File indexing completed on 2024-05-12 04:52:21

 /*
  * dvbtransponder.h
  *
  * Copyright (C) 2007-2011 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 DVBTRANSPONDER_H
 #define DVBTRANSPONDER_H
 
 #include <string.h>
 
 class QDataStream;
 class QString;
 class DvbTransponder;
 
 class DvbTransponderBase
 {
 public:
     enum TransmissionType {
         Invalid = 7,
         DvbC = 0,
         DvbS = 1,
         DvbS2 = 4,
         DvbT = 2,
         DvbT2 = 6,
         Atsc = 3,
         IsdbT = 5,
     };
 
     enum FecRate {
         FecNone = 0,
         Fec1_2 = 1,
         Fec1_3 = 10,
         Fec1_4 = 11,
         Fec2_3 = 2,
         Fec2_5 = 12,
         Fec3_4 = 3,
         Fec3_5 = 13,
         Fec4_5 = 4,
         Fec5_6 = 5,
         Fec6_7 = 6,
         Fec7_8 = 7,
         Fec8_9 = 8,
         Fec9_10 = 14,
         FecAuto = 9
     };
 
 protected:
     TransmissionType transmissionType : 8;
 };
 
 class DvbCTransponder : public DvbTransponderBase
 {
 public:
     enum Modulation {
         Qam16 = 0,
         Qam32 = 1,
         Qam64 = 2,
         Qam128 = 3,
         Qam256 = 4,
         ModulationAuto = 5
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Modulation modulation : 8;
     FecRate fecRate : 8;
     int frequency; // Hz
     int symbolRate; // symbols per second
 };
 
 class DvbSTransponder : public DvbTransponderBase
 {
 public:
     enum Polarization {
         Horizontal = 0,
         Vertical = 1,
         CircularLeft = 2,
         CircularRight = 3,
         Off = 4,
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Polarization polarization : 8;
     FecRate fecRate : 8;
     int frequency; // kHz
     int symbolRate; // symbols per second
 };
 
 class DvbS2Transponder : public DvbSTransponder
 {
 public:
     enum Modulation {
         Qpsk = 0,
         Psk8 = 1,
         Apsk16 = 2,
         Apsk32 = 3,
         ModulationAuto = 4
     };
 
     enum RollOff {
         RollOff20 = 0,
         RollOff25 = 1,
         RollOff35 = 2,
         RollOffAuto = 3
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Modulation modulation : 8;
     RollOff rollOff : 8;
     // FIXME: add stream ID
 };
 
 class DvbTTransponder : public DvbTransponderBase
 {
 public:
     enum Bandwidth {
         Bandwidth6MHz = 0,
         Bandwidth7MHz = 1,
         Bandwidth8MHz = 2,
         Bandwidth5MHz = 3,  // Used only on DVB-T2, but present on Terrestrial descriptor
         BandwidthAuto = 4
     };
 
     enum Modulation {
         Qpsk = 0,
         Qam16 = 1,
         Qam64 = 2,
         ModulationAuto = 3
     };
 
     enum TransmissionMode {
         TransmissionMode2k = 0,
         TransmissionMode4k = 3,
         TransmissionMode8k = 1,
         TransmissionModeAuto = 2
     };
 
     enum GuardInterval {
         GuardInterval1_4 = 0,
         GuardInterval1_8 = 1,
         GuardInterval1_16 = 2,
         GuardInterval1_32 = 3,
         GuardIntervalAuto = 4
     };
 
     enum Hierarchy {
         HierarchyNone = 0,
         Hierarchy1 = 1,
         Hierarchy2 = 2,
         Hierarchy4 = 3,
         HierarchyAuto = 4
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Bandwidth bandwidth : 8;
     Modulation modulation : 8;
     FecRate fecRateHigh : 8; // high priority stream
     FecRate fecRateLow : 8; // low priority stream
     TransmissionMode transmissionMode : 8;
     GuardInterval guardInterval : 8;
     Hierarchy hierarchy : 8;
     int frequency; // Hz
 };
 
 class DvbT2Transponder : public DvbTransponderBase
 {
 public:
     enum Bandwidth {
         Bandwidth6MHz = 0,
         Bandwidth7MHz = 1,
         Bandwidth8MHz = 2,
         Bandwidth5MHz = 3,
         Bandwidth1_7MHz = 4,
         Bandwidth10MHz = 5,
         BandwidthAuto = 6
     };
 
     enum Modulation {
         Qpsk = 0,
         Qam16 = 1,
         Qam64 = 2,
         Qam256 = 3,
         ModulationAuto = 4
     };
 
     enum TransmissionMode {
         TransmissionMode1k = 0,
         TransmissionMode2k = 1,
         TransmissionMode4k = 2,
         TransmissionMode8k = 3,
         TransmissionMode16k = 4,
         TransmissionMode32k = 5,
         TransmissionModeAuto = 6
     };
 
     enum GuardInterval {
         GuardInterval1_4 = 0,
         GuardInterval19_128 = 1,
         GuardInterval1_8 = 2,
         GuardInterval19_256 = 3,
         GuardInterval1_16 = 4,
         GuardInterval1_32 = 5,
         GuardInterval1_128 = 6,
         GuardIntervalAuto = 7
     };
 
     enum Hierarchy {
         HierarchyNone = 0,
         Hierarchy1 = 1,
         Hierarchy2 = 2,
         Hierarchy4 = 3,
         HierarchyAuto = 4
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Bandwidth bandwidth : 8;
     Modulation modulation : 8;
     FecRate fecRateHigh : 8; // high priority stream
     FecRate fecRateLow : 8; // low priority stream
     TransmissionMode transmissionMode : 8;
     GuardInterval guardInterval : 8;
     Hierarchy hierarchy : 8;
     int streamId;   // called as PLP at the DVB-T2 standard specs
     int frequency; // Hz
 };
 
