dvbsubtitle.h

Go to the documentation of this file.

/*
 * dvbsubtitle.h: DVB subtitles
 *
 * See the main source file 'vdr.c' for copyright information and
 * how to reach the author.
 *
 * Original author: Marco Schluessler <marco@lordzodiac.de>
 *
 * $Id: dvbsubtitle.h 5.3 2025/03/28 22:49:17 kls Exp $
 */
 
#ifndef __DVBSUBTITLE_H
#define __DVBSUBTITLE_H
 
#include <atomic>
#include "osd.h"
#include "thread.h"
#include "tools.h"
 
class cDvbSubtitlePage;
class cDvbSubtitleAssembler; // for legacy PES recordings
class cDvbSubtitleBitmaps;
 
class cDvbSubtitleConverter : public cThread {
private:
  static std::atomic<int> setupLevel; // incremented by SetupChanged() in the main thread, read by Action()
  cDvbSubtitleAssembler *dvbSubtitleAssembler;
  cOsd *osd;
  std::atomic<bool> frozen; // set by Freeze() and Reset() in other threads, read by Action() without the lock
  int ddsVersionNumber;
  int displayWidth;
  int displayHeight;
  int windowHorizontalOffset;
  int windowVerticalOffset;
  int windowWidth;
  int windowHeight;
  int osdDeltaX;
  int osdDeltaY;
  double osdFactorX;
  double osdFactorY;
  int retention;
  bool visible;
  uint64_t endVisible;
  cList<cDvbSubtitlePage> *pages;
  cList<cDvbSubtitleBitmaps> *bitmaps;
  cDvbSubtitleBitmaps *current;
  cDvbSubtitlePage *GetPageById(int PageId, bool New = false);
  void SetOsdData(void);
  bool AssertOsd(void);
  int ExtractSegment(const uchar *Data, int Length, int64_t Pts);
  int ExtractPgsSegment(const uchar *Data, int Length, int64_t Pts);
  void FinishPage(cDvbSubtitlePage *Page);
public:
  cDvbSubtitleConverter(void);
  virtual ~cDvbSubtitleConverter() override;
  virtual void Action(void) override;
  void SetVisible(bool Visible);
  void SetTempVisible(void);
  void Reset(void);
  void Freeze(bool Status) { frozen = Status; }
  int ConvertFragments(const uchar *Data, int Length); // for legacy PES recordings
  int Convert(const uchar *Data, int Length);
  static void SetupChanged(void);
  };
 
#endif //__DVBSUBTITLE_H