static void do_video_stats(OutputStream *ost, int frame_size)
{

    time_t today3;
    time(&today3);
    //OutputFile *file1=output_files[0];
    OutputStream *stream1 = ost;
    //struct tm *today1 = localtime(&today3);
    AVCodecContext *enc;
    int frame_number;
    double ti1, bitrate, avg_bitrate;

    /* this is executed just the first time do_video_stats is called */
    if (!vstats_file) {
        vstats_file = fopen(vstats_filename, "w");
      fprintf(vstats_file, "filename = %s\n",obj2.name);
        if (!vstats_file) {
            perror("fopen");
            exit_program(1);
        }
    }

    enc = ost->enc_ctx;
    if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
        frame_number = ost->st->nb_frames;
    //   fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame ? enc->coded_frame->quality / (float)FF_QP2LAMBDA : 0);
        if (enc->coded_frame && (enc->flags&CODEC_FLAG_PSNR))
            fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));

      //  fprintf(vstats_file,"f_size= %6d ", frame_size);
        /* compute pts value */
        ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base);
        if (ti1 < 0.01)
            ti1 = 0.01;

        bitrate     = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
        avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0;
        fprintf(vstats_file, "time= %0.3f\t ""clocktime = %s\t", ti1,ctime(&today3));
        //fprintf(vstats_file, "time= %0.3f\t ""clocktime = %02d:%02d:%02d\t""day/month/year = %02d:%02d:%04d\n" , ti1,today1->tm_hour,today1->tm_min,today1->tm_sec,today1->tm_mday,today1->tm_mon,today1->tm_year);
        //fprintf(vstats_file, "type= %c\n", enc->coded_frame ? av_get_picture_type_char(enc->coded_frame->pict_type) : 'I');
    }
}