1 files changed, 55 insertions, 0 deletions
diff --git a/gr-blocks/lib/stream_mux_impl.h b/gr-blocks/lib/stream_mux_impl.h
new file mode 100644
index 000000000..7b2dac95c
--- /dev/null
+++ b/gr-blocks/lib/stream_mux_impl.h
@@ -0,0 +1,55 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_STREAM_MUX_IMPL_H
+#define INCLUDED_STREAM_MUX_IMPL_H
+
+#include <blocks/stream_mux.h>
+
+namespace gr {
+  namespace blocks {
+
+    class BLOCKS_API stream_mux_impl : public stream_mux
+    {
+    private:
+      size_t d_itemsize;
+      unsigned int d_stream;    // index of currently selected stream
+      int d_residual;           // number if items left to put into current stream
+      gr_vector_int d_lengths;  // number if items to pack per stream
+
+      void increment_stream();
+
+      void forecast(int noutput_items, gr_vector_int &ninput_items_required);
+      
+    public:
+      stream_mux_impl(size_t itemsize, const std::vector<int> &lengths);
+
+      int general_work(int noutput_items,
+		       gr_vector_int &ninput_items,
+		       gr_vector_const_void_star &input_items,
+		       gr_vector_void_star &output_items);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_STREAM_MUX_IMPL_H */