JBXL::readJPEG2KData: ERROR: unknown file format!\n");
jp.state = ERROR_GRAPH_NODATA;
return jp;
}
opj_setup_decoder(codec, ¶meters);
stream = opj_cio_open((opj_common_ptr)codec, data, len);
jp.image = opj_decode(codec, stream);
if (jp.image==NULL) {
opj_cio_close(stream);
opj_destroy_decompress(codec);
jp.state = ERROR_GRAPH_IVDDATA;
return jp;
}
setup_jp2k(&jp);
opj_cio_close(stream);
opj_destroy_decompress(codec);
return jp;
}
JNIEXPORT jintArray JNICALL Java_nl_kb_jp2_JP2Reader_getJp2Specs
(JNIEnv *env, jclass cls, jstring fname) {
const char *filename = (*env)->GetStringUTFChars(env, fname, 0);
jintArray ary = (*env)->NewIntArray(env, FIELD_LEN);
int data[FIELD_LEN];
int i = 0;
for(i = 0; i < FIELD_LEN; ++i) { data[i] = 0; }
data[0] = READ_FAILURE;
FILE *fptr = fopen(filename, "rb");
if(fptr != NULL && is_jp2(fptr)) {
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
struct opj_res resources = opj_init(filename, ¶meters);
opj_codestream_info_v2_t* info = get_info(&resources);
if(resources.status == 0) {
data[0] = READ_SUCCESS;
data[1] = resources.image->x1;
data[2] = resources.image->y1;
data[3] = info->tw;
data[4] = info->th;
data[5] = info->tdx;
data[6] = info->tdy;
data[7] = info->m_default_tile_info.tccp_info[0].numresolutions;
data[8] = resources.image->numcomps;
}
opj_cleanup(&resources);
} else {
error_callback("Cannot read file:", NULL);
error_callback(filename, NULL);
}
(*env)->SetIntArrayRegion(env, ary, 0, FIELD_LEN, data);
return ary;
}
bool _openslide_jp2k_decode_buffer(uint32_t *dest,
int32_t w, int32_t h,
void *data, int32_t datalen,
enum _openslide_jp2k_colorspace space,
GError **err) {
GError *tmp_err = NULL;
bool success = false;
// opj_cio_open interprets a NULL buffer as opening for write
g_assert(data != NULL);
// init decompressor
opj_cio_t *stream = NULL;
opj_dinfo_t *dinfo = NULL;
opj_image_t *image = NULL;
// note: don't use info_handler, it outputs lots of junk
opj_event_mgr_t event_callbacks = {
.error_handler = error_callback,
.warning_handler = warning_callback,
};
opj_dparameters_t parameters;
dinfo = opj_create_decompress(CODEC_J2K);
opj_set_default_decoder_parameters(¶meters);
opj_setup_decoder(dinfo, ¶meters);
stream = opj_cio_open((opj_common_ptr) dinfo, data, datalen);
opj_set_event_mgr((opj_common_ptr) dinfo, &event_callbacks, &tmp_err);
// decode
image = opj_decode(dinfo, stream);
// check error
if (tmp_err) {
g_propagate_error(err, tmp_err);
goto DONE;
}
// sanity check
if (image->numcomps != 3) {
g_set_error(err, OPENSLIDE_ERROR, OPENSLIDE_ERROR_FAILED,
"image->numcomps != 3");
goto DONE;
}
// TODO more checks?
unpack_argb(space, image->comps, dest, w, h);
success = true;
DONE:
if (image) {
opj_image_destroy(image);
}
if (stream) {
opj_cio_close(stream);
}
if (dinfo) {
opj_destroy_decompress(dinfo);
}
return success;
}
/* --------------------------------------------------------------------------
-------------------- MAIN METHOD, CALLED BY JAVA -----------------------*/
JNIEXPORT jint JNICALL Java_org_openJpeg_OpenJPEGJavaDecoder_internalDecodeJ2KtoImage(JNIEnv *env, jobject obj, jobjectArray javaParameters) {
int argc; /* To simulate the command line parameters (taken from the javaParameters variable) and be able to re-use the */
char **argv; /* 'parse_cmdline_decoder' method taken from the j2k_to_image project */
opj_dparameters_t parameters; /* decompression parameters */
img_fol_t img_fol;
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
FILE *fsrc = NULL;
unsigned char *src = NULL;
int file_length;
int num_images;
int i,j,imageno;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
int w,h;
long min_value, max_value;
short tempS; unsigned char tempUC, tempUC1, tempUC2;
/* ==> Access variables to the Java member variables*/
jsize arraySize;
jclass cls;
jobject object;
jboolean isCopy;
jfieldID fid;
jbyteArray jba;
jshortArray jsa;
jintArray jia;
jbyte *jbBody, *ptrBBody;
jshort *jsBody, *ptrSBody;
jint *jiBody, *ptrIBody;
callback_variables_t msgErrorCallback_vars;
/* <=== access variable to Java member variables */
int *ptr, *ptr1, *ptr2; /* <== To transfer the decoded image to Java*/
/* configure the event callbacks */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* JNI reference to the calling class*/
cls = (*env)->GetObjectClass(env, obj);
/* Pointers to be able to call a Java method for all the info and error messages*/
msgErrorCallback_vars.env = env;
msgErrorCallback_vars.jobj = &obj;
msgErrorCallback_vars.message_mid = (*env)->GetMethodID(env, cls, "logMessage", "(Ljava/lang/String;)V");
msgErrorCallback_vars.error_mid = (*env)->GetMethodID(env, cls, "logError", "(Ljava/lang/String;)V");
/* Get the String[] containing the parameters, and converts it into a char** to simulate command line arguments.*/
arraySize = (*env)->GetArrayLength(env, javaParameters);
argc = (int) arraySize +1;
argv = opj_malloc(argc*sizeof(char*));
argv[0] = "ProgramName.exe"; /* The program name: useless*/
j=0;
for (i=1; i<argc; i++) {
object = (*env)->GetObjectArrayElement(env, javaParameters, i-1);
argv[i] = (char*)(*env)->GetStringUTFChars(env, object, &isCopy);
}
/*printf("C: decoder params = ");
for (i=0; i<argc; i++) {
printf("[%s]",argv[i]);
}
printf("\n");*/
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
parameters.decod_format = J2K_CFMT;
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol) == 1) {
/* Release the Java arguments array*/
for (i=1; i<argc; i++)
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);
return -1;
}
/* Release the Java arguments array*/
for (i=1; i<argc; i++)
(*env)->ReleaseStringUTFChars(env, (*env)->GetObjectArrayElement(env, javaParameters, i-1), argv[i]);
num_images=1;
/* Get additional information from the Java object variables*/
fid = (*env)->GetFieldID(env, cls,"skippedResolutions", "I");
parameters.cp_reduce = (short) (*env)->GetIntField(env, obj, fid);
/*Decoding image one by one*/
for(imageno = 0; imageno < num_images ; imageno++)
{
image = NULL;
fprintf(stderr,"\n");
/* read the input file and put it in memory into the 'src' object, if the -i option is given in JavaParameters.
Implemented for debug purpose. */
/* -------------------------------------------------------------- */
if (parameters.infile && parameters.infile[0]!='\0') {
/*printf("C: opening [%s]\n", parameters.infile);*/
fsrc = fopen(parameters.infile, "rb");
if (!fsrc) {
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
return 1;
}
fseek(fsrc, 0, SEEK_END);
file_length = ftell(fsrc);
fseek(fsrc, 0, SEEK_SET);
src = (unsigned char *) opj_malloc(file_length);
fread(src, 1, file_length, fsrc);
fclose(fsrc);
/*printf("C: %d bytes read from file\n",file_length);*/
} else {
/* Preparing the transfer of the codestream from Java to C*/
/*printf("C: before transfering codestream\n");*/
fid = (*env)->GetFieldID(env, cls,"compressedStream", "[B");
jba = (*env)->GetObjectField(env, obj, fid);
file_length = (*env)->GetArrayLength(env, jba);
jbBody = (*env)->GetByteArrayElements(env, jba, &isCopy);
src = (unsigned char*)jbBody;
}
/* decode the code-stream */
/* ---------------------- */
switch(parameters.decod_format) {
case J2K_CFMT:
{
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
}
break;
case JP2_CFMT:
{
/* JPEG 2000 compressed image data */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JP2);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
/* setup the decoder decoding parameters using the current image and user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
}
break;
case JPT_CFMT:
{
/* JPEG 2000, JPIP */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JPT);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, &msgErrorCallback_vars);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
}
break;
default:
fprintf(stderr, "skipping file..\n");
continue;
}
/* free the memory containing the code-stream */
if (parameters.infile && parameters.infile[0]!='\0') {
opj_free(src);
} else {
(*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);
}
src = NULL;
/* create output image.
If the -o parameter is given in the JavaParameters, write the decoded version into a file.
Implemented for debug purpose. */
/* ---------------------------------- */
switch (parameters.cod_format) {
case PXM_DFMT: /* PNM PGM PPM */
if (imagetopnm(image, parameters.outfile)) {
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case PGX_DFMT: /* PGX */
if(imagetopgx(image, parameters.outfile)){
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case BMP_DFMT: /* BMP */
if(imagetobmp(image, parameters.outfile)){
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
}
/* ========= Return the image to the Java structure ===============*/
#ifdef CHECK_THRESHOLDS
printf("C: checking thresholds\n");
#endif
/* First compute the real with and height, in function of the resolutions decoded.*/
/*wr = (image->comps[0].w + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;*/
/*hr = (image->comps[0].h + (1 << image->comps[0].factor) -1) >> image->comps[0].factor;*/
w = image->comps[0].w;
h = image->comps[0].h;
if (image->numcomps==3) { /* 3 components color image*/
ptr = image->comps[0].data;
ptr1 = image->comps[1].data;
ptr2 = image->comps[2].data;
#ifdef CHECK_THRESHOLDS
if (image->comps[0].sgnd) {
min_value = -128;
max_value = 127;
} else {
min_value = 0;
max_value = 255;
}
#endif
/* Get the pointer to the Java structure where the data must be copied*/
fid = (*env)->GetFieldID(env, cls,"image24", "[I");
jia = (*env)->GetObjectField(env, obj, fid);
jiBody = (*env)->GetIntArrayElements(env, jia, 0);
ptrIBody = jiBody;
printf("C: transfering image24: %d int to Java pointer=%d\n",image->numcomps*w*h, ptrIBody);
for (i=0; i<w*h; i++) {
tempUC = (unsigned char)(ptr[i]);
tempUC1 = (unsigned char)(ptr1[i]);
tempUC2 = (unsigned char)(ptr2[i]);
#ifdef CHECK_THRESHOLDS
if (tempUC < min_value)
tempUC=min_value;
else if (tempUC > max_value)
tempUC=max_value;
if (tempUC1 < min_value)
tempUC1=min_value;
else if (tempUC1 > max_value)
tempUC1=max_value;
if (tempUC2 < min_value)
tempUC2=min_value;
else if (tempUC2 > max_value)
tempUC2=max_value;
#endif
*(ptrIBody++) = (int) ( (tempUC2<<16) + (tempUC1<<8) + tempUC );
}
(*env)->ReleaseIntArrayElements(env, jia, jiBody, 0);
} else { /* 1 component 8 or 16 bpp image*/
ptr = image->comps[0].data;
printf("C: before transfering a %d bpp image to java (length = %d)\n",image->comps[0].prec ,w*h);
if (image->comps[0].prec<=8) {
fid = (*env)->GetFieldID(env, cls,"image8", "[B");
jba = (*env)->GetObjectField(env, obj, fid);
jbBody = (*env)->GetByteArrayElements(env, jba, 0);
ptrBBody = jbBody;
#ifdef CHECK_THRESHOLDS
if (image->comps[0].sgnd) {
min_value = -128;
max_value = 127;
} else {
min_value = 0;
max_value = 255;
}
#endif
/*printf("C: transfering %d shorts to Java image8 pointer = %d\n", wr*hr,ptrSBody);*/
for (i=0; i<w*h; i++) {
tempUC = (unsigned char) (ptr[i]);
#ifdef CHECK_THRESHOLDS
if (tempUC<min_value)
tempUC = min_value;
else if (tempUC > max_value)
tempUC = max_value;
#endif
*(ptrBBody++) = tempUC;
}
(*env)->ReleaseByteArrayElements(env, jba, jbBody, 0);
printf("C: image8 transfered to Java\n");
} else {
fid = (*env)->GetFieldID(env, cls,"image16", "[S");
jsa = (*env)->GetObjectField(env, obj, fid);
jsBody = (*env)->GetShortArrayElements(env, jsa, 0);
ptrSBody = jsBody;
#ifdef CHECK_THRESHOLDS
if (image->comps[0].sgnd) {
min_value = -32768;
max_value = 32767;
} else {
min_value = 0;
max_value = 65535;
}
printf("C: minValue = %d, maxValue = %d\n", min_value, max_value);
#endif
printf("C: transfering %d shorts to Java image16 pointer = %d\n", w*h,ptrSBody);
for (i=0; i<w*h; i++) {
tempS = (short) (ptr[i]);
#ifdef CHECK_THRESHOLDS
if (tempS<min_value) {
printf("C: value %d truncated to %d\n", tempS, min_value);
tempS = min_value;
} else if (tempS > max_value) {
printf("C: value %d truncated to %d\n", tempS, max_value);
tempS = max_value;
}
#endif
*(ptrSBody++) = tempS;
}
(*env)->ReleaseShortArrayElements(env, jsa, jsBody, 0);
printf("C: image16 completely filled\n");
}
}
/* free remaining structures */
if(dinfo) {
opj_destroy_decompress(dinfo);
}
/* free image data structure */
opj_image_destroy(image);
}
return 1; /* OK */
}
int main (int argc, char *argv[])
{
opj_dparameters_t l_param;
opj_codec_t * l_codec;
opj_image_t * l_image;
FILE * l_file;
opj_stream_t * l_stream;
OPJ_UINT32 l_data_size;
OPJ_UINT32 l_max_data_size = 1000;
OPJ_UINT32 l_tile_index;
OPJ_BYTE * l_data = (OPJ_BYTE *) malloc(1000);
opj_bool l_go_on = OPJ_TRUE;
OPJ_INT32 l_tile_x0,l_tile_y0;
OPJ_UINT32 l_tile_width,l_tile_height,l_nb_tiles_x,l_nb_tiles_y,l_nb_comps;
OPJ_INT32 l_current_tile_x0,l_current_tile_y0,l_current_tile_x1,l_current_tile_y1;
int da_x0=0;
int da_y0=0;
int da_x1=1000;
int da_y1=1000;
char input_file[64];
/* should be test_tile_decoder 0 0 1000 1000 tte1.j2k */
if( argc == 6 )
{
da_x0=atoi(argv[1]);
da_y0=atoi(argv[2]);
da_x1=atoi(argv[3]);
da_y1=atoi(argv[4]);
strcpy(input_file,argv[5]);
}
else
{
da_x0=0;
da_y0=0;
da_x1=1000;
da_y1=1000;
strcpy(input_file,"test.j2k");
}
if
(! l_data)
{
return 1;
}
opj_set_default_decoder_parameters(&l_param);
/** you may here add custom decoding parameters */
/* do not use layer decoding limitations */
l_param.cp_layer = 0;
/* do not use resolutions reductions */
l_param.cp_reduce = 0;
/* to decode only a part of the image data */
//opj_restrict_decoding(&l_param,0,0,1000,1000);
l_codec = opj_create_decompress_v2(CODEC_J2K);
if
(! l_codec)
{
free(l_data);
return 1;
}
/* 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);
if
(! opj_setup_decoder_v2(l_codec,&l_param))
{
free(l_data);
opj_destroy_codec(l_codec);
return 1;
}
l_file = fopen(input_file,"rb");
if
(! l_file)
{
fprintf(stdout, "Error opening input file\n");
free(l_data);
opj_destroy_codec(l_codec);
return 1;
}
l_stream = opj_stream_create_default_file_stream(l_file,OPJ_TRUE);
if
(! opj_read_header(l_stream, l_codec, &l_image))
{
free(l_data);
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
return 1;
}
printf("Setting decoding area to %d,%d,%d,%d\n", da_x0, da_y0, da_x1, da_y1);
opj_set_decode_area(l_codec, l_image, da_x0, da_y0, da_x1, da_y1);
while
(l_go_on)
{
if
(! opj_read_tile_header(
l_codec,
l_stream,
&l_tile_index,
&l_data_size,
&l_current_tile_x0,
&l_current_tile_y0,
&l_current_tile_x1,
&l_current_tile_y1,
&l_nb_comps,
&l_go_on))
{
free(l_data);
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
opj_image_destroy(l_image);
return 1;
}
if
(l_go_on)
{
if
(l_data_size > l_max_data_size)
{
l_data = (OPJ_BYTE *) realloc(l_data,l_data_size);
if
(! l_data)
{
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
opj_image_destroy(l_image);
return 1;
}
l_max_data_size = l_data_size;
}
if
(! opj_decode_tile_data(l_codec,l_tile_index,l_data,l_data_size,l_stream))
{
free(l_data);
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
opj_image_destroy(l_image);
return 1;
}
/** now should inspect image to know the reduction factor and then how to behave with data */
}
}
if
(! opj_end_decompress(l_codec,l_stream))
{
free(l_data);
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
opj_image_destroy(l_image);
return 1;
}
free(l_data);
opj_stream_destroy(l_stream);
fclose(l_file);
opj_destroy_codec(l_codec);
opj_image_destroy(l_image);
// Print profiling
//PROFPRINT();
return 0;
}
fz_pixmap *
fz_load_jpx(fz_context *ctx, unsigned char *data, int size, fz_colorspace *defcs)
{
fz_pixmap *img;
opj_event_mgr_t evtmgr;
opj_dparameters_t params;
opj_dinfo_t *info;
opj_cio_t *cio;
opj_image_t *jpx;
fz_colorspace *colorspace;
unsigned char *p;
int format;
int a, n, w, h, depth, sgnd;
int x, y, k, v;
if (size < 2)
fz_throw(ctx, "not enough data to determine image format");
/* Check for SOC marker -- if found we have a bare J2K stream */
if (data[0] == 0xFF && data[1] == 0x4F)
format = CODEC_J2K;
else
format = CODEC_JP2;
memset(&evtmgr, 0, sizeof(evtmgr));
evtmgr.error_handler = fz_opj_error_callback;
evtmgr.warning_handler = fz_opj_warning_callback;
evtmgr.info_handler = fz_opj_info_callback;
opj_set_default_decoder_parameters(¶ms);
info = opj_create_decompress(format);
