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/dvb/rst_section.h | 110 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 lib/libucsi/dvb/rst_section.h (limited to 'lib/libucsi/dvb/rst_section.h') diff --git a/lib/libucsi/dvb/rst_section.h b/lib/libucsi/dvb/rst_section.h new file mode 100644 index 0000000..4b3360b --- /dev/null +++ b/lib/libucsi/dvb/rst_section.h @@ -0,0 +1,110 @@ +/* + * 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_DVB_RST_SECTION_H +#define _UCSI_DVB_RST_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include + +/** + * dvb_rst_section structure. + */ +struct dvb_rst_section { + struct section head; + + /* struct dvb_rst_status statuses[] */ +}; + +/** + * An entry in the statuses field of a dvb_rst_section structure. + */ +struct dvb_rst_status { + uint16_t transport_stream_id; + uint16_t original_network_id; + uint16_t service_id; + uint16_t event_id; + EBIT2(uint8_t reserved : 5; , + uint8_t running_status : 3; ); +}; + +/** + * Process a dvb_rst_section. + * + * @param section Pointer to a generic section strcuture. + * @return dvb_rst_section pointer, or NULL on error. + */ +struct dvb_rst_section *dvb_rst_section_codec(struct section *section); + +/** + * Iterator for entries in the statuses field of a dvb_rst_section. + * + * @param rst dvb_rst_section pointer. + * @param pos Variable containing a pointer to the current dvb_rst_status. + */ +#define dvb_rst_section_statuses_for_each(rst, pos) \ + for ((pos) = dvb_rst_section_statuses_first(rst); \ + (pos); \ + (pos) = dvb_rst_section_statuses_next(rst, pos)) + + + + + + + + + + +/******************************** PRIVATE CODE ********************************/ +static inline struct dvb_rst_status * + dvb_rst_section_statuses_first(struct dvb_rst_section *rst) +{ + size_t pos = sizeof(struct dvb_rst_section); + + if (pos >= section_length(&rst->head)) + return NULL; + + return (struct dvb_rst_status*) ((uint8_t *) rst + pos); +} + +static inline struct dvb_rst_status * + dvb_rst_section_statuses_next(struct dvb_rst_section * rst, + struct dvb_rst_status * pos) +{ + uint8_t *end = (uint8_t*) rst + section_length(&rst->head); + uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_rst_status); + + if (next >= end) + return NULL; + + return (struct dvb_rst_status *) next; +} + +#ifdef __cplusplus +} +#endif + +#endif -- cgit v1.2.3