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339 lines
13 KiB
339 lines
13 KiB
/*****************************************************************************
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* desc_6e.h: ETSI EN 300 468 Descriptor 0x6e: Announcement support descriptor
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*****************************************************************************
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* Copyright (C) 2011 Unix Solutions Ltd.
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*
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* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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/*
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* Normative references:
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* - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
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*/
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#ifndef __BITSTREAM_DVB_DESC_6E_H__
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#define __BITSTREAM_DVB_DESC_6E_H__
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#include <bitstream/common.h>
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#include <bitstream/mpeg/psi/descriptors.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/*****************************************************************************
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* Descriptor 0x6e: Announcement support descriptor
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*****************************************************************************/
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#define DESC6E_HEADER_SIZE (DESC_HEADER_SIZE + 2)
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#define DESC6E_DATA_SIZE 1
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#define DESC6E_EXT_DATA_SIZE 7
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static inline void desc6e_init(uint8_t *p_desc)
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{
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desc_set_tag(p_desc, 0x6e);
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desc_set_length(p_desc, DESC6E_HEADER_SIZE - DESC_HEADER_SIZE);
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p_desc[2] = 0xff;
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}
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static inline uint16_t desc6e_get_announcement_support_indicator(const uint8_t *p_desc)
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{
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return (p_desc[2] << 8) | p_desc[3];
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}
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static inline void desc6e_set_announcement_support_indicator(uint8_t *p_desc, uint16_t i_announcement_support_indicator)
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{
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p_desc[2] = (i_announcement_support_indicator >> 8) & 0xff;
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p_desc[3] = i_announcement_support_indicator & 0xff;
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}
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#define __DEFINE_FLAG(FLAGNAME, bit) \
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static inline bool desc6e_get_##FLAGNAME##_flag(const uint8_t *p_desc) \
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{ \
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return (p_desc[3] & bit) == bit; \
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} \
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\
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static inline void desc6e_set_##FLAGNAME##_flag(uint8_t *p_desc, bool b_##FLAGNAME) \
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{ \
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p_desc[3] = b_##FLAGNAME ? (p_desc[3] | bit) : (p_desc[3] &~ bit); \
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}
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__DEFINE_FLAG (emergency_alarm , 0x01)
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__DEFINE_FLAG (road_traffic_flash , 0x02)
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__DEFINE_FLAG (public_transport_flash, 0x04)
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__DEFINE_FLAG (warning_message , 0x08)
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__DEFINE_FLAG (news_flash , 0x10)
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__DEFINE_FLAG (weather_flash , 0x20)
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__DEFINE_FLAG (event_announcement , 0x40)
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__DEFINE_FLAG (personal_call , 0x80)
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#undef __DEFINE_FLAG
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static inline uint8_t desc6en_get_announcement_type(const uint8_t *p_desc_n)
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{
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return (p_desc_n[0] & 0xf0) >> 4;
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}
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static inline void desc6en_set_announcement_type(uint8_t *p_desc_n, uint8_t i_announcement_type)
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{
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p_desc_n[0] = ((i_announcement_type & 0x0f) << 4) | 0x08 | (p_desc_n[0] & 0x07);
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}
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static inline const char *desc6e_get_announcement_type_txt(uint8_t i_announcement_type)
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{
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return i_announcement_type == 0x00 ? "Emergency alarm" :
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i_announcement_type == 0x01 ? "Road Traffic flash" :
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i_announcement_type == 0x02 ? "Public Transport flash" :
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i_announcement_type == 0x03 ? "Warning message" :
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i_announcement_type == 0x04 ? "News flash" :
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i_announcement_type == 0x05 ? "Weather flash" :
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i_announcement_type == 0x06 ? "Event announcement" :
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i_announcement_type == 0x07 ? "Personal call" : "Reserved";
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}
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static inline uint8_t desc6en_get_reference_type(const uint8_t *p_desc_n)
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{
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return p_desc_n[0] & 0x07;
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}
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static inline void desc6en_set_reference_type(uint8_t *p_desc_n, uint8_t i_reference_type)
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{
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p_desc_n[0] = (p_desc_n[0] & 0xf0) | 0x08 | (i_reference_type & 0x07);
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}
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static inline uint16_t desc6en_get_onid(const uint8_t *p_desc_n)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return 0;
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return (p_desc_n[1] << 8) | p_desc_n[2];
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}
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static inline void desc6en_set_onid(uint8_t *p_desc_n, uint16_t i_onid)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return;
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p_desc_n[1] = (i_onid >> 8) & 0xff;
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p_desc_n[2] = i_onid & 0xff;
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}
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static inline uint16_t desc6en_get_tsid(const uint8_t *p_desc_n)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return 0;
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return (p_desc_n[3] << 8) | p_desc_n[4];
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}
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static inline void desc6en_set_tsid(uint8_t *p_desc_n, uint16_t i_tsid)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return;
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p_desc_n[3] = (i_tsid >> 8) & 0xff;
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p_desc_n[4] = i_tsid & 0xff;
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}
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static inline uint16_t desc6en_get_service_id(const uint8_t *p_desc_n)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return 0;
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return (p_desc_n[5] << 8) | p_desc_n[6];
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}
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static inline void desc6en_set_service_id(uint8_t *p_desc_n, uint16_t i_service_id)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return;
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p_desc_n[5] = (i_service_id >> 8) & 0xff;
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p_desc_n[6] = i_service_id & 0xff;
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}
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static inline uint8_t desc6en_get_component_tag(const uint8_t *p_desc_n)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return 0;
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return p_desc_n[7];
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}
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static inline void desc6en_set_component_tag(uint8_t *p_desc_n, uint8_t i_component_tag)
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{
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (!(i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03))
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return;
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p_desc_n[7] = i_component_tag;
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}
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static inline uint8_t *desc6e_get_announcement(uint8_t *p_desc, uint8_t n)
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{
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uint8_t *p_desc_n = p_desc + DESC6E_HEADER_SIZE;
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int i_loop_len = desc_get_length(p_desc) - (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE);
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if (i_loop_len <= 0)
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return NULL;
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while (n) {
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uint8_t i_desc6e_data_size = DESC6E_DATA_SIZE;
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)
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i_desc6e_data_size += DESC6E_EXT_DATA_SIZE;
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p_desc_n += i_desc6e_data_size;
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i_loop_len -= i_desc6e_data_size;
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if (i_loop_len <= 0)
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return NULL;
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n--;
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}
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return p_desc_n;
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}
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static inline bool desc6e_validate(const uint8_t *p_desc)
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{
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const uint8_t *p_desc_n = p_desc + DESC6E_HEADER_SIZE;
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int i_desc_size = desc_get_length(p_desc);
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while (i_desc_size > (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE)) {
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uint8_t i_desc6e_data_size = DESC6E_DATA_SIZE;
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uint8_t i_ref_type = desc6en_get_reference_type(p_desc_n);
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if (i_ref_type == 0x01 || i_ref_type == 0x02 || i_ref_type == 0x03)
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i_desc6e_data_size += DESC6E_EXT_DATA_SIZE;
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i_desc_size -= i_desc6e_data_size;
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p_desc_n += i_desc6e_data_size;
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}
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return i_desc_size == (DESC6E_HEADER_SIZE - DESC_HEADER_SIZE);
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}
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static inline void desc6e_print(uint8_t *p_desc, f_print pf_print,
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void *opaque, print_type_t i_print_type)
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{
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uint8_t n = 0;
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uint8_t *p_desc_n;
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switch (i_print_type) {
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case PRINT_XML:
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pf_print(opaque,
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"<ANNOUNCEMENT_SUPPORT_DESC announcement_support_indicator=\"0x%04x\""
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" emergency_alarm_flag=\"%u\""
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" road_traffic_flash_flag=\"%u\""
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" public_transport_flash_flag=\"%u\""
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" warning_message_flag=\"%u\""
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" news_flash_flag=\"%u\""
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" weather_flash_flag=\"%u\""