opj_set_event_mgr((opj_common_ptr)info, &evtmgr, ctx);
opj_setup_decoder(info, ¶ms);
cio = opj_cio_open((opj_common_ptr)info, data, size);
jpx = opj_decode(info, cio);
opj_cio_close(cio);
opj_destroy_decompress(info);
if (!jpx)
fz_throw(ctx, "opj_decode failed");
for (k = 1; k < jpx->numcomps; k++)
{
if (jpx->comps[k].w != jpx->comps[0].w)
fz_throw(ctx, "image components have different width");
if (jpx->comps[k].h != jpx->comps[0].h)
fz_throw(ctx, "image components have different height");
if (jpx->comps[k].prec != jpx->comps[0].prec)
fz_throw(ctx, "image components have different precision");
}
n = jpx->numcomps;
w = jpx->comps[0].w;
h = jpx->comps[0].h;
depth = jpx->comps[0].prec;
sgnd = jpx->comps[0].sgnd;
if (jpx->color_space == CLRSPC_SRGB && n == 4) { n = 3; a = 1; }
else if (jpx->color_space == CLRSPC_SYCC && n == 4) { n = 3; a = 1; }
else if (n == 2) { n = 1; a = 1; }
else if (n > 4) { n = 4; a = 1; }
else { a = 0; }
if (defcs)
{
if (defcs->n == n)
{
colorspace = defcs;
}
else
{
fz_warn(ctx, "jpx file and dict colorspaces do not match");
defcs = NULL;
}
}
if (!defcs)
{
switch (n)
{
case 1: colorspace = fz_device_gray; break;
case 3: colorspace = fz_device_rgb; break;
case 4: colorspace = fz_device_cmyk; break;
}
}
fz_try(ctx)
{
img = fz_new_pixmap(ctx, colorspace, w, h);
}
fz_catch(ctx)
{
opj_image_destroy(jpx);
fz_throw(ctx, "out of memory");
}
p = img->samples;
for (y = 0; y < h; y++)
{
for (x = 0; x < w; x++)
{
for (k = 0; k < n + a; k++)
{
v = jpx->comps[k].data[y * w + x];
if (sgnd)
v = v + (1 << (depth - 1));
if (depth > 8)
v = v >> (depth - 8);
*p++ = v;
}
if (!a)
*p++ = 255;
}
}
if (a)
{
if (n == 4)
{
fz_pixmap *tmp = fz_new_pixmap(ctx, fz_device_rgb, w, h);
fz_convert_pixmap(ctx, img, tmp);
fz_drop_pixmap(ctx, img);
img = tmp;
}
fz_premultiply_pixmap(ctx, img);
}
opj_image_destroy(jpx);
return img;
}
BOOL LLImageJ2COJ::getMetadata(LLImageJ2C &base)
{
//
// FIXME: We get metadata by decoding the ENTIRE image.
//
// Update the raw discard level
base.updateRawDiscardLevel();
opj_dparameters_t parameters; /* decompression parameters */
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
/* configure the event callbacks (not required) */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
// Only decode what's required to get the size data.
parameters.cp_limit_decoding=LIMIT_TO_MAIN_HEADER;
//parameters.cp_reduce = mRawDiscardLevel;
/* decode the code-stream */
/* ---------------------- */
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, base.getData(), base.getDataSize());
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
/* close the byte stream */
opj_cio_close(cio);
/* free remaining structures */
if(dinfo)
{
opj_destroy_decompress(dinfo);
}
if(!image)
{
llwarns << "ERROR -> getMetadata: failed to decode image!" << llendl;
return FALSE;
}
// Copy image data into our raw image format (instead of the separate channel format
S32 width = 0;
S32 height = 0;
S32 img_components = image->numcomps;
width = image->x1 - image->x0;
height = image->y1 - image->y0;
base.setSize(width, height, img_components);
/* free image data structure */
opj_image_destroy(image);
return TRUE;
}
int GP_ReadJP2Ex(GP_IO *io, GP_Context **rimg, GP_DataStorage *storage,
GP_ProgressCallback *callback)
{
opj_dparameters_t params;
opj_codec_t *codec;
opj_stream_t *stream;
opj_image_t *img;
GP_PixelType pixel_type;
GP_Context *res = NULL;
unsigned int i, x, y;
int err = 0, ret = 1;
opj_set_default_decoder_parameters(¶ms);
codec = opj_create_decompress(OPJ_CODEC_JP2);
if (!codec) {
GP_DEBUG(1, "opj_create_decompress failed");
err = ENOMEM;
goto err0;
}
opj_set_error_handler(codec, jp2_err_callback, NULL);
opj_set_warning_handler(codec, jp2_warn_callback, NULL);
opj_set_info_handler(codec, jp2_info_callback, callback);
if (!opj_setup_decoder(codec, ¶ms)) {
GP_DEBUG(1, "opj_setup_decoder failed");
err = ENOMEM;
goto err1;
}
stream = opj_stream_default_create(OPJ_TRUE);
if (!stream) {
GP_DEBUG(1, "opj_stream_create_default_file_stream faled");
err = ENOMEM;
goto err1;
}
//TODO: Do we need seek and skip?
opj_stream_set_read_function(stream, jp2_io_read);
opj_stream_set_user_data(stream, io);
if (!opj_read_header(stream, codec, &img)) {
GP_DEBUG(1, "opj_read_header failed");
err = EINVAL;
goto err2;
}
if (storage)
fill_metadata(img, storage);
GP_DEBUG(1, "Have image %ux%u-%ux%u colorspace=%s numcomps=%u",
img->x0, img->y0, img->x1, img->y1,
color_space_name(img->color_space), img->numcomps);
if (!rimg)
return 0;
/*
* Try to match the image information into pixel type.
*
* Unfortunately the images I had have color_space set
* to unspecified yet they were RGB888.
*/
for (i = 0; i < img->numcomps; i++) {
opj_image_comp_t *comp = &img->comps[i];
GP_DEBUG(2, "Component %u %ux%u bpp=%u",
i, comp->w, comp->h, comp->prec);
if (comp->w != img->comps[0].w ||
comp->h != img->comps[0].h) {
GP_DEBUG(1, "Component %u has different size", 1);
err = ENOSYS;
goto err3;
}
if (comp->prec != 8) {
GP_DEBUG(1, "Component %u has different bpp", 1);
err = ENOSYS;
goto err3;
}
}
switch (img->color_space) {
case OPJ_CLRSPC_UNSPECIFIED:
if (img->numcomps != 3) {
GP_DEBUG(1, "Unexpected number of components");
err = ENOSYS;
goto err3;
}
pixel_type = GP_PIXEL_RGB888;
break;
default:
GP_DEBUG(1, "Unsupported colorspace");
err = ENOSYS;
goto err3;
}
GP_ProgressCallbackReport(callback, 0, 100, 100);
if (!opj_decode(codec, stream, img)) {
GP_DEBUG(1, "opj_decode failed");
err = EINVAL;
goto err3;
}
res = GP_ContextAlloc(img->comps[0].w, img->comps[0].h, pixel_type);
if (!res) {
GP_DEBUG(1, "Malloc failed :(");
err = ENOMEM;
goto err3;
}
for (y = 0; y < res->h; y++) {
for (x = 0; x < res->w; x++) {
i = y * res->w + x;
GP_Pixel p = img->comps[0].data[i] << 16|
img->comps[1].data[i] << 8 |
img->comps[2].data[i];
GP_PutPixel_Raw_24BPP(res, x, y, p);
}
}
GP_ProgressCallbackDone(callback);
*rimg = res;
ret = 0;
err3:
opj_image_destroy(img);
err2:
opj_stream_destroy(stream);
err1:
opj_destroy_codec(codec);
err0:
if (err)
errno = err;
return ret;
}
JP2KImage read_jp2k_data(const char* fname, int format)
#endif
{
JP2KImage jp;
init_jp2k(&jp);
opj_stream_t* stream = NULL;
opj_codec_t* codec = NULL;
opj_dparameters_t parameters;
opj_set_default_decoder_parameters(¶meters);
#if OPENJPEG_VER < JP2K_VER_21
stream = opj_stream_create_default_file_stream(fp, 1); // 2.0.0
#else
stream = opj_stream_create_default_file_stream(fname, 1); // 2.1.0
#endif
if (stream==NULL){
jp.state = ERROR_GRAPH_RDFILE;
return jp;
}
if (format==JP2K_FMT_J2K) { // JPEG 2000 codestream
codec = opj_create_decompress(OPJ_CODEC_J2K);
}
else if (format==JP2K_FMT_JP2) { // JPEG 2000 compressed image data
codec = opj_create_decompress(OPJ_CODEC_JP2);
}
else if (format==JP2K_FMT_JPT) { // JPEG 2000 JPIP
codec = opj_create_decompress(OPJ_CODEC_JPT);
}
else {
print_message("JBXL::readJPEG2KData: ERROR: unknown file format!\n");
opj_stream_destroy(stream);
return jp;
}
if (!opj_setup_decoder(codec, ¶meters) ){
opj_stream_destroy(stream);
opj_destroy_codec(codec);
jp.state = ERROR_GRAPH;
return jp;
}
if (!opj_read_header(stream, codec, &jp.image)){
opj_stream_destroy(stream);
opj_destroy_codec(codec);
jp.state = ERROR_GRAPH;
return jp;
}
if (!opj_set_decode_area(codec, jp.image, 0, 0, 0, 0)){
opj_stream_destroy(stream);
opj_destroy_codec(codec);
free_jp2k(&jp);
jp.state = ERROR_GRAPH;
return jp;
}
if (!(opj_decode(codec, stream, jp.image) && opj_end_decompress(codec, stream))) {
opj_destroy_codec(codec);
opj_stream_destroy(stream);
free_jp2k(&jp);
jp.state = ERROR_GRAPH;
return jp;
}
setup_jp2k(&jp);
opj_stream_destroy(stream);
opj_destroy_codec(codec);
return jp;
}
int main(int argc, char *argv[])
{
int ret;
opj_dparameters_t parameters; /* decompression parameters */
img_fol_t img_fol;
opj_image_t *image = NULL;
FILE *fsrc = NULL;
bool bResult;
int num_images;
int i,imageno;
dircnt_t *dirptr;
opj_codec_t* dinfo = NULL; /* handle to a decompressor */
opj_stream_t *cio = NULL;
opj_codestream_info_t cstr_info; /* Codestream information structure */
