//// FFmpegDecoder.h
#ifndef FFMPEGDECODER_H
#define FFMPEGDECODER_H

#include <QImage>
#include <QByteArray>
#include <QDebug>
#include <QThread>
#include <QLabel>
#include <QTimer>
#include <QPixmap>
#include <QMutex>
#include <QFile>
#include <QWaitCondition>
#include <cstdint>
#include <vector>
#include <QDir>
#include <QLineEdit>

#include "RingBuffer.h"
#include "FocusWindow.h"

extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libavutil/imgutils.h>
#include <libavcodec/avcodec.h>
}

#define READ_H264_FILE_TO_DISPLAY  1

class FFmpegDecoder : public QThread
{
    Q_OBJECT

public:
    explicit FFmpegDecoder(QObject* parent = nullptr);
    ~FFmpegDecoder() override;

    void initialize();
    void decodeFile(const QString& videoFilePath, QLabel* videoLabel, QLineEdit* VideoResolutionEdit);
    void decodeSingleFrame(const QByteArray& data, QLabel* videoLabel); // 添加 videoLabel 参数
    void FFmpegDecoder::processVideo(int itemIndex);
    bool initializeFFmpeg(const QString& filePath);
    void cleanup();
    void stopFFmpegDecoder();

protected:
    void run() override;

private:
    QImage avFrameToQImage(AVFrame* frame);

    QMutex           mutex;
    QWaitCondition   condition;
    QString          filePath;
    QLabel*          videoLabel;
    QLabel*          videoLabelTemp;  // 临时存储新标签   
    QLineEdit*       resolutionEdit;
    bool             videoLabelChanged = false; 
    bool             abort;
    bool             restart;
    bool             isGotResolution = false;

    AVFormatContext* formatContext;
    AVCodecContext*  codecContext;
    AVFrame*         frame;
    AVPacket*        packet;
    SwsContext*      swsContext;
    int              videoStreamIndex;
    int              FocusWindowWidth  = 0;
    int              FocusWindowHeight = 0;

    RingBuffer* ringBuffer;
};

#endif // FFMPEGDECODER_H