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vdr/channels.h
Klaus Schmidinger 8849308cf9 Version 1.5.6 
- Fixed a buffer overflow in initializing the system character table (thanks
  to Marco Schlüßler).
- Updated the Russian OSD texts (thanks to Oleg Roitburd).
- Fixed handling single byte characters >0x7F in Utf8ToArray() (thanks to Udo
  Richter).
- Improved numdigits(), isnumber() and strreplace() (thanks to Tobias Bratfisch).
- Fixed clearing color buttons in the 'curses' skin (thanks to Udo Richter).
- Fixed a typo in the function name of cOsd::SetOsdPosition() and added a range
  check to it (thanks to Christoph Haubrich).
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
- Improved cControl::Launch() to keep 'control' from pointing to uninitialized
  memory (thanks to Rolf Ahrenberg).
- Made skipspace() an inline function (suggested by Tobias Bratfisch) and changed
  it to handle the most common case of 'no leading space' very fast, and avoid
  calling isspace(), which made the whole function a lot faster.
- Fixed detection of Premiere NVOD channel links (thanks to Markus Hahn).
- Added a table of the used trick speed values to the description of
  cDevice::TrickSpeed() (suggested by Martin Dauskardt).
- Added a missing 'P' to vdr.c's SHUTDOWNCANCELROMPT macro (reported by Marco
  Schlüßler).
2007-07-22 18:00:00 +02:00

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/*
* channels.h: Channel handling
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: channels.h 1.44 2007/07/21 14:58:36 kls Exp $
*/
#ifndef __CHANNELS_H
#define __CHANNELS_H
#include "config.h"
#include "sources.h"
#include "thread.h"
#include "tools.h"
#define ISTRANSPONDER(f1, f2) (abs((f1) - (f2)) < 4) //XXX
#define CHANNELMOD_NONE 0x00
#define CHANNELMOD_ALL 0xFF
#define CHANNELMOD_NAME 0x01
#define CHANNELMOD_PIDS 0x02
#define CHANNELMOD_ID 0x04
#define CHANNELMOD_CA 0x10
#define CHANNELMOD_TRANSP 0x20
#define CHANNELMOD_LANGS 0x40
#define CHANNELMOD_RETUNE (CHANNELMOD_PIDS | CHANNELMOD_CA | CHANNELMOD_TRANSP)
#define CHANNELSMOD_NONE 0
#define CHANNELSMOD_AUTO 1
#define CHANNELSMOD_USER 2
#define MAXAPIDS 32 // audio
#define MAXDPIDS 16 // dolby (AC3 + DTS)
#define MAXSPIDS 8 // subtitles
#define MAXCAIDS 8 // conditional access
#define MAXLANGCODE1 4 // a 3 letter language code, zero terminated
#define MAXLANGCODE2 8 // up to two 3 letter language codes, separated by '+' and zero terminated
#define CA_FTA 0x0000
#define CA_DVB_MIN 0x0001
#define CA_DVB_MAX 0x000F
#define CA_USER_MIN 0x0010
#define CA_USER_MAX 0x00FF
#define CA_ENCRYPTED_MIN 0x0100
#define CA_ENCRYPTED_MAX 0xFFFF
struct tChannelParameterMap {
int userValue;
int driverValue;
};
//XXX into cChannel???
int MapToUser(int Value, const tChannelParameterMap *Map);
int MapToDriver(int Value, const tChannelParameterMap *Map);
int UserIndex(int Value, const tChannelParameterMap *Map);
int DriverIndex(int Value, const tChannelParameterMap *Map);
extern const tChannelParameterMap InversionValues[];
extern const tChannelParameterMap BandwidthValues[];
extern const tChannelParameterMap CoderateValues[];
extern const tChannelParameterMap ModulationValues[];
extern const tChannelParameterMap TransmissionValues[];
extern const tChannelParameterMap GuardValues[];
extern const tChannelParameterMap HierarchyValues[];
struct tChannelID {
private:
int source;
int nid; ///< actually the "original" network id
int tid;
int sid;
int rid;
public:
tChannelID(void) { source = nid = tid = sid = rid = 0; }
tChannelID(int Source, int Nid, int Tid, int Sid, int Rid = 0) { source = Source; nid = Nid; tid = Tid; sid = Sid; rid = Rid; }
bool operator== (const tChannelID &arg) const { return source == arg.source && nid == arg.nid && tid == arg.tid && sid == arg.sid && rid == arg.rid; }
bool Valid(void) const { return (nid || tid) && sid; } // rid is optional and source may be 0//XXX source may not be 0???
