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/ett_section.h | 91 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 lib/libucsi/atsc/ett_section.h (limited to 'lib/libucsi/atsc/ett_section.h') diff --git a/lib/libucsi/atsc/ett_section.h b/lib/libucsi/atsc/ett_section.h new file mode 100644 index 0000000..e2bb510 --- /dev/null +++ b/lib/libucsi/atsc/ett_section.h @@ -0,0 +1,91 @@ +/* + * 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_ETT_SECTION_H +#define _UCSI_ATSC_ETT_SECTION_H 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include + +enum atsc_etm_type { + ATSC_ETM_CHANNEL = 0x00, + ATSC_ETM_EVENT = 0x02, +}; + +/** + * atsc_ett_section structure. + */ +struct atsc_ett_section { + struct atsc_section_psip head; + + EBIT3(uint32_t ETM_source_id :16; , + uint32_t ETM_sub_id :14; , + uint32_t ETM_type : 2; ); + /* struct atsc_text extended_text_message */ +} __ucsi_packed; + +/** + * Process a atsc_ett_section. + * + * @param section Pointer to an atsc_section_psip structure. + * @return atsc_ett_section pointer, or NULL on error. + */ +struct atsc_ett_section *atsc_ett_section_codec(struct atsc_section_psip *section); + +/** + * Accessor for the extended_text_message part of an atsc_ett_section. + * + * @param ett atsc_ett_section pointer. + * @return atsc_text pointer, or NULL on error. + */ +static inline struct atsc_text* + atsc_ett_section_extended_text_message(struct atsc_ett_section *ett) +{ + int pos = sizeof(struct atsc_ett_section); + int len = section_ext_length(&ett->head.ext_head) - sizeof(struct atsc_ett_section); + + if (len == 0) + return NULL; + + return (struct atsc_text*)(((uint8_t*) ett) + pos); +} + +/** + * Accessor for the extended_text_message part of an atsc_ett_section. + * + * @param ett atsc_ett_section pointer. + * @return The length. + */ +static inline int + atsc_ett_section_extended_text_message_length(struct atsc_ett_section *ett) +{ + return section_ext_length(&ett->head.ext_head) - sizeof(struct atsc_ett_section); +} + +#ifdef __cplusplus +} +#endif + +#endif -- cgit v1.2.3