desc_logical_channel.h

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/*
 * Copyright (c) 2013 - Mauro Carvalho Chehab <mchehab@kernel.org>
 *
 * This program 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 version 2.1 of the License.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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
 * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * Described on IEC/CENELEC DS/EN 62216-1:2011
 *
 * I couldn't find the original version, so I used what's there at:
 *      http://tdt.telecom.pt/recursos/apresentacoes/Signalling Specifications for DTT deployment in Portugal.pdf
 */
 
#ifndef _LCN_DESC_H
#define _LCN_DESC_H
 
#include <libdvbv5/descriptors.h>
 
struct dvb_desc_logical_channel_number {
        uint16_t service_id;
        union {
                uint16_t bitfield;
                struct {
                        uint16_t logical_channel_number:10;
                        uint16_t reserved:5;
                        uint16_t visible_service_flag:1;
                } __attribute__((packed));
        } __attribute__((packed));
} __attribute__((packed));
 
struct dvb_desc_logical_channel {
        uint8_t type;
        uint8_t length;
        struct dvb_desc *next;
 
        struct dvb_desc_logical_channel_number *lcn;
} __attribute__((packed));
 
struct dvb_v5_fe_parms;
 
#ifdef __cplusplus
extern "C" {
#endif
 
int dvb_desc_logical_channel_init(struct dvb_v5_fe_parms *parms,
                                  const uint8_t *buf, struct dvb_desc *desc);
 
void dvb_desc_logical_channel_print(struct dvb_v5_fe_parms *parms,
                                    const struct dvb_desc *desc);
 
void dvb_desc_logical_channel_free(struct dvb_desc *desc);
 
#ifdef __cplusplus
}
#endif
 
#endif