tChannelID &ClrRid(void) { rid = 0; return *this; }
tChannelID &ClrPolarization(void);
int Source(void) { return source; }
int Nid(void) { return nid; }
int Tid(void) { return tid; }
int Sid(void) { return sid; }
int Rid(void) { return rid; }
static tChannelID FromString(const char *s);
cString ToString(void) const;
static const tChannelID InvalidID;
};
class cChannel;
class cLinkChannel : public cListObject {
private:
cChannel *channel;
public:
cLinkChannel(cChannel *Channel) { channel = Channel; }
cChannel *Channel(void) { return channel; }
};
class cLinkChannels : public cList<cLinkChannel> {
};
class cSchedule;
class cChannel : public cListObject {
friend class cSchedules;
friend class cMenuEditChannel;
private:
static cString ToText(const cChannel *Channel);
char *name;
char *shortName;
char *provider;
char *portalName;
int __BeginData__;
int frequency; // MHz
int source;
int srate;
int vpid;
int ppid;
int apids[MAXAPIDS + 1]; // list is zero-terminated
char alangs[MAXAPIDS][MAXLANGCODE2];
int dpids[MAXDPIDS + 1]; // list is zero-terminated
char dlangs[MAXDPIDS][MAXLANGCODE2];
int spids[MAXSPIDS + 1]; // list is zero-terminated
char slangs[MAXSPIDS][MAXLANGCODE2];
int tpid;
int caids[MAXCAIDS + 1]; // list is zero-terminated
int nid;
int tid;
int sid;
int rid;
int number; // Sequence number assigned on load
bool groupSep;
char polarization;
int inversion;
int bandwidth;
int coderateH;
int coderateL;
int modulation;
int transmission;
int guard;
int hierarchy;
int __EndData__;
int modification;
mutable const cSchedule *schedule;
cLinkChannels *linkChannels;
cChannel *refChannel;
cString ParametersToString(void) const;
bool StringToParameters(const char *s);
public:
cChannel(void);
cChannel(const cChannel &Channel);
~cChannel();
cChannel& operator= (const cChannel &Channel);
cString ToText(void) const;
bool Parse(const char *s);
bool Save(FILE *f);
const char *Name(void) const { return name; }
const char *ShortName(bool OrName = false) const { return (OrName && isempty(shortName)) ? name : shortName; }
const char *Provider(void) const { return provider; }
const char *PortalName(void) const { return portalName; }
int Frequency(void) const { return frequency; } ///< Returns the actual frequency, as given in 'channels.conf'
int Transponder(void) const; ///< Returns the transponder frequency in MHz, plus the polarization in case of sat
static int Transponder(int Frequency, char Polarization); ///< builds the transponder from the given Frequency and Polarization
int Source(void) const { return source; }
int Srate(void) const { return srate; }
int Vpid(void) const { return vpid; }
int Ppid(void) const { return ppid; }
const int *Apids(void) const { return apids; }
const int *Dpids(void) const { return dpids; }
const int *Spids(void) const { return spids; }
int Apid(int i) const { return (0 <= i && i < MAXAPIDS) ? apids[i] : 0; }
int Dpid(int i) const { return (0 <= i && i < MAXDPIDS) ? dpids[i] : 0; }
int Spid(int i) const { return (0 <= i && i < MAXSPIDS) ? spids[i] : 0; }
const char *Alang(int i) const { return (0 <= i && i < MAXAPIDS) ? alangs[i] : ""; }
const char *Dlang(int i) const { return (0 <= i && i < MAXDPIDS) ? dlangs[i] : ""; }
const char *Slang(int i) const { return (0 <= i && i < MAXSPIDS) ? slangs[i] : ""; }
int Tpid(void) const { return tpid; }
const int *Caids(void) const { return caids; }
int Ca(int Index = 0) const { return Index < MAXCAIDS ? caids[Index] : 0; }
int Nid(void) const { return nid; }
int Tid(void) const { return tid; }
int Sid(void) const { return sid; }
int Rid(void) const { return rid; }
int Number(void) const { return number; }
void SetNumber(int Number) { number = Number; }
bool GroupSep(void) const { return groupSep; }
