1 files changed, 232 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/extended_event_descriptor.h b/lib/libucsi/dvb/extended_event_descriptor.h
new file mode 100644
index 0000000..bba04b0
--- /dev/null
+++ b/lib/libucsi/dvb/extended_event_descriptor.h
@@ -0,0 +1,232 @@
+/*
+ * 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_DVB_EXTENDED_EVENT_DESCRIPTOR
+#define _UCSI_DVB_EXTENDED_EVENT_DESCRIPTOR 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/descriptor.h>
+#include <libucsi/endianops.h>
+#include <libucsi/types.h>
+
+/**
+ * dvb_extended_event_descriptor structure.
+ */
+struct dvb_extended_event_descriptor {
+	struct descriptor d;
+
+  EBIT2(uint8_t descriptor_number	: 4; ,
+	uint8_t last_descriptor_number	: 4; );
+	iso639lang_t language_code;
+	uint8_t length_of_items;
+	/* struct dvb_extended_event_item items[] */
+	/* struct dvb_extended_event_descriptor_part2 part2 */
+} __ucsi_packed;
+
+/**
+ * An entry in the items field of a dvb_extended_event_descriptor.
+ */
+struct dvb_extended_event_item {
+	uint8_t item_description_length;
+	/* uint8_t item_description[] */
+	/* struct dvb_extended_event_item_part2 part2 */
+} __ucsi_packed;
+
+/**
+ * The second part of a dvb_extended_event_item, following the variable length
+ * description field.
+ */
+struct dvb_extended_event_item_part2 {
+	uint8_t item_length;
+	/* uint8_t item[] */
+} __ucsi_packed;
+
+/**
+ * The second part of a dvb_extended_event_descriptor, following the variable
+ * length items field.
+ */
+struct dvb_extended_event_descriptor_part2 {
+	uint8_t text_length;
+	/* uint8_t text[] */
+} __ucsi_packed;
+
+/**
+ * Process a dvb_extended_event_descriptor.
+ *
+ * @param d Generic descriptor structure.
+ * @return dvb_extended_event_descriptor pointer, or NULL on error.
+ */
+static inline struct dvb_extended_event_descriptor*
+	dvb_extended_event_descriptor_codec(struct descriptor* d)
+{
+	uint8_t* buf = (uint8_t*) d + 2;
+	uint32_t pos = 0;
+	uint32_t len = d->len;
+	struct dvb_extended_event_descriptor * p =
+		(struct dvb_extended_event_descriptor *) d;
+	struct dvb_extended_event_descriptor_part2 *p2;
+
+	pos += sizeof(struct dvb_extended_event_descriptor) - 2;
+
+	if (pos > len)
+		return NULL;
+
+	pos += p->length_of_items;
+
+	if (pos > len)
+		return NULL;
+
+	p2 = (struct dvb_extended_event_descriptor_part2*) (buf+pos);
+
+	pos += sizeof(struct dvb_extended_event_descriptor_part2);
+
+	if (pos > len)
+		return NULL;
+
+	pos += p2->text_length;
+
+	if (pos != len)
+		return NULL;
+
+	return p;
+}
+
+/**
+ * Iterator for the items field of a dvb_extended_event_descriptor.
+ *
+ * @param d dvb_extended_event_descriptor pointer.
+ * @param pos Variable containing a pointer to the current dvb_extended_event_item.
+ */
+#define dvb_extended_event_descriptor_items_for_each(d, pos) \
+	for ((pos) = dvb_extended_event_descriptor_items_first(d); \
+	     (pos); \
+	     (pos) = dvb_extended_event_descriptor_items_next(d, pos))
+
+/**
+ * Accessor for the description field of a dvb_extended_event_item.
+ *
+ * @param d dvb_extended_event_item pointer.
+ * @return Pointer to the field.
+ */
+static inline uint8_t*
+	dvb_extended_event_item_description(struct dvb_extended_event_item *d)
+{
+	return (uint8_t*) d + sizeof(struct dvb_extended_event_item);
+}
+
+/**
+ * Accessor for the second part of a dvb_extended_event_item.
+ *
+ * @param dvb_extended_event_item pointer.
+ * @return dvb_extended_event_item_part2 pointer.
+ */
+static inline struct dvb_extended_event_item_part2*
+	dvb_extended_event_item_part2(struct dvb_extended_event_item *d)
+{
+	return (struct dvb_extended_event_item_part2*)
+		((uint8_t*) d + sizeof(struct dvb_extended_event_item) +
+		 d->item_description_length);
+}
+
+/**
+ * Accessor for the item field of a dvb_extended_event_item_part2.
+ *
+ * @param d dvb_extended_event_item_part2 pointer.
+ * @return Pointer to the item field.
+ */
+static inline uint8_t*
+	dvb_extended_event_item_part2_item(struct dvb_extended_event_item_part2 *d)
+{
+	return (uint8_t*) d + sizeof(struct dvb_extended_event_item_part2);
+}
+
+/**
+ * Accessor for the second part of a dvb_extended_event_descriptor.
+ *
+ * @param d dvb_extended_event_descriptor pointer.
+ * @return dvb_extended_event_descriptor_part2 pointer.
+ */
+static inline struct dvb_extended_event_descriptor_part2*
+	dvb_extended_event_descriptor_part2(struct dvb_extended_event_descriptor *d)
+{
+	return (struct dvb_extended_event_descriptor_part2*)
+		((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor) +
+		 d->length_of_items);
+}
+
+/**
+ * Accessor for the text field of an dvb_extended_event_descriptor_part2.
+ *
+ * @param d dvb_extended_event_descriptor_part2 pointer.
+ * @return Pointer to the text field.
+ */
+static inline uint8_t*
+	dvb_extended_event_descriptor_part2_text(struct dvb_extended_event_descriptor_part2 *d)
+{
+	return (uint8_t*)
+		((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor_part2));
+}
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct dvb_extended_event_item*
+	dvb_extended_event_descriptor_items_first(struct dvb_extended_event_descriptor *d)
+{
+	if (d->length_of_items == 0)
+		return NULL;
+
+	return (struct dvb_extended_event_item *)
+		((uint8_t*) d + sizeof(struct dvb_extended_event_descriptor));
+}
+
+static inline struct dvb_extended_event_item*
+	dvb_extended_event_descriptor_items_next(struct dvb_extended_event_descriptor *d,
+						 struct dvb_extended_event_item *pos)
+{
+	struct dvb_extended_event_item_part2* part2 =
+		dvb_extended_event_item_part2(pos);
+	uint8_t *end = (uint8_t*) d + sizeof(struct dvb_extended_event_descriptor) + d->length_of_items;
+	uint8_t *next =	(uint8_t *) part2 +
+			sizeof(struct dvb_extended_event_item_part2) +
+			part2->item_length;
+
+	if (next >= end)
+		return NULL;
+
+	return (struct dvb_extended_event_item *) next;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif