From ab959d7b4194715870128e616b8e29d4a101e488 Mon Sep 17 00:00:00 2001 From: etobi Date: Tue, 3 Sep 2013 09:48:41 +0200 Subject: Imported Upstream version 1.1.1+rev1207 --- lib/libucsi/atsc/stt_section.h | 105 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 lib/libucsi/atsc/stt_section.h (limited to 'lib/libucsi/atsc/stt_section.h') 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 +#include + +/** + * 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 -- cgit v1.2.3