video-pc/libs/AVPlayer2/audio_effect_helper.h

#ifndef AVPLAYER2_AUDIO_EFFECT_HELPER_H
#define AVPLAYER2_AUDIO_EFFECT_HELPER_H
#pragma once
#include <QBrush>
#include <QFont>
#include <QPen>
#include <QWidget>

#include "audio_play_thread.h"

class BarHelper
{
public:
    explicit BarHelper();
    virtual ~BarHelper() {};

public:
    enum GraphicType { e_GtBar, e_GtLine, e_GtPie };
    enum VisualType { e_VtSampleing, e_VtFrequency };
    typedef struct VisualFormat
    {
        GraphicType gType;
        VisualType vType;

        VisualFormat()
            : gType(e_GtBar)
            , vType(e_VtSampleing)
        {}
    } VisualFormat;

public:
    void paint(QPainter* painter, QPaintEvent* event, const AudioData& data);
    void draw_data_style(QPainter* painter, const QRect& rt, const AudioData& data);
    void set_draw_fmt(const VisualFormat& fmt) { m_visualFmt = fmt; }

private:
    void get_data(const AudioData& data, std::vector<int>& v, bool left = true) const;
    void normal_data(std::vector<int>& v, const int height);
    void normal_overzero(std::vector<int>& v);
    void normal_audio_to_size(std::vector<int>& v, const int size);
    void normal_to_size(std::vector<int>& v, const int size);
    void data_sample_old(std::vector<int>& v, const uint32_t num); //wav sampling
    void data_sample(std::vector<int>& v, const uint32_t num);     //wav sampling
    void binary_data(std::vector<int>& v);
    void data_frequency(std::vector<int>& v, const uint32_t num);
    void draw_data_bar(QPainter* painter, std::vector<int>& data, int n, int w, int h, int h_inter);
    void draw_data_line(QPainter* painter, std::vector<int>& data, int n, int w, int h, int h_inter);
    void draw_data_arc(QPainter* painter, std::vector<int>& data, int n, int w, int h);
    void draw_data_polygon(
        QPainter* painter, std::vector<int>& data, int n, int w, int h, int r_offset = 50);

private:
    QBrush m_background;
    QBrush m_brush;
    QFont m_textFont;
    QPen m_pen;
    QPen m_textPen;
    AudioFrameFmt m_datafmt;
    VisualFormat m_visualFmt;
};
#endif // AVPLAYER2_AUDIO_EFFECT_HELPER_H