int jpeg_save_to_file(unsigned char*data, int width, int height, int quality, FILE*fi);
int jpeg_save_to_mem(unsigned char*data, int width, int height, int quality, unsigned char*dest, int destsize);
int jpeg_load(const char*filename, unsigned char**dest, int*width, int*height);
int jpeg_save_to_file(unsigned char*data, int width, int height, int quality, FILE*fi);
int jpeg_save_to_mem(unsigned char*data, int width, int height, int quality, unsigned char*dest, int destsize);
int jpeg_load(const char*filename, unsigned char**dest, int*width, int*height);