/***************************************************************************** * desc_43.h: ETSI EN 300 468 Descriptor 0x43: Satellite delivery system ***************************************************************************** * Copyright (C) 2009-2010 VideoLAN * * Authors: Christophe Massiot * Georgi Chorbadzhiyski * * 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_43_H__ #define __BITSTREAM_DVB_DESC_43_H__ #include #include #include #ifdef __cplusplus extern "C" { #endif /***************************************************************************** * Descriptor 0x43: Satellite delivery system descriptor *****************************************************************************/ #define DESC43_HEADER_SIZE (DESC_HEADER_SIZE + 11) static inline void desc43_init(uint8_t *p_desc) { desc_set_tag(p_desc, 0x43); desc_set_length(p_desc, DESC43_HEADER_SIZE - DESC_HEADER_SIZE); } static inline uint32_t desc43_get_frequency(const uint8_t *p_desc) { return dvb_bcd_get(p_desc + 2, 32) * 10; /* kHz */ } static inline void desc43_set_frequency_bcd(uint8_t *p_desc, uint32_t i_freq_bcd) { p_desc[2] = (i_freq_bcd >> 24) & 0xff; p_desc[3] = (i_freq_bcd >> 16) & 0xff; p_desc[4] = (i_freq_bcd >> 8) & 0xff; p_desc[5] = i_freq_bcd & 0xff; } static inline unsigned int desc43_get_position(const uint8_t *p_desc) { return dvb_bcd_get(p_desc + 6, 16); /* 10th degree */ } static inline void desc43_set_position_bcd(uint8_t *p_desc, uint16_t i_pos_bcd) { p_desc[6] = (i_pos_bcd >> 8) & 0xff; p_desc[7] = i_pos_bcd & 0xff; } static inline bool desc43_get_east(const uint8_t *p_desc) { return !!(p_desc[8] & 0x80); } static inline void desc43_set_east(uint8_t *p_desc, bool b_east) { p_desc[8] = b_east ? (p_desc[8] | 0x80) : (p_desc[8] &~ 0x80); // 1xxxxxxx } static inline uint8_t desc43_get_polarization(const uint8_t *p_desc) { return (p_desc[8] & 0x60) >> 5; } static inline void desc43_set_polarization(uint8_t *p_desc, uint8_t i_polarization) { p_desc[8] = ((i_polarization & 0x03) << 5) | (p_desc[8] &~ 0x60); // x11xxxxx } static inline uint8_t desc43_get_rolloff(const uint8_t *p_desc) { return (p_desc[8] & 0x18) >> 3; } static inline void desc43_set_rolloff(uint8_t *p_desc, uint8_t i_rolloff) { p_desc[8] = (p_desc[8] &~ 0x18) | (i_rolloff & 0x03 << 3); // xxx11xxx } static inline bool desc43_get_dvbs2(const uint8_t *p_desc) { return !!(p_desc[8] & 0x4); } static inline void desc43_set_dvbs2(uint8_t *p_desc, bool b_dvbs2) { p_desc[8] = b_dvbs2 ? (p_desc[8] | 0x04) : (p_desc[8] &~ 0x04); // xxxxx1xx } static inline uint8_t desc43_get_modulation(const uint8_t *p_desc) { return p_desc[8] & 0x3; } static inline void desc43_set_modulation(uint8_t *p_desc, uint8_t i_modulation) { p_desc[8] = (p_desc[8] &~ 0x03) | (i_modulation & 0x03); // xxxxxx11 } static inline unsigned int desc43_get_symbolrate(const uint8_t *p_desc) { return dvb_bcd_get(p_desc + 9, 28) * 100; /* sy/s */ } static inline void desc43_set_symbolrate_bcd(uint8_t *p_desc, uint32_t i_symbolrate_bcd) { p_desc[ 9] = (i_symbolrate_bcd >> 20) & 0xff; p_desc[10] = (i_symbolrate_bcd >> 12) & 0xff; p_desc[11] = (i_symbolrate_bcd >> 4) & 0xff; p_desc[12] = ((i_symbolrate_bcd & 0x0f) << 4) | (p_desc[12] & 0x0f); } static inline uint8_t desc43_get_fecinner(const uint8_t *p_desc) { return p_desc[12] & 0xf; } static inline void desc43_set_fecinner(uint8_t *p_desc, uint8_t i_fecinner) { p_desc[12] = (p_desc[12] & 0xf0) | (i_fecinner & 0x0f); } static inline const char *dvb_delivery_get_fec(uint8_t i_fec) { switch (i_fec) { case 0x0: return "undefined"; case 0x1: return "1/2"; case 0x2: return "2/3"; case 0x3: return "3/4"; case 0x4: return "5/6"; case 0x5: return "7/8"; case 0x6: return "8/9"; case 0x7: return "3/5"; case 0x8: return "4/5"; case 0x9: return "9/10"; case 0xf: return "none"; default: return "reserved"; } } static inline bool desc43_validate(const uint8_t *p_desc) { return desc_get_length(p_desc) >= DESC43_HEADER_SIZE - DESC_HEADER_SIZE; } static inline void desc43_print(const uint8_t *p_desc, f_print pf_print, void *opaque, print_type_t i_print_type) { unsigned int i_pos = desc43_get_position(p_desc); uint8_t i_polarization = desc43_get_polarization(p_desc); const char *psz_polarization = "";; uint8_t i_rolloff = desc43_get_rolloff(p_desc); uint8_t i_modulation = desc43_get_modulation(p_desc); const char *psz_modulation = ""; switch (i_polarization) { case 0x0: psz_polarization = "H"; break; case 0x1: psz_polarization = "V"; break; case 0x2: psz_polarization = "L"; break; case 0x3: psz_polarization = "R"; break; } switch (i_rolloff) { case 0x0: i_rolloff = 35; break; case 0x1: i_rolloff = 25; break; case 0x2: i_rolloff = 20; break; } switch (i_modulation) { case 0x0: psz_modulation = "auto"; break; case 0x1: psz_modulation = "qpsk"; break; case 0x2: psz_modulation = "8psk"; break; case 0x3: psz_modulation = "16-qam"; break; } switch (i_print_type) { case PRINT_XML: if (desc43_get_dvbs2(p_desc)) pf_print(opaque, "", desc43_get_frequency(p_desc), psz_polarization, i_pos / 10, i_pos % 10, desc43_get_east(p_desc) ? 'E' : 'W', i_rolloff, psz_modulation, desc43_get_symbolrate(p_desc), dvb_delivery_get_fec(desc43_get_fecinner(p_desc))); else pf_print(opaque, "", desc43_get_frequency(p_desc), psz_polarization, i_pos / 10, i_pos % 10, desc43_get_east(p_desc) ? 'E' : 'W', psz_modulation, desc43_get_symbolrate(p_desc), dvb_delivery_get_fec(desc43_get_fecinner(p_desc))); break; default: if (desc43_get_dvbs2(p_desc)) pf_print(opaque, " - desc 43 dvb-s2 frequency=%u%s pos=%u.%u%c rolloff=0.%hhu modulation=%s symbolrate=%u fecinner=%s", desc43_get_frequency(p_desc), psz_polarization, i_pos / 10, i_pos % 10, desc43_get_east(p_desc) ? 'E' : 'W', i_rolloff, psz_modulation, desc43_get_symbolrate(p_desc), dvb_delivery_get_fec(desc43_get_fecinner(p_desc))); else pf_print(opaque, " - desc 43 dvb-s frequency=%u%s pos=%u.%u%c modulation=%s symbolrate=%u fecinner=%s", desc43_get_frequency(p_desc), psz_polarization, i_pos / 10, i_pos % 10, desc43_get_east(p_desc) ? 'E' : 'W', psz_modulation, desc43_get_symbolrate(p_desc), dvb_delivery_get_fec(desc43_get_fecinner(p_desc))); } } #ifdef __cplusplus } #endif #endif