1 files changed, 379 insertions, 0 deletions
diff --git a/lib/libucsi/atsc/rrt_section.h b/lib/libucsi/atsc/rrt_section.h
new file mode 100644
index 0000000..fba4596
--- /dev/null
+++ b/lib/libucsi/atsc/rrt_section.h
@@ -0,0 +1,379 @@
+/*
+ * 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_RRT_SECTION_H
+#define _UCSI_ATSC_RRT_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/atsc/section.h>
+#include <libucsi/atsc/types.h>
+
+/**
+ * atsc_rrt_section structure.
+ */
+struct atsc_rrt_section {
+	struct atsc_section_psip head;
+
+	uint8_t rating_region_name_length;
+	/* struct atsc_text rating_region_name_text */
+	/* struct atsc_rrt_section_part2 part2 */
+} __ucsi_packed;
+
+struct atsc_rrt_section_part2 {
+	uint8_t dimensions_defined;
+	/* struct atsc_rrt_dimension dimensions[] */
+	/* struct atsc_rrt_section_part3 part3 */
+} __ucsi_packed;
+
+struct atsc_rrt_dimension {
+	uint8_t dimension_name_length;
+	/* struct atsc_text dimension_name_text */
+	/* struct atsc_rrt_dimension_part2 part2 */
+} __ucsi_packed;
+
+struct atsc_rrt_dimension_part2 {
+  EBIT3(uint8_t reserved			: 3; ,
+	uint8_t graduated_scale			: 1; ,
+	uint8_t values_defined			: 4; );
+	/* struct atsc_rrt_dimension_value values[] */
+} __ucsi_packed;
+
+struct atsc_rrt_dimension_value {
+	uint8_t abbrev_rating_value_length;
+	/* struct atsc_text abbrev_rating_value_text */
+	/* struct atsc_rrt_dimension_value_part2 */
+} __ucsi_packed;
+
+struct atsc_rrt_dimension_value_part2 {
+	uint8_t rating_value_length;
+	/* struct atsc_text rating_value_text */
+} __ucsi_packed;
+
+struct atsc_rrt_section_part3 {
+  EBIT2(uint16_t reserved			: 6; ,
+	uint16_t descriptors_length		:10; );
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+
+static inline struct atsc_rrt_dimension *
+		atsc_rrt_section_dimensions_first(struct atsc_rrt_section_part2 *part2);
+static inline struct atsc_rrt_dimension *
+		atsc_rrt_section_dimensions_next(struct atsc_rrt_section_part2 *part2,
+		struct atsc_rrt_dimension *pos,
+		int idx);
+static inline struct atsc_rrt_dimension_value *
+		atsc_rrt_dimension_part2_values_first(struct atsc_rrt_dimension_part2 *part2);
+static inline struct atsc_rrt_dimension_value *
+		atsc_rrt_dimension_part2_values_next(struct atsc_rrt_dimension_part2 *part2,
+		struct atsc_rrt_dimension_value *pos,
+		int idx);
+
+/**
+ * Process a atsc_rrt_section.
+ *
+ * @param section Pointer to anj atsc_section_psip structure.
+ * @return atsc_rrt_section pointer, or NULL on error.
+ */
+struct atsc_rrt_section *atsc_rrt_section_codec(struct atsc_section_psip *section);
+
+/**
+ * Accessor for the rating_region field of an RRT.
+ *
+ * @param rrt RRT pointer.
+ * @return The transport_stream_id.
+ */
+static inline uint8_t atsc_rrt_section_rating_region(struct atsc_rrt_section *rrt)
+{
+	return rrt->head.ext_head.table_id_ext & 0xff;
+}
+
+/**
+ * Accessor for the rating_region_name_text field of an RRT.
+ *
+ * @param rrt RRT pointer.
+ * @return struct atsc_text pointer, or NULL.
+ */
+static inline struct atsc_text *atsc_rrt_section_rating_region_name_text(struct atsc_rrt_section *rrt)
+{
+	if (rrt->rating_region_name_length == 0)
+		return NULL;
+
+	return (struct atsc_text*)(((uint8_t*) rrt) + sizeof(struct atsc_rrt_section));
+}
+
+/**
+ * Accessor for the part2 field of an RRT.
+ *
+ * @param rrt RRT pointer.
+ * @return struct atsc_rrt_section_part2 pointer.
+ */
+static inline struct atsc_rrt_section_part2 *atsc_rrt_section_part2(struct atsc_rrt_section *rrt)
+{
+	return (struct atsc_rrt_section_part2 *)
+		(((uint8_t*) rrt) + sizeof(struct atsc_rrt_section) +
+			rrt->rating_region_name_length);
+}
+
+/**
+ * Iterator for the dimensions field in an atsc_rrt_section_part2.
+ *
+ * @param rrt atsc_rrt_section pointer.