char indexfilename[OPJ_PATH_LEN]; /* index file name */
OPJ_INT32 l_tile_x0,l_tile_y0;
OPJ_UINT32 l_tile_width,l_tile_height,l_nb_tiles_x,l_nb_tiles_y;
/* configure the event callbacks (not required) */
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
/* Initialize indexfilename and img_fol */
*indexfilename = 0;
memset(&img_fol,0,sizeof(img_fol_t));
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol, indexfilename) == 1) {
return EXIT_FAILURE;
}
/* Initialize reading of directory */
if(img_fol.set_imgdir==1){
num_images=get_num_images(img_fol.imgdirpath);
dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
if(dirptr){
dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char)); // Stores at max 10 image file names
dirptr->filename = (char**) malloc(num_images*sizeof(char*));
if(!dirptr->filename_buf){
return EXIT_FAILURE;
}
for(i=0;i<num_images;i++){
dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
}
}
if(load_images(dirptr,img_fol.imgdirpath)==1){
return EXIT_FAILURE;
}
if (num_images==0){
fprintf(stdout,"Folder is empty\n");
return EXIT_FAILURE;
}
}else{
num_images=1;
}
/*Encoding image one by one*/
for(imageno = 0; imageno < num_images ; imageno++)
{
image = NULL;
fprintf(stderr,"\n");
if(img_fol.set_imgdir==1){
if (get_next_file(imageno, dirptr,&img_fol, ¶meters)) {
fprintf(stderr,"skipping file...\n");
continue;
}
}
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(parameters.infile, "rb");
if (!fsrc) {
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
return EXIT_FAILURE;
}
cio = opj_stream_create_default_file_stream(fsrc,true);
/* decode the code-stream */
/* ---------------------- */
switch (parameters.decod_format)
{
case J2K_CFMT:
{
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
break;
}
case JP2_CFMT:
{
/* JPEG 2000 compressed image data */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JP2);
break;
}
case JPT_CFMT:
{
/* JPEG 2000, JPIP */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JPT);
break;
}
default:
fprintf(stderr, "skipping file..\n");
opj_stream_destroy(cio);
continue;
}
/* catch events using our callbacks and give a local context */
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* decode the stream and fill the image structure */
/* if (*indexfilename) // If need to extract codestream information
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
*/
bResult = opj_read_header(
dinfo,
&image,
&l_tile_x0,
&l_tile_y0,
&l_tile_width,
&l_tile_height,
&l_nb_tiles_x,
&l_nb_tiles_y,
cio);
//image = opj_decode(dinfo, cio);
//bResult = bResult && (image != 00);
//bResult = bResult && opj_end_decompress(dinfo,cio);
//if
// (!image)
//{
// fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
// opj_destroy_codec(dinfo);
// opj_stream_destroy(cio);
// fclose(fsrc);
// return EXIT_FAILURE;
//}
/* dump image */
if(!image)
{
fprintf(stderr, "ERROR -> j2k_to_image: failed to read header\n");
return EXIT_FAILURE;
}
j2k_dump_image(stdout, image);
/* dump cp */
//j2k_dump_cp(stdout, image, dinfo->m_codec);
/* close the byte stream */
opj_stream_destroy(cio);
fclose(fsrc);
/* Write the index to disk */
if (*indexfilename) {
char bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
ret = EXIT_FAILURE;
}
}
/* free remaining structures */
if (dinfo) {
opj_destroy_codec(dinfo);
}
/* free codestream information structure */
if (*indexfilename)
opj_destroy_cstr_info(&cstr_info);
/* free image data structure */
opj_image_destroy(image);
}
return ret;
}
int main(int argc, char *argv[])
{
opj_dparameters_t parameters; /* decompression parameters */
img_fol_t img_fol;
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
FILE *fsrc = NULL, *fout = NULL;
unsigned char *src = NULL;
int file_length;
int num_images;
int i,imageno;
dircnt_t *dirptr = NULL;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
opj_codestream_info_t cstr_info; /* Codestream information structure */
char indexfilename[OPJ_PATH_LEN]; /* index file name */
/* configure the event callbacks (not required) */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
/* Initialize indexfilename and img_fol */
*indexfilename = 0;
memset(&img_fol,0,sizeof(img_fol_t));
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol, indexfilename) == 1) {
return 1;
}
/* Initialize reading of directory */
if(img_fol.set_imgdir==1){
num_images=get_num_images(img_fol.imgdirpath);
dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
if(dirptr){
dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char)); /* Stores at max 10 image file names*/
dirptr->filename = (char**) malloc(num_images*sizeof(char*));
if(!dirptr->filename_buf){
return 1;
}
for(i=0;i<num_images;i++){
dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
}
}
if(load_images(dirptr,img_fol.imgdirpath)==1){
return 1;
}
if (num_images==0){
fprintf(stdout,"Folder is empty\n");
return 1;
}
}else{
num_images=1;
}
/* */
if (parameters.outfile[0] != 0)
{
fout = fopen(parameters.outfile,"w");
if (!fout)
{
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.outfile);
return 1;
}
}
else
fout = stdout;
/*Encoding image one by one*/
for(imageno = 0; imageno < num_images ; imageno++)
{
image = NULL;
fprintf(stderr,"\n");
if(img_fol.set_imgdir==1){
if (get_next_file(imageno, dirptr,&img_fol, ¶meters)) {
fprintf(stderr,"skipping file...\n");
continue;
}
}
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(parameters.infile, "rb");
if (!fsrc) {
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
return 1;
}
fseek(fsrc, 0, SEEK_END);
file_length = ftell(fsrc);
fseek(fsrc, 0, SEEK_SET);
src = (unsigned char *) malloc(file_length);
if (fread(src, 1, file_length, fsrc) != (size_t)file_length)
{
free(src);
fclose(fsrc);
fclose(fout);
fprintf(stderr, "\nERROR: fread return a number of element different from the expected.\n");
return 1;
}
fclose(fsrc);
/* decode the code-stream */
/* ---------------------- */
switch(parameters.decod_format) {
case J2K_CFMT:
{
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
fclose(fout);
free(src);
return 1;
}
/* dump image */
j2k_dump_image(fout, image);
/* dump cp */
j2k_dump_cp(fout, image, ((opj_j2k_t*)dinfo->j2k_handle)->cp);
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
case JP2_CFMT:
{
/* JPEG 2000 compressed image data */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JP2);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using the current image and user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
fclose(fout);
free(src);
return 1;
}
/* dump image */
if(image->icc_profile_buf)
{
free(image->icc_profile_buf); image->icc_profile_buf = NULL;
}
j2k_dump_image(fout, image);
/* dump cp */
j2k_dump_cp(fout, image, ((opj_jp2_t*)dinfo->jp2_handle)->j2k->cp);
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
case JPT_CFMT:
{
/* JPEG 2000, JPIP */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JPT);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
fclose(fout);
free(src);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
default:
fprintf(stderr, "skipping file..\n");
continue;
}
/* free the memory containing the code-stream */
free(src);
src = NULL;
/* free remaining structures */
if(dinfo) {
opj_destroy_decompress(dinfo);
}
/* free codestream information structure */
if (*indexfilename)
opj_destroy_cstr_info(&cstr_info);
/* free image data structure */
opj_image_destroy(image);
}
fclose(fout);
return EXIT_SUCCESS;
}
static Image *ReadJP2Image(const ImageInfo *image_info,ExceptionInfo *exception)
{
const char
*option;
Image
*image;
int
jp2_status;
MagickBooleanType
status;
opj_codec_t
*jp2_codec;
opj_codestream_index_t
*codestream_index = (opj_codestream_index_t *) NULL;
opj_dparameters_t
parameters;
opj_image_t
*jp2_image;
opj_stream_t
*jp2_stream;
register ssize_t
i;
ssize_t
y;
unsigned char
sans[4];
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickCoreSignature);
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
/*
Initialize JP2 codec.
