Commit ab181e94 authored by Adam Charrett's avatar Adam Charrett Committed by Jean-Paul Saman

Add support for parsing ATSC tables: EIT STT VCT & new descriptors

Adds ATSC table support for: EIT STT VCT
Adds descriptor support for: 13 14 62 66 73 76 83
Signed-off-by: default avatarAdam Charrett <adam@dvbstreamer.org>
Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
parent 385db261
......@@ -17,6 +17,8 @@ pkginclude_HEADERS = dvbpsi.h psi.h descriptor.h demux.h \
tables/pat.h tables/pmt.h tables/sdt.h tables/eit.h \
tables/cat.h tables/nit.h tables/tot.h tables/sis.h \
tables/bat.h \
tables/atsc_vct.h tables/atsc_stt.h \
tables/atsc_eit.h \
descriptors/dr_02.h \
descriptors/dr_03.h \
descriptors/dr_04.h \
......@@ -31,6 +33,8 @@ pkginclude_HEADERS = dvbpsi.h psi.h descriptor.h demux.h \
descriptors/dr_0d.h \
descriptors/dr_0e.h \
descriptors/dr_0f.h \
descriptors/dr_13.h \
descriptors/dr_14.h \
descriptors/dr_42.h \
descriptors/dr_43.h \
descriptors/dr_44.h \
......@@ -45,7 +49,12 @@ pkginclude_HEADERS = dvbpsi.h psi.h descriptor.h demux.h \
descriptors/dr_58.h \
descriptors/dr_59.h \
descriptors/dr_5a.h \
descriptors/dr_62.h \
descriptors/dr_66.h \
descriptors/dr_69.h \
descriptors/dr_73.h \
descriptors/dr_76.h \
descriptors/dr_83.h \
descriptors/dr_8a.h \
descriptors/dr.h
......@@ -63,6 +72,8 @@ descriptors_src = descriptors/dr_02.c \
descriptors/dr_0d.c \
descriptors/dr_0e.c \
descriptors/dr_0f.c \
descriptors/dr_13.c \
descriptors/dr_14.c \
descriptors/dr_42.c \
descriptors/dr_43.c \
descriptors/dr_44.c \
......@@ -77,7 +88,12 @@ descriptors_src = descriptors/dr_02.c \
descriptors/dr_58.c \
descriptors/dr_59.c \
descriptors/dr_5a.c \
descriptors/dr_62.c \
descriptors/dr_66.c \
descriptors/dr_69.c \
descriptors/dr_73.c \
descriptors/dr_76.c \
descriptors/dr_83.c \
descriptors/dr_8a.c
tables_src = tables/pat.c tables/pat_private.h \
......@@ -88,5 +104,8 @@ tables_src = tables/pat.c tables/pat_private.h \
tables/nit.c tables/nit_private.h \
tables/tot.c tables/tot_private.h \
tables/sis.c tables/sis_private.h \
tables/bat.c tables/bat_private.h
tables/bat.c tables/bat_private.h \
tables/atsc_vct.c tables/atsc_vct.h \
tables/atsc_stt.c tables/atsc_stt.h \
tables/atsc_eit.c tables/atsc_eit.h
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_13.c
Decode Carousel Id Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_13.h"
/*****************************************************************************
* dvbpsi_DecodeCarouselIdDr
*****************************************************************************/
dvbpsi_carousel_id_dr_t *dvbpsi_DecodeCarouselIdDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_carousel_id_dr_t *p_decoded;
/* Check the tag */
if (p_descriptor->i_tag != 0x13)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
/* Check length */
if (p_descriptor->i_length < 4)
{
return NULL;
}
p_decoded = (dvbpsi_carousel_id_dr_t*)malloc(sizeof(dvbpsi_carousel_id_dr_t) + p_descriptor->i_length - 4);
if (!p_decoded)
{
return NULL;
}
p_decoded->i_carousel_id= ((p_descriptor->p_data[0] & 0xff) << 24) | ((p_descriptor->p_data[1] & 0xff) << 16)|
((p_descriptor->p_data[2] & 0xff) << 8) | (p_descriptor->p_data[3] & 0xff);
p_decoded->i_private_data_len= p_descriptor->i_length - 4;
memcpy(p_decoded->s_private_data, &p_descriptor->p_data[4], p_decoded->i_private_data_len);
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_13.h
Decode Carousel id Descriptor.
*/
#ifndef _DR_13_H
#define _DR_13_H
/*****************************************************************************
* dvbpsi_carousel_id_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_carousel_id_dr_s
* \brief Data Broadcast id Descriptor
*
* This structure is used to store a decoded Carsouel ID descriptor.
*/
/*!
* \typedef struct dvbpsi_carousel_id_dr_s dvbpsi_carousel_id_dr_t
* \brief dvbpsi_carousel_id_dr_t type definition.
*/
typedef struct dvbpsi_carousel_id_dr_s
{
uint32_t i_carousel_id;
uint8_t i_private_data_len;
uint8_t s_private_data[0];
}dvbpsi_carousel_id_dr_t;
/*****************************************************************************
* dvbpsi_DecodeCarouselIdDr
*****************************************************************************/
/*!
* \fn dvbpsi_carousel_id_dr_t *dvbpsi_DecodeCarouselIdDr(
* dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Carousel id descriptor (tag 0x13)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_carousel_id_dr_t structure.
