/*

 * This file is part of FFmpeg.

 *

 * FFmpeg 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.

 *

 * FFmpeg 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 FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#include <stddef.h>

#include <stdint.h>

#include "mem.h"

#include "tdrdi.h"

AV3DReferenceDisplaysInfo *av_tdrdi_alloc(unsigned int nb_displays, size_t *out_size)

{

    struct TestStruct {

        AV3DReferenceDisplaysInfo p;

        AV3DReferenceDisplay      b;

    };

    const size_t entries_offset = offsetof(struct TestStruct, b);

    size_t size = entries_offset;

    AV3DReferenceDisplaysInfo *tdrdi;

    if (nb_displays > (SIZE_MAX - size) / sizeof(AV3DReferenceDisplay))

        return NULL;

    size += sizeof(AV3DReferenceDisplay) * nb_displays;

    tdrdi = av_mallocz(size);

    if (!tdrdi)

        return NULL;

    tdrdi->num_ref_displays = nb_displays;

    tdrdi->entry_size       = sizeof(AV3DReferenceDisplay);

    tdrdi->entries_offset   = entries_offset;

    if (out_size)

        *out_size = size;

    return tdrdi;

}