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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/atsc/stt_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 '')
-rw-r--r-- | lib/libucsi/atsc/stt_section.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/lib/libucsi/atsc/stt_section.h b/lib/libucsi/atsc/stt_section.h new file mode 100644 index 0000000..79db5a1 --- /dev/null +++ b/lib/libucsi/atsc/stt_section.h @@ -0,0 +1,105 @@ +/* + * 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_STT_SECTION_H +#define _UCSI_ATSC_STT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <libucsi/atsc/section.h> +#include <libucsi/atsc/types.h> + +/** + * atsc_stt_section structure. + */ +struct atsc_stt_section { + struct atsc_section_psip head; + + atsctime_t system_time; + uint8_t gps_utc_offset; + EBIT4(uint16_t DS_status : 1; , + uint16_t reserved : 2; , + uint16_t DS_day_of_month : 5; , + uint16_t DS_hour : 8; ); + /* struct descriptor descriptors[] */ +} __ucsi_packed; + +/** + * Process a atsc_stt_section. + * + * @param section Pointer to an atsc_section_psip structure. + * @return atsc_stt_section pointer, or NULL on error. + */ +struct atsc_stt_section *atsc_stt_section_codec(struct atsc_section_psip *section); + +/** + * Iterator for the services field in a atsc_stt_section. + * + * @param stt atsc_stt_section pointer. + * @param pos Variable containing a pointer to the current descriptor. + */ +#define atsc_stt_section_descriptors_for_each(stt, pos) \ + for ((pos) = atsc_stt_section_descriptors_first(stt); \ + (pos); \ + (pos) = atsc_stt_section_descriptors_next(stt, pos)) + + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct descriptor * + atsc_stt_section_descriptors_first(struct atsc_stt_section *stt) +{ + size_t pos = sizeof(struct atsc_stt_section); + + if (pos >= section_ext_length(&stt->head.ext_head)) + return NULL; + + return (struct descriptor*) ((uint8_t *) stt + pos); +} + +static inline struct descriptor * + atsc_stt_section_descriptors_next(struct atsc_stt_section *stt, + struct descriptor *pos) +{ + int len = section_ext_length(&stt->head.ext_head); + len -= sizeof(struct atsc_stt_section); + + return next_descriptor((uint8_t*) stt + sizeof(struct atsc_stt_section), + len, + pos); +} + +#ifdef __cplusplus +} +#endif + +#endif |