*/
dvbpsi_carousel_id_dr_t *dvbpsi_DecodeCarouselIdDr(dvbpsi_descriptor_t *p_descriptor);
#endif
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_14.c
Decode Assocation Tag Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_14.h"
/*****************************************************************************
* dvbpsi_DecodeAssociationTagDr
*****************************************************************************/
dvbpsi_association_tag_dr_t *dvbpsi_DecodeAssociationTagDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_association_tag_dr_t *p_decoded;
uint8_t selector_len;
uint8_t private_data_len;
/* Check the tag */
if (p_descriptor->i_tag != 0x14)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
/* Check length */
if (p_descriptor->i_length < 5)
{
return NULL;
}
selector_len = p_descriptor->p_data[4];
/* Invalid selector length */
if (selector_len + 5 > p_descriptor->i_length)
{
return NULL;
}
private_data_len= p_descriptor->i_length - (5 + selector_len);
p_decoded = (dvbpsi_association_tag_dr_t*)malloc(sizeof(dvbpsi_association_tag_dr_t) + selector_len + private_data_len);
if (!p_decoded)
{
return NULL;
}
p_decoded->i_tag = ((p_descriptor->p_data[0] & 0xff) << 8) | (p_descriptor->p_data[1] & 0xff);
p_decoded->i_use = ((p_descriptor->p_data[2] & 0xff) << 8) | (p_descriptor->p_data[3] & 0xff);
p_decoded->i_selector_len = selector_len;
p_decoded->i_private_data_len= private_data_len;
p_decoded->p_selector = ((void*)p_decoded) + sizeof(dvbpsi_association_tag_dr_t);
p_decoded->p_private_data = p_decoded->p_selector + selector_len;
memcpy(p_decoded->p_selector, &p_descriptor->p_data[5 ], selector_len);
memcpy(p_decoded->p_private_data, &p_descriptor->p_data[5 + selector_len], private_data_len);
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_14.h
Decode Association Tag Descriptor.
*/
#ifndef _DR_14_H
#define _DR_14_H
/*****************************************************************************
* dvbpsi_association_tag_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_association_tag_dr_s
* \brief Data Broadcast id Descriptor
*
* This structure is used to store a decoded Association Tag descriptor.
*/
/*!
* \typedef struct dvbpsi_association_tag_dr_s dvbpsi_association_tag_dr_t
* \brief dvbpsi_association_tag_dr_t type definition.
*/
typedef struct dvbpsi_association_tag_dr_s
{
uint16_t i_tag;
uint16_t i_use;
uint8_t i_selector_len;
uint8_t *p_selector;
uint8_t i_private_data_len;
uint8_t *p_private_data;
}dvbpsi_association_tag_dr_t;
/*****************************************************************************
* dvbpsi_DecodeAssociationTagDr
*****************************************************************************/
/*!
* \fn dvbpsi_association_tag_dr_t *dvbpsi_DecodeAssociationTagDr(
* dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Association Tag descriptor (tag 0x14)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_association_tag_dr_t structure.
*/
dvbpsi_association_tag_dr_t *dvbpsi_DecodeAssociationTagDr(dvbpsi_descriptor_t *p_descriptor);
#endif
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_62.c
Decode Frequency List Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_62.h"
/*****************************************************************************
* dvbpsi_DecodeFrequencyListDr
*****************************************************************************/
dvbpsi_frequency_list_dr_t *dvbpsi_DecodeFrequencyListDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_frequency_list_dr_t *p_decoded;
int i;
/* Check the tag */
if (p_descriptor->i_tag != 0x62)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
/* Check length */
if ((p_descriptor->i_length - 1) % 4)
{
return NULL;
}
p_decoded = (dvbpsi_frequency_list_dr_t*)malloc(sizeof(dvbpsi_frequency_list_dr_t));
if (!p_decoded)
{
return NULL;
}
p_decoded->i_number_of_frequencies = (p_descriptor->i_length - 1) / 4;
p_decoded->i_coding_type = p_descriptor->p_data[0] & 0x3;
for (i = 0; i < p_decoded->i_number_of_frequencies; i ++)
{
p_decoded->p_center_frequencies[i] = (p_descriptor->p_data[(i * 4) + 1] << 24) |
(p_descriptor->p_data[(i * 4) + 2] << 16) |
(p_descriptor->p_data[(i * 4) + 3] << 8) |
p_descriptor->p_data[(i * 4) + 4];
if ((p_decoded->i_coding_type == 1) || (p_decoded->i_coding_type == 2))
{
p_decoded->p_center_frequencies[i] = dvbpsi_Bcd8ToUint32(p_decoded->p_center_frequencies[i]);
}
}
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
uint32_t dvbpsi_Bcd8ToUint32(uint32_t bcd)
{
uint32_t i_decoded;
i_decoded = ((bcd >> 28) & 0xf) * 10000000;
i_decoded += ((bcd >> 24) & 0xf) * 1000000;
i_decoded += ((bcd >> 20) & 0xf) * 100000;
i_decoded += ((bcd >> 16) & 0xf) * 10000;
i_decoded += ((bcd >> 12) & 0xf) * 1000;
i_decoded += ((bcd >> 8) & 0xf) * 100;
i_decoded += ((bcd >> 4) & 0xf) * 10;
i_decoded += ((bcd >> 0) & 0xf) * 1;
return i_decoded;
}
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_62.h
Decode Frequency List Descriptor.
*/
#ifndef _DR_62_H
#define _DR_62_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_frequency_list_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_frequency_list_dr_s
* \brief Frequency List Descriptor
*
* This structure is used to store a decoded Frequency List descriptor.
*/
/*!
* \typedef struct dvbpsi_frequency_list_dr_s dvbpsi_frequency_list_dr_t
* \brief dvbpsi_frequency_list_dr_t type definition.
*/
typedef struct dvbpsi_frequency_list_dr_s
{
uint8_t i_coding_type; /*!< Coding type, 1 = Satellite, 2 = Cable, 3 = Terrestrial */
uint8_t i_number_of_frequencies; /*!< Number of center frequencies present */
uint32_t p_center_frequencies[63]; /*!< Center frequency as defined by a delivery_system_descriptor */
}dvbpsi_frequency_list_dr_t;
/*****************************************************************************
* dvbpsi_DecodeFrequencyListDr
*****************************************************************************/
/*!
* \fn dvbpsi_frequency_list_dr_t *dvbpsi_DecodeFrequencyListDr(
* dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Frequency List descriptor (tag 0x62)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_frequency_list_dr_t structure.
*/
dvbpsi_frequency_list_dr_t *dvbpsi_DecodeFrequencyListDr(dvbpsi_descriptor_t *p_descriptor);
/*****************************************************************************
* dvbpsi_Bcd8ToUint32
*****************************************************************************/
/*!
* \fn uint32_t dvbpsi_Bcd8ToUint32(uint32_t bcd)
* \brief Decode an 8 character BCD encoded number into a uint32_t.
* \param bcd BCD value to convert.
* \return Decoded value as a uint32_t.
