Implement Pl_DCT pipeline

Additional testing is added in later commits to be supported by
additional changes in the library.

1 files changed, 44 insertions, 0 deletions

diff --git a/libtests/dct_uncompress.cc b/libtests/dct_uncompress.cc
new file mode 100644
index 00000000..1ab1ae21
--- /dev/null
+++ b/libtests/dct_uncompress.cc
@@ -0,0 +1,44 @@
+#include <qpdf/Pl_DCT.hh>
+#include <qpdf/Pl_StdioFile.hh>
+#include <qpdf/QUtil.hh>
+
+#include <stdio.h>
+#include <string.h>
+#include <iostream>
+#include <stdlib.h>
+
+int main(int argc, char* argv[])
+{
+    if (argc != 3)
+    {
+	std::cerr << "Usage: dct_uncompress infile outfile"
+                  << std::endl;
+	exit(2);
+    }
+
+    char* infilename = argv[1];
+    char* outfilename = argv[2];
+
+    FILE* infile = QUtil::safe_fopen(infilename, "rb");
+    FILE* outfile = QUtil::safe_fopen(outfilename, "wb");
+    Pl_StdioFile out("stdout", outfile);
+    unsigned char buf[100];
+    bool done = false;
+    Pl_DCT dct("dct", &out);
+    while (! done)
+    {
+	size_t len = fread(buf, 1, sizeof(buf), infile);
+	if (len <= 0)
+	{
+	    done = true;
+	}
+	else
+	{
+	    dct.write(buf, len);
+	}
+    }
+    dct.finish();
+    fclose(infile);
+    fclose(outfile);
+    return 0;
+}