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#ifndef DECODEDATA_H
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#define DECODEDATA_H
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <list>
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#include <mutex>
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#include "H264_SEI_typedef.h"
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#include "StitchStruct.h"
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#include "API_FrontStitch.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "libavformat/avformat.h"
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#include "libswscale/swscale.h"
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#include "libavutil/opt.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/time.h"
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#include "libavutil/avutil.h"
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#ifdef __cplusplus
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}
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#endif
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#define UDP_BUFFER_LENGTHIMG 1024
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#define UDPIMGWIDTH 1920
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#define UDPIMGHEIGHT 1080
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typedef struct tagUdpParam
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{
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uint32_t nFrameNum;
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uint32_t nPackNum;
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uint32_t nPackIndex;
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uint32_t nDataSize;
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}UdpParam;
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typedef struct tagFRAME_LIST_ELEMENT
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{
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uint32_t FrameID;
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uint8_t *pFrameInfo;
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uint32_t len;
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} FRAME_LIST_ELEMENT, *PFRAME_LIST_ELEMENT;
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class DecodeData
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{
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public:
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DecodeData();
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//读取文件
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// 二进制分包读取文件函数（使用char*作为缓冲区）
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// 参数: filename - 文件名, chunkSize - 每个包的大小(字节), startPos - 开始读取的位置, buffer - 接收数据的缓冲区
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// 返回值: 实际读取的字节数, 0表示读取失败或已到文件末尾
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size_t readFileChunk(const std::string& filename, size_t chunkSize, std::streamoff& startPos, char* buffer);
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void processFileInChunks(const std::string& filename, size_t chunkSize);
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void DealWithUDPData(char *Buffer, int Length);
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void processData(char*cH264Data, int iLength);
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void Init();
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void UnInit();
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int InitDecode();
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int DecodeRGBImageAndPara(unsigned char *RGBBuffer,H264SEI_Para_732 SEIdata);
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void getPanoSourceData(unsigned char *dst, unsigned char *src);
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public:
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int m_CurrentVideo = 1; //0:红外，1：可见光
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int m_LocalHeight = 0;
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int m_FrameNo = 0;
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int32_t m_nWidth;
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int32_t m_nHeight;
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uint8_t *m_cUDPBuffer =NULL;
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int m_iUDPPoint=0;
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int m_iUDPState=0;
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int m_nPos=0;
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uint32_t m_iImgPacketLen;
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uint32_t m_iImgPacketLenTest;
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long m_lIndex = 0;
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long m_lLostNum = 0;
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std::mutex m_UDPdataMutex;
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std::list<FRAME_LIST_ELEMENT*> ImageCapQueue;
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uint8_t * m_cDecodeBuffer;
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long m_lDecodePoint=0;
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int m_nRes = 0;
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//实时流相关
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AVDictionary* m_pFmtOpts;
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AVDictionary* m_pCodecOpts;
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AVFormatContext* m_pFmtCtx;
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AVCodecContext* m_pCodecCtx;
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AVPacket* m_pPacket;
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AVFrame* m_pFrame;
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int m_nVideoStreamIndex;
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int m_nAudioStreamIndex;
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int m_nSubtitleStreamIndex;
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AVCodec* m_pVideoCodec;
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int m_nVideoTimeBaseNum;
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int m_nVideoTimeBaseDen;
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AVPixelFormat m_emPixFmtSrc;
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AVPixelFormat m_emPixFmtDst;
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SwsContext* m_pSwsCtx;
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uint8_t* m_pArrayData[4];
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int m_nArrayLinesize[4];
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H264SEI_Para_732 SEI_Data = {0};
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bool s_bFFMpegInit; //ffmpeg是否初始化
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unsigned char* m_pBuffer; //用户格式的数据指针
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unsigned char* m_pBufferIR; //用户格式的数据指针
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//设备数据处理
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bool m_bDataThreadRunning;
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std::thread* m_ptrThread_DataDealwith;
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typedef void (DecodeData::*ThreadRunFunPtr)();
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static void ThreadEntry(ThreadRunFunPtr pRunFun, void* pOwner);
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void ThreadFunData(); //数据处理
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void DecodeUDPData(uint8_t *cData, long lLength);
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void DecodeH264Data(uint8_t *h264Data, long dataLength);
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API_FrontStitch* m_frontStitcher;
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};
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#endif // DECODEDATA_H
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