1 files changed, 39 insertions, 0 deletions
diff --git a/libqpdf/qpdf/SF_DCTDecode.hh b/libqpdf/qpdf/SF_DCTDecode.hh
new file mode 100644
index 00000000..28aa42c1
--- /dev/null
+++ b/libqpdf/qpdf/SF_DCTDecode.hh
@@ -0,0 +1,39 @@
+#include <qpdf/QPDFStreamFilter.hh>
+#include <qpdf/Pl_DCT.hh>
+#include <memory>
+
+#ifndef SF_DCTDECODE_HH
+#define SF_DCTDECODE_HH
+
+class SF_DCTDecode: public QPDFStreamFilter
+{
+  public:
+    SF_DCTDecode() = default;
+    virtual ~SF_DCTDecode() = default;
+
+    virtual Pipeline* getDecodePipeline(Pipeline* next) override
+    {
+        this->pipeline = std::make_shared<Pl_DCT>("DCT decode", next);
+        return this->pipeline.get();
+    }
+
+    static std::shared_ptr<QPDFStreamFilter> factory()
+    {
+        return std::make_shared<SF_DCTDecode>();
+    }
+
+    virtual bool isSpecializedCompression() override
+    {
+        return true;
+    }
+
+    virtual bool isLossyCompression() override
+    {
+        return true;
+    }
+
+  private:
+    std::shared_ptr<Pipeline> pipeline;
+};
+
+#endif // SF_DCTDECODE_HH