diff --git a/dvb/si/desc_4d.h b/dvb/si/desc_4d.h new file mode 100644 index 0000000..20e6dad --- /dev/null +++ b/dvb/si/desc_4d.h @@ -0,0 +1,162 @@ +/***************************************************************************** + * desc_4d.h: ETSI EN 300 468 Descriptor 0x4d: Short event descriptor + ***************************************************************************** + * Copyright (C) 2011 Unix Solutions Ltd. + * + * Authors: Georgi Chorbadzhiyski + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject + * to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + *****************************************************************************/ + +/* + * Normative references: + * - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems) + */ + +#ifndef __BITSTREAM_DVB_DESC_4D_H__ +#define __BITSTREAM_DVB_DESC_4D_H__ + +#include +#include +#include +#include + +#ifdef __cplusplus +extern "C" +{ +#endif + +/***************************************************************************** + * Descriptor 0x4d: Short event descriptor + *****************************************************************************/ +#define DESC4D_HEADER_SIZE (DESC_HEADER_SIZE + 3) + +static inline void desc4d_init(uint8_t *p_desc) +{ + desc_set_tag(p_desc, 0x4d); +} + +static inline const uint8_t *desc4d_get_lang(const uint8_t *p_desc) +{ + return p_desc + DESC_HEADER_SIZE; +} + +static inline void desc4d_set_lang(uint8_t *p_desc, const uint8_t p_lang[3]) +{ + p_desc[2] = p_lang[0]; + p_desc[3] = p_lang[1]; + p_desc[4] = p_lang[2]; +} + +static inline const uint8_t *desc4d_get_event_name(const uint8_t *p_desc, + uint8_t *pi_length) +{ + const uint8_t *p = p_desc + DESC4D_HEADER_SIZE; + *pi_length = p[0]; + return p + 1; +} + +static inline void desc4d_set_event_name(uint8_t *p_desc, + const uint8_t *p_event_name, + uint8_t i_length) +{ + uint8_t *p = p_desc + DESC4D_HEADER_SIZE; + p[0] = i_length; + memcpy(p + 1, p_event_name, i_length); +} + +static inline uint8_t *desc4d_get_text(const uint8_t *p_desc, + uint8_t *pi_length) +{ + const uint8_t *p = (uint8_t *)p_desc + DESC4D_HEADER_SIZE + 1 + p_desc[5]; + *pi_length = p[0]; + return (uint8_t *)p + 1; +} + +static inline void desc4d_set_text(uint8_t *p_desc, + const uint8_t *p_text, + uint8_t i_length) +{ + uint8_t *p = p_desc + DESC4D_HEADER_SIZE + 1 + p_desc[5]; + p[0] = i_length; + memcpy(p + 1, p_text, i_length); +} + +static inline void desc4d_set_length(uint8_t *p_desc) +{ + uint8_t i_event_name_len, i_text_len; + desc4d_get_event_name(p_desc, &i_event_name_len); + desc4d_get_text(p_desc, &i_text_len); + desc_set_length(p_desc, DESC4D_HEADER_SIZE - DESC_HEADER_SIZE + + 1 + i_event_name_len + + 1 + i_text_len); +} + +static inline bool desc4d_validate(const uint8_t *p_desc) +{ + uint8_t i_length = desc_get_length(p_desc); + const uint8_t *p = p_desc + DESC4D_HEADER_SIZE; + + p += *p + 1; + if (DESC4D_HEADER_SIZE + 2 > i_length + DESC_HEADER_SIZE || + p + 1 - p_desc > i_length + DESC_HEADER_SIZE) + return false; + + p += *p + 1; + if (p - p_desc > i_length + DESC_HEADER_SIZE) + return false; + + return true; +} + +static inline void desc4d_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) +{ + uint8_t i_event_name_length, i_text_length; + const uint8_t *p_event_name = desc4d_get_event_name(p_desc, &i_event_name_length); + const uint8_t *p_text = desc4d_get_text(p_desc, &i_text_length); + char *psz_event_name = dvb_string_get(p_event_name, i_event_name_length, + pf_iconv, iconv_opaque); + char *psz_text = dvb_string_get(p_text, i_text_length, + pf_iconv, iconv_opaque); + switch (i_print_type) { + case PRINT_XML: + psz_event_name = dvb_string_xml_escape(psz_event_name); + psz_text = dvb_string_xml_escape(psz_text); + pf_print(print_opaque, + "", + (char *)desc4d_get_lang(p_desc), psz_event_name, psz_text); + break; + default: + pf_print(print_opaque, + " - desc 4d short_event lang=%3.3s event_name=\"%s\" text=\"%s\"", + (char *)desc4d_get_lang(p_desc), psz_event_name, psz_text); + } + free(psz_event_name); + free(psz_text); +} + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/dvb/si/descs_list.h b/dvb/si/descs_list.h index c2e7294..4b8d700 100644 --- a/dvb/si/descs_list.h +++ b/dvb/si/descs_list.h @@ -42,6 +42,7 @@ #include #include #include +#include #include #include #include diff --git a/mpeg/psi/descs_print.h b/mpeg/psi/descs_print.h index f24f510..62acb82 100644 --- a/mpeg/psi/descs_print.h +++ b/mpeg/psi/descs_print.h @@ -125,6 +125,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length, CASE_DESC_ICONV(47) CASE_DESC_ICONV(48) CASE_DESC(4a) + CASE_DESC_ICONV(4d) CASE_DESC(56) CASE_DESC(59) CASE_DESC(5a)