From e611e610f64b473cdd9d0aa5e40690d7550c3cc0 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Mon, 12 Apr 2010 13:39:09 -0700
Subject: Added data type conversion routines to transport api.

---
 host/include/uhd/transport/CMakeLists.txt    |  1 +
 host/include/uhd/transport/convert_types.hpp | 59 ++++++++++++++++++++++++++++
 host/include/uhd/transport/vrt.hpp           |  2 +-
 3 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 host/include/uhd/transport/convert_types.hpp

(limited to 'host/include')

diff --git a/host/include/uhd/transport/CMakeLists.txt b/host/include/uhd/transport/CMakeLists.txt
index 9a94ead1b..4cefffa24 100644
--- a/host/include/uhd/transport/CMakeLists.txt
+++ b/host/include/uhd/transport/CMakeLists.txt
@@ -17,6 +17,7 @@
 
 
 INSTALL(FILES
+    convert_types.hpp
     if_addrs.hpp
     udp_simple.hpp
     udp_zero_copy.hpp
diff --git a/host/include/uhd/transport/convert_types.hpp b/host/include/uhd/transport/convert_types.hpp
new file mode 100644
index 000000000..a4d999240
--- /dev/null
+++ b/host/include/uhd/transport/convert_types.hpp
@@ -0,0 +1,59 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP
+#define INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP
+
+#include <uhd/config.hpp>
+#include <uhd/types/io_type.hpp>
+#include <uhd/types/otw_type.hpp>
+
+namespace uhd{ namespace transport{
+
+/*!
+ * Convert IO samples to OWT samples.
+ *
+ * \param io_buff memory containing samples
+ * \param io_type the type of these samples
+ * \param otw_buff memory to write converted samples
+ * \param otw_type the type of these samples
+ * \param num_samps the number of samples in io_buff
+ */
+UHD_API void convert_io_type_to_otw_type(
+    const void *io_buff, const io_type_t &io_type,
+    void *otw_buff, const otw_type_t &otw_type,
+    size_t num_samps
+);
+
+/*!
+ * Convert OTW samples to IO samples.
+ *
+ * \param otw_buff memory containing samples
+ * \param otw_type the type of these samples
+ * \param io_buff memory to write converted samples
+ * \param io_type the type of these samples
+ * \param num_samps the number of samples in io_buff
+ */
+UHD_API void convert_otw_type_to_io_type(
+    const void *otw_buff, const otw_type_t &otw_type,
+    void *io_buff, const io_type_t &io_type,
+    size_t num_samps
+);
+
+}} //namespace
+
+#endif /* INCLUDED_UHD_TRANSPORT_CONVERT_TYPES_HPP */
diff --git a/host/include/uhd/transport/vrt.hpp b/host/include/uhd/transport/vrt.hpp
index 04945b347..c30a73489 100644
--- a/host/include/uhd/transport/vrt.hpp
+++ b/host/include/uhd/transport/vrt.hpp
@@ -26,7 +26,7 @@ namespace uhd{ namespace transport{
 
 namespace vrt{
 
-    static const size_t max_header_words32 = 7;
+    static const size_t max_header_words32 = 5; //hdr+sid+tsi+tsf (no class id supported)
 
     /*!
      * Pack a vrt header from metadata.
-- 
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