func: static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
  
  {
  
      int64_t pos = avio_tell(pb);
  
      avio_wb32(pb, 0); /* size */
  
      ffio_wfourcc(pb, "stbl");
  
      mov_write_stsd_tag(pb, track);
  
      mov_write_stts_tag(pb, track);
  
      if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
  
           track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
  
          track->has_keyframes && track->has_keyframes < track->entry)
  
          mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
  
      if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
  
          mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
  
      if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
  
          track->flags & MOV_TRACK_CTTS && track->entry)
  
          mov_write_ctts_tag(pb, track);
  
      mov_write_stsc_tag(pb, track);
  
      mov_write_stsz_tag(pb, track);
  
      mov_write_stco_tag(pb, track);
  
      return update_size(pb, pos);
  
  }
  