*/
if (ReadBlob(image,4,sans) != 4)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
(void) SeekBlob(image,SEEK_SET,0);
if (LocaleCompare(image_info->magick,"JPT") == 0)
jp2_codec=opj_create_decompress(OPJ_CODEC_JPT);
else
if (IsJ2K(sans,4) != MagickFalse)
jp2_codec=opj_create_decompress(OPJ_CODEC_J2K);
else
jp2_codec=opj_create_decompress(OPJ_CODEC_JP2);
opj_set_warning_handler(jp2_codec,JP2WarningHandler,exception);
opj_set_error_handler(jp2_codec,JP2ErrorHandler,exception);
opj_set_default_decoder_parameters(¶meters);
option=GetImageOption(image_info,"jp2:reduce-factor");
if (option != (const char *) NULL)
parameters.cp_reduce=StringToInteger(option);
option=GetImageOption(image_info,"jp2:quality-layers");
if (option != (const char *) NULL)
parameters.cp_layer=StringToInteger(option);
if (opj_setup_decoder(jp2_codec,¶meters) == 0)
{
opj_destroy_codec(jp2_codec);
ThrowReaderException(DelegateError,"UnableToManageJP2Stream");
}
jp2_stream=opj_stream_create(OPJ_J2K_STREAM_CHUNK_SIZE,1);
opj_stream_set_read_function(jp2_stream,JP2ReadHandler);
opj_stream_set_write_function(jp2_stream,JP2WriteHandler);
opj_stream_set_seek_function(jp2_stream,JP2SeekHandler);
opj_stream_set_skip_function(jp2_stream,JP2SkipHandler);
opj_stream_set_user_data(jp2_stream,image,NULL);
opj_stream_set_user_data_length(jp2_stream,GetBlobSize(image));
if (opj_read_header(jp2_stream,jp2_codec,&jp2_image) == 0)
{
opj_stream_destroy(jp2_stream);
opj_destroy_codec(jp2_codec);
ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
}
jp2_status=1;
if ((image->columns != 0) && (image->rows != 0))
{
/*
Extract an area from the image.
*/
jp2_status=opj_set_decode_area(jp2_codec,jp2_image,
(OPJ_INT32) image->extract_info.x,(OPJ_INT32) image->extract_info.y,
(OPJ_INT32) (image->extract_info.x+(ssize_t) image->columns),
(OPJ_INT32) (image->extract_info.y+(ssize_t) image->rows));
if (jp2_status == 0)
{
opj_stream_destroy(jp2_stream);
opj_destroy_codec(jp2_codec);
opj_image_destroy(jp2_image);
ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
}
}
if ((image_info->number_scenes != 0) && (image_info->scene != 0))
jp2_status=opj_get_decoded_tile(jp2_codec,jp2_stream,jp2_image,
(unsigned int) image_info->scene-1);
else
if (image->ping == MagickFalse)
{
jp2_status=opj_decode(jp2_codec,jp2_stream,jp2_image);
if (jp2_status != 0)
jp2_status=opj_end_decompress(jp2_codec,jp2_stream);
}
if (jp2_status == 0)
{
opj_stream_destroy(jp2_stream);
opj_destroy_codec(jp2_codec);
opj_image_destroy(jp2_image);
ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
}
opj_stream_destroy(jp2_stream);
for (i=0; i < (ssize_t) jp2_image->numcomps; i++)
{
if ((jp2_image->comps[i].dx == 0) || (jp2_image->comps[i].dy == 0))
{
opj_destroy_codec(jp2_codec);
opj_image_destroy(jp2_image);
ThrowReaderException(CoderError,"IrregularChannelGeometryNotSupported")
}
}
int main(int argc, char **argv) {
opj_dparameters_t parameters; /* decompression parameters */
img_fol_t img_fol;
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
FILE *fsrc = NULL;
unsigned char *src = NULL;
int file_length;
int num_images;
int i,imageno;
dircnt_t *dirptr = NULL;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
opj_codestream_info_t cstr_info; /* Codestream information structure */
char indexfilename[OPJ_PATH_LEN]; /* index file name */
/* configure the event callbacks (not required) */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
/* Initialize indexfilename and img_fol */
*indexfilename = 0;
memset(&img_fol,0,sizeof(img_fol_t));
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol, indexfilename) == 1) {
return 1;
}
/* Initialize reading of directory */
if(img_fol.set_imgdir==1){
num_images=get_num_images(img_fol.imgdirpath);
dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
if(dirptr){
dirptr->filename_buf = (char*)malloc(num_images*OPJ_PATH_LEN*sizeof(char)); /* Stores at max 10 image file names*/
dirptr->filename = (char**) malloc(num_images*sizeof(char*));
if(!dirptr->filename_buf){
return 1;
}
for(i=0;i<num_images;i++){
dirptr->filename[i] = dirptr->filename_buf + i*OPJ_PATH_LEN;
}
}
if(load_images(dirptr,img_fol.imgdirpath)==1){
return 1;
}
if (num_images==0){
fprintf(stdout,"Folder is empty\n");
return 1;
}
}else{
num_images=1;
}
/*Encoding image one by one*/
for(imageno = 0; imageno < num_images ; imageno++) {
image = NULL;
fprintf(stderr,"\n");
if(img_fol.set_imgdir==1){
if (get_next_file(imageno, dirptr,&img_fol, ¶meters)) {
fprintf(stderr,"skipping file...\n");
continue;
}
}
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(parameters.infile, "rb");
if (!fsrc) {
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
return 1;
}
fseek(fsrc, 0, SEEK_END);
file_length = ftell(fsrc);
fseek(fsrc, 0, SEEK_SET);
src = (unsigned char *) malloc(file_length);
if (fread(src, 1, file_length, fsrc) != (size_t)file_length)
{
free(src);
fclose(fsrc);
fprintf(stderr, "\nERROR: fread return a number of element different from the expected.\n");
return 1;
}
fclose(fsrc);
/* decode the code-stream */
/* ---------------------- */
switch(parameters.decod_format) {
case J2K_CFMT:
{
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
free(src);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
case JP2_CFMT:
{
/* JPEG 2000 compressed image data */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JP2);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using the current image and user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
free(src);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
case JPT_CFMT:
{
/* JPEG 2000, JPIP */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_JPT);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
if (*indexfilename) /* If need to extract codestream information*/
image = opj_decode_with_info(dinfo, cio, &cstr_info);
else
image = opj_decode(dinfo, cio);
if(!image) {
fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
opj_destroy_decompress(dinfo);
opj_cio_close(cio);
free(src);
return 1;
}
/* close the byte stream */
opj_cio_close(cio);
/* Write the index to disk */
if (*indexfilename) {
opj_bool bSuccess;
bSuccess = write_index_file(&cstr_info, indexfilename);
if (bSuccess) {
fprintf(stderr, "Failed to output index file\n");
}
}
}
break;
default:
fprintf(stderr, "skipping file..\n");
continue;
}
/* free the memory containing the code-stream */
free(src);
src = NULL;
if(image->color_space == CLRSPC_SYCC)
{
color_sycc_to_rgb(image);
}
if(image->icc_profile_buf)
{
#if defined(HAVE_LIBLCMS1) || defined(HAVE_LIBLCMS2)
color_apply_icc_profile(image);
#endif
free(image->icc_profile_buf);
image->icc_profile_buf = NULL; image->icc_profile_len = 0;
}
/* create output image */
/* ------------------- */
switch (parameters.cod_format) {
case PXM_DFMT: /* PNM PGM PPM */
if (imagetopnm(image, parameters.outfile)) {
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case PGX_DFMT: /* PGX */
if(imagetopgx(image, parameters.outfile)){
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case BMP_DFMT: /* BMP */
if(imagetobmp(image, parameters.outfile)){
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
#ifdef HAVE_LIBTIFF
case TIF_DFMT: /* TIFF */
if(imagetotif(image, parameters.outfile)){
fprintf(stdout,"Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
#endif /* HAVE_LIBTIFF */
case RAW_DFMT: /* RAW */
if(imagetoraw(image, parameters.outfile)){
fprintf(stdout,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
case TGA_DFMT: /* TGA */
if(imagetotga(image, parameters.outfile)){
fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
#ifdef HAVE_LIBPNG
case PNG_DFMT: /* PNG */
if(imagetopng(image, parameters.outfile)){
fprintf(stdout,"Error generating png file. Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
#endif /* HAVE_LIBPNG */
/* Can happen if output file is TIFF or PNG
* and HAVE_LIBTIF or HAVE_LIBPNG is undefined
*/
default:
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
}
/* free remaining structures */
if(dinfo) {
opj_destroy_decompress(dinfo);
}
/* free codestream information structure */
if (*indexfilename)
opj_destroy_cstr_info(&cstr_info);
/* free image data structure */
opj_image_destroy(image);
}
return 0;
}
