Function av_image_get_buffer_size

libavutil/imgutils.c:466–499

}

int av_image_get_buffer_size(enum AVPixelFormat pix_fmt,
                             int width, int height, int align)
{
    int ret, i;
    int linesize[4];
    ptrdiff_t aligned_linesize[4];
    size_t sizes[4];
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
    if (!desc)
        return AVERROR(EINVAL);

    ret = av_image_check_size(width, height, 0, NULL);
    if (ret < 0)
        return ret;

    ret = av_image_fill_linesizes(linesize, pix_fmt, width);
    if (ret < 0)
        return ret;

    for (i = 0; i < 4; i++)
        aligned_linesize[i] = FFALIGN(linesize[i], align);

    ret = av_image_fill_plane_sizes(sizes, pix_fmt, height, aligned_linesize);
    if (ret < 0)
        return ret;

    ret = 0;
    for (i = 0; i < 4; i++) {
        if (sizes[i] > INT_MAX - ret)
            return AVERROR(EINVAL);
        ret += sizes[i];
    }
    return ret;
}

int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
                            const uint8_t * const src_data[4],