*/
uint32_t dvbpsi_Bcd8ToUint32(uint32_t bcd);
#ifdef __cplusplus
};
#endif
#endif
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_66.c
Decode Data Broadcast Id Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_66.h"
/*****************************************************************************
* dvbpsi_DecodeDataBroadcastIdDr
*****************************************************************************/
dvbpsi_data_broadcast_id_dr_t *dvbpsi_DecodeDataBroadcastIdDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_data_broadcast_id_dr_t *p_decoded;
/* Check the tag */
if (p_descriptor->i_tag != 0x66)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
/* Check length */
if (p_descriptor->i_length < 2)
{
return NULL;
}
p_decoded = (dvbpsi_data_broadcast_id_dr_t*)malloc(sizeof(dvbpsi_data_broadcast_id_dr_t) + p_descriptor->i_length - 2);
if (!p_decoded)
{
return NULL;
}
p_decoded->i_data_broadcast_id = ((p_descriptor->p_data[0] & 0xff) << 8) | (p_descriptor->p_data[1] & 0xff);
p_decoded->i_id_selector_len = p_descriptor->i_length - 2;
memcpy(p_decoded->s_id_selector, &p_descriptor->p_data[2], p_decoded->i_id_selector_len);
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2010 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_66.h
Decode Data Broadcast id Descriptor.
*/
#ifndef _DR_66_H
#define _DR_66_H
/*****************************************************************************
* dvbpsi_data_broadcast_id_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_data_broadcast_id_dr_s
* \brief Data Broadcast id Descriptor
*
* This structure is used to store a decoded Data Broadcast id descriptor.
*/
/*!
* \typedef struct dvbpsi_data_broadcast_id_dr_s dvbpsi_data_broadcast_id_dr_t
* \brief dvbpsi_data_broadcast_id_dr_t type definition.
*/
typedef struct dvbpsi_data_broadcast_id_dr_s
{
uint16_t i_data_broadcast_id;
uint8_t i_id_selector_len;
uint8_t s_id_selector[0];
}dvbpsi_data_broadcast_id_dr_t;
/*****************************************************************************
* dvbpsi_DecodeDataBroadcastIdDr
*****************************************************************************/
/*!
* \fn dvbpsi_data_broadcast_id_dr_t *dvbpsi_DecodeDataBroadcastIdDr(
* dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Data broadcast id descriptor (tag 0x66)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_data_broadcast_id_dr_t structure.
*/
dvbpsi_data_broadcast_id_dr_t *dvbpsi_DecodeDataBroadcastIdDr(dvbpsi_descriptor_t *p_descriptor);
#endif
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_73.c
Decode Default Authority Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_73.h"
/*****************************************************************************
* dvbpsi_DecodeDefaultAuthorityDr
*****************************************************************************/
dvbpsi_default_authority_dr_t *dvbpsi_DecodeDefaultAuthorityDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_default_authority_dr_t *p_decoded;
/* Check the tag */
if (p_descriptor->i_tag != 0x73)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
p_decoded = (dvbpsi_default_authority_dr_t*)malloc(sizeof(dvbpsi_default_authority_dr_t));
if (!p_decoded)
{
return NULL;
}
memcpy(&p_decoded->authority, p_descriptor->p_data, p_descriptor->i_length);
p_decoded->authority[p_descriptor->i_length] = 0;
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_73.h
Decode Default Authority Descriptor.
*/
#ifndef _DR_73_H
#define _DR_73_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_content_id_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_default_authority_dr_s
* \brief Default Authority Descriptor
*
* This structure is used to store a decoded Default Authority descriptor.
*/
/*!
* \typedef struct dvbpsi_default_authority_dr_s dvbpsi_default_authority_dr_t
* \brief dvbpsi_default_authority_dr_t type definition.
*/
typedef struct dvbpsi_default_authority_dr_s
{
uint8_t authority[255];
}dvbpsi_default_authority_dr_t;
/*****************************************************************************
* dvbpsi_DecodeLCNDr
*****************************************************************************/
/*!
* \fn dvbpsi_default_authority_dr_t *dvbpsi_DecodeDefaultAuthorityDr(dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Default Authority descriptor (tag 0x73)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_default_authority_dr_t structure.
*/
dvbpsi_default_authority_dr_t *dvbpsi_DecodeDefaultAuthorityDr(dvbpsi_descriptor_t *p_descriptor);
#ifdef __cplusplus
};
#endif
#endif
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_76.c
Decode Content Identifier Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_76.h"
/*****************************************************************************
* dvbpsi_DecodeLCNDr
*****************************************************************************/
dvbpsi_content_id_dr_t *dvbpsi_DecodeContentIdDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_content_id_dr_t *p_decoded;
int byte;
/* Check the tag */
if (p_descriptor->i_tag != 0x76)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
p_decoded = (dvbpsi_content_id_dr_t*)malloc(sizeof(dvbpsi_content_id_dr_t));
if (!p_decoded)
{
return NULL;
}
p_decoded->i_number_of_entries = 0;
for (byte = 0; byte < p_descriptor->i_length; p_decoded->i_number_of_entries ++)
{
dvbpsi_crid_entry_t *entry = &p_decoded->p_entries[p_decoded->i_number_of_entries];
entry->i_type = (p_descriptor->p_data[byte] >> 2) & 0x3f;
entry->i_location = p_descriptor->p_data[byte] & 3;
byte ++;
if (entry->i_location == CRID_LOCATION_DESCRIPTOR)
{
uint8_t len = p_descriptor->p_data[byte];
unsigned int i;
byte ++;
for (i = 0; i < len; i ++)
{
entry->value.path[i] = p_descriptor->p_data[byte + i];
}
byte += len;
entry->value.path[i] = 0;
}
else if (entry->i_location == CRID_LOCATION_CIT)
{
entry->value.ref = (p_descriptor->p_data[byte] << 8) | p_descriptor->p_data[byte + 1];
byte += 2;
}
else
{
/* Unknown location */
free(p_decoded);
return NULL;
}
}
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_76.h
Decode Content Identifier Descriptor.
*/
#ifndef _DR_76_H
#define _DR_76_H
#ifdef __cplusplus
extern "C" {
#endif
#define CRID_TYPE_UNDEFINED 0
#define CRID_TYPE_CONTENT 1
#define CRID_TYPE_SERIES 2
#define CRID_TYPE_RECOMMENDATION 3
#define CRID_LOCATION_DESCRIPTOR 0
#define CRID_LOCATION_CIT 1
/*****************************************************************************
* dvbpsi_lcn_entry_t
*****************************************************************************/
/*!
