runlength.cc
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#include <qpdf/Pl_RunLength.hh>
#include <qpdf/Pl_StdioFile.hh>
#include <qpdf/QUtil.hh>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
int
main(int argc, char* argv[])
{
if (argc != 4) {
std::cerr << "Usage: runlength {-encode|-decode} infile outfile" << std::endl;
exit(2);
}
bool encode = (strcmp("-encode", argv[1]) == 0);
char* infilename = argv[2];
char* outfilename = argv[3];
FILE* infile = QUtil::safe_fopen(infilename, "rb");
FILE* outfile = QUtil::safe_fopen(outfilename, "wb");
Pl_StdioFile out("stdout", outfile);
unsigned char buf[100];
bool done = false;
Pl_RunLength rl("runlength", &out, (encode ? Pl_RunLength::a_encode : Pl_RunLength::a_decode));
while (!done) {
size_t len = fread(buf, 1, sizeof(buf), infile);
if (len <= 0) {
done = true;
} else {
rl.write(buf, len);
}
}
rl.finish();
fclose(infile);
fclose(outfile);
return 0;
}