C++ CPVRChannel::IsRadio方法代码示例

bool CPVRDatabase::Persist(CPVRChannel &channel, bool bQueueWrite /* = false */)
{
  bool bReturn(false);

  /* invalid channel */
  if (channel.UniqueID() <= 0)
  {
    CLog::Log(LOGERROR, "PVR - %s - invalid channel uid: %d", __FUNCTION__, channel.UniqueID());
    return bReturn;
  }

  CStdString strQuery;
  if (channel.ChannelID() <= 0)
  {
    /* new channel */
    strQuery = FormatSQL("INSERT INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "iClientChannelNumber, sInputFormat, sStreamURL, iEncryptionSystem, idEpg) "
        "VALUES (%i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %i, '%s', '%s', %i, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), (channel.IsVirtual() ? 1 : 0), (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.LastWatched(), channel.ClientID(),
        channel.ClientChannelNumber(), channel.InputFormat().c_str(), channel.StreamURL().c_str(), channel.EncryptionSystem(),
        channel.EpgID());
  }
  else
  {
    /* update channel */
    strQuery = FormatSQL("REPLACE INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "iClientChannelNumber, sInputFormat, sStreamURL, iEncryptionSystem, idChannel, idEpg) "
        "VALUES (%i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %i, '%s', '%s', %i, %i, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), (channel.IsVirtual() ? 1 : 0), (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.LastWatched(), channel.ClientID(),
        channel.ClientChannelNumber(), channel.InputFormat().c_str(), channel.StreamURL().c_str(), channel.EncryptionSystem(), channel.ChannelID(),
        channel.EpgID());
  }

  if (bQueueWrite)
  {
    QueueInsertQuery(strQuery);
    bReturn = true;
  }
  else if (ExecuteQuery(strQuery))
  {
    CSingleLock lock(channel.m_critSection);
    if (channel.m_iChannelId <= 0)
      channel.m_iChannelId = (int)m_pDS->lastinsertid();
    bReturn = true;
  }

  return bReturn;
}

bool CPVRDatabase::Persist(CPVRChannel &channel, bool bCommit)
{
  bool bReturn(false);

  /* invalid channel */
  if (channel.UniqueID() <= 0)
  {
    CLog::LogF(LOGERROR, "Invalid channel uid: %d", channel.UniqueID());
    return bReturn;
  }

  CSingleLock lock(m_critSection);

  // Note: Do not use channel.ChannelID value to check presence of channel in channels table. It might not yet be set correctly.
  std::string strQuery = PrepareSQL("iUniqueId = %u AND iClientId = %u", channel.UniqueID(), channel.ClientID());
  const std::string strValue = GetSingleValue("channels", "idChannel", strQuery);
  if (strValue.empty())
  {
    /* new channel */
    strQuery = PrepareSQL("INSERT INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsUserSetName, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "idEpg) "
        "VALUES (%i, %i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsUserSetName() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), 0, (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), static_cast<unsigned int>(channel.LastWatched()), channel.ClientID(),
        channel.EpgID());
  }
  else
  {
    /* update channel */
    strQuery = PrepareSQL("REPLACE INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsUserSetName, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "idChannel, idEpg) "
        "VALUES (%i, %i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %s, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsUserSetName() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), 0, (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), static_cast<unsigned int>(channel.LastWatched()), channel.ClientID(),
        strValue.c_str(),
        channel.EpgID());
  }

  if (QueueInsertQuery(strQuery))
  {
    bReturn = true;

    if (bCommit)
      bReturn = CommitInsertQueries();
  }

  return bReturn;
}

long CPVRDatabase::UpdateChannel(const CPVRChannel &channel, bool bQueueWrite /* = false */)
{
  long iReturn = -1;

  /* invalid channel */
  if (channel.UniqueID() <= 0)
  {
    CLog::Log(LOGERROR, "PVRDB - %s - invalid channel uid: %d",
        __FUNCTION__, channel.UniqueID());
    return iReturn;
  }