* \struct dvbpsi_crid_entry_s
* \brief CRID Entry
*
* This structure is used to store a decoded CRID entry.
*/
/*!
* \typedef struct dvbpsi_crid_entry_s dvbpsi_crid_entry_t
* \brief dvbpsi_crid_entry_t type definition.
*/
typedef struct dvbpsi_crid_entry_s
{
uint8_t i_type;
uint8_t i_location;
union
{
uint8_t path[253];
uint16_t ref;
}value;
}dvbpsi_crid_entry_t;
/*****************************************************************************
* dvbpsi_content_id_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_content_id_dr_s
* \brief Content Identifier Descriptor
*
* This structure is used to store a decoded Content Identifier descriptor.
*/
/*!
* \typedef struct dvbpsi_content_id_dr_s dvbpsi_content_id_dr_t
* \brief dvbpsi_content_id_dr_t type definition.
*/
typedef struct dvbpsi_content_id_dr_s
{
uint8_t i_number_of_entries; /*!< Number of CRID entries present. */
dvbpsi_crid_entry_t p_entries[85];/*!< Array of CRID entries. */
}dvbpsi_content_id_dr_t;
/*****************************************************************************
* dvbpsi_DecodeLCNDr
*****************************************************************************/
/*!
* \fn dvbpsi_content_id_dr_s dvbpsi_DecodeContentIdDr(dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Content Identifier descriptor (tag 0x76)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_content_id_dr_t structure.
*/
dvbpsi_content_id_dr_t *dvbpsi_DecodeContentIdDr(dvbpsi_descriptor_t *p_descriptor);
#ifdef __cplusplus
};
#endif
#endif
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_83.c
Decode Logical Channel Number Descriptor.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "../dvbpsi_private.h"
#include "descriptor.h"
#include "dr_83.h"
/*****************************************************************************
* dvbpsi_DecodeLCNDr
*****************************************************************************/
dvbpsi_lcn_dr_t *dvbpsi_DecodeLCNDr(dvbpsi_descriptor_t *p_descriptor)
{
dvbpsi_lcn_dr_t *p_decoded;
int i;
/* Check the tag */
if (p_descriptor->i_tag != 0x83)
{
return NULL;
}
/* Don't decode twice */
if (p_descriptor->p_decoded)
{
return p_descriptor->p_decoded;
}
/* Check length */
if (p_descriptor->i_length % 4)
{
return NULL;
}
p_decoded = (dvbpsi_lcn_dr_t*)malloc(sizeof(dvbpsi_lcn_dr_t));
if (!p_decoded)
{
return NULL;
}
p_decoded->i_number_of_entries = p_descriptor->i_length / 4;
for (i = 0; i < p_decoded->i_number_of_entries; i ++)
{
p_decoded->p_entries[i].i_service_id = (p_descriptor->p_data[i * 4] << 8) |
p_descriptor->p_data[(i * 4) + 1];
p_decoded->p_entries[i].b_visible_service_flag = (p_descriptor->p_data[(i * 4) + 2] >> 7) & 1;
p_decoded->p_entries[i].i_logical_channel_number = ((p_descriptor->p_data[(i * 4) + 2] << 8) |
p_descriptor->p_data[(i * 4) + 3]) & 0x3ff;
}
p_descriptor->p_decoded = (void*)p_decoded;
return p_decoded;
}
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
dr_83.h
Decode Logical Channel Number Descriptor.
*/
#ifndef _DR_83_H
#define _DR_83_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_lcn_entry_t
*****************************************************************************/
/*!
* \struct dvbpsi_lcn_entry_s
* \brief Logical Channel Number Entry
*
* This structure is used to store a decoded Logical Channel Number entry.
*/
/*!
* \typedef struct dvbpsi_lcn_entry_s dvbpsi_lcn_entry_t
* \brief dvbpsi_lcn_entry_t type definition.
*/
typedef struct dvbpsi_lcn_entry_s
{
uint16_t i_service_id; /*!< Service ID this logical channel number refers to */
int b_visible_service_flag; /*!< Whether this LCN should be visible to the user. */
uint16_t i_logical_channel_number; /*!<The logical channel number for this service. */
}dvbpsi_lcn_entry_t;
/*****************************************************************************
* dvbpsi_lcn_dr_s
*****************************************************************************/
/*!
* \struct dvbpsi_lcn_dr_s
* \brief Logical Channel Number Descriptor
*
* This structure is used to store a decoded Logical Channel Number descriptor.
*/
/*!
* \typedef struct dvbpsi_lcn_dr_s dvbpsi_lcn_dr_t
* \brief dvbpsi_lcn_dr_t type definition.
*/
typedef struct dvbpsi_lcn_dr_s
{
uint8_t i_number_of_entries; /*!< Number of LCN entries present. */
dvbpsi_lcn_entry_t p_entries[64];/*!< Array of LCN entries. */
}dvbpsi_lcn_dr_t;
/*****************************************************************************
* dvbpsi_DecodeLCNDr
*****************************************************************************/
/*!
* \fn dvbpsi_lcn_dr_t dvbpsi_DecodeLCNDr(dvbpsi_descriptor_t *p_descriptor)
* \brief Decode a Logical Channel Number descriptor (tag 0x83)
* \param p_descriptor Raw descriptor to decode.
* \return NULL if the descriptor could not be decoded or a pointer to a
* dvbpsi_lcn_dr_t structure.
*/
dvbpsi_lcn_dr_t *dvbpsi_DecodeLCNDr(dvbpsi_descriptor_t *p_descriptor);
#ifdef __cplusplus
};
#endif
#endif
This diff is collapsed.
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
eit.h
Decode PSIP Event Information Table.
*/
#ifndef _ATSC_EIT_H
#define _ATSC_EIT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_eit_event_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_eit_event_s
* \brief EIT Event structure.
*
* This structure is used to store decoded event information.
*/
/*!
* \typedef struct dvbpsi_atsc_eit_event_s dvbpsi_atsc_eit_event_t
* \brief dvbpsi_atsc_eit_event_t type definition.