+ * @param pos Variable containing a pointer to the current atsc_rrt_dimension.
+ * @param idx Integer used to count which dimension we are in.
+ */
+#define atsc_rrt_section_dimensions_for_each(rrt, pos, idx) \
+	for ((pos) = atsc_rrt_section_dimensions_first(rrt), idx=0; \
+	     (pos); \
+	     (pos) = atsc_rrt_section_dimensions_next(rrt, pos, ++idx))
+
+/**
+ * Accessor for the dimension_name_text field of an atsc_rrt_dimension.
+ *
+ * @param dimension atsc_rrt_dimension pointer.
+ * @return struct atsc_text pointer, or NULL on error.
+ */
+static inline struct atsc_text *atsc_rrt_dimension_name_text(struct atsc_rrt_dimension *dimension)
+{
+	if (dimension->dimension_name_length == 0)
+		return NULL;
+
+	return (struct atsc_text*)(((uint8_t*) dimension) + sizeof(struct atsc_rrt_dimension));
+}
+
+/**
+ * Accessor for the part2 field of an atsc_rrt_dimension.
+ *
+ * @param dimension atsc_rrt_dimension pointer.
+ * @return struct atsc_rrt_dimension_part2 pointer.
+ */
+static inline struct atsc_rrt_dimension_part2 *atsc_rrt_dimension_part2(struct atsc_rrt_dimension *dimension)
+{
+	return (struct atsc_rrt_dimension_part2 *)
+			(((uint8_t*) dimension) +
+			sizeof(struct atsc_rrt_dimension) +
+			dimension->dimension_name_length);
+}
+
+/**
+ * Iterator for the values field in a atsc_rrt_dimension_part2 structure.
+ *
+ * @param part2 atsc_rrt_dimension_part2 pointer.
+ * @param pos Variable containing a pointer to the current value.
+ * @param idx Integer used to count which value we are in
+ */
+#define atsc_rrt_dimension_part2_values_for_each(part2, pos, idx) \
+	for ((pos) = atsc_rrt_dimension_part2_values_first(part2), idx=0; \
+	     (pos); \
+	     (pos) = atsc_rrt_dimension_part2_values_next(part2, pos, ++idx))
+
+/**
+ * Accessor for the dimension_name_text field of an atsc_rrt_dimension.
+ *
+ * @param dimension atsc_rrt_dimension pointer.
+ * @return struct atsc_text pointer.
+ */
+static inline struct atsc_text *
+	atsc_rrt_dimension_value_abbrev_rating_value_text(struct atsc_rrt_dimension_value *value)
+{
+	if (value->abbrev_rating_value_length == 0)
+		return NULL;
+
+	return (struct atsc_text*)(((uint8_t*) value) + sizeof(struct atsc_rrt_dimension_value));
+}
+
+/**
+ * Accessor for the part2 field of an atsc_rrt_dimension_value.
+ *
+ * @param value atsc_rrt_dimension_value pointer.
+ * @return struct atsc_rrt_dimension_value_part2 pointer.
+ */
+static inline struct atsc_rrt_dimension_value_part2 *atsc_rrt_dimension_value_part2(struct atsc_rrt_dimension_value *value)
+{
+	return (struct atsc_rrt_dimension_value_part2 *)
+		(((uint8_t*) value) +
+		sizeof(struct atsc_rrt_dimension_value) +
+		value->abbrev_rating_value_length);
+}
+
+/**
+ * Accessor for the rating_value_text field of an atsc_rrt_dimension_value_part2.
+ *
+ * @param part2 atsc_rrt_dimension_value_part2 pointer.
+ * @return struct atsc_text pointer.
+ */
+static inline struct atsc_text *atsc_rrt_dimension_value_part2_rating_value_text(struct atsc_rrt_dimension_value_part2 *part2)
+{
+	if (part2->rating_value_length == 0)
+		return NULL;
+
+	return (struct atsc_text*)(((uint8_t*) part2) + sizeof(struct atsc_rrt_dimension_value_part2));
+}
+
+/**
+ * Accessor for the third part of an atsc_rrt_section.
+ *
+ * @param part2 atsc_rrt_section_part2 pointer.
+ * @return atsc_rrt_section_part3 pointer.
