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/*
* section and descriptor parser
*
* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
* Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR
#define _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR
#error Must include dvb/data_broadcast_id_descriptor.h first
#endif
/**
* Broadcast IDs for MHP.
*/
enum {
DVB_BROADCAST_ID_MHP_OBJECT_CAROUSEL = 0x00f0,
DVB_BROADCAST_ID_MHP_MPE = 0x00f1,
};
/**
* dvb_mhp_data_broadcast_id_descriptor structure.
*/
struct dvb_mhp_data_broadcast_id_descriptor {
struct dvb_data_broadcast_id_descriptor d;
/* uint16_t application_type[] */
} __ucsi_packed;
/**
* Process a dvb_mhp_data_broadcast_id_descriptor.
*
* @param d Generic descriptor structure.
* @return dvb_mhp_data_broadcast_id_descriptor pointer, or NULL on error.
*/
static inline struct dvb_mhp_data_broadcast_id_descriptor*
dvb_mhp_data_broadcast_id_descriptor_codec(struct dvb_data_broadcast_id_descriptor* d)
{
uint8_t * buf;
int len;
int pos = 0;
struct dvb_mhp_data_broadcast_id_descriptor *res =
(struct dvb_mhp_data_broadcast_id_descriptor *) d;
if ((res->d.data_broadcast_id < 0xf0) || (res->d.data_broadcast_id > 0xfe))
return NULL;
buf = dvb_data_broadcast_id_descriptor_id_selector_byte(d);
len = dvb_data_broadcast_id_descriptor_id_selector_byte_length(d);
if (len % 2)
return NULL;
while(pos < len) {
bswap16(buf+pos);
pos+=2;
}
return res;
}
/**
* Accessor for the application_type field of a dvb_mhp_data_broadcast_id_descriptor.
*
* @param d dvb_mhp_data_broadcast_id_descriptor pointer.
* @return Pointer to the field.
*/
static inline uint16_t *
dvb_mhp_data_broadcast_id_descriptor_id_application_type(struct dvb_mhp_data_broadcast_id_descriptor *d)
{
return (uint16_t *) dvb_data_broadcast_id_descriptor_id_selector_byte((struct dvb_data_broadcast_id_descriptor*) d);
}
/**
* Determine the number of entries in the application_type field of a dvb_mhp_data_broadcast_id_descriptor.
*
* @param d dvb_data_broadcast_id_descriptor pointer.
* @return Length of the field in bytes.
*/
static inline int
dvb_mhp_data_broadcast_id_descriptor_id_application_type_count(struct dvb_mhp_data_broadcast_id_descriptor *d)
{
return dvb_data_broadcast_id_descriptor_id_selector_byte_length((struct dvb_data_broadcast_id_descriptor*) d) >> 1;
}
#ifdef __cplusplus
}
#endif
#endif
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