/***************************************************************************** * desc_6e.h: ETSI EN 300 468 Descriptor 0x6e: Announcement support 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_6E_H__ #define __BITSTREAM_DVB_DESC_6E_H__ #include #include #ifdef __cplusplus extern "C" { #endif /***************************************************************************** * Descriptor 0x6e: Announcement support descriptor *****************************************************************************/ #define DESC6E_HEADER_SIZE (DESC_HEADER_SIZE + 2) #define DESC6E_DATA_SIZE 1 #define DESC6E_EXT_DATA_SIZE 7 static inline void desc6e_init(uint8_t *p_desc) { desc_set_tag(p_desc, 0x6e); desc_set_length(p_desc, DESC6E_HEADER_SIZE - DESC_HEADER_SIZE); p_desc[2] = 0xff; } static inline uint16_t desc6e_get_announcement_support_indicator(const uint8_t *p_desc) { return (p_desc[2] << 8) | p_desc[3]; } static inline void desc6e_set_announcement_support_indicator(uint8_t *p_desc, uint16_t i_announcement_support_indicator) { p_desc[2] = (i_announcement_support_indicator >> 8) & 0xff; p_desc[3] = i_announcement_support_indicator & 0xff; } #define __DEFINE_FLAG(FLAGNAME, bit) \ static inline bool desc6e_get_##FLAGNAME##_flag(const uint8_t *p_desc) \ { \ return (p_desc[3] & bit) == bit; \ } \ \ static inline void desc6e_set_##FLAGNAME##_flag(uint8_t *p_desc, bool b_##FLAGNAME) \ { \ p_desc[3] = b_##FLAGNAME ? (p_desc[3] | bit) : (p_desc[3] &~ bit); \ } __DEFINE_FLAG (emergency_alarm , 0x01) __DEFINE_FLAG (road_traffic_flash , 0x02) __DEFINE_FLAG (public_transport_flash, 0x04) __DEFINE_FLAG (warning_message , 0x08) __DEFINE_FLAG (news_flash , 0x10) __DEFINE_FLAG (weather_flash , 0x20) __DEFINE_FLAG (event_announcement , 0x40) __DEFINE_FLAG (personal_call , 0x80) #undef __DEFINE_FLAG static inline uint8_t desc6en_get_announcement_type(const uint8_t *p_desc_n) { return (p_desc_n[0] & 0xf0) >> 4; } static inline void desc6en_set_announcement_type(uint8_t *p_desc_n, uint8_t i_announcement_type) { p_desc_n[0] = ((i_announcement_type & 0x0f) << 4) | 0x08 | (p_desc_n[0] & 0x07); } static inline const char *desc6e_get_announcement_type_txt(uint8_t i_announcement_type) { return i_announcement_type == 0x00 ? "Emergency alarm" : i_announcement_type == 0x01 ? "Road Traffic flash" : i_announcement_type == 0x02 ? "Public Transport flash" : i_announcement_type == 0x03 ? "Warning message" : i_announcement_type == 0x04 ? "News flash" : i_announcement_type == 0x05 ? "Weather flash" : i_announcement_type == 0x06 ? "Event announcement" : i_announcement_type == 0x07 ? "Personal call" : "Reserved"; } static inline uint8_t desc6en_get_reference_type(const uint8_t *p_desc_n) { return p_desc_n[0] & 0x07; } static inline void desc6en_set_reference_type(uint8_t *p_desc_n, uint8_t i_reference_type) { p_desc_n[0] = (p_desc_n[0] & 0xf0) | 0x08 | (i_reference_type & 0x07); } static inline uint16_t desc6en_get_onid(const uint8_t *p_desc_n) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return 0; return (p_desc_n[1] << 8) | p_desc_n[2]; } static inline void desc6en_set_onid(uint8_t *p_desc_n, uint16_t i_onid) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return; p_desc_n[1] = (i_onid >> 8) & 0xff; p_desc_n[2] = i_onid & 0xff; } static inline uint16_t desc6en_get_tsid(const uint8_t *p_desc_n) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return 0; return (p_desc_n[3] << 8) | p_desc_n[4]; } static inline void desc6en_set_tsid(uint8_t *p_desc_n, uint16_t i_tsid) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return; p_desc_n[3] = (i_tsid >> 8) & 0xff; p_desc_n[4] = i_tsid & 0xff; } static inline uint16_t desc6en_get_service_id(const uint8_t *p_desc_n) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return 0; return (p_desc_n[5] << 8) | p_desc_n[6]; } static inline void desc6en_set_service_id(uint8_t *p_desc_n, uint16_t i_service_id) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return; p_desc_n[5] = (i_service_id >> 8) & 0xff; p_desc_n[6] = i_service_id & 0xff; } static inline uint8_t desc6en_get_component_tag(const uint8_t *p_desc_n) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return 0; return p_desc_n[7]; } static inline void desc6en_set_component_tag(uint8_t *p_desc_n, uint8_t i_component_tag) { uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)) return; p_desc_n[7] = i_component_tag; } static inline uint8_t *desc6e_get_announcement(uint8_t *p_desc, uint8_t n) { uint8_t *p_desc_n = p_desc + DESC6E_HEADER_SIZE; int i_loop_len = desc_get_length(p_desc) - (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE); if (i_loop_len <= 0) return NULL; while (n) { uint8_t i_desc6e_data_size = DESC6E_DATA_SIZE; uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03) i_desc6e_data_size += DESC6E_EXT_DATA_SIZE; p_desc_n += i_desc6e_data_size; i_loop_len -= i_desc6e_data_size; if (i_loop_len <= 0) return NULL; n--; } return p_desc_n; } static inline bool desc6e_validate(const uint8_t *p_desc) { const uint8_t *p_desc_n = p_desc + DESC6E_HEADER_SIZE; int i_desc_size = desc_get_length(p_desc); while (i_desc_size > (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE)) { uint8_t i_desc6e_data_size = DESC6E_DATA_SIZE; uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n); if (i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03) i_desc6e_data_size += DESC6E_EXT_DATA_SIZE; i_desc_size -= i_desc6e_data_size; p_desc_n += i_desc6e_data_size; } return i_desc_size == (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE); } static inline void desc6e_print(uint8_t *p_desc, f_print pf_print, void *opaque, print_type_t i_print_type) { uint8_t n = 0; uint8_t *p_desc_n; switch (i_print_type) { case PRINT_XML: pf_print(opaque, "", desc6e_get_announcement_support_indicator(p_desc), desc6e_get_emergency_alarm_flag(p_desc), desc6e_get_road_traffic_flash_flag(p_desc), desc6e_get_public_transport_flash_flag(p_desc), desc6e_get_warning_message_flag(p_desc), desc6e_get_news_flash_flag(p_desc), desc6e_get_weather_flash_flag(p_desc), desc6e_get_event_announcement_flag(p_desc), desc6e_get_personal_call_flag(p_desc) ); break; default: pf_print(opaque, " - desc 6e announcement_support announcement_support_indicator=0x%04x" " emergency_alarm_flag=%u" " road_traffic_flash_flag=%u" " public_transport_flash_flag=%u" " warning_message_flag=%u" " news_flash_flag=%u" " weather_flash_flag=%u" " event_announcement_flag=%u" " personal_call_flag=%u", desc6e_get_announcement_support_indicator(p_desc), desc6e_get_emergency_alarm_flag(p_desc), desc6e_get_road_traffic_flash_flag(p_desc), desc6e_get_public_transport_flash_flag(p_desc), desc6e_get_warning_message_flag(p_desc), desc6e_get_news_flash_flag(p_desc), desc6e_get_weather_flash_flag(p_desc), desc6e_get_event_announcement_flag(p_desc), desc6e_get_personal_call_flag(p_desc) ); } while ((p_desc_n = desc6e_get_announcement(p_desc, n++)) != NULL) { uint8_t i_announcement_type = desc6en_get_announcement_type(p_desc_n); uint8_t i_reference_type = desc6en_get_reference_type(p_desc_n); bool b_extra_data = (i_reference_type == 0x01 || i_reference_type == 0x02 || i_reference_type == 0x03); switch (i_print_type) { case PRINT_XML: if (!b_extra_data) pf_print(opaque, "", i_announcement_type, desc6e_get_announcement_type_txt(i_announcement_type), i_reference_type ); else pf_print(opaque, "", i_announcement_type, desc6e_get_announcement_type_txt(i_announcement_type), i_reference_type, desc6en_get_onid(p_desc_n), desc6en_get_tsid(p_desc_n), desc6en_get_service_id(p_desc_n), desc6en_get_component_tag(p_desc_n) ); break; default: if (!b_extra_data) pf_print(opaque, " - announcement type=%u type_txt=\"%s\" reference_type=%u", i_announcement_type, desc6e_get_announcement_type_txt(i_announcement_type), i_reference_type ); else pf_print(opaque, " - announcement type=%u type_txt=\"%s\" reference_type=%u" " onid=%u tsid=%u service_id=%u component_tag=%u", i_announcement_type, desc6e_get_announcement_type_txt(i_announcement_type), i_reference_type, desc6en_get_onid(p_desc_n), desc6en_get_tsid(p_desc_n), desc6en_get_service_id(p_desc_n), desc6en_get_component_tag(p_desc_n) ); } } if (i_print_type == PRINT_XML) pf_print(opaque, ""); } #ifdef __cplusplus } #endif #endif