22 #ifndef _JPEGCOMPRESSOR_H    23 #define _JPEGCOMPRESSOR_H    26 #include "Compressor.h"    31 #define snprintf _snprintf    48   struct jpeg_destination_mgr pub;   
    68   unsigned int width, height, channels;
    74   unsigned char header[1024];
    80   unsigned int header_size;
    83   struct jpeg_compress_struct cinfo;
    84   struct jpeg_error_mgr jerr;
    89   void writeICCProfile();
    92   void writeXMPMetadata();
   105     if( factor < 0 ) Q = 0;
   106     else if( factor > 100 ) Q = 100;
   130   unsigned int CompressStrip( 
unsigned char* s, 
unsigned char* o, 
unsigned int tile_height );
   136   unsigned int Finish( 
unsigned char* output );
 unsigned int Compress(RawTile &t)
Compress an entire buffer of image data at once in one command. 
const char * getSuffix()
Return the image filename suffix. 
Definition: JPEGCompressor.h:152
unsigned int CompressStrip(unsigned char *s, unsigned char *o, unsigned int tile_height)
Compress a strip of image data. 
Wrapper class to the IJG JPEG library. 
Definition: JPEGCompressor.h:63
Expanded data destination object for buffered output used by IJG JPEG library. 
Definition: JPEGCompressor.h:47
const char * getMimeType()
Return the JPEG mime type. 
Definition: JPEGCompressor.h:149
unsigned int Finish(unsigned char *output)
Finish the strip based compression and free memory. 
unsigned int strip_height
Definition: JPEGCompressor.h:53
unsigned char * source
Definition: JPEGCompressor.h:52
void setQuality(int factor)
Set the compression quality. 
Definition: JPEGCompressor.h:104
Base class for IIP output images. 
Definition: Compressor.h:32
JPEGCompressor(int quality)
Constructor. 
Definition: JPEGCompressor.h:99
size_t size
Definition: JPEGCompressor.h:50
unsigned int getHeaderSize()
Return the JPEG header size. 
Definition: JPEGCompressor.h:143
void InitCompression(const RawTile &rawtile, unsigned int strip_height)
Initialise strip based compression. 
unsigned char * getHeader()
Return a pointer to the header itself. 
Definition: JPEGCompressor.h:146
Class to represent a single image tile. 
Definition: RawTile.h:45
int getQuality()
Get the current quality level. 
Definition: JPEGCompressor.h:112
JOCTET * buffer
Definition: JPEGCompressor.h:51