1 /* 2 * Copyright (c) 2011-2014 - Mauro Carvalho Chehab 3 * Copyright (c) 2012 - Andre Roth <neolynx@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU Lesser General Public License as published by 7 * the Free Software Foundation version 2.1 of the License. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html 18 * 19 */ 20 21 /** 22 * @file desc_language.h 23 * @ingroup descriptors 24 * @brief Provides the descriptors for the ISO639 language descriptor 25 * @copyright GNU Lesser General Public License version 2.1 (LGPLv2.1) 26 * @author Mauro Carvalho Chehab 27 * @author Andre Roth 28 * 29 * @par Relevant specs 30 * The descriptor described herein is defined at: 31 * - ISO/IEC 13818-1 32 * 33 * @par Bug Report 34 * Please submit bug reports and patches to linux-media@vger.kernel.org 35 */ 36 37 module libdvbv5_d.desc_language; 38 39 import libdvbv5_d.descriptors: dvb_desc; 40 import libdvbv5_d.dvb_fe: dvb_v5_fe_parms; 41 42 extern (C): 43 44 /** 45 * @struct dvb_desc_language 46 * @ingroup descriptors 47 * @brief Structure containing the ISO639 language descriptor 48 * 49 * @param type descriptor tag 50 * @param length descriptor length 51 * @param next pointer to struct dvb_desc 52 * @param language ISO639 language string 53 * @param audio_type audio type: 0 = undefined, 1 = clean effects, 54 * 2 = hearing impaired, 3 = visual impired 55 * comentary, other values are reserved. 56 */ 57 struct dvb_desc_language 58 { 59 align (1): 60 61 ubyte type; 62 ubyte length; 63 dvb_desc* next; 64 65 ubyte[4] language; 66 ubyte audio_type; 67 } 68 69 // struct dvb_v5_fe_parms; 70 71 /** 72 * @brief Initializes and parses the language descriptor 73 * @ingroup descriptors 74 * 75 * @param parms struct dvb_v5_fe_parms pointer to the opened device 76 * @param buf buffer containing the descriptor's raw data 77 * @param desc pointer to struct dvb_desc to be allocated and filled 78 * 79 * This function initializes and makes sure that all fields will follow the CPU 80 * endianness. Due to that, the content of the buffer may change. 81 * 82 * Currently, no memory is allocated internally. 83 * 84 * @return On success, it returns the size of the allocated struct. 85 * A negative value indicates an error. 86 */ 87 int dvb_desc_language_init ( 88 dvb_v5_fe_parms* parms, 89 const(ubyte)* buf, 90 dvb_desc* desc); 91 92 /** 93 * @brief Prints the content of the language descriptor 94 * @ingroup descriptors 95 * 96 * @param parms struct dvb_v5_fe_parms pointer to the opened device 97 * @param desc pointer to struct dvb_desc 98 */ 99 void dvb_desc_language_print (dvb_v5_fe_parms* parms, const(dvb_desc)* desc);