void delta_decode(const char *inbuffer, size_t length, std::vector<unsigned short> &output)
{
std::vector<char> temp;
for(size_t i = 0; i < length; ++i)
{
if( inbuffer[i] == (char)0xa5 )
{
int repeat = (unsigned char)inbuffer[i+1] + 1;
char value = inbuffer[i+2];
while(repeat)
{
temp.push_back( value );
--repeat;
}
i+=2;
}
else
{
temp.push_back( inbuffer[i] );
}
}
unsigned short delta = 0;
for(size_t i = 0; i < temp.size(); ++i)
{
if( temp[i] == 0x5a )
{
unsigned char v1 = (unsigned char)temp[i+1];
unsigned char v2 = (unsigned char)temp[i+2];
unsigned short value = (unsigned short)(v2 * 256 + v1);
output.push_back( value );
delta = value;
i+=2;
}
else
{
unsigned short value = (unsigned short)(temp[i] + delta);
output.push_back( value );
delta = value;
}
}
if ( output.size() % 2 )
{
output.resize( output.size() - 1 );
}
std::cout << length << " -> " << output.size() * 2 << std::endl;
}
int main(int argc, char *argv [])
{
if( argc < 2 )
{
std::cerr << argv[0] << "input.dcm [output.dcm]" << std::endl;
std::cerr << "will default to 'outrle.dcm' unless output.dcm is specified."
<< std::endl;
return 1;
}
const char *filename = argv[1];
{
std::cerr << "Failed to read: " << filename << std::endl;
return 1;
}
if ( compressiontype.
IsEmpty() )
return 1;
std::string comprle = "PMSCT_RLE1";
std::string comprgb = "PMSCT_RGB1";
bool isrle = false;
bool isrgb = false;
if( strncmp( bv->
GetPointer(), comprle.c_str(), comprle.size() ) == 0 )
{
isrle = true;
}
if( strncmp( bv->
GetPointer(), comprgb.c_str(), comprgb.size() ) == 0 )
{
isrgb = true;
std::cerr << "See: pmsct_rgb1.cxx instead" << std::endl;
return 1;
}
if( !isrgb && !isrle ) return 1;
if ( compressionpixeldata.
IsEmpty() )
return 1;
if( bv2l == at1l )
{
}
else
{
std::vector<unsigned short> buffer;
pixeldata.SetByteValue( (char*)&buffer[0], (uint32_t)(buffer.size() * sizeof( unsigned short )) );
}
std::string outfilename;
if (argc > 2)
outfilename = argv[2];
else
outfilename = "outrle.dcm";
{
std::cerr << "Failed to write" << std::endl;
return 1;
}
std::cout << "success !" << std::endl;
return 0;
}