desc_extension.h

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/*
 * Copyright (c) 2013-2014 - Mauro Carvalho Chehab <m.chehab@samsung.com>
 *
 * 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
 *
 */

#ifndef _EXTENSION_DESC_H
#define _EXTENSION_DESC_H

#include <libdvbv5/descriptors.h>

struct dvb_v5_fe_parms;

enum extension_descriptors {
        image_icon_descriptor                           = 0x00,
        cpcm_delivery_signalling_descriptor             = 0x01,
        CP_descriptor                                   = 0x02,
        CP_identifier_descriptor                        = 0x03,
        T2_delivery_system_descriptor                   = 0x04,
        SH_delivery_system_descriptor                   = 0x05,
        supplementary_audio_descriptor                  = 0x06,
        network_change_notify_descriptor                = 0x07,
        message_descriptor                              = 0x08,
        target_region_descriptor                        = 0x09,
        target_region_name_descriptor                   = 0x0a,
        service_relocated_descriptor                    = 0x0b,
};

struct dvb_extension_descriptor {
        uint8_t type;
        uint8_t length;
        struct dvb_desc *next;

        uint8_t extension_code;

        struct dvb_desc *descriptor;
} __attribute__((packed));


typedef int  (*dvb_desc_ext_init_func) (struct dvb_v5_fe_parms *parms,
                                        const uint8_t *buf,
                                        struct dvb_extension_descriptor *ext,
                                        void *desc);
typedef void (*dvb_desc_ext_print_func)(struct dvb_v5_fe_parms *parms,
                                        const struct dvb_extension_descriptor *ext,
                                        const void *desc);
typedef void (*dvb_desc_ext_free_func) (const void *desc);

struct dvb_ext_descriptor {
        const char *name;
        dvb_desc_ext_init_func init;
        dvb_desc_ext_print_func print;
        dvb_desc_ext_free_func free;
        ssize_t size;
};


#ifdef __cplusplus
extern "C" {
#endif

int dvb_extension_descriptor_init(struct dvb_v5_fe_parms *parms,
                                  const uint8_t *buf, struct dvb_desc *desc);

void dvb_extension_descriptor_print(struct dvb_v5_fe_parms *parms,
                                    const struct dvb_desc *desc);

void dvb_extension_descriptor_free(struct dvb_desc *desc);

#ifdef __cplusplus
}
#endif

#endif