File indexing completed on 2024-05-12 04:52:18

 /*
  * dvbscan.h
  *
  * Copyright (C) 2008-2011 Christoph Pfister <christophpfister@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef DVBSCAN_H
 #define DVBSCAN_H
 
 #include "dvbchannel.h"
 
 class AtscVctSection;
 class DvbDescriptor;
 class DvbDevice;
 class DvbNitSection;
 class DvbPatEntry;
 class DvbPatSection;
 class DvbPmtSection;
 class DvbScanFilter;
 class DvbSdtEntry;
 class DvbSdtSection;
 
 class DvbPreviewChannel : public DvbChannel
 {
 public:
     DvbPreviewChannel() : snr(-1) { }
     ~DvbPreviewChannel() { }
 
     /*
      * assigned when reading PMT
      */
 
     // QString source;
     // DvbTransponder transponder;
     // int transportStreamId;
     // int pmtPid;
     // QByteArray pmtSectionData;
     // int serviceId;
     // int audioPid; // may be -1 (not present)
     // bool hasVideo;
 
     QString snr;
 
     /*
      * assigned when reading SDT
      */
 
     // QString name;
     // int networkId; // may be -1 (not present); ATSC meaning: source id
     // bool isScrambled;
     QString provider;
 
     /*
      * assigned when adding channel to the main list
      */
 
     // int number;
 };
 
 class DvbScan : public QObject
 {
     friend class DvbScanFilter;
     Q_OBJECT
 public:
     DvbScan(DvbDevice *device_, const QString &source_, const DvbTransponder &transponder_, bool useOtherNit);
     DvbScan(DvbDevice *device_, const QString &source_,
         const QList<DvbTransponder> &transponders_, bool useOtherNit);
     DvbScan(DvbDevice *device_, const QString &source_, const QString &autoScanSource, bool useOtherNit);
     ~DvbScan();
 
     void start();
 
 signals:
     void foundChannels(const QList<DvbPreviewChannel> &channels);
     void scanProgress(int percentage);
     void scanFinished();
 
 private slots:
     void deviceStateChanged();
 
 private:
     enum FilterType
     {
         PatFilter,
         PmtFilter,
         SdtFilter,
         VctFilter,
         NitFilter
     };
 
     enum State
     {
         ScanPat,
         ScanNit,
         ScanSdt,
         ScanPmt,
         ScanTune,
         ScanTuning
     };
 
     bool startFilter(int pid, FilterType type);
     void updateState();
 
     void processPat(const DvbPatSection &section);
     void processPmt(const DvbPmtSection &section, int pid);
     void processSdt(const DvbSdtSection &section);
     void processVct(const AtscVctSection &section);
     void processNit(const DvbNitSection &section);
     void processNitDescriptor(const DvbDescriptor &descriptor);
     void filterFinished(DvbScanFilter *filter);
 
     DvbDevice *device;
     QString source;
     DvbTransponder transponder;
     bool isLive;
     bool isAuto;
     bool useOtherNit;
 
     // only used if isLive is false
     QList<DvbTransponder> transponders;
     int transponderIndex;
 
     State state;
     QList<DvbPatEntry> patEntries;
     int patIndex;
     QList<DvbSdtEntry> sdtEntries;
     QList<DvbPreviewChannel> channels;
 
     DvbBackendDevice::Scale scale;
     float snr;
     int transportStreamId;
 
     QList<DvbScanFilter *> filters;
     int activeFilters;
 };
 
 #endif /* DVBSCAN_H */