1 files changed, 113 insertions, 0 deletions
diff --git a/gr-blocks/lib/annotator_1to1_impl.cc b/gr-blocks/lib/annotator_1to1_impl.cc
new file mode 100644
index 0000000000..e7f105fc02
--- /dev/null
+++ b/gr-blocks/lib/annotator_1to1_impl.cc
@@ -0,0 +1,113 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2010,2013 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "annotator_1to1_impl.h"
+#include <gr_io_signature.h>
+#include <string.h>
+#include <iostream>
+#include <iomanip>
+
+namespace gr {
+  namespace blocks {
+
+    annotator_1to1::sptr
+    annotator_1to1::make(int when, size_t sizeof_stream_item)
+    {
+      return gnuradio::get_initial_sptr
+        (new annotator_1to1_impl(when, sizeof_stream_item));
+    }
+
+    annotator_1to1_impl::annotator_1to1_impl(int when, size_t sizeof_stream_item)
+      : gr_sync_block("annotator_1to1",
+                      gr_make_io_signature(1, -1, sizeof_stream_item),
+                      gr_make_io_signature(1, -1, sizeof_stream_item)),
+        d_itemsize(sizeof_stream_item), d_when((uint64_t)when)
+    {
+      set_tag_propagation_policy(TPP_ONE_TO_ONE);
+
+      d_tag_counter = 0;
+      set_relative_rate(1.0);
+    }
+
+    annotator_1to1_impl::~annotator_1to1_impl()
+    {
+    }
+
+    int
+    annotator_1to1_impl::work(int noutput_items,
+                              gr_vector_const_void_star &input_items,
+                              gr_vector_void_star &output_items)
+    {
+      const float *in = (const float*)input_items[0];
+      float *out = (float*)output_items[0];
+
+      std::stringstream str;
+      str << name() << unique_id();
+
+      uint64_t abs_N = 0;
+      int ninputs = input_items.size();
+      for(int i = 0; i < ninputs; i++) {
+        abs_N = nitems_read(i);
+
+        std::vector<gr_tag_t> all_tags;
+        get_tags_in_range(all_tags, i, abs_N, abs_N + noutput_items);
+
+        std::vector<gr_tag_t>::iterator itr;
+        for(itr = all_tags.begin(); itr != all_tags.end(); itr++) {
+          d_stored_tags.push_back(*itr);
+        }
+      }
+
+      // Storing the current noutput_items as the value to the "noutput_items" key
+      pmt::pmt_t srcid = pmt::string_to_symbol(str.str());
+      pmt::pmt_t key = pmt::string_to_symbol("seq");
+
+      // Work does nothing to the data stream; just copy all inputs to outputs
+      // Adds a new tag when the number of items read is a multiple of d_when
+      abs_N = nitems_read(0);
+      int noutputs = output_items.size();
+      for(int j = 0; j < noutput_items; j++) {
+        // the min() is a hack to make sure this doesn't segfault if
+        // there are a different number of ins and outs. This is
+        // specifically designed to test the 1-to-1 propagation policy.
+        for(int i = 0; i < std::min(noutputs, ninputs); i++) {
+          if(abs_N % d_when == 0) {
+            pmt::pmt_t value = pmt::from_uint64(d_tag_counter++);
+            add_item_tag(i, abs_N, key, value, srcid);
+          }
+
+          in  = (const float*)input_items[i];
+          out = (float*)output_items[i];
+          out[j] = in[j];
+        }
+        abs_N++;
+      }
+
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */