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vdr/recording.h

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/*
* recording.h: Recording file handling
*
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* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: recording.h 1.51 2006/02/18 16:03:40 kls Exp $
*/
#ifndef __RECORDING_H
#define __RECORDING_H
#include <time.h>
#include "channels.h"
#include "config.h"
#include "epg.h"
#include "thread.h"
#include "timers.h"
#include "tools.h"
extern bool VfatFileSystem;
void RemoveDeletedRecordings(void);
void AssertFreeDiskSpace(int Priority = 0, bool Force = false);
///< The special Priority value -1 means that we shall get rid of any
///< deleted recordings faster than normal (because we're cutting).
///< If Force is true, the check will be done even if the timeout
///< hasn't expired yet.
class cResumeFile {
private:
char *fileName;
public:
cResumeFile(const char *FileName);
~cResumeFile();
int Read(void);
bool Save(int Index);
void Delete(void);
};
class cRecordingInfo {
friend class cRecording;
private:
tChannelID channelID;
const cEvent *event;
cEvent *ownEvent;
cRecordingInfo(const cChannel *Channel = NULL, const cEvent *Event = NULL);
void SetData(const char *Title, const char *ShortText, const char *Description);
public:
~cRecordingInfo();
const char *Title(void) const { return event->Title(); }
const char *ShortText(void) const { return event->ShortText(); }
const char *Description(void) const { return event->Description(); }
const cComponents *Components(void) const { return event->Components(); }
bool Read(FILE *f);
bool Write(FILE *f, const char *Prefix = "") const;
};
class cRecording : public cListObject {
friend class cRecordings;
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private:
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mutable int resume;
mutable char *titleBuffer;
mutable char *sortBuffer;
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mutable char *fileName;
mutable char *name;
mutable int fileSizeMB;
cRecordingInfo *info;
static char *StripEpisodeName(char *s);
char *SortName(void) const;
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int GetResume(void) const;
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public:
time_t start;
int priority;
int lifetime;
time_t deleted;
cRecording(cTimer *Timer, const cEvent *Event);
cRecording(const char *FileName);
virtual ~cRecording();
virtual int Compare(const cListObject &ListObject) const;
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const char *Name(void) const { return name; }
const char *FileName(void) const;
const char *Title(char Delimiter = ' ', bool NewIndicator = false, int Level = -1) const;
const cRecordingInfo *Info(void) const { return info; }
const char *PrefixFileName(char Prefix);
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int HierarchyLevels(void) const;
void ResetResume(void) const;
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bool IsNew(void) const { return GetResume() <= 0; }
bool IsEdited(void) const;
bool WriteInfo(void);
bool Delete(void);
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// Changes the file name so that it will no longer be visible in the "Recordings" menu
// Returns false in case of error
bool Remove(void);
// Actually removes the file from the disk
// Returns false in case of error
};
class cRecordings : public cList<cRecording>, public cThread {
private:
static char *updateFileName;
bool deleted;
time_t lastUpdate;
int state;
const char *UpdateFileName(void);
void Refresh(bool Foreground = false);
void ScanVideoDir(const char *DirName, bool Foreground = false, int LinkLevel = 0);
protected:
void Action(void);
public:
cRecordings(bool Deleted = false);
virtual ~cRecordings();
bool Load(void) { return Update(true); }
///< Loads the current list of recordings and returns true if there
///< is anything in it (for compatibility with older plugins - use
///< Update(true) instead).
bool Update(bool Wait = false);
///< Triggers an update of the list of recordings, which will run
///< as a separate thread if Wait is false. If Wait is true, the
///< function returns only after the update has completed.
///< Returns true if Wait is true and there is anyting in the list
///< of recordings, false otherwise.
void TouchUpdate(void);
///< Touches the '.update' file in the video directory, so that other
///< instances of VDR that access the same video directory can be triggered
///< to update their recordings list.
bool NeedsUpdate(void);
void ChangeState(void) { state++; }
bool StateChanged(int &State);
void ResetResume(const char *ResumeFileName = NULL);
cRecording *GetByName(const char *FileName);
void AddByName(const char *FileName);
void DelByName(const char *FileName);
int TotalFileSizeMB(void); ///< Only for deleted recordings!
