/**

 * Copyright (c) 2016 Neil Birkbeck <neil.birkbeck@gmail.com>

 *

 * 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 <string.h>

#include "mastering_display_metadata.h"

#include "mem.h"

static void get_defaults(AVMasteringDisplayMetadata *mastering)

{

    for (int i = 0; i < 3; i++)

        for (int j = 0; j < 2; j++)

            mastering->display_primaries[i][j] = (AVRational) { 0, 1 };

    mastering->white_point[0] =

    mastering->white_point[1] =

    mastering->min_luminance  =

    mastering->max_luminance  = (AVRational) { 0, 1 };

}

AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc(void)

{

    return av_mastering_display_metadata_alloc_size(NULL);

}

AVMasteringDisplayMetadata *av_mastering_display_metadata_alloc_size(size_t *size)

{

    AVMasteringDisplayMetadata *mastering = av_mallocz(sizeof(AVMasteringDisplayMetadata));

    if (!mastering)

        return NULL;

    get_defaults(mastering);

    if (size)

        *size = sizeof(*mastering);

    return mastering;

}

AVMasteringDisplayMetadata *av_mastering_display_metadata_create_side_data(AVFrame *frame)

{

    AVFrameSideData *side_data = av_frame_new_side_data(frame,

                                                        AV_FRAME_DATA_MASTERING_DISPLAY_METADATA,

                                                        sizeof(AVMasteringDisplayMetadata));

    if (!side_data)

        return NULL;

    memset(side_data->data, 0, sizeof(AVMasteringDisplayMetadata));

    get_defaults((AVMasteringDisplayMetadata *)side_data->data);

    return (AVMasteringDisplayMetadata *)side_data->data;

}

AVContentLightMetadata *av_content_light_metadata_alloc(size_t *size)

{

    AVContentLightMetadata *metadata = av_mallocz(sizeof(AVContentLightMetadata));

    if (size)

        *size = sizeof(*metadata);

    return metadata;

}

AVContentLightMetadata *av_content_light_metadata_create_side_data(AVFrame *frame)

{

    AVFrameSideData *side_data = av_frame_new_side_data(frame,

                                                        AV_FRAME_DATA_CONTENT_LIGHT_LEVEL,

                                                        sizeof(AVContentLightMetadata));

    if (!side_data)

        return NULL;

    memset(side_data->data, 0, sizeof(AVContentLightMetadata));

    return (AVContentLightMetadata *)side_data->data;

}