*/
typedef struct dvbpsi_atsc_eit_event_s
{
uint16_t i_event_id; /*!< Event ID */
uint32_t i_start_time; /*!< Start time in GPS seconds */
uint8_t i_etm_location; /*!< Extended Text Message location. */
uint32_t i_length_seconds;/*!< Length of program in seconds. */
uint8_t i_title_length; /*!< Length of the title in bytes */
uint8_t i_title[256]; /*!< Title in multiple string structure format. */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor structure. */
struct dvbpsi_atsc_eit_event_s *p_next;/*!< Next event information structure. */
} dvbpsi_atsc_eit_event_t;
/*****************************************************************************
* dvbpsi_atsc_eit_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_eit_s
* \brief EIT structure.
*
* This structure is used to store a decoded EIT.
*/
/*!
* \typedef struct dvbpsi_atsc_eit_s dvbpsi_atsc_eit_t
* \brief dvbpsi_atsc_eit_t type definition.
*/
typedef struct dvbpsi_atsc_eit_s
{
uint8_t i_version; /*!< version_number */
int b_current_next; /*!< current_next_indicator */
uint16_t i_source_id; /*!< Source id used to match against channels */
uint8_t i_protocol; /*!< PSIP Protocol version */
dvbpsi_atsc_eit_event_t *p_first_event; /*!< First event information structure. */
} dvbpsi_atsc_eit_t;
/*****************************************************************************
* dvbpsi_eit_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_eit_callback)(void* p_cb_data,
dvbpsi_atsc_eit_t* p_new_eit)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_eit_callback)(void* p_cb_data, dvbpsi_atsc_eit_t* p_new_eit);
/*****************************************************************************
* dvbpsi_atsc_AttachEIT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_AttachEIT(dvbpsi_demux_t * p_demux, uint8_t i_table_id,
dvbpsi_atsc_eit_callback pf_callback, void* p_cb_data)
*
* \brief Creation and initialization of a EIT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xCB.
* \param i_extension Table ID extension, here TS ID.
* \param pf_callback function to call back on new EIT.
* \param p_cb_data private data given in argument to the callback.
* \return 0 if everything went ok.
*/
int dvbpsi_atsc_AttachEIT(dvbpsi_decoder_t * p_psi_decoder, uint8_t i_table_id,
uint16_t i_extension, dvbpsi_atsc_eit_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_DetachEIT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachEIT(dvbpsi_demux_t * p_demux, uint8_t i_table_id)
*
* \brief Destroy a EIT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xCB.
* \param i_extension Table ID extension, here TS ID.
* \return nothing.
*/
void dvbpsi_atsc_DetachEIT(dvbpsi_demux_t * p_demux, uint8_t i_table_id,
uint16_t i_extension);
/*****************************************************************************
* dvbpsi_atsc_InitEIT/dvbpsi_atsc_NewEIT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitEIT(dvbpsi_atsc_eit_t* p_eit, uint8_t i_version,
int b_current_next, uint8_t i_protocol, uint16_t i_source_id)
* \brief Initialize a user-allocated dvbpsi_atsc_eit_t structure.
* \param p_eit pointer to the EIT structure
* \param i_version EIT version
* \param b_current_next current next indicator
* \param i_protocol PSIP Protocol version.
* \param i_source_id Source id.
* \return nothing.
*/
void dvbpsi_atsc_InitEIT(dvbpsi_atsc_eit_t* p_eit,uint8_t i_version, int b_current_next,
uint8_t i_protocol, uint16_t i_source_id);
/*!
* \def dvbpsi_atsc_NewEIT(p_eit, i_network_id, i_version, b_current_next,
i_protocol i_source_id)
* \brief Allocate and initialize a new dvbpsi_eit_t structure. Use ObjectRefDec to delete it.
* \param p_eit pointer to the EIT structure
* \param i_network_id network id
* \param i_version EIT version
* \param b_current_next current next indicator
* \param i_protocol PSIP Protocol version.
* \param b_cable_eit Whether this is CEIT or a TEIT.
* \return nothing.
*/
#define dvbpsi_atsc_NewEIT(p_eit, i_version, b_current_next, i_protocol, \
i_source_id) \
do { \
p_eit = (dvbpsi_atsc_eit_t*)malloc(sizeof(dvbpsi_atsc_eit_t)); \
if(p_eit != NULL) \
dvbpsi_atsc_InitEIT(p_eit, i_version, b_current_next, i_protocol, \
i_source_id); \
} while(0);
/*****************************************************************************
* dvbpsi_atsc_EmptyEIT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptyEIT(dvbpsi_atsc_eit_t* p_eit)
* \brief Clean a dvbpsi_eit_t structure.
* \param p_eit pointer to the EIT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptyEIT(dvbpsi_atsc_eit_t *p_eit);
/*!
* \def dvbpsi_atsc_DeleteEIT(p_eit)
* \brief Clean and free a dvbpsi_eit_t structure.
* \param p_vct pointer to the EIT structure
* \return nothing.
*/
#define dvbpsi_atsc_DeleteEIT(p_eit) \
do { \
dvbpsi_atsc_EmptyEIT(p_eit); \
free(p_eit); \
} while(0);
#ifdef __cplusplus
};
#endif
#endif
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
stt.c
Decode PSIP System Time Table.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "dvbpsi.h"
#include "dvbpsi_private.h"
#include "psi.h"
#include "descriptor.h"
#include "demux.h"
#include "atsc_stt.h"
typedef struct dvbpsi_atsc_stt_decoder_s
{
dvbpsi_atsc_stt_callback pf_callback;
void * p_cb_data;
} dvbpsi_atsc_stt_decoder_t;
dvbpsi_descriptor_t *dvbpsi_atsc_STTAddDescriptor(
dvbpsi_atsc_stt_t *p_stt,
uint8_t i_tag, uint8_t i_length,
uint8_t *p_data);
void dvbpsi_atsc_GatherSTTSections(dvbpsi_decoder_t * p_psi_decoder,
void * p_private_decoder,
dvbpsi_psi_section_t * p_section);
void dvbpsi_atsc_DecodeSTTSections(dvbpsi_atsc_stt_t* p_stt,
dvbpsi_psi_section_t* p_section);
/*****************************************************************************
* dvbpsi_atsc_AttachSTT
*****************************************************************************
* Initialize a STT subtable decoder.