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" event_announcement_flag=\"%u\""
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" personal_call_flag=\"%u\">",
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desc6e_get_announcement_support_indicator(p_desc),
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desc6e_get_emergency_alarm_flag(p_desc),
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desc6e_get_road_traffic_flash_flag(p_desc),
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desc6e_get_public_transport_flash_flag(p_desc),
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desc6e_get_warning_message_flag(p_desc),
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desc6e_get_news_flash_flag(p_desc),
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desc6e_get_weather_flash_flag(p_desc),
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desc6e_get_event_announcement_flag(p_desc),
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desc6e_get_personal_call_flag(p_desc)
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);
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break;
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default:
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pf_print(opaque,
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" - desc 6e announcement_support announcement_support_indicator=0x%04x"
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" emergency_alarm_flag=%u"
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" road_traffic_flash_flag=%u"
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" public_transport_flash_flag=%u"
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" warning_message_flag=%u"
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" news_flash_flag=%u"
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" weather_flash_flag=%u"
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" event_announcement_flag=%u"
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" personal_call_flag=%u",
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desc6e_get_announcement_support_indicator(p_desc),
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desc6e_get_emergency_alarm_flag(p_desc),
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desc6e_get_road_traffic_flash_flag(p_desc),
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desc6e_get_public_transport_flash_flag(p_desc),
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desc6e_get_warning_message_flag(p_desc),
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desc6e_get_news_flash_flag(p_desc),
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desc6e_get_weather_flash_flag(p_desc),
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desc6e_get_event_announcement_flag(p_desc),
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desc6e_get_personal_call_flag(p_desc)
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);
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}
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while ((p_desc_n = desc6e_get_announcement(p_desc, n++)) != NULL) {
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uint8_t i_announcement_type = desc6en_get_announcement_type(p_desc_n);
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uint8_t i_reference_type = desc6en_get_reference_type(p_desc_n);
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bool b_extra_data = (i_reference_type == 0x01 || i_reference_type == 0x02 || i_reference_type == 0x03);
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switch (i_print_type) {
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case PRINT_XML:
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if (!b_extra_data)
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pf_print(opaque,
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"<ANNOUNCEMENT type=\"%u\" type_txt=\"%s\" reference_type=\"%u\"/>",
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i_announcement_type,
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desc6e_get_announcement_type_txt(i_announcement_type),
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i_reference_type
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);
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else
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pf_print(opaque,
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"<ANNOUNCEMENT type=\"%u\" type_txt=\"%s\" reference_type=\"%u\""
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" onid=\"%u\" tsid=\"%u\" service_id=\"%u\" component_tag=\"%u\"/>",
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i_announcement_type,
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desc6e_get_announcement_type_txt(i_announcement_type),
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i_reference_type,
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desc6en_get_onid(p_desc_n),
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desc6en_get_tsid(p_desc_n),
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desc6en_get_service_id(p_desc_n),
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desc6en_get_component_tag(p_desc_n)
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);
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break;
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default:
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if (!b_extra_data)
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pf_print(opaque,
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" - announcement type=%u type_txt=\"%s\" reference_type=%u",
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i_announcement_type,
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desc6e_get_announcement_type_txt(i_announcement_type),
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i_reference_type
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);
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else
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pf_print(opaque,
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" - announcement type=%u type_txt=\"%s\" reference_type=%u"
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" onid=%u tsid=%u service_id=%u component_tag=%u",
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i_announcement_type,
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desc6e_get_announcement_type_txt(i_announcement_type),
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i_reference_type,
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desc6en_get_onid(p_desc_n),
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desc6en_get_tsid(p_desc_n),
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desc6en_get_service_id(p_desc_n),
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desc6en_get_component_tag(p_desc_n)
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);
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}
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}
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if (i_print_type == PRINT_XML)
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pf_print(opaque, "</ANNOUNCEMENT_SUPPORT_DESC>");
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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