func: static int64_t rtmp_read_seek(URLContext *s, int stream_index,
  
                                int64_t timestamp, int flags)
  
  {
  
      RTMP *r = s->priv_data;
  
  
  
      if (flags & AVSEEK_FLAG_BYTE)
  
          return AVERROR(ENOSYS);
  
  
  
      /* seeks are in milliseconds */
  
      timestamp = av_rescale(timestamp, AV_TIME_BASE, 1000);
  
      if (!RTMP_SendSeek(r, timestamp))
  
          return -1;
  
      return timestamp;
  
  }
  