*****************************************************************************/
int dvbpsi_atsc_AttachSTT(dvbpsi_decoder_t * p_psi_decoder, uint8_t i_table_id,
dvbpsi_atsc_stt_callback pf_callback, void* p_cb_data)
{
dvbpsi_demux_t* p_demux = (dvbpsi_demux_t*)p_psi_decoder->p_private_decoder;
dvbpsi_demux_subdec_t* p_subdec;
dvbpsi_atsc_stt_decoder_t* p_stt_decoder;
if(dvbpsi_demuxGetSubDec(p_demux, i_table_id, 0))
{
DVBPSI_ERROR_ARG("STT decoder",
"Already a decoder for (table_id == 0x%02x)",
i_table_id);
return 1;
}
p_subdec = (dvbpsi_demux_subdec_t*)malloc(sizeof(dvbpsi_demux_subdec_t));
if(p_subdec == NULL)
{
return 1;
}
p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)malloc(sizeof(dvbpsi_atsc_stt_decoder_t));
if(p_stt_decoder == NULL)
{
free(p_subdec);
return 1;
}
/* subtable decoder configuration */
p_subdec->pf_callback = &dvbpsi_atsc_GatherSTTSections;
p_subdec->p_cb_data = p_stt_decoder;
p_subdec->i_id = (uint32_t)i_table_id << 16;
p_subdec->pf_detach = dvbpsi_atsc_DetachSTT;
/* Attach the subtable decoder to the demux */
p_subdec->p_next = p_demux->p_first_subdec;
p_demux->p_first_subdec = p_subdec;
/* STT decoder information */
p_stt_decoder->pf_callback = pf_callback;
p_stt_decoder->p_cb_data = p_cb_data;
return 0;
}
/*****************************************************************************
* dvbpsi_atsc_DetachSTT
*****************************************************************************
* Close a STT decoder.
*****************************************************************************/
void dvbpsi_atsc_DetachSTT(dvbpsi_demux_t * p_demux, uint8_t i_table_id, uint16_t i_extension)
{
dvbpsi_demux_subdec_t* p_subdec;
dvbpsi_demux_subdec_t** pp_prev_subdec;
dvbpsi_atsc_stt_decoder_t* p_stt_decoder;
p_subdec = dvbpsi_demuxGetSubDec(p_demux, i_table_id, 0);
if(p_demux == NULL)
{
DVBPSI_ERROR_ARG("STT Decoder",
"No such STT decoder (table_id == 0x%02x,"
"extension == 0x00)",
i_table_id);
return;
}
p_stt_decoder = (dvbpsi_atsc_stt_decoder_t*)p_subdec->p_cb_data;
free(p_subdec->p_cb_data);
pp_prev_subdec = &p_demux->p_first_subdec;
while(*pp_prev_subdec != p_subdec)
pp_prev_subdec = &(*pp_prev_subdec)->p_next;
*pp_prev_subdec = p_subdec->p_next;
free(p_subdec);
}
/*****************************************************************************
* dvbpsi_atsc_InitSTT
*****************************************************************************
* Initialize a pre-allocated dvbpsi_atsc_stt_t structure.
*****************************************************************************/
void dvbpsi_atsc_InitSTT(dvbpsi_atsc_stt_t *p_stt, uint8_t i_protocol)
{
p_stt->i_protocol = i_protocol;
p_stt->p_first_descriptor = NULL;
}
/*****************************************************************************
* dvbpsi_atsc_EmptySTT
*****************************************************************************
* Clean a dvbpsi_atsc_stt_t structure.
*****************************************************************************/
void dvbpsi_atsc_EmptySTT(dvbpsi_atsc_stt_t* p_stt)
{
dvbpsi_DeleteDescriptors(p_stt->p_first_descriptor);
p_stt->p_first_descriptor = NULL;
}
/*****************************************************************************
* dvbpsi_atsc_STTAddDescriptor
*****************************************************************************
* Add a descriptor to the STT table.
*****************************************************************************/
dvbpsi_descriptor_t *dvbpsi_atsc_STTAddDescriptor(
dvbpsi_atsc_stt_t *p_stt,
uint8_t i_tag, uint8_t i_length,
uint8_t *p_data)
{
dvbpsi_descriptor_t * p_descriptor
= dvbpsi_NewDescriptor(i_tag, i_length, p_data);
if(p_descriptor)
{
if(p_stt->p_first_descriptor == NULL)
{
p_stt->p_first_descriptor = p_descriptor;
}
else
{
dvbpsi_descriptor_t * p_last_descriptor = p_stt->p_first_descriptor;
while(p_last_descriptor->p_next != NULL)
p_last_descriptor = p_last_descriptor->p_next;
p_last_descriptor->p_next = p_descriptor;
}
}
return p_descriptor;
}
/*****************************************************************************
* dvbpsi_atsc_GatherSTTSections
*****************************************************************************
* Callback for the subtable demultiplexor.
*****************************************************************************/
void dvbpsi_atsc_GatherSTTSections(dvbpsi_decoder_t * p_psi_decoder,
void * p_private_decoder,
dvbpsi_psi_section_t * p_section)
{
dvbpsi_atsc_stt_decoder_t * p_stt_decoder
= (dvbpsi_atsc_stt_decoder_t*)p_private_decoder;
dvbpsi_atsc_stt_t *p_stt;
if(!p_section->b_syntax_indicator)
{
/* Invalid section_syntax_indicator */
DVBPSI_ERROR("STT decoder",
"invalid section (section_syntax_indicator == 0)");
}
else
{
dvbpsi_atsc_NewSTT(p_stt, p_section->p_payload_start[0]);
if (p_stt)
{
/* Decode the sections */
dvbpsi_atsc_DecodeSTTSections(p_stt,
p_section);
/* Delete the sections */
dvbpsi_DeletePSISections(p_section);
/* signal the new STT */
p_stt_decoder->pf_callback(p_stt_decoder->p_cb_data,
p_stt);
}
}
}
/*****************************************************************************
* dvbpsi_DecodeSTTSection
*****************************************************************************
* STT decoder.
