summaryrefslogtreecommitdiff
path: root/recording.h
blob: 3b00c71bc4540e2ede63ba1f3143d1ceaeddde50 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
/*
 * recording.h: Recording file handling
 *
 * See the main source file 'vdr.c' for copyright information and
 * how to reach the author.
 *
 * $Id: recording.h 3.1 2013/10/10 12:08:15 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"

#define FOLDERDELIMCHAR '~'

extern int DirectoryPathMax;
extern int DirectoryNameMax;
extern bool DirectoryEncoding;
extern int InstanceId;

enum eRecordingUsage {
  ruNone     = 0x0000, // the recording is currently unused
  ruTimer    = 0x0001, // the recording is currently written to by a timer
  ruReplay   = 0x0002, // the recording is being replayed
  // mutually exclusive:
  ruCut      = 0x0004, // the recording is being cut
  ruMove     = 0x0008, // the recording is being moved
  ruCopy     = 0x0010, // the recording is being copied
  // mutually exclusive:
  ruSrc      = 0x0020, // the recording is the source of a cut, move or copy process
  ruDst      = 0x0040, // the recording is the destination of a cut, move or copy process
  //
  ruPending  = 0x0080, // the recording is pending a cut, move or copy process
  };

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;
  bool isPesRecording;
public:
  cResumeFile(const char *FileName, bool IsPesRecording);
  ~cResumeFile();
  int Read(void);
  bool Save(int Index);
  void Delete(void);
  };

class cRecordingInfo {
  friend class cRecording;
private:
  tChannelID channelID;
  char *channelName;
  const cEvent *event;
  cEvent *ownEvent;
  char *aux;
  double framesPerSecond;
  int priority;
  int lifetime;
  char *fileName;
  cRecordingInfo(const cChannel *Channel = NULL, const cEvent *Event = NULL);
  bool Read(FILE *f);
  void SetData(const char *Title, const char *ShortText, const char *Description);
  void SetAux(const char *Aux);
public:
  cRecordingInfo(const char *FileName);
  ~cRecordingInfo();
  tChannelID ChannelID(void) const { return channelID; }
  const char *ChannelName(void) const { return channelName; }
  const cEvent *GetEvent(void) const { return event; }
  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(); }
  const char *Aux(void) const { return aux; }
  double FramesPerSecond(void) const { return framesPerSecond; }
  void SetFramesPerSecond(double FramesPerSecond);
  void SetFileName(const char *FileName);
  bool Write(FILE *f, const char *Prefix = "") const;
  bool Read(void);
  bool Write(void) const;
  };

