OFCondition DJCompressJP2K::encode(
Uint16 columns,
Uint16 rows,
EP_Interpretation colorSpace,
Uint16 samplesPerPixel,
Uint16 * image_buffer,
Uint16 * & to,
Uint32 & length,
Uint8 bitsAllocated,
Uint8 pixelRepresentation,
double minUsed, double maxUsed)
{
int bitsstored = bitsAllocated;
if( samplesPerPixel > 1)
bitsstored = bitsAllocated = 8;
OFBool isSigned = pixelRepresentation;
if( bitsAllocated >= 16)
{
int amplitude = maxUsed;
if( minUsed < 0)
amplitude -= minUsed;
int bits = 1, value = 2;
while( value < amplitude && bits <= 16)
{
value *= 2;
bits++;
}
if( minUsed < 0) // K A10009536850 22.06.12
bits++;
if( bits < 9)
bits = 9;
// avoid the artifacts... switch to lossless
if( (maxUsed >= 32000 && minUsed <= -32000) || maxUsed >= 65000 || bits > 16)
quality = 0;
if( bits > 16) bits = 16;
bitsstored = bits;
}
opj_cparameters_t parameters;
opj_image_t *image = NULL;
// printf( "JP2K OPJ-DCMTK-Encode ");
opj_set_default_encoder_parameters(¶meters);
parameters.tcp_numlayers = 1;
parameters.cp_disto_alloc = 1;
switch( quality)
{
case 0: // DCMLosslessQuality
parameters.tcp_rates[0] = 0;
break;
case 1: // DCMHighQuality
parameters.tcp_rates[0] = 4;
break;
case 2: // DCMMediumQuality
if( columns <= 600 || rows <= 600)
parameters.tcp_rates[0] = 6;
else
parameters.tcp_rates[0] = 8;
break;
case 3: // DCMLowQuality
parameters.tcp_rates[0] = 16;
break;
default:
//printf( "****** warning unknown compression rate -> MediumQuality : %d", quality);
if( columns <= 600 || rows <= 600)
parameters.tcp_rates[0] = 6;
else
parameters.tcp_rates[0] = 8;
break;
}
int image_width = columns;
int image_height = rows;
int sample_pixel = samplesPerPixel;
if (colorSpace == EPI_Monochrome1 || colorSpace == EPI_Monochrome2)
{
}
else
{
if( sample_pixel != 3)
printf( "*** RGB Photometric?, but... SamplesPerPixel != 3 ?");
sample_pixel = 3;
}
image = rawtoimage( (char *)image_buffer, ¶meters, static_cast<int>( columns*rows*samplesPerPixel*bitsAllocated/8), image_width, image_height, sample_pixel, bitsAllocated, bitsstored, isSigned, quality, 0);
if(!image) {
fprintf(stderr, "Unable to load buffer image\n");
return EC_Normal;
}
parameters.cod_format = 0; /* J2K format output */
int codestream_length;
opj_codec_t *l_codec = 00;
l_codec = opj_create_compress(OPJ_CODEC_J2K);
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 encoder parameters using the current image and using user parameters */
opj_setup_encoder(l_codec, ¶meters, image);
char * l_out;
size_t l_size;
FILE * l_file = open_memstream(&l_out, &l_size);
opj_stream_t * l_stream = opj_stream_create(OPJ_J2K_STREAM_CHUNK_SIZE, OPJ_FALSE);
if (! l_stream){
fprintf(stderr, "failed to create stream\n");
return EC_Normal;
}
opj_stream_set_user_data(l_stream, l_file, (opj_stream_free_user_data_fn)NULL);
opj_stream_set_write_function(l_stream, (opj_stream_write_fn)_write);
/* encode the image */
int bSuccess = opj_start_compress(l_codec, image, l_stream);
if (!bSuccess) {
fprintf(stderr, "failed to encode image\n");
return EC_Normal;
}
bSuccess = bSuccess && opj_encode(l_codec, l_stream);
if (!bSuccess) {
opj_stream_destroy(l_stream);
