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getRawStreamData()
git-svn-id: svn+q:///qpdf/trunk@1010 71b93d88-0707-0410-a8cf-f5a4172ac649
This commit is contained in:
Jay Berkenbilt
parent
54303cea9c
commit
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@ -1,3 +1,8 @@
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2010-08-09 Jay Berkenbilt <ejb@ql.org>
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* Add QPDFObjectHandle::getRawStreamData to return raw
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(unfiltered) stream data.
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2010-08-08 Jay Berkenbilt <ejb@ql.org>
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* 2.2.rc1: release
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2
TODO
2
TODO
@ -1,8 +1,6 @@
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2.2.0
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=====
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* Add QPDFObjectHandle::getRawStreamData()
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* shared library version information already bumped for 2.2.rc1;
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replace 2.2.rc1 with 2.2.0 in manual and update in other places for
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2.2.0.
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@ -216,6 +216,9 @@ class QPDFObjectHandle
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// exception if the stream is filtered and we can't decode it.
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QPDF_DLL
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PointerHolder<Buffer> getStreamData();
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// Returns unfiltered (raw) stream data.
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QPDF_DLL
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PointerHolder<Buffer> getRawStreamData();
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// Write stream data through the given pipeline. A null pipeline
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// value may be used if all you want to do is determine whether a
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@ -343,6 +343,13 @@ QPDFObjectHandle::getStreamData()
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return dynamic_cast<QPDF_Stream*>(obj.getPointer())->getStreamData();
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}
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PointerHolder<Buffer>
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QPDFObjectHandle::getRawStreamData()
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{
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assertType("Stream", isStream());
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return dynamic_cast<QPDF_Stream*>(obj.getPointer())->getRawStreamData();
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}
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bool
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QPDFObjectHandle::pipeStreamData(Pipeline* p, bool filter,
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bool normalize, bool compress)
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@ -75,6 +75,16 @@ QPDF_Stream::getStreamData()
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{
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throw std::logic_error("getStreamData called on unfilterable stream");
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}
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QTC::TC("qpdf", "QPDF_Stream getStreamData");
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return buf.getBuffer();
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}
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PointerHolder<Buffer>
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QPDF_Stream::getRawStreamData()
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{
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Pl_Buffer buf("stream data buffer");
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pipeStreamData(&buf, false, false, false);
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QTC::TC("qpdf", "QPDF_Stream getRawStreamData");
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return buf.getBuffer();
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}
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@ -22,6 +22,7 @@ class QPDF_Stream: public QPDFObject
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bool pipeStreamData(Pipeline*, bool filter,
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bool normalize, bool compress);
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PointerHolder<Buffer> getStreamData();
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PointerHolder<Buffer> getRawStreamData();
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void replaceStreamData(PointerHolder<Buffer> data,
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QPDFObjectHandle const& filter,
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QPDFObjectHandle const& decode_parms);
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@ -2105,6 +2105,16 @@ print "\n";
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removes the key instead.
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</para>
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</listitem>
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<listitem>
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<para>
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Add new method in <classname>QPDFObjectHandle</classname>:
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<function>getRawStreamData</function>, which returns the raw
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(unfiltered) stream data into a buffer. This complements the
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<function>getStreamData</function> method, which returns the
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filtered (uncompressed) stream data and can only be used when
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the stream's data is filterable.
