static int dvbsub_display_end_segment(AVCodecContext *avctx, const uint8_t *buf,
                                      int buf_size, AVSubtitle *sub)
{
    DVBSubContext *ctx = avctx->priv_data;
    DVBSubDisplayDefinition *display_def = ctx->display_definition;

    DVBSubRegion *region;
    DVBSubRegionDisplay *display;
    AVSubtitleRect *rect;
    DVBSubCLUT *clut;
    uint32_t *clut_table;
    int i;
    int offset_x=0, offset_y=0;

    sub->rects = NULL;
    sub->start_display_time = 0;
    sub->end_display_time = ctx->time_out * 1000;
    sub->format = 0;

    if (display_def) {
        offset_x = display_def->x;
        offset_y = display_def->y;
    }

    sub->num_rects = ctx->display_list_size;

    if (sub->num_rects > 0) {
        sub->rects = av_mallocz(sizeof(*sub->rects) * sub->num_rects);
        if (!sub->rects)
            return AVERROR(ENOMEM);
        for (i = 0; i < sub->num_rects; i++) {
            sub->rects[i] = av_mallocz(sizeof(*sub->rects[i]));
            if (!sub->rects[i]) {
                return AVERROR(ENOMEM);
            }
        }
    }

    i = 0;

    for (display = ctx->display_list; display; display = display->next) {
        region = get_region(ctx, display->region_id);
        rect = sub->rects[i];

        if (!region)
            continue;

        rect->x = display->x_pos + offset_x;
        rect->y = display->y_pos + offset_y;
        rect->w = region->width;
        rect->h = region->height;
        rect->nb_colors = 16;
        rect->type      = SUBTITLE_BITMAP;
        rect->linesize[0] = region->width;

        clut = get_clut(ctx, region->clut);

        if (!clut)
            clut = &default_clut;

        switch (region->depth) {
        case 2:
            clut_table = clut->clut4;
            break;
        case 8:
            clut_table = clut->clut256;
            break;
        case 4:
        default:
            clut_table = clut->clut16;
            break;
        }

        rect->data[1] = av_mallocz(AVPALETTE_SIZE);
        if (!rect->data[1]) {
            av_free(sub->rects);
            return AVERROR(ENOMEM);
        }
        memcpy(rect->data[1], clut_table, (1 << region->depth) * sizeof(uint32_t));

        rect->data[0] = av_malloc(region->buf_size);
        if (!rect->data[0]) {
            av_free(rect->data[1]);
            av_free(sub->rects);
            return AVERROR(ENOMEM);
        }
        memcpy(rect->data[0], region->pbuf, region->buf_size);

#if FF_API_AVPICTURE
FF_DISABLE_DEPRECATION_WARNINGS
{
        int j;
        for (j = 0; j < 4; j++) {
            rect->pict.data[j] = rect->data[j];
            rect->pict.linesize[j] = rect->linesize[j];
        }
}
FF_ENABLE_DEPRECATION_WARNINGS
#endif

        i++;
    }

    sub->num_rects = i;

#ifdef DEBUG
    save_display_set(ctx);
#endif

    return 1;
}