class cRecording : public cListObject {
  friend class cRecordings;
private:
  mutable int resume;
  mutable char *titleBuffer;
  mutable char *sortBufferName;
  mutable char *sortBufferTime;
  mutable char *fileName;
  mutable char *name;
  mutable int fileSizeMB;
  mutable int numFrames;
  int channel;
  int instanceId;
  bool isPesRecording;
  mutable int isOnVideoDirectoryFileSystem; // -1 = unknown, 0 = no, 1 = yes
  double framesPerSecond;
  cRecordingInfo *info;
  cRecording(const cRecording&); // can't copy cRecording
  cRecording &operator=(const cRecording &); // can't assign cRecording
  static char *StripEpisodeName(char *s, bool Strip);
  char *SortName(void) const;
  void ClearSortName(void);
  int GetResume(void) const;
  time_t start;
  int priority;
  int lifetime;
  time_t deleted;
public:
  cRecording(cTimer *Timer, const cEvent *Event);
  cRecording(const char *FileName);
  virtual ~cRecording();
  time_t Start(void) const { return start; }
  int Priority(void) const { return priority; }
  int Lifetime(void) const { return lifetime; }
  time_t Deleted(void) const { return deleted; }
  virtual int Compare(const cListObject &ListObject) const;
  bool IsInPath(const char *Path);
       ///< Returns true if this recording is stored anywhere under the given Path.
       ///< If Path is NULL or an empty string, the entire video directory is checked.
  cString Folder(void) const;
       ///< Returns the name of the folder this recording is stored in (without the
       ///< video directory). For use in menus etc.
  cString BaseName(void) const;
       ///< Returns the base name of this recording (without the
       ///< video directory and folder). For use in menus etc.
  const char *Name(void) const { return name; }
       ///< Returns the full name of the recording (without the video directory.
       ///< For use in menus etc.
  const char *FileName(void) const;
       ///< Returns the full path name to the recording directory, including the
       ///< video directory and the actual '*.rec'. For disk file access use.
  const char *Title(char Delimiter = ' ', bool NewIndicator = false, int Level = -1) const;
  const cRecordingInfo *Info(void) const { return info; }
  const char *PrefixFileName(char Prefix);
  int HierarchyLevels(void) const;
  void ResetResume(void) const;
  double FramesPerSecond(void) const { return framesPerSecond; }
  int NumFrames(void) const;
       ///< Returns the number of frames in this recording.
       ///< If the number of frames is unknown, -1 will be returned.
  int LengthInSeconds(void) const;
       ///< Returns the length (in seconds) of this recording, or -1 in case of error.
  int FileSizeMB(void) const;
       ///< Returns the total file size of this recording (in MB), or -1 if the file
       ///< size is unknown.
  bool IsNew(void) const { return GetResume() <= 0; }
  bool IsEdited(void) const;
  bool IsPesRecording(void) const { return isPesRecording; }
  bool IsOnVideoDirectoryFileSystem(void) const;
  bool HasMarks(void);
       ///< Returns true if this recording has any editing marks.
  bool DeleteMarks(void);
       ///< Deletes the editing marks from this recording (if any).
       ///< Returns true if the operation was successful. If there is no marks file
       ///< for this recording, it also returns true.
  void ReadInfo(void);
  bool WriteInfo(const char *OtherFileName = NULL);
       ///< Writes in info file of this recording. If OtherFileName is given, the info
       ///< file will be written under that recording file name instead of this
       ///< recording's file name.
  void SetStartTime(time_t Start);
       ///< Sets the start time of this recording to the given value.
       ///< If a filename has already been set for this recording, it will be
       ///< deleted and a new one will be generated (using the new start time)
       ///< at the next call to FileName().
       ///< Use this function with care - it does not check whether a recording with
       ///< this new name already exists, and if there is one, results may be
       ///< unexpected!
  bool ChangePriorityLifetime(int NewPriority, int NewLifetime);
       ///< Changes the priority and lifetime of this recording to the given values.
       ///< If the new values are the same as the old ones, nothing happens.
       ///< Returns false in case of error.
  bool ChangeName(const char *NewName);
       ///< Changes the name of this recording to the given value. NewName is in the
       ///< same format as the one returned by Name(), i.e. without the video directory
       ///< and the actual '*.rec' part, and using FOLDERDELIMCHAR as the directory
       ///< delimiter.
       ///< If the new name is the same as the old one, nothing happens.
       ///< Returns false in case of error.
  bool Delete(void);
       ///< 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
  bool Undelete(void);
       ///< Changes the file name so that it will be visible in the "Recordings" menu again and
       ///< not processed by cRemoveDeletedRecordingsThread.
       ///< Returns false in case of error
  int IsInUse(void) const;
       ///< Checks whether this recording is currently in use and therefore shall not
       ///< be tampered with. Returns 0 (ruNone) if the recording is not in use.
       ///< The return value may consist of several or'd eRecordingUsage flags. If the
       ///< caller is just interested in whether the recording is in use or not, the
       ///< return value can be used like a boolean value.
       ///< A recording may be in use for several reasons (like being recorded and replayed,
       ///< as in time-shift).
  };

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 anything 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);
  void ClearSortNames(void);
  cRecording *GetByName(const char *FileName);
  void AddByName(const char *FileName, bool TriggerUpdate = true);
  void DelByName(const char *FileName);
  void UpdateByName(const char *FileName);
  int TotalFileSizeMB(void);
  double MBperMinute(void);
       ///< Returns the average data rate (in MB/min) of all recordings, or -1 if
       ///< this value is unknown.
  int PathIsInUse(const char *Path);
       ///< Checks whether any recording in the given Path is currently in use and therefore
       ///< the whole Path shall not be tampered with. Returns 0 (ruNone) if no recording
       ///< is in use.
       ///< See cRecording::IsInUse() for details about the possible non-zero return values.
       ///< If several recordings in the Path are currently in use, the return value will
       ///< be the combination of all individual recordings' flags.
       ///< If Path is NULL or an empty string, the entire video directory is checked.
  int GetNumRecordingsInPath(const char *Path);
       ///< Returns the total number of recordings in the given Path, including all
       ///< sub-folders of Path.
       ///< If Path is NULL or an empty string, the entire video directory is checked.
  bool MoveRecordings(const char *OldPath, const char *NewPath);
       ///< Moves all recordings in OldPath to NewPath.
       ///< Returns true if all recordings were successfully moved.
       ///< As soon as the operation fails for one recording, the whole
       ///< action is aborted and false will be returned. Any recordings that
       ///< have been successfully moved thus far will keep their new name.
       ///< If OldPath and NewPath are on different file systems, the recordings
       ///< will be moved in a background process and this function returns true
       ///< if all recordings have been successfully added to the RecordingsHandler.
  };