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</para>
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</listitem>
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<listitem>
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<para>
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Provide two new examples:
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@ -183,3 +183,5 @@ QPDFObjectHandle newStream with data 0
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QPDF_Stream pipe no stream data 0
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QPDFObjectHandle prepend page contents 0
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QPDFObjectHandle append page contents 0
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QPDF_Stream getRawStreamData 0
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QPDF_Stream getStreamData 0
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@ -111,7 +111,7 @@ $td->runtest("new stream",
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show_ntests();
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# ----------
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$td->notify("--- Miscellaneous Tests ---");
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$n_tests += 22;
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$n_tests += 23;
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$td->runtest("qpdf version",
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{$td->COMMAND => "qpdf --version"},
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@ -131,6 +131,11 @@ foreach (my $i = 1; $i <= 3; ++$i)
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$td->NORMALIZE_NEWLINES);
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}
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$td->runtest("get stream data",
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{$td->COMMAND => "test_driver 11 stream-data.pdf"},
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{$td->FILE => "test11.out", $td->EXIT_STATUS => 0},
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$td->NORMALIZE_NEWLINES);
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# Make sure we ignore decode parameters that we don't understand
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$td->runtest("unknown decode parameters",
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{$td->COMMAND => "qpdf --check fax-decode-parms.pdf"},
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112
qpdf/qtest/qpdf/stream-data.pdf
Normal file
112
qpdf/qtest/qpdf/stream-data.pdf
Normal file
@ -0,0 +1,112 @@
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%PDF-1.3
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%¿÷¢þ
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%QDF-1.0
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1 0 obj
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<<
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/Pages 2 0 R
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/QStream 3 0 R
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/Type /Catalog
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>>
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endobj
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2 0 obj
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<<
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/Count 1
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/Kids [
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5 0 R
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]
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/Type /Pages
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>>
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endobj
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3 0 obj
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<<
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/Length 4 0 R
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/Filter /ASCIIHexDecode
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>>
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stream
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706F7461746F0A
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endstream
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endobj
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4 0 obj
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15
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endobj
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%% Page 1
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5 0 obj
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<<
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/Contents 6 0 R
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/MediaBox [
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0
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0
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612
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792
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]
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/Parent 2 0 R
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/Resources <<
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/Font <<
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/F1 8 0 R
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>>
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/ProcSet 9 0 R
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>>
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/Type /Page
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>>
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endobj
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%% Contents for page 1
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6 0 obj
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<<
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/Length 7 0 R
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>>
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stream
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BT
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/F1 24 Tf
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72 720 Td
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(Potato) Tj
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ET
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endstream
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endobj
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7 0 obj
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44
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endobj
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8 0 obj
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<<
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/BaseFont /Helvetica
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/Encoding /WinAnsiEncoding
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/Name /F1
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/Subtype /Type1
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/Type /Font
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>>
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endobj
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9 0 obj
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[
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/PDF
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/Text
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]
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endobj
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xref
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0 10
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0000000000 65535 f
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0000000025 00000 n
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0000000096 00000 n
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0000000168 00000 n
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0000000264 00000 n
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0000000293 00000 n
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0000000508 00000 n
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0000000607 00000 n
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0000000626 00000 n
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0000000744 00000 n
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trailer <<
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/Root 1 0 R
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/Size 10
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/ID [<422061d5d2701ad547ece6eb89b05b77><422061d5d2701ad547ece6eb89b05b77>]
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>>
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startxref
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779
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%%EOF
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3
qpdf/qtest/qpdf/test11.out
Normal file
3
qpdf/qtest/qpdf/test11.out
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filtered stream data okay
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raw stream data okay
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test 11 done
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@ -445,6 +445,23 @@ void runtest(int n, char const* filename)
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w.setStreamDataMode(qpdf_s_preserve);
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w.write();
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}
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else if (n == 11)
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{
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QPDFObjectHandle root = pdf.getRoot();
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QPDFObjectHandle qstream = root.getKey("/QStream");
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PointerHolder<Buffer> b1 = qstream.getStreamData();
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PointerHolder<Buffer> b2 = qstream.getRawStreamData();
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if ((b1.getPointer()->getSize() == 7) &&
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(memcmp(b1.getPointer()->getBuffer(), "potato\n", 7) == 0))
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{
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std::cout << "filtered stream data okay" << std::endl;
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}
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if ((b2.getPointer()->getSize() == 15) &&
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(memcmp(b2.getPointer()->getBuffer(), "706F7461746F0A\n", 15) == 0))
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{
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std::cout << "raw stream data okay" << std::endl;
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}
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}
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else
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{
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throw std::runtime_error(std::string("invalid test ") +
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