  CStdString strQuery;

  if (channel.ChannelID() <= 0)
  {
    /* new channel */
    strQuery = FormatSQL("INSERT INTO Channels ("
        "UniqueId, ChannelNumber, GroupId, IsRadio, IsHidden, "
        "IconPath, ChannelName, IsVirtual, EPGEnabled, EPGScraper, ClientId, "
        "ClientChannelNumber, InputFormat, StreamURL, EncryptionSystem) "
        "VALUES (%i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %i, %i, '%s', '%s', %i)\n",
        channel.UniqueID(), channel.ChannelNumber(), channel.GroupID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), (channel.IsVirtual() ? 1 : 0), (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.ClientID(),
        channel.ClientChannelNumber(), channel.InputFormat().c_str(), channel.StreamURL().c_str(), channel.EncryptionSystem());
  }
  else
  {
    /* update channel */
    strQuery = FormatSQL("REPLACE INTO Channels ("
        "UniqueId, ChannelNumber, GroupId, IsRadio, IsHidden, "
        "IconPath, ChannelName, IsVirtual, EPGEnabled, EPGScraper, ClientId, "
        "ClientChannelNumber, InputFormat, StreamURL, EncryptionSystem, ChannelId) "
        "VALUES (%i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %i, %i, '%s', '%s', %i, %i)\n",
        channel.UniqueID(), channel.ChannelNumber(), channel.GroupID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), (channel.IsVirtual() ? 1 : 0), (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.ClientID(),
        channel.ClientChannelNumber(), channel.InputFormat().c_str(), channel.StreamURL().c_str(), channel.EncryptionSystem(), channel.ChannelID());
  }

  if (bQueueWrite)
  {
    QueueInsertQuery(strQuery);
    iReturn = 0;
  }
  else if (ExecuteQuery(strQuery))
  {
    iReturn = (channel.ChannelID() <= 0) ? (long) m_pDS->lastinsertid() : channel.ChannelID();
  }

  return iReturn;
}

bool CPVRDatabase::Persist(CPVRChannel &channel)
{
  bool bReturn(false);

  /* invalid channel */
  if (channel.UniqueID() <= 0)
  {
    CLog::Log(LOGERROR, "PVR - %s - invalid channel uid: %d", __FUNCTION__, channel.UniqueID());
    return bReturn;
  }

  std::string strQuery;
  if (channel.ChannelID() <= 0)
  {
    /* new channel */
    strQuery = PrepareSQL("INSERT INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsUserSetName, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "idEpg) "
        "VALUES (%i, %i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsUserSetName() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), 0, (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.LastWatched(), channel.ClientID(),
        channel.EpgID());
  }
  else
  {
    /* update channel */
    strQuery = PrepareSQL("REPLACE INTO channels ("
        "iUniqueId, bIsRadio, bIsHidden, bIsUserSetIcon, bIsUserSetName, bIsLocked, "
        "sIconPath, sChannelName, bIsVirtual, bEPGEnabled, sEPGScraper, iLastWatched, iClientId, "
        "idChannel, idEpg) "
        "VALUES (%i, %i, %i, %i, %i, %i, '%s', '%s', %i, %i, '%s', %u, %i, %i, %i)",
        channel.UniqueID(), (channel.IsRadio() ? 1 :0), (channel.IsHidden() ? 1 : 0), (channel.IsUserSetIcon() ? 1 : 0), (channel.IsUserSetName() ? 1 : 0), (channel.IsLocked() ? 1 : 0),
        channel.IconPath().c_str(), channel.ChannelName().c_str(), 0, (channel.EPGEnabled() ? 1 : 0), channel.EPGScraper().c_str(), channel.LastWatched(), channel.ClientID(),
        channel.ChannelID(),
        channel.EpgID());
  }

  if (QueueInsertQuery(strQuery))
  {
    /* update the channel ID for new channels */
    if (channel.ChannelID() <= 0)
      channel.SetChannelID((int)m_pDS->lastinsertid());

    bReturn = true;
  }

  return bReturn;
}

bool CGUIWindowPVRChannels::OnContextButtonHide(CFileItem *item, CONTEXT_BUTTON button)
{
  bool bReturn = false;

  if (button == CONTEXT_BUTTON_HIDE)
  {
    CPVRChannel *channel = item->GetPVRChannelInfoTag();
    if (!channel || channel->IsRadio() != m_bRadio)
      return bReturn;

    CGUIDialogYesNo* pDialog = (CGUIDialogYesNo*)g_windowManager.GetWindow(WINDOW_DIALOG_YES_NO);
    if (!pDialog)
      return bReturn;

    pDialog->SetHeading(19039);
    pDialog->SetLine(0, "");
    pDialog->SetLine(1, channel->ChannelName());
    pDialog->SetLine(2, "");
    pDialog->DoModal();

    if (!pDialog->IsConfirmed())
      return bReturn;

    g_PVRManager.GetPlayingGroup(m_bRadio)->RemoveFromGroup(*channel);
    UpdateData();

    bReturn = true;
  }

  return bReturn;
}

bool CGUIWindowPVRCommon::PlayFile(CFileItem *item, bool bPlayMinimized /* = false */)
{
  if (item->m_bIsFolder)
  {
    return false;
  }

  if (item->GetPath() == g_application.CurrentFile())
  {
    CGUIMessage msg(GUI_MSG_FULLSCREEN, 0, m_parent->GetID());
    g_windowManager.SendMessage(msg);
    return true;
  }