extern cRecordings Recordings;
extern cRecordings DeletedRecordings;

class cRecordingsHandlerEntry;

class cRecordingsHandler {
private:
  cMutex mutex;
  cList<cRecordingsHandlerEntry> operations;
  bool finished;
  bool error;
  cRecordingsHandlerEntry *Get(const char *FileName);
public:
  cRecordingsHandler(void);
  ~cRecordingsHandler();
  bool Add(int Usage, const char *FileNameSrc, const char *FileNameDst = NULL);
       ///< Adds the given FileNameSrc to the recordings handler for (later)
       ///< processing. Usage can be either ruCut, ruMove or ruCopy. FileNameDst
       ///< is only applicable for ruMove and ruCopy.
       ///< At any given time there can be only one operation for any FileNameSrc
       ///< or FileNameDst in the list. An attempt to add a file name twice will
       ///< result in an error.
       ///< Returns true if the operation was successfully added to the list.
  void Del(const char *FileName);
       ///< Deletes the given FileName from the list of operations.
       ///< If an action is already in progress, it will be terminated.
       ///< FileName can be either the FileNameSrc or FileNameDst (if applicable)
       ///< that was given when the operation was added with Add().
  void DelAll(void);
       ///< Deletes/terminates all operations.
  int GetUsage(const char *FileName);
       ///< Returns the usage type for the given FileName.
  bool Active(void);
       ///< Checks whether there is currently any operation running and starts
       ///> the next one form the list if the previous one has finished.
       ///< This function must be called regularly to trigger switching to the
       ///< next operation in the list.
       ///< Returns true if there are any operations in the list.
  bool Finished(bool &Error);
       ///< Returns true if all operations in the list have been finished.
       ///< If there have been any errors, Errors will be set to true.
       ///< This function will only return true once if the list of operations
       ///< has actually become empty since the last call.
  };

extern cRecordingsHandler RecordingsHandler;

#define DEFAULTFRAMESPERSECOND 25.0

class cMark : public cListObject {
  friend class cMarks; // for sorting
private:
  double framesPerSecond;
  int position;
  cString comment;
public:
  cMark(int Position = 0, const char *Comment = NULL, double FramesPerSecond = DEFAULTFRAMESPERSECOND);
  virtual ~cMark();
  int Position(void) const { return position; }
  const char *Comment(void) const { return comment; }
  void SetPosition(int Position) { position = Position; }
  void SetComment(const char *Comment) { comment = Comment; }
  cString ToText(void);
  bool Parse(const char *s);
  bool Save(FILE *f);
  };

class cMarks : public cConfig<cMark> {
private:
  cString recordingFileName;
  cString fileName;
  double framesPerSecond;
  bool isPesRecording;
  time_t nextUpdate;
  time_t lastFileTime;
  time_t lastChange;
public:
  static cString MarksFileName(const cRecording *Recording);
       ///< Returns the marks file name for the given Recording (regardless whether such
       ///< a file actually exists).
  bool Load(const char *RecordingFileName, double FramesPerSecond = DEFAULTFRAMESPERSECOND, bool IsPesRecording = false);
  bool Update(void);
  bool Save(void);
  void Align(void);
  void Sort(void);
  void Add(int Position);
  cMark *Get(int Position);
  cMark *GetPrev(int Position);
  cMark *GetNext(int Position);
  cMark *GetNextBegin(cMark *EndMark = NULL);
       ///< Returns the next "begin" mark after EndMark, skipping any marks at the
       ///< same position as EndMark. If EndMark is NULL, the first actual "begin"
       ///< will be returned (if any).
  cMark *GetNextEnd(cMark *BeginMark);
       ///< Returns the next "end" mark after BeginMark, skipping any marks at the
       ///< same position as BeginMark.
  int GetNumSequences(void);
       ///< Returns the actual number of sequences to be cut from the recording.
       ///< If there is only one actual "begin" mark, and it is positioned at index
       ///< 0 (the beginning of the recording), and there is no "end" mark, the
       ///< return value is 0, which means that the result is the same as the original
       ///< recording.
  };

#define RUC_BEFORERECORDING "before"
#define RUC_AFTERRECORDING  "after"
#define RUC_EDITEDRECORDING "edited"
#define RUC_DELETERECORDING "deleted"

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, const char *SourceFileName = NULL);
  };

