Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 94 insertions, 0 deletions

diff --git a/lib/libucsi/mpeg/cat_section.h b/lib/libucsi/mpeg/cat_section.h
new file mode 100644
index 0000000..7ed34a3
--- /dev/null
+++ b/lib/libucsi/mpeg/cat_section.h
@@ -0,0 +1,94 @@
+/*
+ * 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_MPEG_CAT_SECTION_H
+#define _UCSI_MPEG_CAT_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/section.h>
+
+/**
+ * mpeg_cat_section structure.
+ */
+struct mpeg_cat_section {
+	struct section_ext head;
+
+	/* struct descriptor descriptors[] */
+} __ucsi_packed;
+
+/**
+ * Process an mpeg_cat_section.
+ *
+ * @param section The generic section_ext structure.
+ * @return Pointer to an mpeg_cat_section structure, or NULL on error.
+ */
+extern struct mpeg_cat_section *mpeg_cat_section_codec(struct section_ext *section);
+
+/**
+ * Convenience iterator for descriptors field of an mpeg_cat_section.
+ *
+ * @param cat The mpeg_cat_section pointer.
+ * @param pos Variable holding a pointer to the current descriptor.
+ */
+#define mpeg_cat_section_descriptors_for_each(cat, pos) \
+	for ((pos) = mpeg_cat_section_descriptors_first(cat); \
+	     (pos); \
+	     (pos) = mpeg_cat_section_descriptors_next(cat, pos))
+
+
+
+
+
+
+
+
+
+/******************************** PRIVATE CODE ********************************/
+static inline struct descriptor *
+	mpeg_cat_section_descriptors_first(struct mpeg_cat_section *cat)
+{
+	size_t pos = sizeof(struct mpeg_cat_section);
+
+	if (pos >= section_ext_length(&cat->head))
+		return NULL;
+
+	return (struct descriptor*)((uint8_t *) cat + pos);
+}
+
+
+static inline struct descriptor *
+	mpeg_cat_section_descriptors_next(struct mpeg_cat_section *cat,
+					  struct descriptor* pos)
+{
+	return next_descriptor((uint8_t *) cat + sizeof(struct mpeg_cat_section),
+			       section_ext_length(&cat->head) - sizeof(struct mpeg_cat_section),
+			       pos);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif