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106 lines
4.0 KiB
106 lines
4.0 KiB
/*****************************************************************************
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* desc_65.h: ETSI EN 300 468 Descriptor 0x65: Scrambling 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_65_H__
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#define __BITSTREAM_DVB_DESC_65_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 0x65: Scrambling descriptor
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*****************************************************************************/
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#define DESC65_HEADER_SIZE (DESC_HEADER_SIZE + 1)
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static inline void desc65_init(uint8_t *p_desc)
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{
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desc_set_tag(p_desc, 0x65);
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desc_set_length(p_desc, DESC65_HEADER_SIZE - DESC_HEADER_SIZE);
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}
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static inline uint8_t desc65_get_scrambling_mode(const uint8_t *p_desc)
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{
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return p_desc[2];
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}
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static inline void desc65_set_scrambling_mode(uint8_t *p_desc, uint8_t i_scrambling_mode)
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{
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p_desc[2] = i_scrambling_mode;
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}
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static inline const char *desc65_get_scrambling_mode_txt(uint8_t i_mode)
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{
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return i_mode == 0x00 ? "Reserved" :
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i_mode == 0x01 ? "DVB-CSA1" :
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i_mode == 0x02 ? "DVB-CSA2" :
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i_mode == 0x03 ? "DVB-CSA3 in standart mode" :
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i_mode == 0x04 ? "DVB-CSA3 in minimally enhanced mode" :
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i_mode == 0x05 ? "DVB-CSA3 in fully enhanced mode" :
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i_mode == 0x10 ? "DVB-CISSA version 1" :
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i_mode >= 0x06 && i_mode <= 0x6f ? "Reserved" :
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i_mode >= 0x70 && i_mode <= 0x7f ? "ATIS defined" :
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i_mode >= 0x80 && i_mode <= 0xfe ? "User defined" : "Reserved";
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}
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static inline bool desc65_validate(const uint8_t *p_desc)
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{
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return desc_get_length(p_desc) >= DESC65_HEADER_SIZE - DESC_HEADER_SIZE;
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}
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static inline void desc65_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, "<SCRAMBLING_DESC scrambling_mode=\"0x%02x\" scrambling_mode_txt=\"%s\"/>",
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desc65_get_scrambling_mode(p_desc),
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desc65_get_scrambling_mode_txt(desc65_get_scrambling_mode(p_desc))
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);
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break;
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default:
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pf_print(opaque, " - desc 65 scrambling scrambling_mode=0x%02x scrambling_mode_txt=\"%s\"",
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desc65_get_scrambling_mode(p_desc),
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desc65_get_scrambling_mode_txt(desc65_get_scrambling_mode(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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