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119 lines
4.2 KiB
119 lines
4.2 KiB
/*****************************************************************************
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* desc_44.h: ETSI EN 300 468 Descriptor 0x44: Cable delivery system
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*****************************************************************************
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* Copyright (C) 2009-2010 VideoLAN
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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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_44_H__
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#define __BITSTREAM_DVB_DESC_44_H__
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#include <inttypes.h> /* PRIu64 */
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#include <bitstream/common.h>
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#include <bitstream/mpeg/psi/descriptors.h>
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#include <bitstream/dvb/si/desc_43.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 0x44: Cable delivery system descriptor
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*****************************************************************************/
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#define DESC44_HEADER_SIZE (DESC_HEADER_SIZE + 11)
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static inline uint64_t desc44_get_frequency(const uint8_t *p_desc)
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{
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return (uint64_t)dvb_bcd_get(p_desc + 2, 32) * 100; /* Hz */
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}
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static inline uint8_t desc44_get_fecouter(const uint8_t *p_desc)
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{
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return p_desc[7] & 0xf;
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}
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static inline uint8_t desc44_get_modulation(const uint8_t *p_desc)
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{
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return p_desc[8];
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}
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#define desc44_get_symbolrate desc43_get_symbolrate
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#define desc44_get_fecinner desc43_get_fecinner
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static inline bool desc44_validate(const uint8_t *p_desc)
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{
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return desc_get_length(p_desc) >= DESC44_HEADER_SIZE - DESC_HEADER_SIZE;
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}
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static inline void desc44_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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uint8_t i_fecouter = desc44_get_fecouter(p_desc);
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const char *psz_fecouter = "reserved";
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uint8_t i_modulation = desc44_get_modulation(p_desc);
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const char *psz_modulation = "reserved";
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switch (i_fecouter) {
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case 0x0: psz_fecouter = "undefined"; break;
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case 0x1: psz_fecouter = "none"; break;
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case 0x2: psz_fecouter = "rs(204/188)"; break;
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}
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switch (i_modulation) {
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case 0x0: psz_modulation = "undefined"; break;
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case 0x1: psz_modulation = "16-qam"; break;
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case 0x2: psz_modulation = "32-qam"; break;
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case 0x3: psz_modulation = "64-qam"; break;
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case 0x4: psz_modulation = "128-qam"; break;
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case 0x5: psz_modulation = "256-qam"; break;
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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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"<CABLE_DESC frequency=\"%"PRIu64"\" fecouter=\"0x%s\" modulation=\"0x%s\" symbolrate=\"%u\" fecinner=\"%s\"/>",
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desc44_get_frequency(p_desc), psz_fecouter, psz_modulation,
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desc44_get_symbolrate(p_desc),
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dvb_delivery_get_fec(desc43_get_fecinner(p_desc)));
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break;
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default:
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pf_print(opaque,
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" - desc 44 dvb-c frequency=%"PRIu64" Hz fecouter=0x%s modulation=0x%s symbolrate=%u fecinner=%s",
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desc44_get_frequency(p_desc), psz_fecouter, psz_modulation,
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desc44_get_symbolrate(p_desc),
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dvb_delivery_get_fec(desc43_get_fecinner(p_desc)));
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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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