/* -------------------------------------------------------------------------- */
int main(int argc, char **argv)
{
FILE *fsrc = NULL;
opj_dparameters_t parameters; /* decompression parameters */
opj_image_t* image = NULL;
opj_stream_t *l_stream = NULL; /* Stream */
opj_codec_t* l_codec = NULL; /* Handle to a decompressor */
opj_codestream_index_t* cstr_index = NULL;
char indexfilename[OPJ_PATH_LEN]; /* index file name */
OPJ_INT32 num_images, imageno;
img_fol_t img_fol;
dircnt_t *dirptr = NULL;
int failed = 0;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
/* FIXME Initialize indexfilename and img_fol */
*indexfilename = 0;
/* Initialize img_fol */
memset(&img_fol,0,sizeof(img_fol_t));
/* parse input and get user encoding parameters */
if(parse_cmdline_decoder(argc, argv, ¶meters,&img_fol, indexfilename) == 1) {
return EXIT_FAILURE;
}
/* Initialize reading of directory */
if(img_fol.set_imgdir==1){
int it_image;
num_images=get_num_images(img_fol.imgdirpath);
dirptr=(dircnt_t*)malloc(sizeof(dircnt_t));
if(dirptr){
dirptr->filename_buf = (char*)malloc((size_t)num_images*OPJ_PATH_LEN*sizeof(char)); /* Stores at max 10 image file names*/
dirptr->filename = (char**) malloc((size_t)num_images*sizeof(char*));
if(!dirptr->filename_buf){
return EXIT_FAILURE;
}
for(it_image=0;it_image<num_images;it_image++){
dirptr->filename[it_image] = dirptr->filename_buf + it_image*OPJ_PATH_LEN;
}
}
if(load_images(dirptr,img_fol.imgdirpath)==1){
return EXIT_FAILURE;
}
if (num_images==0){
fprintf(stdout,"Folder is empty\n");
return EXIT_FAILURE;
}
}else{
num_images=1;
}
/*Decoding image one by one*/
for(imageno = 0; imageno < num_images ; imageno++) {
fprintf(stderr,"\n");
if(img_fol.set_imgdir==1){
if (get_next_file(imageno, dirptr,&img_fol, ¶meters)) {
fprintf(stderr,"skipping file...\n");
continue;
}
}
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(parameters.infile, "rb");
if (!fsrc) {
fprintf(stderr, "ERROR -> failed to open %s for reading\n", parameters.infile);
return EXIT_FAILURE;
}
l_stream = opj_stream_create_default_file_stream(fsrc,1);
if (!l_stream){
fclose(fsrc);
fprintf(stderr, "ERROR -> failed to create the stream from the file\n");
return EXIT_FAILURE;
}
/* decode the JPEG2000 stream */
/* ---------------------- */
switch(parameters.decod_format) {
case J2K_CFMT: /* JPEG-2000 codestream */
{
/* Get a decoder handle */
l_codec = opj_create_decompress(OPJ_CODEC_J2K);
break;
}
case JP2_CFMT: /* JPEG 2000 compressed image data */
{
/* Get a decoder handle */
l_codec = opj_create_decompress(OPJ_CODEC_JP2);
break;
}
case JPT_CFMT: /* JPEG 2000, JPIP */
{
/* Get a decoder handle */
l_codec = opj_create_decompress(OPJ_CODEC_JPT);
break;
}
default:
fprintf(stderr, "skipping file..\n");
opj_stream_destroy(l_stream);
continue;
}
/* 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 -> opj_compress: failed to setup the decoder\n");
opj_stream_destroy(l_stream);
fclose(fsrc);
opj_destroy_codec(l_codec);
return EXIT_FAILURE;
}
/* 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 -> opj_decompress: failed to read the header\n");
opj_stream_destroy(l_stream);
fclose(fsrc);
opj_destroy_codec(l_codec);
opj_image_destroy(image);
return EXIT_FAILURE;
}
if (!parameters.nb_tile_to_decode) {
/* Optional if you want decode the entire image */
if (!opj_set_decode_area(l_codec, image, (OPJ_INT32)parameters.DA_x0,
(OPJ_INT32)parameters.DA_y0, (OPJ_INT32)parameters.DA_x1, (OPJ_INT32)parameters.DA_y1)){
fprintf(stderr, "ERROR -> opj_decompress: failed to set the decoded area\n");
opj_stream_destroy(l_stream);
opj_destroy_codec(l_codec);
opj_image_destroy(image);
fclose(fsrc);
return EXIT_FAILURE;
}
/* Get the decoded image */
if (!(opj_decode(l_codec, l_stream, image) && opj_end_decompress(l_codec, l_stream))) {
fprintf(stderr,"ERROR -> opj_decompress: failed to decode image!\n");
opj_destroy_codec(l_codec);
opj_stream_destroy(l_stream);
opj_image_destroy(image);
fclose(fsrc);
return EXIT_FAILURE;
}
}
else {
/* It is just here to illustrate how to use the resolution after set parameters */
/*if (!opj_set_decoded_resolution_factor(l_codec, 5)) {
fprintf(stderr, "ERROR -> opj_decompress: failed to set the resolution factor tile!\n");
opj_destroy_codec(l_codec);
opj_stream_destroy(l_stream);
opj_image_destroy(image);
fclose(fsrc);
return EXIT_FAILURE;
}*/
if (!opj_get_decoded_tile(l_codec, l_stream, image, parameters.tile_index)) {
fprintf(stderr, "ERROR -> opj_decompress: failed to decode tile!\n");
opj_destroy_codec(l_codec);
opj_stream_destroy(l_stream);
opj_image_destroy(image);
fclose(fsrc);
return EXIT_FAILURE;
}
fprintf(stdout, "tile %d is decoded!\n\n", parameters.tile_index);
}
/* Close the byte stream */
opj_stream_destroy(l_stream);
fclose(fsrc);
if(image->color_space == OPJ_CLRSPC_SYCC){
color_sycc_to_rgb(image); /* FIXME */
}
if( image->color_space != OPJ_CLRSPC_SYCC
&& image->numcomps == 3 && image->comps[0].dx == image->comps[0].dy
&& image->comps[1].dx != 1 )
image->color_space = OPJ_CLRSPC_SYCC;
else if (image->numcomps <= 2)
image->color_space = OPJ_CLRSPC_GRAY;
if(image->icc_profile_buf) {
#if defined(OPJ_HAVE_LIBLCMS1) || defined(OPJ_HAVE_LIBLCMS2)
color_apply_icc_profile(image); /* FIXME */
#endif
free(image->icc_profile_buf);
image->icc_profile_buf = NULL; image->icc_profile_len = 0;
}
/* create output image */
/* ------------------- */
switch (parameters.cod_format) {
case PXM_DFMT: /* PNM PGM PPM */
if (imagetopnm(image, parameters.outfile)) {
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case PGX_DFMT: /* PGX */
if(imagetopgx(image, parameters.outfile)){
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
case BMP_DFMT: /* BMP */
if(imagetobmp(image, parameters.outfile)){
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
#ifdef OPJ_HAVE_LIBTIFF
case TIF_DFMT: /* TIFF */
if(imagetotif(image, parameters.outfile)){
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Generated Outfile %s\n",parameters.outfile);
}
break;
#endif /* OPJ_HAVE_LIBTIFF */
case RAW_DFMT: /* RAW */
if(imagetoraw(image, parameters.outfile)){
fprintf(stderr,"Error generating raw file. Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
case RAWL_DFMT: /* RAWL */
if(imagetorawl(image, parameters.outfile)){
fprintf(stderr,"Error generating rawl file. Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
case TGA_DFMT: /* TGA */
if(imagetotga(image, parameters.outfile)){
fprintf(stderr,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
#ifdef OPJ_HAVE_LIBPNG
case PNG_DFMT: /* PNG */
if(imagetopng(image, parameters.outfile)){
fprintf(stderr,"Error generating png file. Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
#endif /* OPJ_HAVE_LIBPNG */
/* Can happen if output file is TIFF or PNG
* and OPJ_HAVE_LIBTIF or OPJ_HAVE_LIBPNG is undefined
*/
default:
fprintf(stderr,"Outfile %s not generated\n",parameters.outfile);
failed = 1;
}
/* free remaining structures */
if (l_codec) {
opj_destroy_codec(l_codec);
}
/* free image data structure */
opj_image_destroy(image);
/* destroy the codestream index */
opj_destroy_cstr_index(&cstr_index);
}
return failed ? EXIT_FAILURE : EXIT_SUCCESS;
}
int dt_imageio_j2k_read_profile(const char *filename, uint8_t **out)
{
#ifdef HAVE_OPENJPEG_ICC
opj_dparameters_t parameters; /* decompression parameters */
opj_image_t *image = NULL;
FILE *fsrc = NULL;
unsigned char *src = NULL;
int file_length;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
OPJ_CODEC_FORMAT codec;
gboolean res = FALSE;
unsigned int length = 0;
*out = NULL;
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(filename, "rb");
if(!fsrc)
{
fprintf(stderr, "[j2k_open] Error: failed to open `%s' for reading\n", filename);
goto another_end_of_the_world;
}
fseek(fsrc, 0, SEEK_END);
file_length = ftell(fsrc);
fseek(fsrc, 0, SEEK_SET);
src = (unsigned char *) malloc(file_length);
if(fread(src, 1, file_length, fsrc) != (size_t)file_length)
{
free(src);
fclose(fsrc);
fprintf(stderr, "[j2k_open] Error: fread returned a number of elements different from the expected.\n");
goto another_end_of_the_world;
}
fclose(fsrc);
if(memcmp(JP2_HEAD, src, sizeof(JP2_HEAD)) == 0)
{
codec = CODEC_JP2;
}
else if(memcmp(J2K_HEAD, src, sizeof(J2K_HEAD)) == 0)
{
codec = CODEC_J2K;
}
else // this will also reject jpt files.