  CMediaSettings::Get().SetVideoStartWindowed(bPlayMinimized);

  if (item->HasPVRRecordingInfoTag())
  {
    return PlayRecording(item, bPlayMinimized);
  }
  else
  {
    bool bSwitchSuccessful(false);

    CPVRChannel *channel = item->HasPVRChannelInfoTag() ? item->GetPVRChannelInfoTag() : NULL;

    if (channel && g_PVRManager.CheckParentalLock(*channel))
    {
      /* try a fast switch */
      if (channel && (g_PVRManager.IsPlayingTV() || g_PVRManager.IsPlayingRadio()) &&
         (channel->IsRadio() == g_PVRManager.IsPlayingRadio()) && g_application.m_pPlayer)
      {
        if (channel->StreamURL().IsEmpty())
          bSwitchSuccessful = g_application.m_pPlayer->SwitchChannel(*channel);
      }

      if (!bSwitchSuccessful)
      {
        CApplicationMessenger::Get().PlayFile(*item, false);
        return true;
      }
    }

    if (!bSwitchSuccessful)
    {
      CStdString msg;
      CStdString channelName = g_localizeStrings.Get(19029); // Channel
      if (channel)
        channelName = channel->ChannelName();
      msg.Format(g_localizeStrings.Get(19035).c_str(), channelName.c_str()); // CHANNELNAME could not be played. Check the log for details.

      CGUIDialogKaiToast::QueueNotification(CGUIDialogKaiToast::Error,
              g_localizeStrings.Get(19166), // PVR information
              msg);
      return false;
    }
  }

  return true;
}

bool CGUIWindowPVRCommon::ActionDeleteChannel(CFileItem *item)
{
  CPVRChannel *channel = item->GetPVRChannelInfoTag();

  /* check if the channel tag is valid */
  if (!channel || channel->ChannelNumber() <= 0)
    return false;

  /* show a confirmation dialog */
  CGUIDialogYesNo* pDialog = (CGUIDialogYesNo*) g_windowManager.GetWindow(WINDOW_DIALOG_YES_NO);
  if (pDialog)
    return false;
  pDialog->SetHeading(19039);
  pDialog->SetLine(0, "");
  pDialog->SetLine(1, channel->ChannelName());
  pDialog->SetLine(2, "");
  pDialog->DoModal();

  /* prompt for the user's confirmation */
  if (!pDialog->IsConfirmed())
    return false;

  g_PVRChannelGroups->GetGroupAll(channel->IsRadio())->RemoveFromGroup(*channel);
  UpdateData();

  return true;
}

void CGUIDialogPVRChannelsOSD::Update()
{
  // lock our display, as this window is rendered from the player thread
  g_graphicsContext.Lock();

  if (!IsObserving(g_infoManager))
    g_infoManager.RegisterObserver(this);

  m_viewControl.SetCurrentView(DEFAULT_VIEW_LIST);

  // empty the list ready for population
  Clear();

  CPVRChannel channel;
  g_PVRManager.GetCurrentChannel(channel);
  const CPVRChannelGroup *group = g_PVRManager.GetPlayingGroup(channel.IsRadio());

  if (group)
  {
    group->GetMembers(*m_vecItems);
    m_viewControl.SetItems(*m_vecItems);
    m_viewControl.SetSelectedItem(group->GetIndex(channel));
  }

  g_graphicsContext.Unlock();
}

CPVRTimerInfoTag *CPVRTimerInfoTag::CreateFromEpg(const CEpgInfoTag &tag)
{
  /* create a new timer */
  CPVRTimerInfoTag *newTag = new CPVRTimerInfoTag();
  if (!newTag)
  {
    CLog::Log(LOGERROR, "%s - couldn't create new timer", __FUNCTION__);
    return NULL;
  }

  /* check if a valid channel is set */
  CPVRChannel *channel = (CPVRChannel *) tag.ChannelTag();
  if (channel == NULL)
  {
    CLog::Log(LOGERROR, "%s - no channel set", __FUNCTION__);
    return NULL;
  }

  /* check if the epg end date is in the future */
  if (tag.EndAsLocalTime() < CDateTime::GetCurrentDateTime())
  {
    CLog::Log(LOGERROR, "%s - end time is in the past", __FUNCTION__);
    return NULL;
  }