 class AtscTransponder : public DvbTransponderBase
 {
 public:
     enum Modulation {
         Qam64 = 0,
         Qam256 = 1,
         Vsb8 = 2,
         Vsb16 = 3,
         ModulationAuto = 4
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Modulation modulation : 8;
     int frequency; // Hz
 };
 
 class IsdbTTransponder : public DvbTransponderBase
 {
 public:
     enum Bandwidth {
         Bandwidth6MHz = 0,
         Bandwidth7MHz = 1,
         Bandwidth8MHz = 2,
     };
 
     enum Modulation {
         Qpsk = 0,
         Dqpsk = 1,
         Qam16 = 2,
         Qam64 = 3,
         ModulationAuto = 4
     };
 
     enum TransmissionMode {
         TransmissionMode2k = 0,
         TransmissionMode4k = 1,
         TransmissionMode8k = 2,
         TransmissionModeAuto = 3,
     };
 
     enum GuardInterval {
         GuardInterval1_4 = 0,
         GuardInterval1_8 = 1,
         GuardInterval1_16 = 2,
         GuardInterval1_32 = 3,
         GuardIntervalAuto = 4
     };
 
     enum Interleaving {
         I_0 = 0,
         I_1 = 1,
         I_2 = 2,
         I_4 = 4,
         I_8 = 8,
         I_16 = 16,  /* Only on SB */
         I_AUTO = 3
     };
 
     enum PartialReception {
         PR_disabled = 0,
         PR_enabled = 1,
         PR_AUTO = 2
     };
 
     enum SoundBroadcasting {
         SB_disabled = 0,
         SB_enabled = 1,
         SB_AUTO = 2
     };
 
     void readTransponder(QDataStream &stream);
     bool fromString(const QString &string);
     QString toString() const;
     bool corresponds(const DvbTransponder &transponder) const;
 
     Bandwidth bandwidth : 8;
     TransmissionMode transmissionMode : 8;
     GuardInterval guardInterval : 8;
     PartialReception partialReception : 2;
     SoundBroadcasting soundBroadcasting : 2;
     int subChannelId;
     int sbSegmentCount;
     int sbSegmentIdx;
 
     /* Per-Layer parameters */
     bool layerEnabled[3];
     FecRate fecRate[3];
     Modulation modulation[3];
     int segmentCount[3];
     Interleaving interleaving[3];
 
     int frequency; // Hz
 };
 
 class DvbTransponder
 {
 public:
     DvbTransponder()
     {
         data.transmissionType = DvbTransponderBase::Invalid;
     }
 
     explicit DvbTransponder(DvbTransponderBase::TransmissionType transmissionType_)
     {
         memset(&data, 0, sizeof(data));
         data.transmissionType = transmissionType_;
     }
 
     ~DvbTransponder() { }
 
     DvbTransponderBase::TransmissionType getTransmissionType() const
     {
         return data.transmissionType;
     }
 
     void setTransmissionType(const DvbTransponderBase::TransmissionType type)
     {
         data.transmissionType = type;
     }
 
     bool isValid() const
     {
         return (data.transmissionType != DvbTransponderBase::Invalid);
     }
 
     int frequency();
 
     static DvbTransponder fromString(const QString &string); // linuxtv scan file format
     QString toString() const; // linuxtv scan file format
 
     /*
      * corresponding in this context means that both tuning parameters will lead to the same
      * transponder; note the tuning parameters don't have to be equal, it's sufficient that
      * they can't coexist at the same time (for example the frequency difference between two
      * channels in the same network has to be big enough because of bandwidth)
      */
 
     bool corresponds(const DvbTransponder &transponder) const;
 
     template<class T> const T *as() const
     {
         if (data.transmissionType == transmissionTypeFor(static_cast<T *>(NULL))) {
             return reinterpret_cast<const T *>(&data);
         }
 
         return NULL;
     }
 
     template<class T> T *as()
     {
         if (data.transmissionType == transmissionTypeFor(static_cast<T *>(NULL))) {
             return reinterpret_cast<T *>(&data);
         }
 
         return NULL;
     }
 
 private:
     DvbTransponderBase::TransmissionType transmissionTypeFor(const DvbCTransponder *) const
     {
         return DvbTransponderBase::DvbC;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const DvbSTransponder *) const
     {
         return DvbTransponderBase::DvbS;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const DvbS2Transponder *) const
     {
         return DvbTransponderBase::DvbS2;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const DvbTTransponder *) const
     {
         return DvbTransponderBase::DvbT;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const DvbT2Transponder *) const
     {
         return DvbTransponderBase::DvbT2;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const AtscTransponder *) const
     {
         return DvbTransponderBase::Atsc;
     }
 
     DvbTransponderBase::TransmissionType transmissionTypeFor(const IsdbTTransponder *) const
     {
         return DvbTransponderBase::IsdbT;
     }
     union {
         DvbTransponderBase::TransmissionType transmissionType : 8;
         DvbCTransponder dvbCTransponder;
         DvbSTransponder dvbSTransponder;
         DvbS2Transponder dvbS2Transponder;
         DvbTTransponder dvbTTransponder;
         DvbT2Transponder dvbT2Transponder;
         AtscTransponder atscTransponder;
         IsdbTTransponder isdbTTransponder;
     } data;
 };
 
 #endif /* DVBTRANSPONDER_H */