static int subtitle_thread(void *arg)

{

    VideoState *is = arg;

    Frame *sp;

    int got_subtitle;

    double pts;

    int i, j;

    int r, g, b, y, u, v, a;



    for (;;) {

        while (is->paused && !is->subtitleq.abort_request) {

            SDL_Delay(10);

        }



        if (!(sp = frame_queue_peek_writable(&is->subpq)))

            return 0;



        if ((got_subtitle = decoder_decode_frame(&is->subdec, &sp->sub)) < 0)

            break;



        pts = 0;



        if (got_subtitle && sp->sub.format == 0) {

            if (sp->sub.pts != AV_NOPTS_VALUE)

                pts = sp->sub.pts / (double)AV_TIME_BASE;

            sp->pts = pts;

            sp->serial = is->subdec.pkt_serial;



            for (i = 0; i < sp->sub.num_rects; i++)

            {

                for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)

                {

                    RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);

                    y = RGB_TO_Y_CCIR(r, g, b);

                    u = RGB_TO_U_CCIR(r, g, b, 0);

                    v = RGB_TO_V_CCIR(r, g, b, 0);

                    YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);

                }

            }



            

            frame_queue_push(&is->subpq);

        } else if (got_subtitle) {

            avsubtitle_free(&sp->sub);

        }

    }

    return 0;

}
