Implement user-provided stream filters

Refactor QPDF_Stream to use stream filter classes to handle supported
stream filters as well.

1 files changed, 19 insertions, 0 deletions

diff --git a/libqpdf/QPDFStreamFilter.cc b/libqpdf/QPDFStreamFilter.cc
new file mode 100644
index 00000000..66a2f762
--- /dev/null
+++ b/libqpdf/QPDFStreamFilter.cc
@@ -0,0 +1,19 @@
+#include <qpdf/QPDFStreamFilter.hh>
+
+bool
+QPDFStreamFilter::setDecodeParms(QPDFObjectHandle decode_parms)
+{
+    return decode_parms.isNull();
+}
+
+bool
+QPDFStreamFilter::isSpecializedCompression()
+{
+    return false;
+}
+
+bool
+QPDFStreamFilter::isLossyCompression()
+{
+    return false;
+}