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author | Mark Purcell <msp@debian.org> | 2008-06-22 11:00:40 +1000 |
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committer | etobi <git@e-tobi.net> | 2013-09-03 09:48:42 +0200 |
commit | 891c51ff368ed700dec6025eeb47ce4d96f76418 (patch) | |
tree | 3729664829e4faa691d403274f38eb10890b533c /lib/libucsi/mpeg/metadata_section.h | |
parent | 1c6e1f28f54ec2606c23936c1d8689f2be55a86c (diff) | |
parent | ab959d7b4194715870128e616b8e29d4a101e488 (diff) | |
download | linux-dvb-apps-debian/1.1.1+rev1207-1.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.h | 122 |
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 |