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154 lines
5.0 KiB
154 lines
5.0 KiB
/*****************************************************************************
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* desc_69.h: ETSI EN 300 468 Descriptor 0x69: PDC 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_69_H__
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#define __BITSTREAM_DVB_DESC_69_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 0x69: PDC descriptor
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*****************************************************************************/
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#define DESC69_HEADER_SIZE (DESC_HEADER_SIZE + 3)
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static inline void desc69_init(uint8_t *p_desc)
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{
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desc_set_tag(p_desc, 0x69);
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desc_set_length(p_desc, DESC69_HEADER_SIZE - DESC_HEADER_SIZE);
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p_desc[2] = 0xf0;
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}
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static inline uint32_t desc69_get_pil(const uint8_t *p_desc)
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{
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return ((p_desc[2] & 0x0f) << 16) | (p_desc[3] << 8) | p_desc[4];
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}
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static inline void desc69_set_pil(uint8_t *p_desc, uint32_t i_pil)
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{
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p_desc[2] = ((i_pil >> 16) & 0x0f) | 0xf0;
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p_desc[3] = (i_pil >> 8) & 0xff;
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p_desc[4] = i_pil & 0x0f;
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}
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static inline uint8_t desc69_get_day(const uint8_t *p_desc)
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{
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uint8_t i_day = ((p_desc[2] & 0x0f) << 1) | ((p_desc[3] & 0x80) >> 7); // rrrr1111 1xxxxxxx
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return i_day + 1;
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}
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static inline void desc69_set_day(uint8_t *p_desc, uint8_t i_day)
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{
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i_day &= 0x1f; // 5 bits
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p_desc[2] = 0xf0 | ((i_day >> 1) & 0x0f); // rrrr1111
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p_desc[3] = ((i_day & 0x01) << 7) | (p_desc[3] & 0x7f); // 1xxxxxxx
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}
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static inline uint8_t desc69_get_month(const uint8_t *p_desc)
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{
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uint8_t i_month = ((p_desc[3] & 0x78) >> 3); // x1111xxx
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return i_month;
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}
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static inline void desc69_set_month(uint8_t *p_desc, uint8_t i_month)
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{
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i_month &= 0x0f; // 4 bits
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p_desc[3] = (p_desc[3] & 0x87) | (i_month << 3); // x1111xxx
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}
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static inline uint8_t desc69_get_hour(const uint8_t *p_desc)
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{
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uint8_t i_hour = ((p_desc[3] & 0x07) << 2) | ((p_desc[4] & 0xc0) >> 6); // xxxxx111 11xxxxxx
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return i_hour;
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}
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static inline void desc69_set_hour(uint8_t *p_desc, uint8_t i_hour)
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{
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i_hour &= 0x1f; // 5 bits
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p_desc[3] = (p_desc[3] & 0xf8) | ((i_hour >> 3) & 0x07); // xxxxx111
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p_desc[4] = ((i_hour & 0x03) << 6) | (p_desc[4] & 0x3f); // 11xxxxxx
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}
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static inline uint8_t desc69_get_minute(const uint8_t *p_desc)
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{
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uint8_t i_min = p_desc[4] & 0x3f; // xx111111
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return i_min;
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}
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static inline void desc69_set_minute(uint8_t *p_desc, uint8_t i_minute)
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{
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i_minute &= 0x3f;
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p_desc[4] = (p_desc[4] & 0xc0) | i_minute;
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}
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static inline bool desc69_validate(const uint8_t *p_desc)
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{
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return desc_get_length(p_desc) >= (DESC69_HEADER_SIZE - DESC_HEADER_SIZE);
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}
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static inline void desc69_print(const 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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switch (i_print_type) {
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case PRINT_XML:
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pf_print(opaque,
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"<PDC_DESC pil=\"0x%x\" day=\"%u\" month=\"%u\" hour=\"%u\" min=\"%u\"/>",
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desc69_get_pil(p_desc),
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desc69_get_day(p_desc),
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desc69_get_month(p_desc),
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desc69_get_hour(p_desc),
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desc69_get_minute(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 69 pdc pil=\"0x%x\" day=\"%u\" month=\"%u\" hour=\"%u\" min=\"%u\"",
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desc69_get_pil(p_desc),
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desc69_get_day(p_desc),
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desc69_get_month(p_desc),
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desc69_get_hour(p_desc),
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desc69_get_minute(p_desc)
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);
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}
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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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