gangslab
2/26/2015 - 8:42 AM

From http://stackoverflow.com/questions/9094691/examples-or-tutorials-of-using-libjpeg-turbos-turbojpeg

From http://stackoverflow.com/questions/9094691/examples-or-tutorials-of-using-libjpeg-turbos-turbojpeg

jpeg-turbo-decompressed.cpp
content_copyfile_download
#include <turbojpeg.h>

long unsigned int _jpegSize; //!< _jpegSize from above
unsigned char* _compressedImage; //!< _compressedImage from above

int jpegSubsamp, width, height;
unsigned char buffer[width*height*COLOR_COMPONENTS]; //!< will contain the decompressed image

tjhandle _jpegDecompressor = tjInitDecompress();

tjDecompressHeader2(_jpegDecompressor, _compressedImage, _jpegSize, &width, &height, &jpegSubsamp);

tjDecompress2(_jpegDecompressor, _compressedImage, _jpegSize, buffer, width, 0/*pitch*/, height, TJPF_RGB, TJFLAG_FASTDCT);

tjDestroy(_jpegDecompressor);