mirror of https://github.com/qpdf/qpdf.git
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
#include <qpdf/Pl_LZWDecoder.hh>
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#include <qpdf/Pl_StdioFile.hh>
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#include <qpdf/QUtil.hh>
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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int
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main(int argc, char* argv[])
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{
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bool early_code_change = true;
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if ((argc == 4) && (strcmp(argv[3], "--no-early-code-change") == 0)) {
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early_code_change = false;
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}
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if (argc < 3) {
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std::cerr << "Usage: lzw infile outfile [ --no-early-code-change ]" << std::endl;
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exit(2);
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}
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try {
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char* infilename = argv[1];
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char* outfilename = argv[2];
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FILE* infile = QUtil::safe_fopen(infilename, "rb");
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FILE* outfile = QUtil::safe_fopen(outfilename, "wb");
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Pl_StdioFile out("output", outfile);
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Pl_LZWDecoder decode("decode", &out, early_code_change);
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unsigned char buf[10000];
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bool done = false;
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while (!done) {
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size_t len = fread(buf, 1, sizeof(buf), infile);
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if (len <= 0) {
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done = true;
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} else {
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decode.write(buf, len);
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}
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}
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decode.finish();
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} catch (std::exception& e) {
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std::cerr << e.what() << std::endl;
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exit(2);
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}
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return 0;
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}
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