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authorMark Purcell <msp@debian.org>2008-06-22 11:00:40 +1000
committeretobi <git@e-tobi.net>2013-09-03 09:48:42 +0200
commit891c51ff368ed700dec6025eeb47ce4d96f76418 (patch)
tree3729664829e4faa691d403274f38eb10890b533c /lib/libucsi/mpeg/metadata_section.h
parent1c6e1f28f54ec2606c23936c1d8689f2be55a86c (diff)
parentab959d7b4194715870128e616b8e29d4a101e488 (diff)
downloadlinux-dvb-apps-891c51ff368ed700dec6025eeb47ce4d96f76418.tar.gz
Imported Debian patch 1.1.1+rev1207-1debian/1.1.1+rev1207-1
Diffstat (limited to 'lib/libucsi/mpeg/metadata_section.h')
-rw-r--r--lib/libucsi/mpeg/metadata_section.h122
1 files changed, 122 insertions, 0 deletions
diff --git a/lib/libucsi/mpeg/metadata_section.h b/lib/libucsi/mpeg/metadata_section.h
new file mode 100644
index 0000000..62c4e03
--- /dev/null
+++ b/lib/libucsi/mpeg/metadata_section.h
@@ -0,0 +1,122 @@
+/*
+ * 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_METADATA_SECTION_H
+#define _UCSI_MPEG_METADATA_SECTION_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <libucsi/section.h>
+
+/**
+ * mpeg_metadata_section structure.
+ */
+struct mpeg_metadata_section {
+ struct section_ext head;
+
+ /* uint8_t data[] */
+} __ucsi_packed;
+
+/**
+ * Process an mpeg_metadata_section structure.
+ *
+ * @param section Pointer to the section_ext structure.
+ * @return Pointer to the mpeg_metadata_section structure, or NULL on error.
+ */
+extern struct mpeg_metadata_section *mpeg_metadata_section_codec(struct section_ext *section);
+
+/**
+ * Accessor for the random_access_indicator field of a metadata section.
+ *
+ * @param metadata metadata section pointer.
+ * @return The random_access_indicator.
+ */
+static inline uint8_t mpeg_metadata_section_random_access_indicator(struct mpeg_metadata_section *metadata)
+{
+ return metadata->head.reserved >> 1;
+}
+
+/**
+ * Accessor for the decoder_config_flag field of a metadata section.
+ *
+ * @param metadata metadata section pointer.
+ * @return The decoder_config_flag.
+ */
+static inline uint8_t mpeg_metadata_section_decoder_config_flag(struct mpeg_metadata_section *metadata)
+{
+ return metadata->head.reserved & 1;
+}
+
+/**
+ * Accessor for the fragment_indicator field of a metadata section.
+ *
+ * @param metadata metadata section pointer.
+ * @return The fragment_indicator.
+ */
+static inline uint8_t mpeg_metadata_section_fragment_indicator(struct mpeg_metadata_section *metadata)
+{
+ return metadata->head.reserved1;
+}
+
+/**
+ * Accessor for the service_id field of a metadata section.
+ *
+ * @param metadata metadata section pointer.
+ * @return The service_id.
+ */
+static inline uint16_t mpeg_metadata_section_service_id(struct mpeg_metadata_section *metadata)
+{
+ return metadata->head.table_id_ext >> 8;
+}
+
+/**
+ * Retrieve pointer to data field of an mpeg_metadata_section.
+ *
+ * @param s mpeg_metadata_section pointer.
+ * @return Pointer to the field.
+ */
+static inline uint8_t *
+ mpeg_metadata_section_data(struct mpeg_metadata_section *s)
+{
+ return (uint8_t *) s + sizeof(struct mpeg_metadata_section);
+}
+
+
+/**
+ * Determine length of the data field of an mpeg_copyright_descriptor.
+ *
+ * @param s mpeg_metadata_section_data pointer.
+ * @return Length of field in bytes.
+ */
+static inline int
+ mpeg_metadata_section_data_length(struct mpeg_metadata_section *s)
+{
+ return section_ext_length(&s->head) - sizeof(struct mpeg_metadata_section);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif