qpdf/libqpdf/qpdf/SF_RunLengthDecode.hh

36 lines
824 B
C++

#include <qpdf/QPDFStreamFilter.hh>
#include <qpdf/Pl_RunLength.hh>
#include <memory>
#ifndef SF_RUNLENGTHDECODE_HH
#define SF_RUNLENGTHDECODE_HH
class SF_RunLengthDecode: public QPDFStreamFilter
{
public:
SF_RunLengthDecode() = default;
virtual ~SF_RunLengthDecode() = default;
virtual Pipeline* getDecodePipeline(Pipeline* next) override
{
this->pipeline = std::make_shared<Pl_RunLength>(
"runlength decode", next, Pl_RunLength::a_decode);
return this->pipeline.get();
}
static std::shared_ptr<QPDFStreamFilter> factory()
{
return std::make_shared<SF_RunLengthDecode>();
}
virtual bool isSpecializedCompression() override
{
return true;
}
private:
std::shared_ptr<Pipeline> pipeline;
};
#endif // SF_RUNLENGTHDECODE_HH