opj_destroy_codec(l_codec);
opj_image_destroy(image);
fprintf(stderr, "failed to encode image 2\n");
remove(parameters.outfile);
return EC_Normal;
}
bSuccess = bSuccess && opj_end_compress(l_codec, l_stream);
if (!bSuccess) {
fprintf(stderr, "failed to encode image: opj_end_compress\n");
return EC_Normal;
}
/* l_file memstream must be flushed to allow accessint to l_out and l_size values */
fflush(l_file);
#ifdef _WIN32
get_buffer_and_size(l_file);
#endif
fclose(l_file);
/* copy compressed stream to "to" UINT8* */
to = new Uint16[l_size];
memcpy( to, l_out, l_size);
length = l_size;
/* free remaining compression structures */
free(l_out);
opj_stream_destroy(l_stream);
opj_destroy_codec(l_codec);
opj_image_destroy(image);
// }
return EC_Normal;
}
unsigned char *
OPJSupport::compressJPEG2K(void *data,
int samplesPerPixel,
int rows,
int columns,
int bitsstored, //precision,
unsigned char bitsAllocated,
bool sign,
int rate,
long *compressedDataSize)
{
//enconderMutex.lock();
opj_cparameters_t parameters;
opj_stream_t *l_stream = 00;
opj_codec_t* l_codec = 00;
opj_image_t *image = NULL;
OPJ_BOOL bSuccess;
OPJ_BOOL bUseTiles = OPJ_FALSE; /* OPJ_TRUE */
OPJ_UINT32 l_nb_tiles = 4;
OPJ_BOOL fails = OPJ_FALSE;
OPJ_CODEC_FORMAT codec_format;
memset(¶meters, 0, sizeof(parameters));
opj_set_default_encoder_parameters(¶meters);
parameters.outfile[0] = '\0';
parameters.tcp_numlayers = 1;
parameters.cp_disto_alloc = 1;
parameters.tcp_rates[0] = rate;
parameters.cod_format = JP2_CFMT; //JP2_CFMT; //J2K_CFMT;
OPJ_BOOL forceJ2K = (parameters.cod_format == J2K_CFMT ? OPJ_FALSE:(((OPJ_TRUE /*force here*/))));
#ifdef WITH_OPJ_FILE_STREAM
tmpnam(parameters.outfile);
#endif
image = rawtoimage( (char*) data,
¶meters,
static_cast<int>( columns*rows*samplesPerPixel*bitsAllocated/8), // [data length], fragment_size
columns, rows,
samplesPerPixel,
bitsAllocated,
bitsstored,
sign,
/*quality,*/ 0);
if (image == NULL)
{
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
/*-----------------------------------------------*/
switch (parameters.cod_format)
{
case J2K_CFMT: /* JPEG-2000 codestream */
codec_format = OPJ_CODEC_J2K;
break;
case JP2_CFMT: /* JPEG 2000 compressed image data */
codec_format = OPJ_CODEC_JP2;
break;
case JPT_CFMT: /* JPEG 2000, JPIP */
codec_format = OPJ_CODEC_JPT;
break;
case -1:
default:
fprintf(stderr,"%s:%d: encode format missing\n",__FILE__,__LINE__);
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
/* see test_tile_encoder.c:232 and opj_compress.c:1746 */
l_codec = opj_create_compress(codec_format);
if (!l_codec)
{
fprintf(stderr,"%s:%d:\n\tNO codec\n",__FILE__,__LINE__);
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
#ifdef OPJ_VERBOSE
opj_set_info_handler(l_codec, info_callback, this);
opj_set_warning_handler(l_codec, warning_callback, this);
#endif
opj_set_error_handler(l_codec, error_callback, this);
if ( !opj_setup_encoder(l_codec, ¶meters, image))
{
fprintf(stderr,"%s:%d:\n\topj_setup_encoder failed\n",__FILE__,__LINE__);
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
// Create the stream
#ifdef WITH_OPJ_BUFFER_STREAM
