TVE3 Threadsafe Using Reservation System. (1 Viewer)

[elliottmc]

This has now been included in MediaPortal 1.3.0alpha, which will be released quite soon.

There have been a couple of last-minute glitches which have delayed things, but we are getting there.

 

[DJBlu]

Good to hear!

 

[corvy]

Grand! Looking 4ward 2 test

 

[DJBlu]

Just looking at the code guys and there is no reservation for EPG, just Timeshifting and Recording.

Is this an oversight?

 

[Sebastiii]

Euh Gibman can answer better but if i understand, in setuptv and then in user properties EPG Grabber can be set

 

[DJBlu]

Euh Gibman can answer better but if i understand, in setuptv and then in user properties EPG Grabber can be set

Disregard my post.

I have found what I needed!

 

[gibman]

Euh Gibman can answer better but if i understand, in setuptv and then in user properties EPG Grabber can be set

Disregard my post.

I have found what I needed!

EPG is using tickets just as well as normal timeshifting.

private bool TuneEPGgrabber(Channel channel, IChannel tuning, Card card, TvResult result)
    {
      try
      {
        _user.CardId = card.idCard;
        ITvCardHandler cardHandler;
        if (ServiceManager.Instance.InternalControllerService.CardCollection.TryGetValue(card.idCard, out cardHandler))
        {
          ICardTuneReservationTicket ticket = null;
          try
          {
            ICardReservation cardReservationImpl = new CardReservationTimeshifting();
            ticket = cardReservationImpl.RequestCardTuneReservation(cardHandler, tuning, _user);
 
            if (ticket != null)
            {
              result = ServiceManager.Instance.InternalControllerService.Tune(ref _user, tuning, channel.idChannel,
                                                                              ticket);
              if (result == TvResult.Succeeded)
              {
                if (!_isRunning || false == ServiceManager.Instance.InternalControllerService.GrabEpg(this, card.idCard))
                {
                  if (!_isRunning)
                    Log.Epg("Tuning finished but EpgGrabber no longer enabled");
                  ServiceManager.Instance.InternalControllerService.StopGrabbingEpg(_user);
                  _user.CardId = -1;
                  Log.Epg("Epg: card:{0} could not start dvbt grabbing", card.idCard);
                  return false;
                }
                _user.CardId = card.idCard;
                return true;
              }
            }
          }
          catch (Exception)
          {
            CardReservationHelper.CancelCardReservation((ITvCardHandler) cardHandler, ticket);
            throw;
          }
        }
        _user.CardId = -1;
        Log.Epg("Epg: card:{0} could not tune to channel:{1}", card.idCard, result.ToString());
        return false;
      }
      catch (Exception ex)
      {
        Log.Write(ex);
        throw;
      }
    }

 

[gibman]

regarding 'multiple tuningdetails on the same card' :
https://forum.team-mediaportal.com/threads/no-cards-available.109338/page-5

so summarize the problem.

This is done when tuning a channel:

1) fetch a list of carddetails from cardallocation
2) request card reservations (tickets) for all those carddetails from (1)
3) cancel superfluous tickets, eg. we want max. 2 tickets per timeshifting session.
4) now iterate tickets, and tune each card until either succesfull or all cards exhausted.
5) if all tickets are spent, then a new iteration will occur (see step#2) although it keeps track of already tried cards, and avoids those.

This works fine as long as the list of carddetails (from step#1) does not have the same cardID multiple times.'
and sadly this is the case with the bug mentioned.

eg. we have 2 carddetails (for a channel with 2 tuningdetails on dvb-t).
detail#1 (frequency 111111) with cardid=1
detail#1 (frequency 222222) with cardid=1

requesting a cardres. ticket for detail#1 works, now reserved.
requesting a cardres. ticket for detail#2 fails, since card is already reserved.

so it looks like it's not possible to request a bunch of tickets based on a list of carddetails containing the same cardId multiple times in one go.

would an alternative be :
1) fetch a list of carddetails from cardallocation
2) iterate carddetails, and request 1 card reservation (ticket) per carddetail
3) now tune each card until either succesfull or all cards exhausted.
5) if all tickets are spent, then a new iteration will occur (see step#2) although it keeps track of already tried cards, and avoids those.

/gibman

 

[Pat Clark]

I thought I should mention that my hybrid cards show separate tuning details for each analog channel, but only one for each QAM channel. I have 3 hybrid cards, so in TV Server Config each analog channel shows 3 tuning details. (And I can't use 1.3.0 Alpha because of the no card available problem.)