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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)
* Copyright (C) 2008 Patrick Boettcher (pb@linuxtv.org)
*
* 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_TIME_SLICE_FEC_IDENTIFIER_DESCRIPTOR
#define _UCSI_DVB_TIME_SLICE_FEC_IDENTIFIER_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/types.h>
/*
* dvb_time_slice_fec_identifier_descriptor structure.
*/
struct dvb_time_slice_fec_identifier_descriptor {
struct descriptor d;
EBIT4(uint8_t time_slicing :1; ,
uint8_t mpe_fec :2; ,
uint8_t reserved :2; ,
uint8_t frame_size :3; );
uint8_t max_burst_duration;
EBIT2(uint8_t max_average_rate :4; ,
uint8_t time_slice_fec_id :4; );
/* id_selector_bytes[] */
};
static inline struct dvb_time_slice_fec_identifier_descriptor *
dvb_time_slice_fec_identifier_descriptor_codec(struct descriptor* d)
{
if (d->len < 3)
return NULL;
return (struct dvb_time_slice_fec_identifier_descriptor *) d;
}
static inline uint8_t dvb_time_slice_fec_identifier_selector_byte_length(struct dvb_time_slice_fec_identifier_descriptor *d)
{
return d->d.len - 3;
}
static inline uint8_t * dvb_time_slice_fec_identifier_selector_bytes(struct dvb_time_slice_fec_identifier_descriptor *d)
{
if (d->d.len < 3)
return NULL;
else
return ((uint8_t *) d) + 2 + 3;
}
static inline uint16_t dvb_time_slice_fec_identifier_max_burst_duration_msec(struct dvb_time_slice_fec_identifier_descriptor *d)
{
return (d->max_burst_duration + 1) * 20;
}
static inline uint16_t dvb_time_slice_fec_identifier_frame_size_kbits(struct dvb_time_slice_fec_identifier_descriptor *d)
{
if (d->frame_size > 3)
return 0;
return (d->frame_size+1) * 512;
}
static inline uint16_t dvb_time_slice_fec_identifier_frame_size_rows(struct dvb_time_slice_fec_identifier_descriptor *d)
{
return dvb_time_slice_fec_identifier_frame_size_kbits(d) / 2;
}
#ifdef __cplusplus
}
#endif
#endif
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