  /* set the timer data */
  CDateTime newStart = tag.StartAsUTC();
  CDateTime newEnd = tag.EndAsUTC();
  newTag->m_iClientIndex      = -1;
  newTag->m_strTitle          = tag.Title().IsEmpty() ? channel->ChannelName() : tag.Title();
  newTag->m_iChannelNumber    = channel->ChannelNumber();
  newTag->m_iClientChannelUid = channel->UniqueID();
  newTag->m_iClientId         = channel->ClientID();
  newTag->m_bIsRadio          = channel->IsRadio();
  newTag->SetStartFromUTC(newStart);
  newTag->SetEndFromUTC(newEnd);

  if (tag.Plot().IsEmpty())
  {
    newTag->m_strSummary.Format("%s %s %s %s %s",
        newTag->StartAsLocalTime().GetAsLocalizedDate(),
        g_localizeStrings.Get(19159),
        newTag->StartAsLocalTime().GetAsLocalizedTime("", false),
        g_localizeStrings.Get(19160),
        newTag->EndAsLocalTime().GetAsLocalizedTime("", false));
  }
  else
  {
    newTag->m_strSummary = tag.Plot();
  }

  /* we might have a copy of the tag here, so get the real one from the pvrmanager */
  const CEpg *epgTable = channel->GetEPG();
  newTag->m_epgInfo = epgTable ? epgTable->GetTag(tag.UniqueBroadcastID(), tag.StartAsUTC()) : NULL;

  /* unused only for reference */
  newTag->m_strFileNameAndPath = "pvr://timers/new";

  return newTag;
}

bool CGUIWindowPVRChannels::OnContextButtonMove(CFileItem *item, CONTEXT_BUTTON button)
{
  bool bReturn = false;

  if (button == CONTEXT_BUTTON_MOVE)
  {
    CPVRChannel *channel = item->GetPVRChannelInfoTag();
    if (!channel || channel->IsRadio() != m_bRadio)
      return bReturn;

    CStdString strIndex;
    strIndex.Format("%i", channel->ChannelNumber());
    CGUIDialogNumeric::ShowAndGetNumber(strIndex, g_localizeStrings.Get(19052));
    int newIndex = atoi(strIndex.c_str());

    if (newIndex != channel->ChannelNumber())
    {
      g_PVRManager.GetPlayingGroup()->MoveChannel(channel->ChannelNumber(), newIndex);
      UpdateData();
    }

    bReturn = true;
  }

  return bReturn;
}

bool CPVRManager::ChannelUpDown(unsigned int *iNewChannelNumber, bool bPreview, bool bUp)
{
  bool bReturn = false;
  if (IsPlayingTV() || IsPlayingRadio())
  {
    CFileItem currentFile(g_application.CurrentFileItem());
    CPVRChannel *currentChannel = currentFile.GetPVRChannelInfoTag();
    CPVRChannelGroupPtr group = GetPlayingGroup(currentChannel->IsRadio());
    if (group)
    {
      CFileItemPtr newChannel = bUp ?
          group->GetByChannelUp(*currentChannel) :
          group->GetByChannelDown(*currentChannel);

      if (newChannel && newChannel->HasPVRChannelInfoTag() &&
          PerformChannelSwitch(*newChannel->GetPVRChannelInfoTag(), bPreview))
      {
        *iNewChannelNumber = newChannel->GetPVRChannelInfoTag()->ChannelNumber();
        bReturn = true;
      }
    }
  }

  return bReturn;
}

JSON_STATUS CPVROperations::ChannelSwitch(const CStdString &method, ITransportLayer *transport, IClient *client, const CVariant &parameterObject, CVariant &result)
{
  if (!g_PVRManager.IsStarted())
  {
    CLog::Log(LOGDEBUG, "JSONRPC: PVR not started");
    return FailedToExecute;
  }

  int iChannelId = (int)parameterObject["channelid"].asInteger();
  if (iChannelId <= 0)
    return InvalidParams;

  CLog::Log(LOGDEBUG, "JSONRPC: switch to channel '%d'", iChannelId);

  const CPVRChannel *channel = g_PVRChannelGroups->GetByChannelIDFromAll(iChannelId);
  if (channel == NULL)
    return InternalError;

