doubango-android/tinyMEDIA/include/tinymedia/tmedia_imageattr.h

/*
* Copyright (C) 2012 Doubango Telecom <http://www.doubango.org>
*
* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO 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 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 DOUBANGO.
*
*/

/**@file tmedia_imageattr.h
 * @brief 'image-attr' parser as per RFC 6236
 *
 * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
 *
 */
#ifndef TINYMEDIA_imageattr_H
#define TINYMEDIA_imageattr_H

#include "tinymedia_config.h"

#include "tmedia_common.h"

TMEDIA_BEGIN_DECLS

#define TMEDIA_imageattr_ARRAY_MAX_SIZE	16

typedef int32_t xyvalue_t;
typedef double qvalue_t;
typedef double spvalue_t;

typedef struct tmedia_imageattr_srange_xs {
    unsigned is_range:1;
    union {
        struct {
            spvalue_t start;
            spvalue_t end;
        } range;
        struct {
            spvalue_t values[TMEDIA_imageattr_ARRAY_MAX_SIZE + 1];
            tsk_size_t count;
        } array;
    };
}
tmedia_imageattr_srange_xt;

typedef struct tmedia_imageattr_xyrange_xs {
    unsigned is_range:1;
    union {
        struct {
            xyvalue_t start;
            xyvalue_t step;
            xyvalue_t end;
        } range;
        struct {
            xyvalue_t values[TMEDIA_imageattr_ARRAY_MAX_SIZE + 1];
            tsk_size_t count;
        } array;
    };
}
tmedia_imageattr_xyrange_xt;

typedef struct tmedia_imageattr_set_xs {
    tmedia_imageattr_xyrange_xt xrange;
    tmedia_imageattr_xyrange_xt yrange;
    tmedia_imageattr_srange_xt srange;
    struct {
        unsigned is_present:1;
        spvalue_t start;
        spvalue_t end;
    } prange;
    qvalue_t qvalue;
}
tmedia_imageattr_set_xt;

typedef struct tmedia_imageattr_xs {
    struct {
        tmedia_imageattr_set_xt sets[TMEDIA_imageattr_ARRAY_MAX_SIZE + 1];
        tsk_size_t count;
    } send;
    struct {
        tmedia_imageattr_set_xt sets[TMEDIA_imageattr_ARRAY_MAX_SIZE + 1];
        tsk_size_t count;
    } recv;
}
tmedia_imageattr_xt;

TINYMEDIA_API int tmedia_imageattr_parse(tmedia_imageattr_xt* self, const void* in_data, tsk_size_t in_size);

TMEDIA_END_DECLS

#endif /* TINYMEDIA_imageattr_H */