+ */
+static inline struct atsc_rrt_section_part3 *
+	atsc_rrt_section_part3(struct atsc_rrt_section_part2 *part2)
+{
+	int pos = sizeof(struct atsc_rrt_section_part2);
+
+	struct atsc_rrt_dimension *cur_dimension;
+	int idx;
+	atsc_rrt_section_dimensions_for_each(part2, cur_dimension, idx) {
+		pos += sizeof(struct atsc_rrt_dimension);
+		pos += cur_dimension->dimension_name_length;
+		pos += sizeof(struct atsc_rrt_dimension_part2);
+
+		// now we need to iterate over the values. yuck
+		struct atsc_rrt_dimension_part2 *dpart2 = atsc_rrt_dimension_part2(cur_dimension);
+		struct atsc_rrt_dimension_value *cur_value;
+		int vidx;
+		atsc_rrt_dimension_part2_values_for_each(dpart2, cur_value, vidx) {
+			pos += sizeof(struct atsc_rrt_dimension_value);
+			pos += cur_value->abbrev_rating_value_length;
+
+			struct atsc_rrt_dimension_value_part2 *vpart2 = atsc_rrt_dimension_value_part2(cur_value);
+			pos += sizeof(struct atsc_rrt_dimension_value_part2);
+			pos += vpart2->rating_value_length;
+		}
+	}
+
+	return (struct atsc_rrt_section_part3 *) (((uint8_t*) part2) + pos);
+}
+
+/**
+ * Iterator for the descriptors field in a atsc_rrt_section structure.
+ *
+ * @param part3 atsc_rrt_section_part3 pointer.
+ * @param pos Variable containing a pointer to the current descriptor.
+ */
+#define atsc_rrt_section_part3_descriptors_for_each(part3, pos) \
+	for ((pos) = atsc_rrt_section_part3_descriptors_first(part3); \
+	     (pos); \
+	     (pos) = atsc_rrt_section_part3_descriptors_next(part3, pos))
+
+
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct atsc_rrt_dimension *
+	atsc_rrt_section_dimensions_first(struct atsc_rrt_section_part2 *part2)
+{
+	size_t pos = sizeof(struct atsc_rrt_section_part2);
+
+	if (part2->dimensions_defined == 0)
+		return NULL;
+
+	return (struct atsc_rrt_dimension*) (((uint8_t *) part2) + pos);
+}
+
+static inline struct atsc_rrt_dimension *
+	atsc_rrt_section_dimensions_next(struct atsc_rrt_section_part2 *part2,
+					 struct atsc_rrt_dimension *pos,
+					 int idx)
+{
+	if (idx >= part2->dimensions_defined)
+		return NULL;
+
+	struct atsc_rrt_dimension_part2 *dpart2 = atsc_rrt_dimension_part2(pos);
+	int len = sizeof(struct atsc_rrt_dimension_part2);
+
+	// now we need to iterate over the values. yuck
+	struct atsc_rrt_dimension_value *cur_value;
+	int vidx;
+	atsc_rrt_dimension_part2_values_for_each(dpart2, cur_value, vidx) {
+		len += sizeof(struct atsc_rrt_dimension_value);
+		len += cur_value->abbrev_rating_value_length;
+
+		struct atsc_rrt_dimension_value_part2 *vpart2 = atsc_rrt_dimension_value_part2(cur_value);
+		len += sizeof(struct atsc_rrt_dimension_value_part2);
+		len += vpart2->rating_value_length;
+	}
+
+	return (struct atsc_rrt_dimension *) (((uint8_t*) dpart2) + len);
+}
+
+static inline struct atsc_rrt_dimension_value *
+	atsc_rrt_dimension_part2_values_first(struct atsc_rrt_dimension_part2 *part2)
+{
+	size_t pos = sizeof(struct atsc_rrt_dimension_part2);
+
+	if (part2->values_defined == 0)
+		return NULL;
+
+	return (struct atsc_rrt_dimension_value*) (((uint8_t *) part2) + pos);
+}
+
+static inline struct atsc_rrt_dimension_value *
+	atsc_rrt_dimension_part2_values_next(struct atsc_rrt_dimension_part2 *part2,
+					     struct atsc_rrt_dimension_value *pos,
+					     int idx)
+{
+	if (idx >= part2->values_defined)
+		return NULL;
+
+	struct atsc_rrt_dimension_value_part2 *vpart2 = atsc_rrt_dimension_value_part2(pos);
+	int len = sizeof(struct atsc_rrt_dimension_value_part2);
+	len += vpart2->rating_value_length;
+
+	return (struct atsc_rrt_dimension_value *) (((uint8_t*) vpart2) + len);
+}
+
+static inline struct descriptor *
+	atsc_rrt_section_part3_descriptors_first(struct atsc_rrt_section_part3 *part3)
+{
+	size_t pos = sizeof(struct atsc_rrt_section_part3);
+
+	if (part3->descriptors_length == 0)
+		return NULL;
+
+	return (struct descriptor*) (((uint8_t *) part3) + pos);
+}
+
+static inline struct descriptor *
+	atsc_rrt_section_part3_descriptors_next(struct atsc_rrt_section_part3 *part3,
+						struct descriptor *pos)
+{
+	return next_descriptor((uint8_t*) part3 + sizeof(struct atsc_rrt_section_part3),
+				part3->descriptors_length,
+				pos);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif