void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
                   const uint8_t *src_data[4], const int src_linesizes[4],
                   enum AVPixelFormat pix_fmt, int width, int height)
{
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);

    if (!desc || desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
        return;

    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
        desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
        av_image_copy_plane(dst_data[0], dst_linesizes[0],
                            src_data[0], src_linesizes[0],
                            width, height);
        /* copy the palette */
        memcpy(dst_data[1], src_data[1], 4*256);
    } else {
        int i, planes_nb = 0;

        for (i = 0; i < desc->nb_components; i++)
            planes_nb = FFMAX(planes_nb, desc->comp[i].plane + 1);

        for (i = 0; i < planes_nb; i++) {
            int h = height;
            int bwidth = av_image_get_linesize(pix_fmt, width, i);
            if (bwidth < 0) {
                av_log(NULL, AV_LOG_ERROR, "av_image_get_linesize failed\n");
                return;
            }
            if (i == 1 || i == 2) {
                h = AV_CEIL_RSHIFT(height, desc->log2_chroma_h);
            }
            av_image_copy_plane(dst_data[i], dst_linesizes[i],
                                src_data[i], src_linesizes[i],
                                bwidth, h);
        }
    }
}