char Polarization(void) const { return polarization; }
int Inversion(void) const { return inversion; }
int Bandwidth(void) const { return bandwidth; }
int CoderateH(void) const { return coderateH; }
int CoderateL(void) const { return coderateL; }
int Modulation(void) const { return modulation; }
int Transmission(void) const { return transmission; }
int Guard(void) const { return guard; }
int Hierarchy(void) const { return hierarchy; }
const cLinkChannels* LinkChannels(void) const { return linkChannels; }
const cChannel *RefChannel(void) const { return refChannel; }
bool IsCable(void) const { return cSource::IsCable(source); }
bool IsSat(void) const { return cSource::IsSat(source); }
bool IsTerr(void) const { return cSource::IsTerr(source); }
tChannelID GetChannelID(void) const { return tChannelID(source, nid, (nid || tid) ? tid : Transponder(), sid, rid); }
bool HasTimer(void) const;
int Modification(int Mask = CHANNELMOD_ALL);
void CopyTransponderData(const cChannel *Channel);
bool SetSatTransponderData(int Source, int Frequency, char Polarization, int Srate, int CoderateH);
bool SetCableTransponderData(int Source, int Frequency, int Modulation, int Srate, int CoderateH);
bool SetTerrTransponderData(int Source, int Frequency, int Bandwidth, int Modulation, int Hierarchy, int CodeRateH, int CodeRateL, int Guard, int Transmission);
void SetId(int Nid, int Tid, int Sid, int Rid = 0);
void SetName(const char *Name, const char *ShortName, const char *Provider);
void SetPortalName(const char *PortalName);
void SetPids(int Vpid, int Ppid, int *Apids, char ALangs[][MAXLANGCODE2], int *Dpids, char DLangs[][MAXLANGCODE2], int Tpid);
void SetCaIds(const int *CaIds); // list must be zero-terminated
void SetCaDescriptors(int Level);
void SetLinkChannels(cLinkChannels *LinkChannels);
void SetRefChannel(cChannel *RefChannel);
};
class cChannels : public cRwLock, public cConfig<cChannel> {
private:
int maxNumber;
int modified;
int beingEdited;
cHash<cChannel> channelsHashSid;
void DeleteDuplicateChannels(void);
public:
cChannels(void);
bool Load(const char *FileName, bool AllowComments = false, bool MustExist = false);
void HashChannel(cChannel *Channel);
void UnhashChannel(cChannel *Channel);
int GetNextGroup(int Idx); // Get next channel group
int GetPrevGroup(int Idx); // Get previous channel group
int GetNextNormal(int Idx); // Get next normal channel (not group)
int GetPrevNormal(int Idx); // Get previous normal channel (not group)
void ReNumber(void); // Recalculate 'number' based on channel type
cChannel *GetByNumber(int Number, int SkipGap = 0);
cChannel *GetByServiceID(int Source, int Transponder, unsigned short ServiceID);
cChannel *GetByChannelID(tChannelID ChannelID, bool TryWithoutRid = false, bool TryWithoutPolarization = false);
cChannel *GetByTransponderID(tChannelID ChannelID);
int BeingEdited(void) { return beingEdited; }
void IncBeingEdited(void) { beingEdited++; }
void DecBeingEdited(void) { beingEdited--; }
bool HasUniqueChannelID(cChannel *NewChannel, cChannel *OldChannel = NULL);
bool SwitchTo(int Number);
int MaxNumber(void) { return maxNumber; }
void SetModified(bool ByUser = false);
int Modified(void);
///< Returns 0 if no channels have been modified, 1 if an automatic
///< modification has been made, and 2 if the user has made a modification.
///< Calling this function resets the 'modified' flag to 0.
cChannel *NewChannel(const cChannel *Transponder, const char *Name, const char *ShortName, const char *Provider, int Nid, int Tid, int Sid, int Rid = 0);
};
extern cChannels Channels;
cString ChannelString(const cChannel *Channel, int Number);
#endif //__CHANNELS_H
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