dvb/si: Add support for ST (Stuffing table).

dvb/si.h

@@ -47,5 +47,6 @@
 #include <bitstream/dvb/si/tdt.h>
 #include <bitstream/dvb/si/tot.h>
 #include <bitstream/dvb/si/rst.h>
+#include <bitstream/dvb/si/st.h>
 
 #endif

dvb/si/st.h

+/*****************************************************************************
+ * st.h: ETSI EN 300 468 Stuffing Table (ST)
+ *****************************************************************************
+ * Copyright (C) 2011 Unix Solutions Ltd.
+ *
+ * Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject
+ * to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *****************************************************************************/
+
+/*
+ * Normative references:
+ *  - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
+ */
+
+#ifndef __BITSTREAM_DVB_ST_H__
+#define __BITSTREAM_DVB_ST_H__
+
+#include <bitstream/common.h>
+#include <bitstream/mpeg/psi/psi.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/*****************************************************************************
+ * Stuffing Table
+ *****************************************************************************/
+#define ST_TABLE_ID            0x72
+#define ST_HEADER_SIZE         PSI_HEADER_SIZE
+
+static inline void st_init(uint8_t *p_st)
+{
+    psi_init(p_st, false);
+    psi_set_tableid(p_st, ST_TABLE_ID);
+    psi_set_length(p_st, 0);
+}
+
+static inline bool st_validate(const uint8_t *p_st)
+{
+    if (psi_get_tableid(p_st) != ST_TABLE_ID)
+        return false;
+
+    return true;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif