Merge commit 'v3.3.0' into upstream

[debian/gnuradio] / gr-atsc / src / lib / atsc_pad.cc

diff --git a/gr-atsc/src/lib/atsc_pad.cc b/gr-atsc/src/lib/atsc_pad.cc
new file mode 100644 (file)
index 0000000..cd1353e
--- /dev/null
+++ b/gr-atsc/src/lib/atsc_pad.cc
@@ -0,0 +1,78 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006 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 <atsc_pad.h>
+#include <gr_io_signature.h>
+#include <atsc_types.h>
+
+static const int INTR = ATSC_MPEG_PKT_LENGTH;
+
+atsc_pad_sptr
+atsc_make_pad()
+{
+  return atsc_pad_sptr(new atsc_pad());
+}
+
+atsc_pad::atsc_pad()
+  : gr_sync_decimator("atsc_pad",
+                 gr_make_io_signature(1, 1, sizeof(unsigned char)),
+                 gr_make_io_signature(1, 1, sizeof(atsc_mpeg_packet)),
+                 INTR)
+{
+  reset();
+}
+
+void
+atsc_pad::forecast (int noutput_items, gr_vector_int &ninput_items_required)
+{
+  unsigned ninputs = ninput_items_required.size();
+  for (unsigned i = 0; i < ninputs; i++) 
+    ninput_items_required[i] = noutput_items * ATSC_MPEG_PKT_LENGTH;
+}
+
+
+int
+atsc_pad::work (int noutput_items,
+                      gr_vector_const_void_star &input_items,
+                      gr_vector_void_star &output_items)
+{
+  const unsigned char *in = (const unsigned char *) input_items[0];
+  atsc_mpeg_packet *out = (atsc_mpeg_packet *) output_items[0];
+  
+  int i;
+
+  for (i = 0; i < noutput_items; i++){
+    for (int j = 0; j < ATSC_MPEG_PKT_LENGTH; j++)
+       out[i].data[j] = in[i * ATSC_MPEG_PKT_LENGTH + j];
+
+  }
+
+  return noutput_items;
+}
+
+
+
+