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#include <qpdf/Pl_LZWDecoder.hh>
#include <qpdf/Pl_StdioFile.hh>
#include <qpdf/QUtil.hh>
#include <iostream>
#include <stdlib.h>
#include <string.h>
int main(int argc, char* argv[])
{
bool early_code_change = true;
if ((argc == 4) && (strcmp(argv[3], "--no-early-code-change") == 0))
{
early_code_change = false;
}
if (argc < 3)
{
std::cerr << "Usage: lzw infile outfile [ --no-early-code-change ]"
<< std::endl;
exit(2);
}
try
{
char* infilename = argv[1];
char* outfilename = argv[2];
FILE* infile = QUtil::fopen_wrapper("open input file",
fopen(infilename, "rb"));
FILE* outfile = QUtil::fopen_wrapper("open output file",
fopen(outfilename, "wb"));
Pl_StdioFile out("output", outfile);
Pl_LZWDecoder decode("decode", &out, early_code_change);
unsigned char buf[10000];
bool done = false;
while (! done)
{
size_t len = fread(buf, 1, sizeof(buf), infile);
if (len <= 0)
{
done = true;
}
else
{
decode.write(buf, len);
}
}
decode.finish();
}
catch (std::exception& e)
{
std::cerr << e.what() << std::endl;
exit(2);
}
return 0;
}
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