void Writer::setImageWriteHandlers(nitf::IOHandle& io, nitf::Record& record)
{
nitf::List images = record.getImages();
const size_t numImages = record.getNumImages();
for (size_t ii = 0; ii < numImages; ++ii)
{
nitf::ImageSegment segment = images[ii];
const size_t offset = segment.getImageOffset();
mem::SharedPtr<nitf::WriteHandler> handler(
new nitf::StreamIOWriteHandler(
io, offset, segment.getImageEnd() - offset));
setImageWriteHandler(ii, handler);
}
}
void doWrite(nitf::Record record,
const std::string& inRootFile,
const std::string& outFile,
size_t bufferSize)
{
std::cout << "Preparing to write file in " << bufferSize
<< " size blocks" << std::endl;
nitf::BufferedWriter output(outFile, bufferSize);
nitf::Writer writer;
writer.prepareIO(output, record);
int numImages = record.getHeader().getNumImages();
nitf::ListIterator end = record.getImages().end();
nitf::ListIterator iter = record.getImages().begin();
for (int i = 0; i < numImages && iter != end; ++i, ++iter)
{
nitf::ImageSegment imseg;
imseg = *iter;
int nbands = imseg.getSubheader().getNumImageBands();
nitf::ImageWriter iWriter = writer.newImageWriter(i);
nitf::ImageSource iSource = setupBands(nbands, i, inRootFile);
iWriter.attachSource(iSource);
}
writer.write();
//output.close();
std::cout << "Write block info: " << std::endl;
std::cout << "------------------------------------" << std::endl;
std::cout << "Total number of blocks written: " << output.getNumBlocksWritten() << std::endl;
std::cout << "Of those, " << output.getNumPartialBlocksWritten() << " were less than buffer size " << bufferSize << std::endl;
}
