1 files changed, 215 insertions, 0 deletions
diff --git a/lib/libucsi/atsc/mgt_section.h b/lib/libucsi/atsc/mgt_section.h
new file mode 100644
index 0000000..3102a54
--- /dev/null
+++ b/lib/libucsi/atsc/mgt_section.h
@@ -0,0 +1,215 @@
+/*
+ * section and descriptor parser
+ *
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#ifndef _UCSI_ATSC_MGT_SECTION_H
+#define _UCSI_ATSC_MGT_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/atsc/section.h>
+
+enum atsc_mgt_section_table_type {
+	ATSC_MGT_TABLE_TYPE_TVCT_CURRENT = 0,
+	ATSC_MGT_TABLE_TYPE_TVCT_NEXT = 1,
+	ATSC_MGT_TABLE_TYPE_CVCT_CURRENT = 2,
+	ATSC_MGT_TABLE_TYPE_CVCT_NEXT = 3,
+	ATSC_MGT_TABLE_TYPE_CHANNEL_ETT = 4,
+	ATSC_MGT_TABLE_TYPE_DCCSCT = 5,
+};
+
+/**
+ * atsc_mgt_section structure.
+ */
+struct atsc_mgt_section {
+	struct atsc_section_psip head;
+
+	uint16_t tables_defined;
+	/* struct atsc_mgt_table tables[] */
+	/* struct atsc_mgt_section_part2 part2 */
+} __ucsi_packed;
+
+struct atsc_mgt_table {
+	uint16_t table_type;
+  EBIT2(uint16_t reserved			: 3; ,
+	uint16_t table_type_PID			:13; );
+  EBIT2(uint8_t reserved1			: 3; ,
+	uint8_t table_type_version_number	: 5; );
+	uint32_t number_bytes;
+  EBIT2(uint16_t reserved2			: 4; ,
+	uint16_t table_type_descriptors_length	:12; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+struct atsc_mgt_section_part2 {
+  EBIT2(uint16_t reserved			: 4; ,
+	uint16_t descriptors_length		:12; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+static inline struct atsc_mgt_table * atsc_mgt_section_tables_first(struct atsc_mgt_section *mgt);
+static inline struct atsc_mgt_table *
+	atsc_mgt_section_tables_next(struct atsc_mgt_section *mgt, struct atsc_mgt_table *pos, int idx);
+
+/**
+ * Process a atsc_mgt_section.
+ *
+ * @param section Pointer to an atsc_section_psip structure.
+ * @return atsc_mgt_section pointer, or NULL on error.
+ */
+struct atsc_mgt_section *atsc_mgt_section_codec(struct atsc_section_psip *section);
+
+/**
+ * Iterator for the tables field in an atsc_mgt_section.
+ *
+ * @param mgt atsc_mgt_section pointer.
+ * @param pos Variable containing a pointer to the current atsc_mgt_table.
+ * @param idx Integer used to count which table we in.
+ */
+#define atsc_mgt_section_tables_for_each(mgt, pos, idx) \
+	for ((pos) = atsc_mgt_section_tables_first(mgt), idx=0; \
+	     (pos); \
+	     (pos) = atsc_mgt_section_tables_next(mgt, pos, ++idx))
+
+/**
+ * Iterator for the descriptors field in a atsc_mgt_table structure.
+ *
+ * @param table atsc_mgt_table pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define atsc_mgt_table_descriptors_for_each(table, pos) \
+	for ((pos) = atsc_mgt_table_descriptors_first(table); \
+	     (pos); \
+	     (pos) = atsc_mgt_table_descriptors_next(table, pos))
+
+/**
+ * Accessor for the second part of an atsc_mgt_section.
+ *
+ * @param mgt atsc_mgt_section pointer.
+ * @return atsc_mgt_section_part2 pointer.
+ */
+static inline struct atsc_mgt_section_part2 *
+	atsc_mgt_section_part2(struct atsc_mgt_section *mgt)
+{
+	int pos = sizeof(struct atsc_mgt_section);
+
+	struct atsc_mgt_table *cur_table;
+	int idx;
+	atsc_mgt_section_tables_for_each(mgt, cur_table, idx) {
+		pos += sizeof(struct atsc_mgt_table);
+		pos += cur_table->table_type_descriptors_length;
+	}
+
+	return (struct atsc_mgt_section_part2 *) (((uint8_t*) mgt) + pos);
+}
+
+/**
+ * Iterator for the descriptors field in a atsc_mgt_section structure.
+ *
+ * @param part2 atsc_mgt_section_part2 pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define atsc_mgt_section_part2_descriptors_for_each(part2, pos) \
+	for ((pos) = atsc_mgt_section_part2_descriptors_first(part2); \
+	     (pos); \
+	     (pos) = atsc_mgt_section_part2_descriptors_next(part2, pos))
+
+
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct atsc_mgt_table *
+	atsc_mgt_section_tables_first(struct atsc_mgt_section *mgt)
+{
+	size_t pos = sizeof(struct atsc_mgt_section);
+
+	if (mgt->tables_defined == 0)
+		return NULL;
+
+	return (struct atsc_mgt_table*) (((uint8_t *) mgt) + pos);
+}
+
+static inline struct atsc_mgt_table *
+	atsc_mgt_section_tables_next(struct atsc_mgt_section *mgt,
+				     struct atsc_mgt_table *pos,
+				     int idx)
+{
+	if (idx >= mgt->tables_defined)
+		return NULL;
+
+	return (struct atsc_mgt_table *)
+		(((uint8_t*) pos) + sizeof(struct atsc_mgt_table) + pos->table_type_descriptors_length);
+}
+
+static inline struct descriptor *
+	atsc_mgt_table_descriptors_first(struct atsc_mgt_table *table)
+{
+	size_t pos = sizeof(struct atsc_mgt_table);
+
+	if (table->table_type_descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor*) (((uint8_t *) table) + pos);
+}
+
+static inline struct descriptor *
+	atsc_mgt_table_descriptors_next(struct atsc_mgt_table *table,
+					struct descriptor *pos)
+{
+	return next_descriptor((uint8_t*) table + sizeof(struct atsc_mgt_table),
+				table->table_type_descriptors_length,
+				pos);
+}
+
+static inline struct descriptor *
+	atsc_mgt_section_part2_descriptors_first(struct atsc_mgt_section_part2 *part2)
+{
+	size_t pos = sizeof(struct atsc_mgt_section_part2);
+
+	if (part2->descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor*) (((uint8_t *) part2) + pos);
+}
+
+static inline struct descriptor *
+	atsc_mgt_section_part2_descriptors_next(struct atsc_mgt_section_part2 *part2,
+						struct descriptor *pos)
+{
+	return next_descriptor((uint8_t*) part2 + sizeof(struct atsc_mgt_section_part2),
+				part2->descriptors_length,
+				pos);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif