diff --git a/dvb/si.h b/dvb/si.h index 3232d80..4646581 100644 --- a/dvb/si.h +++ b/dvb/si.h @@ -44,6 +44,7 @@ #include #include #include +#include #ifdef __cplusplus extern "C" @@ -1036,58 +1037,6 @@ static inline void desc88p28_init(uint8_t *p_desc) /* TODO: unfinished support */ -/***************************************************************************** - * Time Offset Table - *****************************************************************************/ -#define TOT_PID 0x14 -#define TOT_TABLE_ID 0x73 -#define TOT_HEADER_SIZE (PSI_HEADER_SIZE + 7) - -#define tot_set_utc tdt_set_utc -#define tot_get_utc tdt_get_utc - -static inline void tot_init(uint8_t *p_tot) -{ - psi_init(p_tot, false); - psi_set_tableid(p_tot, TOT_TABLE_ID); - p_tot[8] = 0xf0; -} - -static inline void tot_set_desclength(uint8_t *p_tot, uint16_t i_length) -{ - p_tot[8] &= ~0xf; - p_tot[8] |= i_length >> 8; - p_tot[9] = i_length & 0xff; -} - -static inline uint16_t tot_get_desclength(const uint8_t *p_tot) -{ - return ((p_tot[8] & 0xf) << 8) | p_tot[9]; -} - -static inline bool tot_validate(const uint8_t *p_tot) -{ - uint16_t i_section_size = psi_get_length(p_tot) + PSI_HEADER_SIZE; - uint8_t i_tid = psi_get_tableid(p_tot); - - if (psi_get_syntax(p_tot) || i_tid != TOT_TABLE_ID - || i_section_size < TOT_HEADER_SIZE + PSI_CRC_SIZE) - return false; - - /* TOT is a syntax0 table with CRC */ - if (!psi_check_crc(p_tot)) - return false; - - if (i_section_size < TOT_HEADER_SIZE - || i_section_size < TOT_HEADER_SIZE + tot_get_desclength(p_tot)) - return false; - - if (!descs_validate(p_tot + 8)) - return false; - - return true; -} - #ifdef __cplusplus } #endif diff --git a/dvb/si/tot.h b/dvb/si/tot.h new file mode 100644 index 0000000..aa1ad8d --- /dev/null +++ b/dvb/si/tot.h @@ -0,0 +1,102 @@ +/***************************************************************************** + * tot.h: ETSI EN 300 468 Time Offset Table (TOT) + ***************************************************************************** + * Copyright (C) 2009-2010 VideoLAN + * + * Authors: Christophe Massiot + * + * 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_TOT_H__ +#define __BITSTREAM_DVB_TOT_H__ + +#include +#include +#include +#include + +#ifdef __cplusplus +extern "C" +{ +#endif + +/***************************************************************************** + * Time Offset Table + *****************************************************************************/ +#define TOT_PID 0x14 +#define TOT_TABLE_ID 0x73 +#define TOT_HEADER_SIZE (PSI_HEADER_SIZE + 7) + +#define tot_set_utc tdt_set_utc +#define tot_get_utc tdt_get_utc + +static inline void tot_init(uint8_t *p_tot) +{ + psi_init(p_tot, false); + psi_set_tableid(p_tot, TOT_TABLE_ID); + p_tot[8] = 0xf0; +} + +static inline void tot_set_desclength(uint8_t *p_tot, uint16_t i_length) +{ + p_tot[8] &= ~0xf; + p_tot[8] |= i_length >> 8; + p_tot[9] = i_length & 0xff; +} + +static inline uint16_t tot_get_desclength(const uint8_t *p_tot) +{ + return ((p_tot[8] & 0xf) << 8) | p_tot[9]; +} + +static inline bool tot_validate(const uint8_t *p_tot) +{ + uint16_t i_section_size = psi_get_length(p_tot) + PSI_HEADER_SIZE; + uint8_t i_tid = psi_get_tableid(p_tot); + + if (psi_get_syntax(p_tot) || i_tid != TOT_TABLE_ID + || i_section_size < TOT_HEADER_SIZE + PSI_CRC_SIZE) + return false; + + /* TOT is a syntax0 table with CRC */ + if (!psi_check_crc(p_tot)) + return false; + + if (i_section_size < TOT_HEADER_SIZE + || i_section_size < TOT_HEADER_SIZE + tot_get_desclength(p_tot)) + return false; + + if (!descs_validate(p_tot + 8)) + return false; + + return true; +} + +#ifdef __cplusplus +} +#endif + +#endif