opj_buffer_info_t bufferInfo;
bufferInfo.cur = bufferInfo.buf = (OPJ_BYTE *)data;
bufferInfo.len = (OPJ_SIZE_T) rows * columns;
l_stream = opj_stream_create_buffer_stream(&bufferInfo, OPJ_STREAM_WRITE);
//printf("%p\n",bufferInfo.buf);
//printf("%lu\n",bufferInfo.len);
#endif
#ifdef WITH_OPJ_FILE_STREAM
l_stream = opj_stream_create_default_file_stream(parameters.outfile, OPJ_STREAM_WRITE);
#endif
if (!l_stream)
{
fprintf(stderr,"%s:%d:\n\tstream creation failed\n",__FILE__,__LINE__);
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
while(1)
{
// int tile_index=-1, user_changed_tile=0, user_changed_reduction=0;
// int max_tiles=0, max_reduction=0;
fails = OPJ_TRUE;
/* encode the image */
bSuccess = opj_start_compress(l_codec, image, l_stream);
if (!bSuccess)
{
fprintf(stderr,"%s:%d:\n\topj_start_compress failed\n",__FILE__,__LINE__);
break;
}
if ( bSuccess && bUseTiles )
{
OPJ_BYTE *l_data = NULL;
OPJ_UINT32 l_data_size = 512*512*3; //FIXME
l_data = (OPJ_BYTE*) malloc(l_data_size * sizeof(OPJ_BYTE));
memset(l_data, 0, l_data_size * sizeof(OPJ_BYTE));
//assert( l_data );
if (!l_data)
{
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
for (int i=0;i<l_nb_tiles;++i)
{
if (! opj_write_tile(l_codec,i,l_data,l_data_size,l_stream))
{
fprintf(stderr, "\nERROR -> test_tile_encoder: failed to write the tile %d!\n",i);
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
free(l_data);
*compressedDataSize = 0;
//enconderMutex.unlock();
return NULL;
}
}
free(l_data);
}
else
{
if (!opj_encode(l_codec, l_stream))
{
fprintf(stderr,"%s:%d:\n\topj_encode failed\n",__FILE__,__LINE__);
break;
}
}
if (!opj_end_compress(l_codec, l_stream))
{
fprintf(stderr,"%s:%d:\n\topj_end_compress failed\n",__FILE__,__LINE__);
break;
}
fails = OPJ_FALSE;
break;
} // while
*compressedDataSize = 0;
unsigned char *to = NULL;
/* close and free the byte stream */
if (l_stream) opj_stream_destroy(l_stream);
/* free remaining compression structures */
if (l_codec) opj_destroy_codec(l_codec);
/* free image data */
if (image) opj_image_destroy(image);
if (fails)
{
#ifdef WITH_OPJ_FILE_STREAM
if (parameters.outfile[0] != '\0')
remove(parameters.outfile);
#endif
}
else
{
#ifdef WITH_OPJ_BUFFER_STREAM
//printf("%p\n",bufferInfo.buf);
//printf("%lu\n",bufferInfo.len);
//to=(unsigned char *) malloc(bufferInfo.len);
//memcpy(to,l_stream,bufferInfo.len);
#endif
#ifdef WITH_OPJ_FILE_STREAM
// Open the temp file and get the encoded data into 'to'
// and the length into 'length'
FILE *f = NULL;
if (parameters.outfile[0] != '\0')
{
f = fopen(parameters.outfile, "rb");
}
long length = 0;
if (f != NULL)
{
fseek(f, 0, SEEK_END);
length = ftell(f);
fseek(f, 0, SEEK_SET);
if (forceJ2K)
{
length -= 85;
fseek(f, 85, SEEK_SET);
}
if (length % 2)
{
length++; // ensure even length
//fprintf(stdout,"Padded to %li\n", length);
}
to = (unsigned char *) malloc(length);
fread(to, length, 1, f);
//printf("%s %lu\n",parameters.outfile,length);;
fclose(f);
}
*compressedDataSize = length;
if (parameters.outfile[0] != '\0')
{
remove(parameters.outfile);
}
#endif
}
//enconderMutex.unlock();
return to;
}