{
free(src);
fprintf(stderr, "[j2k_open] Error: `%s' has unsupported file format.\n", filename);
goto another_end_of_the_world;
}
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
parameters.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
/* decode the code-stream */
/* ---------------------- */
/* get a decoder handle */
dinfo = opj_create_decompress(codec);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
/* close the byte stream */
opj_cio_close(cio);
/* free the memory containing the code-stream */
free(src);
if(!image)
{
fprintf(stderr, "[j2k_open] Error: failed to decode image `%s'\n", filename);
goto another_end_of_the_world;
}
if(image->icc_profile_buf)
{
res = TRUE;
length = image->icc_profile_len;
*out = image->icc_profile_buf;
image->icc_profile_buf = NULL;
image->icc_profile_len = 0;
}
another_end_of_the_world:
/* free remaining structures */
if(dinfo)
opj_destroy_decompress(dinfo);
/* free image data structure */
opj_image_destroy(image);
return res?length:0;
#else
return 0;
#endif
}
BOOL LLImageJ2COJ::decodeImpl(LLImageJ2C &base, LLImageRaw &raw_image, F32 decode_time, S32 first_channel, S32 max_channel_count)
{
//
// FIXME: Get the comment field out of the texture
//
LLTimer decode_timer;
opj_dparameters_t parameters; /* decompression parameters */
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
/* configure the event callbacks (not required) */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = info_callback;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
parameters.cp_reduce = base.getRawDiscardLevel();
/* decode the code-stream */
/* ---------------------- */
/* JPEG-2000 codestream */
/* get a decoder handle */
dinfo = opj_create_decompress(CODEC_J2K);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, base.getData(), base.getDataSize());
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
/* close the byte stream */
opj_cio_close(cio);
/* free remaining structures */
if(dinfo)
{
opj_destroy_decompress(dinfo);
}
// The image decode failed if the return was NULL or the component
// count was zero. The latter is just a sanity check before we
// dereference the array.
if(!image || !image->numcomps)
{
LL_DEBUGS("Texture") << "ERROR -> decodeImpl: failed to decode image!" << LL_ENDL;
if (image)
{
opj_image_destroy(image);
}
return TRUE; // done
}
// sometimes we get bad data out of the cache - check to see if the decode succeeded
for (S32 i = 0; i < image->numcomps; i++)
{
if (image->comps[i].factor != base.getRawDiscardLevel())
{
// if we didn't get the discard level we're expecting, fail
opj_image_destroy(image);
base.mDecoding = FALSE;
return TRUE;
}
}
if(image->numcomps <= first_channel)
{
llwarns << "trying to decode more channels than are present in image: numcomps: " << image->numcomps << " first_channel: " << first_channel << llendl;
if (image)
{
opj_image_destroy(image);
}
return TRUE;
}
// Copy image data into our raw image format (instead of the separate channel format
S32 img_components = image->numcomps;
S32 channels = img_components - first_channel;
if( channels > max_channel_count )
channels = max_channel_count;
// Component buffers are allocated in an image width by height buffer.
// The image placed in that buffer is ceil(width/2^factor) by
// ceil(height/2^factor) and if the factor isn't zero it will be at the
// top left of the buffer with black filled in the rest of the pixels.
// It is integer math so the formula is written in ceildivpo2.
// (Assuming all the components have the same width, height and
// factor.)
S32 comp_width = image->comps[0].w;
S32 f=image->comps[0].factor;
S32 width = ceildivpow2(image->x1 - image->x0, f);
S32 height = ceildivpow2(image->y1 - image->y0, f);
raw_image.resize(width, height, channels);
U8 *rawp = raw_image.getData();
// first_channel is what channel to start copying from
// dest is what channel to copy to. first_channel comes from the
// argument, dest always starts writing at channel zero.
for (S32 comp = first_channel, dest=0; comp < first_channel + channels;
comp++, dest++)
{
if (image->comps[comp].data)
{
S32 offset = dest;
for (S32 y = (height - 1); y >= 0; y--)
{
for (S32 x = 0; x < width; x++)
{
rawp[offset] = image->comps[comp].data[y*comp_width + x];
offset += channels;
}
}
}
else // Some rare OpenJPEG versions have this bug.
{
LL_DEBUGS("Texture") << "ERROR -> decodeImpl: failed to decode image! (NULL comp data - OpenJPEG bug)" << LL_ENDL;
opj_image_destroy(image);
return TRUE; // done
}
}
/* free image data structure */
opj_image_destroy(image);
return TRUE; // done
}
dt_imageio_retval_t dt_imageio_open_j2k(dt_image_t *img, const char *filename, dt_mipmap_cache_allocator_t a)
{
opj_dparameters_t parameters; /* decompression parameters */
opj_event_mgr_t event_mgr; /* event manager */
opj_image_t *image = NULL;
FILE *fsrc = NULL;
unsigned char *src = NULL;
int file_length;
opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
opj_cio_t *cio = NULL;
OPJ_CODEC_FORMAT codec;
int ret = DT_IMAGEIO_FILE_CORRUPTED;
int file_format = get_file_format(filename);
if(file_format == -1) return DT_IMAGEIO_FILE_CORRUPTED;
if(!img->exif_inited)
(void) dt_exif_read(img, filename);
/* read the input file and put it in memory */
/* ---------------------------------------- */
fsrc = fopen(filename, "rb");
if(!fsrc)
{
fprintf(stderr, "[j2k_open] Error: failed to open `%s' for reading\n", filename);
return DT_IMAGEIO_FILE_NOT_FOUND;
}
fseek(fsrc, 0, SEEK_END);
file_length = ftell(fsrc);
fseek(fsrc, 0, SEEK_SET);
src = (unsigned char *) malloc(file_length);
if(fread(src, 1, file_length, fsrc) != (size_t)file_length)
{
free(src);
fclose(fsrc);
fprintf(stderr, "[j2k_open] Error: fread returned a number of elements different from the expected.\n");
return DT_IMAGEIO_FILE_NOT_FOUND;
}
fclose(fsrc);
if(memcmp(JP2_HEAD, src, sizeof(JP2_HEAD)) == 0)
{
file_format = JP2_CFMT; // just in case someone used the wrong extension
}
else if(memcmp(J2K_HEAD, src, sizeof(J2K_HEAD)) == 0)
{
file_format = J2K_CFMT; // just in case someone used the wrong extension
}
else // this will also reject jpt files.
{
free(src);
fprintf(stderr, "[j2k_open] Error: `%s' has unsupported file format.\n", filename);
return DT_IMAGEIO_FILE_CORRUPTED;
}
/* configure the event callbacks (not required) */
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
// event_mgr.warning_handler = warning_callback;
// event_mgr.info_handler = info_callback;
/* set decoding parameters to default values */
opj_set_default_decoder_parameters(¶meters);
/* decode the code-stream */
/* ---------------------- */
if(file_format == J2K_CFMT) /* JPEG-2000 codestream */
codec = CODEC_J2K;
else if(file_format == JP2_CFMT) /* JPEG 2000 compressed image data */
codec = CODEC_JP2;
else if(file_format == JPT_CFMT) /* JPEG 2000, JPIP */
codec = CODEC_JPT;
else
{
free(src);
return DT_IMAGEIO_FILE_CORRUPTED; // can't happen
}
/* get a decoder handle */
dinfo = opj_create_decompress(codec);
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
opj_setup_decoder(dinfo, ¶meters);
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);
/* close the byte stream */
opj_cio_close(cio);
/* free the memory containing the code-stream */
free(src);
if(!image)
{
fprintf(stderr, "[j2k_open] Error: failed to decode image `%s'\n", filename);
ret = DT_IMAGEIO_FILE_CORRUPTED;
goto end_of_the_world;
}
if(image->color_space == CLRSPC_SYCC)
{
color_sycc_to_rgb(image);
}
//FIXME: openjpeg didn't have support for icc profiles before version 1.5
// this needs some #ifdef magic and proper implementation
#ifdef HAVE_OPENJPEG_ICC
if(image->icc_profile_buf)
{
#if defined(HAVE_LIBLCMS1) || defined(HAVE_LIBLCMS2)
color_apply_icc_profile(image);
#endif
free(image->icc_profile_buf);
image->icc_profile_buf = NULL;
image->icc_profile_len = 0;
}
#endif
/* create output image */
/* ------------------- */
long signed_offsets[4] = {0, 0, 0, 0};
int float_divs[4] = {1, 1, 1, 1};
// some sanity checks
if(image->numcomps == 0 || image->x1 == 0 || image->y1 == 0)
{
fprintf(stderr, "[j2k_open] Error: invalid raw image parameters in `%s'\n", filename);
ret = DT_IMAGEIO_FILE_CORRUPTED;
goto end_of_the_world;
}
for(int i = 0; i < image->numcomps; i++)
{
if(image->comps[i].w != image->x1 || image->comps[i].h != image->y1)
{
fprintf(stderr, "[j2k_open] Error: some component has different size in `%s'\n", filename);
ret = DT_IMAGEIO_FILE_CORRUPTED;
goto end_of_the_world;
}
if(image->comps[i].prec > 16)
{
fprintf(stderr,"[j2k_open] Error: precision %d is larger than 16 in `%s'\n", image->comps[1].prec, filename);
ret = DT_IMAGEIO_FILE_CORRUPTED;
goto end_of_the_world;
}
}
img->width = image->x1;
img->height = image->y1;
img->bpp = 4*sizeof(float);
float *buf = (float *)dt_mipmap_cache_alloc(img, DT_MIPMAP_FULL, a);
if(!buf)
{
ret = DT_IMAGEIO_CACHE_FULL;
goto end_of_the_world;
}
int i = image->numcomps;
if(i > 4) i = 4;
while(i)
{
i--;
if(image->comps[i].sgnd)
signed_offsets[i] = 1 << (image->comps[i].prec - 1);
float_divs[i] = (1 << image->comps[i].prec) - 1;
}
// numcomps == 1 : grey -> r = grey, g = grey, b = grey
// numcomps == 2 : grey, alpha -> r = grey, g = grey, b = grey. put alpha into the mix?
