Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 160 insertions, 0 deletions

diff --git a/lib/libucsi/dvb/eit_section.h b/lib/libucsi/dvb/eit_section.h
new file mode 100644
index 0000000..a2f3e4f
--- /dev/null
+++ b/lib/libucsi/dvb/eit_section.h
@@ -0,0 +1,160 @@
+/*
+ * 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_EIT_SECTION_H
+#define _UCSI_DVB_EIT_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/section.h>
+#include <libucsi/dvb/types.h>
+
+
+/**
+ * dvb_eit_section structure.
+ */
+struct dvb_eit_section {
+	struct section_ext head;
+
+	uint16_t transport_stream_id;
+	uint16_t original_network_id;
+	uint8_t segment_last_section_number;
+	uint8_t last_table_id;
+	/* struct eit_event events[] */
+} __ucsi_packed;
+
+/**
+ * An entry in the events field of a dvb_eit_section.
+ */
+struct dvb_eit_event {
+	uint16_t event_id;
+	dvbdate_t start_time;
+	dvbduration_t duration;
+  EBIT3(uint16_t running_status		: 3;  ,
+	uint16_t free_ca_mode		: 1;  ,
+	uint16_t descriptors_loop_length:12; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+/**
+ * Process a dvb_eit_section.
+ *
+ * @param section Pointer to a generic section_ext structure.
+ * @return Pointer to a dvb_eit_section, or NULL on error.
+ */
+struct dvb_eit_section *dvb_eit_section_codec(struct section_ext *section);
+
+/**
+ * Accessor for the service_id field of an EIT.
+ *
+ * @param eit EIT pointer.
+ * @return The service_id.
+ */
+static inline uint16_t dvb_eit_section_service_id(struct dvb_eit_section *eit)
+{
+	return eit->head.table_id_ext;
+}
+
+/**
+ * Iterator for the events field of a dvb_eit_section.
+ *
+ * @param eit dvb_eit_section pointer.
+ * @param pos Variable containing a pointer to the current dvb_eit_event.
+ */
+#define dvb_eit_section_events_for_each(eit, pos) \
+	for ((pos) = dvb_eit_section_events_first(eit); \
+	     (pos); \
+	     (pos) = dvb_eit_section_events_next(eit, pos))
+
+/**
+ * Iterator for the descriptors field of a dvb_eit_event.
+ *
+ * @param eit dvb_eit_event pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define dvb_eit_event_descriptors_for_each(event, pos) \
+	for ((pos) = dvb_eit_event_descriptors_first(event); \
+	     (pos); \
+	     (pos) = dvb_eit_event_descriptors_next(event, pos))
+
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct dvb_eit_event *
+	dvb_eit_section_events_first(struct dvb_eit_section *eit)
+{
+	size_t pos = sizeof(struct dvb_eit_section);
+
+	if (pos >= section_ext_length(&eit->head))
+		return NULL;
+
+        return (struct dvb_eit_event*) ((uint8_t *) eit + pos);
+}
+
+static inline struct dvb_eit_event *
+	dvb_eit_section_events_next(struct dvb_eit_section *eit,
+				    struct dvb_eit_event *pos)
+{
+	uint8_t *end = (uint8_t*) eit + section_ext_length(&eit->head);
+	uint8_t *next =	(uint8_t *) pos +
+			sizeof(struct dvb_eit_event) +
+			pos->descriptors_loop_length;
+
+	if (next >= end)
+		return NULL;
+
+	return (struct dvb_eit_event *) next;
+}
+
+static inline struct descriptor *
+	dvb_eit_event_descriptors_first(struct dvb_eit_event * t)
+{
+	if (t->descriptors_loop_length == 0)
+		return NULL;
+
+	return (struct descriptor *)
+		((uint8_t *) t + sizeof(struct dvb_eit_event));
+}
+
+static inline struct descriptor *
+	dvb_eit_event_descriptors_next(struct dvb_eit_event * t,
+				       struct descriptor* pos)
+{
+	return next_descriptor((uint8_t*) t + sizeof(struct dvb_eit_event),
+			       t->descriptors_loop_length,
+			       pos);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif