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120 lines
4.1 KiB
120 lines
4.1 KiB
/*****************************************************************************
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* desc_55.h: ETSI EN 300 468 Descriptor 0x55: Parental rating 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_55_H__
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#define __BITSTREAM_DVB_DESC_55_H__
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#include <bitstream/common.h>
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#include <bitstream/mpeg/psi/descriptors.h>
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#include <bitstream/mpeg/psi/desc_0a.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 0x55: Parental rating descriptor
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*****************************************************************************/
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#define DESC55_HEADER_SIZE DESC_HEADER_SIZE
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#define DESC55_RATING_SIZE 4
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static inline void desc55_init(uint8_t *p_desc)
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{
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desc_set_tag(p_desc, 0x55);
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}
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#define desc55n_get_country_code desc0an_get_code
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#define desc55n_set_country_code desc0an_set_code
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static inline uint8_t *desc55_get_rating(uint8_t *p_desc, uint8_t n)
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{
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uint8_t *p_desc_n = p_desc + DESC55_HEADER_SIZE + n * DESC55_RATING_SIZE;
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if (p_desc_n + DESC55_RATING_SIZE - p_desc
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> desc_get_length(p_desc) + DESC55_HEADER_SIZE)
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return NULL;
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return p_desc_n;
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}
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static inline uint8_t desc55n_get_rating(uint8_t *p_desc_n)
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{
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return p_desc_n[3];
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}
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static inline void desc55n_set_rating(uint8_t *p_desc_n, uint8_t i_rating)
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{
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p_desc_n[3] = i_rating;
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}
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static inline bool desc55_validate(const uint8_t *p_desc)
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{
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return !(desc_get_length(p_desc) % DESC55_RATING_SIZE);
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}
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static inline void desc55_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 j = 0;
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uint8_t *p_desc_n;
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while ((p_desc_n = desc55_get_rating(p_desc, j++)) != NULL) {
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char rating_txt[16];
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uint8_t rating = desc55n_get_rating(p_desc_n);
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if (rating == 0)
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sprintf(rating_txt, "%s", "undefined");
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else if (rating >= 0x01 && rating <= 0x0f)
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sprintf(rating_txt, "min %d years", rating + 3);
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else
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sprintf(rating_txt, "%s", "unknown");
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switch (i_print_type) {
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case PRINT_XML:
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pf_print(opaque, "<PARENTAL_RATING_DESC country_code=\"%3.3s\" rating=\"%u\" rating_txt=\"%s\"/>",
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(char *)desc55n_get_country_code(p_desc_n),
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desc55n_get_rating(p_desc_n),
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rating_txt
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);
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break;
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default:
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pf_print(opaque," - desc 55 parental_rating country_code=%3.3s rating=%u rating_txt=\"%s\"",
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(char *)desc55n_get_country_code(p_desc_n),
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desc55n_get_rating(p_desc_n),
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rating_txt
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);
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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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