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In Pl_TIFFPredictor::processRow buffer output

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This commit is contained in:
m-holger 2024-01-27 17:03:32 +00:00
parent 20ca1e8644
commit d946ad6c30
2 changed files with 4 additions and 2 deletions
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5
libqpdf/Pl_TIFFPredictor.cc
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@ -78,6 +78,7 @@ Pl_TIFFPredictor::processRow()
}
bw.flush();
} else {
out.clear();
auto next = cur_row.begin();
auto cr_end = cur_row.end();
auto pr_end = previous.end();
@ -93,10 +94,10 @@ Pl_TIFFPredictor::processRow()
new_sample += *prev;
*prev = new_sample;
}
auto out = static_cast<unsigned char>(255U & new_sample);
p_next->write(&out, 1);
out.push_back(static_cast<unsigned char>(255U & new_sample));
}
}
p_next->write(out.data(), out.size());
}
}

1
libqpdf/qpdf/Pl_TIFFPredictor.hh
View File

@ -35,6 +35,7 @@ class Pl_TIFFPredictor: public Pipeline
unsigned int bits_per_sample;
std::vector<unsigned char> cur_row;
std::vector<long long> previous;
std::vector<unsigned char> out;
Pipeline* p_next;
};