*****************************************************************************/
void dvbpsi_atsc_DecodeSTTSections(dvbpsi_atsc_stt_t* p_stt,
dvbpsi_psi_section_t* p_section)
{
uint8_t *p_byte, *p_end;
uint16_t i_length = 0;
p_byte = p_section->p_payload_start + 1;
p_stt->i_system_time = (((uint32_t)p_byte[0]) << 24) |
(((uint32_t)p_byte[1]) << 16) |
(((uint32_t)p_byte[2]) << 8) |
((uint32_t)p_byte[3]);
p_stt->i_gps_utc_offset = p_byte[4];
p_stt->i_daylight_savings = (((uint16_t)p_byte[5]) << 16) |
((uint16_t)p_byte[6]);
p_byte += 7;
/* Table descriptors */
i_length = (p_section->i_length - 17);
p_end = p_byte + i_length;
while(p_byte + 2 <= p_end)
{
uint8_t i_tag = p_byte[0];
uint8_t i_length = p_byte[1];
if(i_length + 2 <= p_end - p_byte)
dvbpsi_atsc_STTAddDescriptor(p_stt, i_tag, i_length, p_byte + 2);
p_byte += 2 + i_length;
}
}
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
stt.h
Decode PSIP System Time Table.
*/
#ifndef _ATSC_STT_H
#define _ATSC_STT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_stt_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_stt_s
* \brief STT structure.
*
* This structure is used to store a decoded STT.
*/
/*!
* \typedef struct dvbpsi_atsc_stt_s dvbpsi_atsc_stt_t
* \brief dvbpsi_atsc_stt_t type definition.
*/
typedef struct dvbpsi_atsc_stt_s
{
uint8_t i_protocol; /*!< PSIP Protocol version */
uint32_t i_system_time; /*!< GPS seconds since 1 January 1980 00:00:00 UTC. */
uint8_t i_gps_utc_offset; /*!< Seconds offset between GPS and UTC time. */
uint16_t i_daylight_savings; /*!< Daylight savings control bytes. */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
} dvbpsi_atsc_stt_t;
/*****************************************************************************
* dvbpsi_atsc_stt_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_stt_callback)(void* p_cb_data,
dvbpsi_atsc_stt_t* p_new_stt)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_stt_callback)(void* p_cb_data, dvbpsi_atsc_stt_t* p_new_stt);
/*****************************************************************************
* dvbpsi_atsc_AttachSTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_AttachSTT(dvbpsi_demux_t * p_demux, uint8_t i_table_id,
dvbpsi_atsc_stt_callback pf_callback, void* p_cb_data)
*
* \brief Creation and initialization of a STT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xCD.
* \param pf_callback function to call back on new STT.
* \param p_cb_data private data given in argument to the callback.
* \return 0 if everything went ok.
*/
int dvbpsi_atsc_AttachSTT(dvbpsi_decoder_t * p_psi_decoder, uint8_t i_table_id,
dvbpsi_atsc_stt_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_atsc_DetachSTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachSTT(dvbpsi_demux_t * p_demux, uint8_t i_table_id)
*
* \brief Destroy a STT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xCD.
* \param i_extension Table extension, ignored as this should always be 0.
* (Required to match prototype for demux)
* \return nothing.
*/
void dvbpsi_atsc_DetachSTT(dvbpsi_demux_t * p_demux, uint8_t i_table_id, uint16_t i_externsion);
/*****************************************************************************
* dvbpsi_atsc_InitSTT/dvbpsi_atsc_NewSTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitSTT(dvbpsi_atsc_stt_t* p_stt, uint8_t i_version,
int b_current_next, uint8_t i_protocol)
* \brief Initialize a user-allocated dvbpsi_atsc_stt_t structure.
* \param p_stt pointer to the STT structure
* \param i_protocol PSIP Protocol version.
* \return nothing.
*/
void dvbpsi_atsc_InitSTT(dvbpsi_atsc_stt_t *p_stt,uint8_t i_protocol);
/*!
* \def dvbpsi_NewSTT(p_stt, i_network_id, i_version, b_current_next)
* \brief Allocate and initialize a new dvbpsi_atsc_stt_t structure. Use ObjectRefDec to delete it.
* \param p_stt pointer to the STT structure
* \param i_protocol PSIP Protocol version.
* \return nothing.
*/
#define dvbpsi_atsc_NewSTT(p_stt, i_protocol) \
do { \
p_stt = (dvbpsi_atsc_stt_t*)malloc(sizeof(dvbpsi_atsc_stt_t)); \
if(p_stt != NULL) \
dvbpsi_atsc_InitSTT(p_stt, i_protocol); \
} while(0);
/*****************************************************************************
* dvbpsi_atsc_EmptySTT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptySTT(dvbpsi_atsc_stt_t* p_stt)
* \brief Clean a dvbpsi_atsc_stt_t structure.
* \param p_stt pointer to the STT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptySTT(dvbpsi_atsc_stt_t *p_stt);
/*!
* \def dvbpsi_atsc_DeleteSTT(p_vct)
* \brief Clean and free a dvbpsi_stt_t structure.
* \param p_vct pointer to the STT structure
* \return nothing.
*/
#define dvbpsi_atsc_DeleteSTT(p_stt) \
do { \
dvbpsi_atsc_EmptySTT(p_stt); \
free(p_stt); \
} while(0);
#ifdef __cplusplus
};
#endif
#endif
This diff is collapsed.
/*
Copyright (C) 2006 Adam Charrett
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
vct.h
Decode PSIP Virtual Channel Table.
*/
#ifndef _ATSC_VCT_H
#define _ATSC_VCT_H
#ifdef __cplusplus
extern "C" {
#endif
/*****************************************************************************
* dvbpsi_atsc_vct_channel_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_vct_channel_s
* \brief VCT channel structure.
*
* This structure is used to store a decoded VCT channel information.
*/
/*!
* \typedef struct dvbpsi_atsc_vct_channel_s dvbpsi_atsc_vct_channel_t
* \brief dvbpsi_atsc_vct_channel_t type definition.
*/
typedef struct dvbpsi_atsc_vct_channel_s
{
uint8_t i_short_name[14];/*!< Channel name (7*UTF16-BE)*/
uint16_t i_major_number; /*!< Channel major number */
uint16_t i_minor_number; /*!< Channel minor number */
uint8_t i_modulation; /*!< Modulation mode. */
uint32_t i_carrier_freq; /*!< Carrier center frequency. */
uint16_t i_channel_tsid; /*!< Channel Transport stream id. */
uint16_t i_program_number;/*!< Channel MPEG program number. */
uint8_t i_etm_location; /*!< Extended Text Message location. */
int b_access_controlled; /*!< Whether the channel is scrambled. */
int b_path_select; /*!< Path selection, only used by CVCT. */
int b_out_of_band; /*!< Whether the channel is carried on the out-of-band
physical transmission channel, only used by CVCT. */
int b_hidden; /*!< Not accessible directly by the user. */
int b_hide_guide; /*!< Whether the channel should not be displayed in the guide. */
uint8_t i_service_type; /*!< Channel type. */
uint16_t i_source_id; /*!< Programming source associated with the channel.*/
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
struct dvbpsi_atsc_vct_channel_s *p_next; /*!< next element of the list */
} dvbpsi_atsc_vct_channel_t;
/*****************************************************************************
* dvbpsi_atsc_vct_t
*****************************************************************************/
/*!
* \struct dvbpsi_atsc_vct_s
* \brief VCT structure.
*
* This structure is used to store a decoded VCT.
*/
/*!
* \typedef struct dvbpsi_atsc_vct_s dvbpsi_atsc_vct_t
* \brief dvbpsi_atsc_vct_t type definition.
*/
typedef struct dvbpsi_atsc_vct_s
{
uint8_t i_version; /*!< version_number */
int b_current_next; /*!< current_next_indicator */
uint16_t i_ts_id; /*!< transport stream id */
uint8_t i_protocol; /*!< PSIP Protocol version */
int b_cable_vct; /*!< 1 if this is a cable VCT, 0 if it is a Terrestrial VCT. */
dvbpsi_atsc_vct_channel_t *p_first_channel; /*!< First channel information structure. */
dvbpsi_descriptor_t *p_first_descriptor; /*!< First descriptor. */
} dvbpsi_atsc_vct_t;
/*****************************************************************************
* dvbpsi_vct_callback
*****************************************************************************/
/*!
* \typedef void (* dvbpsi_atsc_vct_callback)(void* p_cb_data,
dvbpsi_atsc_vct_t* p_new_vct)
* \brief Callback type definition.
*/
typedef void (* dvbpsi_atsc_vct_callback)(void* p_cb_data, dvbpsi_atsc_vct_t* p_new_vct);
/*****************************************************************************
* dvbpsi_atsc_AttachVCT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_AttachVCT(dvbpsi_demux_t * p_demux, uint8_t i_table_id,
dvbpsi_atsc_vct_callback pf_callback, void* p_cb_data)
*
* \brief Creation and initialization of a VCT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xC8 or 0xC9.
* \param i_extension Table ID extension, here TS ID.
* \param pf_callback function to call back on new VCT.
* \param p_cb_data private data given in argument to the callback.
* \return 0 if everything went ok.
*/
int dvbpsi_atsc_AttachVCT(dvbpsi_decoder_t * p_psi_decoder, uint8_t i_table_id,
uint16_t i_extension, dvbpsi_atsc_vct_callback pf_callback, void* p_cb_data);
/*****************************************************************************
* dvbpsi_DetachVCT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_DetachVCT(dvbpsi_demux_t * p_demux, uint8_t i_table_id)
*
* \brief Destroy a VCT decoder.
* \param p_demux Subtable demultiplexor to which the decoder is attached.
* \param i_table_id Table ID, 0xC8 or 0xC9.
* \param i_extension Table ID extension, here TS ID.
* \return nothing.
*/
void dvbpsi_atsc_DetachVCT(dvbpsi_demux_t * p_demux, uint8_t i_table_id,
uint16_t i_extension);
/*****************************************************************************
* dvbpsi_atsc_InitVCT/dvbpsi_atsc_NewVCT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_InitVCT(dvbpsi_atsc_vct_t* p_vct, uint8_t i_version,
int b_current_next, uint8_t i_protocol)
* \brief Initialize a user-allocated dvbpsi_atsc_vct_t structure.
* \param p_vct pointer to the VCT structure
* \param i_version VCT version
* \param b_current_next current next indicator
* \param i_protocol PSIP Protocol version.
* \param i_ts_id Transport Stream id.
* \param b_cable_vct Whether this is CVCT or a TVCT.
* \return nothing.
*/
void dvbpsi_atsc_InitVCT(dvbpsi_atsc_vct_t* p_vct,uint8_t i_version, int b_current_next,
uint8_t i_protocol, uint16_t i_ts_id, int b_cable_vct);
/*!
* \def dvbpsi_atsc_NewVCT(p_vct, i_network_id, i_version, b_current_next)
* \brief Allocate and initialize a new dvbpsi_vct_t structure.
* \param p_vct pointer to the VCT structure
* \param i_network_id network id
* \param i_version VCT version
* \param b_current_next current next indicator
* \param i_protocol PSIP Protocol version.
* \param b_cable_vct Whether this is CVCT or a TVCT.
* \return nothing.
*/
#define dvbpsi_atsc_NewVCT(p_vct, i_version, b_current_next, i_protocol, \
i_ts_id, b_cable_vct) \
do { \
p_vct = (dvbpsi_atsc_vct_t*)malloc(sizeof(dvbpsi_atsc_vct_t)); \
if(p_vct != NULL) \
dvbpsi_atsc_InitVCT(p_vct, i_version, b_current_next, i_protocol, \
i_ts_id, b_cable_vct); \
} while(0);
/*****************************************************************************
* dvbpsi_atsc_EmptyVCT/dvbpsi_atsc_DeleteVCT
*****************************************************************************/
/*!
* \fn void dvbpsi_atsc_EmptyVCT(dvbpsi_atsc_vct_t* p_vct)
* \brief Clean a dvbpsi_vct_t structure.
* \param p_vct pointer to the VCT structure
* \return nothing.
*/
void dvbpsi_atsc_EmptyVCT(dvbpsi_atsc_vct_t *p_vct);
/*!
* \def dvbpsi_atsc_DeleteVCT(p_vct)
* \brief Clean and free a dvbpsi_vct_t structure.
* \param p_vct pointer to the VCT structure
* \return nothing.
*/
#define dvbpsi_atsc_DeleteVCT(p_vct) \
do { \
dvbpsi_atsc_EmptyVCT(p_vct); \
free(p_vct); \
} while(0);
#ifdef __cplusplus
};
#endif
#endif
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