/***************************************************************************** * desc_58.h: ETSI EN 300 468 Descriptor 0x58: Local time offset 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_58_H__ #define __BITSTREAM_DVB_DESC_58_H__ #include #include #include #include #ifdef __cplusplus extern "C" { #endif /***************************************************************************** * Descriptor 0x58: Local time offset descriptor *****************************************************************************/ #define DESC58_HEADER_SIZE DESC_HEADER_SIZE #define DESC58_LTO_SIZE 13 static inline void desc58_init(uint8_t *p_desc) { desc_set_tag(p_desc, 0x58); } static inline uint8_t *desc58_get_lto(uint8_t *p_desc, uint8_t n) { uint8_t *p_desc_n = p_desc + DESC58_HEADER_SIZE + n * DESC58_LTO_SIZE; if (p_desc_n + DESC58_LTO_SIZE - p_desc > desc_get_length(p_desc) + DESC58_HEADER_SIZE) return NULL; return p_desc_n; } static inline const uint8_t *desc58n_get_country_code(const uint8_t *p_desc_n) { return desc0an_get_code(p_desc_n); } static inline void desc58n_set_country_code(uint8_t *p_desc_n, const uint8_t p_code[3]) { desc0an_set_code(p_desc_n, p_code); } static inline uint8_t desc58n_get_country_region_id(const uint8_t *p_desc_n) { return (p_desc_n[3] & 0xfc) >> 2; } static inline void desc58n_set_country_region_id(uint8_t *p_desc_n, uint8_t i_region_id) { p_desc_n[3] = (i_region_id << 2) | 0x02 | (p_desc_n[3] & 0x01); } static inline uint8_t desc58n_get_lto_polarity(const uint8_t *p_desc_n) { return p_desc_n[3] & 0x01; } static inline void desc58n_set_lto_polarity(uint8_t *p_desc_n, uint8_t i_lto_polarity) { p_desc_n[3] = i_lto_polarity ? (p_desc_n[3] | 0x01) : (p_desc_n[3] &~ 0x01); } static inline uint16_t desc58n_get_lt_offset(const uint8_t *p_desc_n) { return (p_desc_n[4] << 8) | p_desc_n[5]; } static inline void desc58n_set_lt_offset(uint8_t *p_desc_n, uint16_t i_lt_offset) { p_desc_n[4] = i_lt_offset >> 8; p_desc_n[5] = i_lt_offset & 0xff; } static inline uint64_t desc58n_get_time_of_change(const uint8_t *p_desc_n) { return (uint64_t)(((uint64_t)p_desc_n[6] << 32) | ((uint64_t)p_desc_n[7] << 24) | ((uint64_t)p_desc_n[8] << 16) | ((uint64_t)p_desc_n[9] << 8) | p_desc_n[10]); } static inline void desc58n_set_time_of_change(uint8_t *p_desc_n, uint64_t i_time_of_change) { p_desc_n[6] = (i_time_of_change >> 32) & 0xff; p_desc_n[7] = (i_time_of_change >> 24) & 0xff; p_desc_n[8] = (i_time_of_change >> 16) & 0xff; p_desc_n[9] = (i_time_of_change >> 8) & 0xff; p_desc_n[10] = i_time_of_change & 0xff; } static inline uint16_t desc58n_get_next_offset(const uint8_t *p_desc_n) { return (p_desc_n[11] << 8) | p_desc_n[12]; } static inline void desc58n_set_next_offset(uint8_t *p_desc_n, uint16_t i_next_offset) { p_desc_n[11] = i_next_offset >> 8; p_desc_n[12] = i_next_offset & 0xff; } static inline bool desc58_validate(const uint8_t *p_desc) { return !(desc_get_length(p_desc) % DESC58_LTO_SIZE); } static inline void desc58_print(uint8_t *p_desc, f_print pf_print, void *opaque, print_type_t i_print_type) { uint8_t j = 0; uint8_t *p_desc_n; while ((p_desc_n = desc58_get_lto(p_desc, j++)) != NULL) { char txt_time_of_change[24]; time_t ts_time_of_change; ts_time_of_change = dvb_time_format_UTC(desc58n_get_time_of_change(p_desc_n), NULL, txt_time_of_change); switch (i_print_type) { case PRINT_XML: pf_print(opaque, "", (const char *)desc58n_get_country_code(p_desc_n), desc58n_get_country_region_id(p_desc_n), desc58n_get_lto_polarity(p_desc_n), desc58n_get_lt_offset(p_desc_n), ts_time_of_change, txt_time_of_change, desc58n_get_next_offset(p_desc_n) ); break; default: pf_print(opaque, " - desc 58 local_time_offset country_code=%3.3s country_region_id=%u" " lto_polarity=%u lto_offset=%04x time_of_change=%ld" " time_of_change_dec=\"%s\" next_time_offset=%04x", (const char *)desc58n_get_country_code(p_desc_n), desc58n_get_country_region_id(p_desc_n), desc58n_get_lto_polarity(p_desc_n), desc58n_get_lt_offset(p_desc_n), ts_time_of_change, txt_time_of_change, desc58n_get_next_offset(p_desc_n) ); } } } #ifdef __cplusplus } #endif #endif