// The maximum size of a single frame (up to HDTV 1920x1080):
#define MAXFRAMESIZE  (KILOBYTE(1024) / TS_SIZE * TS_SIZE) // multiple of TS_SIZE to avoid breaking up TS packets

// The maximum file size is limited by the range that can be covered
// with a 40 bit 'unsigned int', which is 1TB. The actual maximum value
// used is 6MB below the theoretical maximum, to have some safety (the
// actual file size may be slightly higher because we stop recording only
// before the next independent frame, to have a complete Group Of Pictures):
#define MAXVIDEOFILESIZETS  1048570 // MB
#define MAXVIDEOFILESIZEPES    2000 // MB
#define MINVIDEOFILESIZE        100 // MB
#define MAXVIDEOFILESIZEDEFAULT MAXVIDEOFILESIZEPES

struct tIndexTs;
class cIndexFileGenerator;

class cIndexFile {
private:
  int f;
  cString fileName;
  int size, last;
  tIndexTs *index;
  bool isPesRecording;
  cResumeFile resumeFile;
  cIndexFileGenerator *indexFileGenerator;
  cMutex mutex;
  void ConvertFromPes(tIndexTs *IndexTs, int Count);
  void ConvertToPes(tIndexTs *IndexTs, int Count);
  bool CatchUp(int Index = -1);
public:
  cIndexFile(const char *FileName, bool Record, bool IsPesRecording = false, bool PauseLive = false);
  ~cIndexFile();
  bool Ok(void) { return index != NULL; }
  bool Write(bool Independent, uint16_t FileNumber, off_t FileOffset);
  bool Get(int Index, uint16_t *FileNumber, off_t *FileOffset, bool *Independent = NULL, int *Length = NULL);
  int GetNextIFrame(int Index, bool Forward, uint16_t *FileNumber = NULL, off_t *FileOffset = NULL, int *Length = NULL);
  int GetClosestIFrame(int Index);
       ///< Returns the index of the I-frame that is closest to the given Index (or Index itself,
       ///< if it already points to an I-frame). Index may be any value, even outside the current
       ///< range of frame indexes.
       ///< If there is no actual index data available, 0 is returned.
  int Get(uint16_t FileNumber, off_t FileOffset);
  int Last(void) { CatchUp(); return last; }
       ///< Returns the index of the last entry in this file, or -1 if the file is empty.
  int GetResume(void) { return resumeFile.Read(); }
  bool StoreResume(int Index) { return resumeFile.Save(Index); }
  bool IsStillRecording(void);
  void Delete(void);
  static int GetLength(const char *FileName, bool IsPesRecording = false);
       ///< Calculates the recording length (number of frames) without actually reading the index file.
       ///< Returns -1 in case of error.
  static cString IndexFileName(const char *FileName, bool IsPesRecording);
  };

class cFileName {
private:
  cUnbufferedFile *file;
  uint16_t fileNumber;
  char *fileName, *pFileNumber;
  bool record;
  bool blocking;
  bool isPesRecording;
public:
  cFileName(const char *FileName, bool Record, bool Blocking = false, bool IsPesRecording = false);
  ~cFileName();
  const char *Name(void) { return fileName; }
  uint16_t Number(void) { return fileNumber; }
  bool GetLastPatPmtVersions(int &PatVersion, int &PmtVersion);
  cUnbufferedFile *Open(void);
  void Close(void);
  cUnbufferedFile *SetOffset(int Number, off_t Offset = 0); // yes, Number is int for easier internal calculating
  cUnbufferedFile *NextFile(void);
  };

cString IndexToHMSF(int Index, bool WithFrame = false, double FramesPerSecond = DEFAULTFRAMESPERSECOND);
      // Converts the given index to a string, optionally containing the frame number.
int HMSFToIndex(const char *HMSF, double FramesPerSecond = DEFAULTFRAMESPERSECOND);
      // Converts the given string (format: "hh:mm:ss.ff") to an index.
int SecondsToFrames(int Seconds, double FramesPerSecond = DEFAULTFRAMESPERSECOND);
      // Returns the number of frames corresponding to the given number of seconds.

int ReadFrame(cUnbufferedFile *f, uchar *b, int Length, int Max);

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.

bool GenerateIndex(const char *FileName);

enum eRecordingsSortMode { rsmName, rsmTime };
extern eRecordingsSortMode RecordingsSortMode;
bool HasRecordingsSortMode(const char *Directory);
void GetRecordingsSortMode(const char *Directory);
void SetRecordingsSortMode(const char *Directory, eRecordingsSortMode SortMode);
void IncRecordingsSortMode(const char *Directory);

#endif //__RECORDING_H