1 /*****************************************************************************
2 * desc_5d.h: ETSI EN 300 468 Descriptor 0x5d: Multilingual service name
3 *****************************************************************************
4 * Copyright (C) 2009-2010 VideoLAN
5 *
6 * Authors: Christophe Massiot <massiot@via.ecp.fr>
7 * Georgi Chorbadzhiyski <georgi@unixsol.org>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining
10 * a copy of this software and associated documentation files (the
11 * "Software"), to deal in the Software without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject
15 * to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
24 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 *****************************************************************************/
28
29 /*
30 * Normative references:
31 * - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
32 */
33
34 #ifndef __BITSTREAM_DVB_DESC_5D_H__
35 #define __BITSTREAM_DVB_DESC_5D_H__
36
37 #include <bitstream/common.h>
38 #include <bitstream/mpeg/psi/descriptors.h>
39 #include <bitstream/mpeg/psi/desc_0a.h>
40 #include <bitstream/dvb/si/strings.h>
41
42 #ifdef __cplusplus
43 extern "C"
44 {
45 #endif
46
47 /*****************************************************************************
48 * Descriptor 0x5d: Multilingual service name
49 *****************************************************************************/
50 #define DESC5D_HEADER_SIZE DESC_HEADER_SIZE
51 #define DESC5D_DATA_SIZE 5
52
desc5d_init(uint8_t * p_desc)53 static inline void desc5d_init(uint8_t *p_desc)
54 {
55 desc_set_tag(p_desc, 0x5d);
56 }
57
58 #define desc5dn_set_code desc0an_set_code
59 #define desc5dn_get_code desc0an_get_code
60
desc5dn_get_provider_name_length(const uint8_t * p_desc_n)61 static inline uint8_t desc5dn_get_provider_name_length(const uint8_t *p_desc_n)
62 {
63 return p_desc_n[3];
64 }
65
desc5dn_get_provider_name(const uint8_t * p_desc_n,uint8_t * pi_length)66 static inline const uint8_t *desc5dn_get_provider_name(const uint8_t *p_desc_n, uint8_t *pi_length)
67 {
68 *pi_length = desc5dn_get_provider_name_length(p_desc_n);
69 return p_desc_n + 4;
70 }
71
desc5dn_set_provider_name(uint8_t * p_desc_n,const uint8_t * p_network_name,uint8_t i_length)72 static inline void desc5dn_set_provider_name(uint8_t *p_desc_n, const uint8_t *p_network_name, uint8_t i_length)
73 {
74 p_desc_n[3] = i_length;
75 memcpy(p_desc_n + 4, p_network_name, i_length);
76 }
77
desc5dn_get_service_name_length(const uint8_t * p_desc_n)78 static inline uint8_t desc5dn_get_service_name_length(const uint8_t *p_desc_n)
79 {
80 return p_desc_n[4 + desc5dn_get_provider_name_length(p_desc_n)];
81 }
82
desc5dn_get_service_name(const uint8_t * p_desc_n,uint8_t * pi_length)83 static inline const uint8_t *desc5dn_get_service_name(const uint8_t *p_desc_n, uint8_t *pi_length)
84 {
85 *pi_length = desc5dn_get_service_name_length(p_desc_n);
86 return p_desc_n + 5 + desc5dn_get_provider_name_length(p_desc_n);
87 }
88
desc5dn_set_service_name(uint8_t * p_desc_n,const uint8_t * p_network_name,uint8_t i_length)89 static inline void desc5dn_set_service_name(uint8_t *p_desc_n, const uint8_t *p_network_name, uint8_t i_length)
90 {
91 p_desc_n[4 + desc5dn_get_provider_name_length(p_desc_n)] = i_length;
92 memcpy(p_desc_n + 5 + desc5dn_get_provider_name_length(p_desc_n),
93 p_network_name, i_length);
94 }
95
desc5d_get_data(const uint8_t * p_desc,uint8_t n)96 static inline uint8_t *desc5d_get_data(const uint8_t *p_desc, uint8_t n)
97 {
98 const uint8_t *p_desc_n = p_desc + DESC5D_HEADER_SIZE;
99 uint8_t i_desc_size = desc_get_length(p_desc);
100
101 while (n) {
102 if (p_desc_n + DESC5D_DATA_SIZE - p_desc > i_desc_size)
103 return NULL;
104 p_desc_n += DESC5D_DATA_SIZE
105 + desc5dn_get_provider_name_length(p_desc_n)
106 + desc5dn_get_service_name_length(p_desc_n);
107 n--;
108 }
109 if (p_desc_n - p_desc > i_desc_size)
110 return NULL;
111 return (uint8_t *)p_desc_n;
112 }
113
desc5d_validate(const uint8_t * p_desc)114 static inline bool desc5d_validate(const uint8_t *p_desc)
115 {
116 const uint8_t *p_desc_n = p_desc + DESC5D_HEADER_SIZE;
117 int i_desc_size = desc_get_length(p_desc);
118 while (i_desc_size > 0)
119 {
120 uint8_t i_data_sz = DESC5D_DATA_SIZE
121 + desc5dn_get_provider_name_length(p_desc_n)
122 + desc5dn_get_service_name_length(p_desc_n);
123 i_desc_size -= i_data_sz;
124 p_desc_n += i_data_sz;
125 }
126 return i_desc_size == 0;
127 }
128
desc5d_print(const uint8_t * p_desc,f_print pf_print,void * print_opaque,f_iconv pf_iconv,void * iconv_opaque,print_type_t i_print_type)129 static inline void desc5d_print(const uint8_t *p_desc,
130 f_print pf_print, void *print_opaque,
131 f_iconv pf_iconv, void *iconv_opaque,
132 print_type_t i_print_type)
133 {
134 const uint8_t *p_desc_n;
135 uint8_t j = 0;
136
137 while ((p_desc_n = desc5d_get_data(p_desc, j++)) != NULL) {
138 uint8_t i_provider_name_length, i_service_name_length;
139 const uint8_t *p_provider_name = desc5dn_get_provider_name(p_desc_n, &i_provider_name_length);
140 const uint8_t *p_service_name = desc5dn_get_service_name(p_desc_n, &i_service_name_length);
141 char *psz_provider_name = dvb_string_get(p_provider_name, i_provider_name_length, pf_iconv, iconv_opaque);
142 char *psz_service_name = dvb_string_get(p_service_name, i_service_name_length, pf_iconv, iconv_opaque);
143 switch (i_print_type) {
144 case PRINT_XML:
145 psz_provider_name = dvb_string_xml_escape(psz_provider_name);
146 pf_print(print_opaque,
147 "<MULTILINGUAL_SERVICE_NAME_DESC code=\"%3.3s\" provider=\"%s\" service=\"%s\"/>",
148 desc5dn_get_code(p_desc_n),
149 psz_provider_name,
150 psz_service_name
151 );
152 break;
153 default:
154 pf_print(print_opaque,
155 " - desc 5d multilingual_service_name code=\"%3.3s\" provider=\"%s\" service=\"%s\"",
156 desc5dn_get_code(p_desc_n),
157 psz_provider_name,
158 psz_service_name
159 );
160 }
161 free(psz_provider_name);
162 free(psz_service_name);
163 }
164 }
165
166 #ifdef __cplusplus
167 }
168 #endif
169
170 #endif
171