// numcomps == 3 : rgb -> rgb
// numcomps == 4 : rgb, alpha -> rgb. put alpha into the mix?
// first try: ignore alpha.
if(image->numcomps < 3) // 1, 2 => grayscale
{
for(int i = 0; i < img->width * img->height; i++)
buf[i*4 + 0] = buf[i*4 + 1] = buf[i*4 + 2] = (float)(image->comps[0].data[i] + signed_offsets[0]) / float_divs[0];
}
else // 3, 4 => rgb
{
for(int i = 0; i < img->width * img->height; i++)
for(int k = 0; k < 3; k++) buf[i*4 + k] = (float)(image->comps[k].data[i] + signed_offsets[k]) / float_divs[k];
}
ret = DT_IMAGEIO_OK;
end_of_the_world:
/* free remaining structures */
if(dinfo)
opj_destroy_decompress(dinfo);
/* free image data structure */
opj_image_destroy(image);
return ret;
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
if (handle) {
opj_dparameters_t parameters; // decompression parameters
opj_event_mgr_t event_mgr; // event manager
opj_image_t *image = NULL; // decoded image
BYTE *src = NULL;
long file_length;
opj_dinfo_t* dinfo = NULL; // handle to a decompressor
opj_cio_t *cio = NULL;
FIBITMAP *dib = NULL;
// check the file format
if(!Validate(io, handle)) {
return NULL;
}
// configure the event callbacks
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = jp2_error_callback;
event_mgr.warning_handler = jp2_warning_callback;
event_mgr.info_handler = NULL;
// set decoding parameters to default values
opj_set_default_decoder_parameters(¶meters);
try {
// read the input file and put it in memory
long start_pos = io->tell_proc(handle);
io->seek_proc(handle, 0, SEEK_END);
file_length = io->tell_proc(handle) - start_pos;
io->seek_proc(handle, start_pos, SEEK_SET);
src = (BYTE*)malloc(file_length * sizeof(BYTE));
if(!src) {
throw FI_MSG_ERROR_MEMORY;
}
if(io->read_proc(src, 1, file_length, handle) < 1) {
throw "Error while reading input stream";
}
// decode the JPEG-2000 file
// get a decoder handle
dinfo = opj_create_decompress(CODEC_JP2);
// catch events using our callbacks
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, NULL);
// setup the decoder decoding parameters using user parameters
opj_setup_decoder(dinfo, ¶meters);
// open a byte stream
cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
// decode the stream and fill the image structure
image = opj_decode(dinfo, cio);
if(!image) {
throw "Failed to decode image!\n";
}
// close the byte stream
opj_cio_close(cio);
cio = NULL;
// free the memory containing the code-stream
free(src);
src = NULL;
// free the codec context
opj_destroy_decompress(dinfo);
// create output image
dib = J2KImageToFIBITMAP(s_format_id, image);
if(!dib) throw "Failed to import JPEG2000 image";
// free image data structure
opj_image_destroy(image);
return dib;
} catch (const char *text) {
if(src) free(src);
if(dib) FreeImage_Unload(dib);
// free remaining structures
opj_destroy_decompress(dinfo);
opj_image_destroy(image);
// close the byte stream
if(cio) opj_cio_close(cio);
FreeImage_OutputMessageProc(s_format_id, text);
return NULL;
}
}
return NULL;
}
int main(int argc, char *argv[]) {
mj2_dparameters_t mj2_parameters; /* decompression parameters */
opj_dinfo_t* dinfo;
opj_event_mgr_t event_mgr; /* event manager */
opj_cio_t *cio = NULL;
unsigned int tnum, snum;
opj_mj2_t *movie;
mj2_tk_t *track;
mj2_sample_t *sample;
unsigned char* frame_codestream;
FILE *file, *outfile;
char outfilename[50];
opj_image_t *img = NULL;
unsigned int max_codstrm_size = 0;
double total_time = 0;
unsigned int numframes = 0;
if (argc != 3) {
printf("Usage: %s inputfile.mj2 outputfile.yuv\n",argv[0]);
return 1;
}
file = fopen(argv[1], "rb");
if (!file) {
fprintf(stderr, "failed to open %s for reading\n", argv[1]);
return 1;
}
/* Checking output file */
outfile = fopen(argv[2], "w");
if (!file) {
fprintf(stderr, "failed to open %s for writing\n", argv[2]);
return 1;
}
fclose(outfile);
/*
configure the event callbacks (not required)
setting of each callback is optionnal
*/
memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
event_mgr.error_handler = error_callback;
event_mgr.warning_handler = warning_callback;
event_mgr.info_handler = NULL;
/* get a MJ2 decompressor handle */
dinfo = mj2_create_decompress();
movie = (opj_mj2_t*)dinfo->mj2_handle;
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
memset(&mj2_parameters, 0, sizeof(mj2_dparameters_t));
/* set J2K decoding parameters to default values */
opj_set_default_decoder_parameters(&mj2_parameters.j2k_parameters);
/* setup the decoder decoding parameters using user parameters */
mj2_setup_decoder(movie, &mj2_parameters);
if (mj2_read_struct(file, movie)) /* Creating the movie structure */
return 1;
/* Decode first video track */
for (tnum=0; tnum < (unsigned int)(movie->num_htk + movie->num_stk + movie->num_vtk); tnum++) {
if (movie->tk[tnum].track_type == 0)
break;
}
if (movie->tk[tnum].track_type != 0) {
printf("Error. Movie does not contain any video track\n");
return 1;
}
track = &movie->tk[tnum];
/* Output info on first video tracl */
fprintf(stdout,"The first video track contains %d frames.\nWidth: %d, Height: %d \n\n",
track->num_samples, track->w, track->h);
max_codstrm_size = track->sample[0].sample_size-8;
frame_codestream = (unsigned char*) malloc(max_codstrm_size * sizeof(unsigned char));
numframes = track->num_samples;
for (snum=0; snum < numframes; snum++)
{
double init_time = opj_clock();
double elapsed_time;
sample = &track->sample[snum];
if (sample->sample_size-8 > max_codstrm_size) {
max_codstrm_size = sample->sample_size-8;
if ((frame_codestream = (unsigned char*)
realloc(frame_codestream, max_codstrm_size)) == NULL) {
printf("Error reallocation memory\n");
return 1;
};
}
fseek(file,sample->offset+8,SEEK_SET);
fread(frame_codestream, sample->sample_size-8, 1, file); /* Assuming that jp and ftyp markers size do */
/* open a byte stream */
cio = opj_cio_open((opj_common_ptr)dinfo, frame_codestream, sample->sample_size-8);
img = opj_decode(dinfo, cio); /* Decode J2K to image */
#ifdef WANT_SYCC_TO_RGB
if(img->color_space == CLRSPC_SYCC)
{
color_sycc_to_rgb(img);
}
#endif
if(img->icc_profile_buf)
{
#if defined(OPJ_HAVE_LIBLCMS1) || defined(OPJ_HAVE_LIBLCMS2)
color_apply_icc_profile(img);
#endif
free(img->icc_profile_buf);
img->icc_profile_buf = NULL; img->icc_profile_len = 0;
}
if (((img->numcomps == 3) && (img->comps[0].dx == img->comps[1].dx / 2)
&& (img->comps[0].dx == img->comps[2].dx / 2 ) && (img->comps[0].dx == 1))
|| (img->numcomps == 1)) {
if (!imagetoyuv(img, argv[2])) /* Convert image to YUV */
return 1;
}
else if ((img->numcomps == 3) &&
(img->comps[0].dx == 1) && (img->comps[1].dx == 1)&&
(img->comps[2].dx == 1))/* If YUV 4:4:4 input --> to bmp */
{
fprintf(stdout,"The frames will be output in a bmp format (output_1.bmp, ...)\n");
sprintf(outfilename,"output_%d.bmp",snum);
if (imagetobmp(img, outfilename)) /* Convert image to BMP */
return 1;
}
else {
fprintf(stdout,"Image component dimensions are unknown. Unable to output image\n");
fprintf(stdout,"The frames will be output in a j2k file (output_1.j2k, ...)\n");
sprintf(outfilename,"output_%d.j2k",snum);
outfile = fopen(outfilename, "wb");
if (!outfile) {
fprintf(stderr, "failed to open %s for writing\n",outfilename);
return 1;
}
fwrite(frame_codestream,sample->sample_size-8,1,outfile);
fclose(outfile);
}
/* close the byte stream */
opj_cio_close(cio);
/* free image data structure */
opj_image_destroy(img);
elapsed_time = opj_clock()-init_time;
fprintf(stderr, "Frame number %d/%d decoded in %.2f mseconds\n", snum + 1, numframes, elapsed_time*1000);
total_time += elapsed_time;
}
free(frame_codestream);
fclose(file);
/* free remaining structures */
if(dinfo) {
mj2_destroy_decompress((opj_mj2_t*)dinfo->mj2_handle);
}
free(dinfo);
fprintf(stdout, "%d frame(s) correctly decompressed\n", snum);
fprintf(stdout,"Total decoding time: %.2f seconds (%.1f fps)\n", total_time, (float)numframes/total_time);
return 0;
}