};
extern cRecordings Recordings;
extern cRecordings DeletedRecordings;
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class cMark : public cListObject {
public:
int position;
char *comment;
cMark(int Position = 0, const char *Comment = NULL);
virtual ~cMark();
cString ToText(void);
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bool Parse(const char *s);
bool Save(FILE *f);
};
class cMarks : public cConfig<cMark> {
public:
bool Load(const char *RecordingFileName);
void Sort(void);
cMark *Add(int Position);
cMark *Get(int Position);
cMark *GetPrev(int Position);
cMark *GetNext(int Position);
};
#define RUC_BEFORERECORDING "before"
#define RUC_AFTERRECORDING "after"
#define RUC_EDITEDRECORDING "edited"
class cRecordingUserCommand {
private:
static const char *command;
public:
static void SetCommand(const char *Command) { command = Command; }
static void InvokeCommand(const char *State, const char *RecordingFileName);
};
//XXX+
#define FRAMESPERSEC 25
// The maximum size of a single frame (up to HDTV 1920x1080):
#define MAXFRAMESIZE KILOBYTE(512)
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// The maximum file size is limited by the range that can be covered
// with 'int'. 4GB might be possible (if the range is considered
// 'unsigned'), 2GB should be possible (even if the range is considered
// 'signed'), so let's use 2000MB for absolute safety (the actual file size
// may be slightly higher because we stop recording only before the next
// 'I' frame, to have a complete Group Of Pictures):
#define MAXVIDEOFILESIZE 2000 // MB
#define MINVIDEOFILESIZE 100 // MB
class cIndexFile {
private:
struct tIndex { int offset; uchar type; uchar number; short reserved; };
int f;
char *fileName;
int size, last;
tIndex *index;
cResumeFile resumeFile;
cMutex mutex;
bool CatchUp(int Index = -1);
public:
cIndexFile(const char *FileName, bool Record);
~cIndexFile();
bool Ok(void) { return index != NULL; }
bool Write(uchar PictureType, uchar FileNumber, int FileOffset);
bool Get(int Index, uchar *FileNumber, int *FileOffset, uchar *PictureType = NULL, int *Length = NULL);
int GetNextIFrame(int Index, bool Forward, uchar *FileNumber = NULL, int *FileOffset = NULL, int *Length = NULL, bool StayOffEnd = false);
int Get(uchar FileNumber, int FileOffset);
int Last(void) { CatchUp(); return last; }
int GetResume(void) { return resumeFile.Read(); }
bool StoreResume(int Index) { return resumeFile.Save(Index); }
};
class cFileName {
private:
cUnbufferedFile *file;
int fileNumber;
char *fileName, *pFileNumber;
bool record;
bool blocking;
public:
cFileName(const char *FileName, bool Record, bool Blocking = false);
~cFileName();
const char *Name(void) { return fileName; }
int Number(void) { return fileNumber; }
cUnbufferedFile *Open(void);
void Close(void);
cUnbufferedFile *SetOffset(int Number, int Offset = 0);
cUnbufferedFile *NextFile(void);
};
cString IndexToHMSF(int Index, bool WithFrame = false);
// Converts the given index to a string, optionally containing the frame number.
int HMSFToIndex(const char *HMSF);
// Converts the given string (format: "hh:mm:ss.ff") to an index.
int SecondsToFrames(int Seconds); //XXX+ ->player???
// Returns the number of frames corresponding to the given number of seconds.
int ReadFrame(cUnbufferedFile *f, uchar *b, int Length, int Max);
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char *ExchangeChars(char *s, bool ToFileSystem);
// Exchanges the characters in the given string to or from a file system
// specific representation (depending on ToFileSystem). The given string will
// be modified and may be reallocated if more space is needed. The return
// value points to the resulting string, which may be different from s.
#endif //__RECORDING_H