DetectLetterbox.h

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#ifndef MYTHDETECTLETTERBOX_H
#define MYTHDETECTLETTERBOX_H
 
// Qt
#include <QMutex>
 
// MythTV
#include "mythframe.h"
#include "videoouttypes.h"
 
class MTV_PUBLIC DetectLetterbox
{
  public:
    DetectLetterbox();
   ~DetectLetterbox() = default;
    void SetDetectLetterbox(bool Detect, AdjustFillMode Mode);
    bool GetDetectLetterbox() const;
    bool Detect(MythVideoFrame* Frame, float VideoAspect, AdjustFillMode& Current);
 
  private:
    bool           m_isDetectLetterbox                 { false };
    long long      m_firstFrameChecked                 { 0 };
    VideoFrameType m_frameType                         { FMT_NONE };
    AdjustFillMode m_detectLetterboxDefaultMode        { kAdjustFill_Off };
    AdjustFillMode m_detectLetterboxDetectedMode       { kAdjustFill_Off }; 
    long long      m_detectLetterboxSwitchFrame        { -1 }; 
    long long      m_detectLetterboxPossibleHalfFrame  { -1 };
    long long      m_detectLetterboxPossibleFullFrame  { -1 };
    int            m_detectLetterboxConsecutiveCounter { 0 };
    int            m_detectLetterboxLimit              { 75 };
};
 
#endif