string NefDecoder::getMode() {
ostringstream mode;
vector<TiffIFD*> data = mRootIFD->getIFDsWithTag(CFAPATTERN);
TiffIFD* raw = FindBestImage(&data);
int compression = raw->getEntry(COMPRESSION)->getInt();
uint32 bitPerPixel = raw->getEntry(BITSPERSAMPLE)->getInt();
if (1 == compression)
mode << bitPerPixel << "bit-uncompressed";
else
mode << bitPerPixel << "bit-uncompressed";
return mode.str();
}
void NefDecoder::DecodeUncompressed() {
vector<TiffIFD*> data = mRootIFD->getIFDsWithTag(CFAPATTERN);
TiffIFD* raw = FindBestImage(&data);
uint32 nslices = raw->getEntry(STRIPOFFSETS)->count;
const uint32 *offsets = raw->getEntry(STRIPOFFSETS)->getIntArray();
const uint32 *counts = raw->getEntry(STRIPBYTECOUNTS)->getIntArray();
uint32 yPerSlice = raw->getEntry(ROWSPERSTRIP)->getInt();
uint32 width = raw->getEntry(IMAGEWIDTH)->getInt();
uint32 height = raw->getEntry(IMAGELENGTH)->getInt();
uint32 bitPerPixel = raw->getEntry(BITSPERSAMPLE)->getInt();
vector<NefSlice> slices;
uint32 offY = 0;
for (uint32 s = 0; s < nslices; s++) {
NefSlice slice;
slice.offset = offsets[s];
slice.count = counts[s];
if (offY + yPerSlice > height)
slice.h = height - offY;
else
slice.h = yPerSlice;
offY = MIN(height, offY + yPerSlice);
if (mFile->isValid(slice.offset, slice.count)) // Only decode if size is valid
slices.push_back(slice);
}
if (0 == slices.size())
ThrowRDE("NEF Decoder: No valid slices found. File probably truncated.");
mRaw->dim = iPoint2D(width, offY);
mRaw->createData();
if (bitPerPixel == 14 && width*slices[0].h*2 == slices[0].count)
bitPerPixel = 16; // D3 & D810
if(hints.find("real_bpp") != hints.end()) {
stringstream convert(hints.find("real_bpp")->second);
convert >> bitPerPixel;
}
void NefDecoder::DecodeUncompressed() {
vector<TiffIFD*> data = mRootIFD->getIFDsWithTag(CFAPATTERN);
TiffIFD* raw = FindBestImage(&data);
uint32 nslices = raw->getEntry(STRIPOFFSETS)->count;
const uint32 *offsets = raw->getEntry(STRIPOFFSETS)->getIntArray();
const uint32 *counts = raw->getEntry(STRIPBYTECOUNTS)->getIntArray();
uint32 yPerSlice = raw->getEntry(ROWSPERSTRIP)->getInt();
uint32 width = raw->getEntry(IMAGEWIDTH)->getInt();
uint32 height = raw->getEntry(IMAGELENGTH)->getInt();
uint32 bitPerPixel = raw->getEntry(BITSPERSAMPLE)->getInt();
vector<NefSlice> slices;
uint32 offY = 0;
for (uint32 s = 0; s < nslices; s++) {
NefSlice slice;
slice.offset = offsets[s];
slice.count = counts[s];
if (offY + yPerSlice > height)
slice.h = height - offY;
else
slice.h = yPerSlice;
offY += yPerSlice;
if (mFile->isValid(slice.offset + slice.count)) // Only decode if size is valid
slices.push_back(slice);
}
if (0 == slices.size())
ThrowRDE("NEF Decoder: No valid slices found. File probably truncated.");
mRaw->dim = iPoint2D(width, offY);
mRaw->createData();
if (bitPerPixel == 14 && width*slices[0].h*2 == slices[0].count)
bitPerPixel = 16; // D3
offY = 0;
for (uint32 i = 0; i < slices.size(); i++) {
NefSlice slice = slices[i];
ByteStream in(mFile->getData(slice.offset), slice.count);
iPoint2D size(width, slice.h);
iPoint2D pos(0, offY);
try {
if (hints.find(string("coolpixmangled")) != hints.end())
readCoolpixMangledRaw(in, size, pos, width*bitPerPixel / 8);
else if (hints.find(string("coolpixsplit")) != hints.end())
readCoolpixSplitRaw(in, size, pos, width*bitPerPixel / 8);
else
readUncompressedRaw(in, size, pos, width*bitPerPixel / 8, bitPerPixel, true);
} catch (RawDecoderException e) {
if (i>0)
mRaw->setError(e.what());
else
throw;
} catch (IOException e) {
if (i>0)
mRaw->setError(e.what());
else
ThrowRDE("NEF decoder: IO error occurred in first slice, unable to decode more. Error is: %s", e.what());
}
offY += slice.h;
}
}
