hdr_dynamic_vivid_metadata.c

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/**
 * Copyright (c) 2021 Limin Wang <lance.lmwang at 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 "hdr_dynamic_vivid_metadata.h"
#include "mem.h"
 
AVDynamicHDRVivid *av_dynamic_hdr_vivid_alloc(size_t *size)
{
    AVDynamicHDRVivid *hdr_vivid = av_mallocz(sizeof(AVDynamicHDRVivid));
    if (!hdr_vivid)
        return NULL;
 
    if (size)
        *size = sizeof(*hdr_vivid);
 
    return hdr_vivid;
}
 
AVDynamicHDRVivid *av_dynamic_hdr_vivid_create_side_data(AVFrame *frame)
{
    AVFrameSideData *side_data = av_frame_new_side_data(frame,
                                                        AV_FRAME_DATA_DYNAMIC_HDR_VIVID,
                                                        sizeof(AVDynamicHDRVivid));
    if (!side_data)
        return NULL;
 
    memset(side_data->data, 0, sizeof(AVDynamicHDRVivid));
 
    return (AVDynamicHDRVivid *)side_data->data;
}