diff --git a/dvb/si/desc_58.h b/dvb/si/desc_58.h new file mode 100644 index 0000000..4cde02a --- /dev/null +++ b/dvb/si/desc_58.h @@ -0,0 +1,186 @@ +/***************************************************************************** + * 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 diff --git a/dvb/si/descs_list.h b/dvb/si/descs_list.h index bdb5afb..69b3cf8 100644 --- a/dvb/si/descs_list.h +++ b/dvb/si/descs_list.h @@ -48,6 +48,7 @@ #include #include #include +#include #include #include #include diff --git a/mpeg/psi/descs_print.h b/mpeg/psi/descs_print.h index 301e798..1cae881 100644 --- a/mpeg/psi/descs_print.h +++ b/mpeg/psi/descs_print.h @@ -131,6 +131,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length, CASE_DESC(54) CASE_DESC(55) CASE_DESC(56) + CASE_DESC(58) CASE_DESC(59) CASE_DESC(5a) CASE_DESC(6a)