Commit f4c9160e authored by Georgi Chorbadzhiyski's avatar Georgi Chorbadzhiyski

dvb/si: Add support for descriptor 0x58 (Local time offset).

parent 745ec332
/*****************************************************************************
* desc_58.h: ETSI EN 300 468 Descriptor 0x58: Local time offset descriptor
*****************************************************************************
* Copyright (C) 2011 Unix Solutions Ltd.
*
* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
*
* 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 <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#include <bitstream/mpeg/psi/desc_0a.h>
#include <bitstream/dvb/si/datetime.h>
#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,
"<LOCAL_TIME_OFFSET_DESC country_code=\"%3.3s\" country_region_id=\"%u\""
" lto_polarity=\"%u\" lt_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)
);
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
...@@ -48,6 +48,7 @@ ...@@ -48,6 +48,7 @@
#include <bitstream/dvb/si/desc_54.h> #include <bitstream/dvb/si/desc_54.h>
#include <bitstream/dvb/si/desc_55.h> #include <bitstream/dvb/si/desc_55.h>
#include <bitstream/dvb/si/desc_56.h> #include <bitstream/dvb/si/desc_56.h>
#include <bitstream/dvb/si/desc_58.h>
#include <bitstream/dvb/si/desc_59.h> #include <bitstream/dvb/si/desc_59.h>
#include <bitstream/dvb/si/desc_5a.h> #include <bitstream/dvb/si/desc_5a.h>
#include <bitstream/dvb/si/desc_5f.h> #include <bitstream/dvb/si/desc_5f.h>
......
...@@ -131,6 +131,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length, ...@@ -131,6 +131,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
CASE_DESC(54) CASE_DESC(54)
CASE_DESC(55) CASE_DESC(55)
CASE_DESC(56) CASE_DESC(56)
CASE_DESC(58)
CASE_DESC(59) CASE_DESC(59)
CASE_DESC(5a) CASE_DESC(5a)
CASE_DESC(6a) CASE_DESC(6a)
......
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