  CPVRChannel currentChannel;
  if (g_PVRManager.GetCurrentChannel(currentChannel) && currentChannel.IsRadio() == channel->IsRadio())
    g_application.getApplicationMessenger().SendAction(CAction(ACTION_CHANNEL_SWITCH, (float)channel->ChannelNumber()));
  else
    g_application.getApplicationMessenger().MediaPlay(CFileItem(*channel));
  return ACK;
}

bool CPVRTimers::DeleteTimersOnChannel(const CPVRChannel &channel, bool bDeleteRepeating /* = true */, bool bCurrentlyActiveOnly /* = false */)
{
  bool bReturn = false;
  CSingleLock lock(m_critSection);

  for (unsigned int ptr = 0; ptr < size(); ptr++)
  {
    CPVRTimerInfoTag *timer = at(ptr);

    if (bCurrentlyActiveOnly &&
        (CDateTime::GetCurrentDateTime() < timer->StartAsLocalTime() ||
         CDateTime::GetCurrentDateTime() > timer->EndAsLocalTime()))
      continue;

    if (!bDeleteRepeating && timer->m_bIsRepeating)
      continue;

    if (timer->ChannelNumber() == channel.ChannelNumber() && timer->m_bIsRadio == channel.IsRadio())
    {
      bReturn = timer->DeleteFromClient(true) || bReturn;
      erase(begin() + ptr);
      ptr--;
    }
  }

  return bReturn;
}

void CGUIWindowPVRGuide::UpdateViewTimeline(void)
{
  CPVRChannel CurrentChannel;
  bool bGotCurrentChannel = g_PVRManager.GetCurrentChannel(&CurrentChannel);
  bool bRadio = bGotCurrentChannel ? CurrentChannel.IsRadio() : false;

  m_parent->SetLabel(m_iControlButton, g_localizeStrings.Get(19222) + ": " + g_localizeStrings.Get(19032));
  m_parent->SetLabel(CONTROL_LABELGROUP, g_localizeStrings.Get(19032));

  CSingleLock lock(m_critSection);

  UpdateEpgCache(bRadio, false);

  if (m_epgData->Size() <= 0)
    return;

  m_parent->m_guideGrid = (CGUIEPGGridContainer*) m_parent->GetControl(CONTROL_LIST_TIMELINE);
  if (m_parent->m_guideGrid)
  {
    CDateTime gridStart = CDateTime::GetCurrentDateTime();
    CDateTime firstDate = g_PVREpg->GetFirstEPGDate(bRadio);
    CDateTime lastDate = g_PVREpg->GetLastEPGDate(bRadio);

    /* copy over the cached epg data */
    for (int iEpgPtr = 0; iEpgPtr < m_epgData->Size(); iEpgPtr++)
      m_parent->m_vecItems->Add(m_epgData->Get(iEpgPtr));

    m_parent->m_guideGrid->SetStartEnd(firstDate > gridStart ? firstDate : gridStart, lastDate);
    m_parent->m_viewControl.SetCurrentView(CONTROL_LIST_TIMELINE);
  }
//m_viewControl.SetSelectedItem(m_iSelected_GUIDE);
}

bool CPVRClients::SwitchChannel(const CPVRChannel &channel)
{
  {
    CSingleLock lock(m_critSection);
    if (m_bIsSwitchingChannels)
    {
      CLog::Log(LOGDEBUG, "PVRClients - %s - can't switch to channel '%s'. waiting for the previous switch to complete", __FUNCTION__, channel.ChannelName().c_str());
      return false;
    }
    m_bIsSwitchingChannels = true;
  }

  bool bSwitchSuccessful(false);
  CPVRChannelPtr currentChannel;
  if (// no channel is currently playing
      !GetPlayingChannel(currentChannel) ||
      // different backend
      currentChannel->ClientID() != channel.ClientID() ||
      // different type
      currentChannel->IsRadio() != channel.IsRadio() ||
      // stream URL should always be opened as a new file
      !channel.StreamURL().IsEmpty() || !currentChannel->StreamURL().IsEmpty())
  {
    if (channel.StreamURL().IsEmpty())
    {
      CloseStream();
      bSwitchSuccessful = OpenStream(channel, true);
    }
    else
    {
      CFileItem m_currentFile(channel);
      CApplicationMessenger::Get().PlayFile(m_currentFile, false);
      bSwitchSuccessful = true;
    }
  }
  // same channel
  else if (currentChannel.get() && *currentChannel == channel)
  {
    bSwitchSuccessful = true;
  }
  else
  {
    PVR_CLIENT client;
    if (GetConnectedClient(channel.ClientID(), client))
      bSwitchSuccessful = client->SwitchChannel(channel);
  }

  {
    CSingleLock lock(m_critSection);
    m_bIsSwitchingChannels = false;
    if (bSwitchSuccessful)
      m_bIsValidChannelSettings = false;
  }

  if (!bSwitchSuccessful)
    CLog::Log(LOGERROR, "PVR - %s - cannot switch to channel '%s' on client '%d'",__FUNCTION__, channel.ChannelName().c_str(), channel.ClientID());

  return bSwitchSuccessful;
}