#ifndef _FFMPEG_FORMAT_CONTEXT_IN_H_
#define _FFMPEG_FORMAT_CONTEXT_IN_H_

#include <stdint.h>
#include <memory>
#include "PsToEs.hpp"

struct AVFormatContext;
struct AVDictionary;
struct AVStream;
struct AVCodecContext;
struct AVPacket;
struct AVFrame;
struct AVCodec;
struct AVIOContext;

typedef int(* read_packet)(void *opaque,uint8_t *buf, int buf_size);

namespace ffwrapper{

	class VideoProp;

	class FormatIn
	{
	public:
		explicit FormatIn(bool hw=true);
		explicit FormatIn(const VideoProp &prop, bool hw=true);
		~FormatIn();
		
	public:
		int openWithCustomIO(void *opaque, read_packet fn, AVDictionary **options=NULL);
        int openGb28181(const char *filename, AVDictionary **options);

		int open(const char *filename, AVDictionary **options);
		bool findStreamInfo(AVDictionary **options);

		bool openCodec(AVDictionary **options);
		
		int readPacket(AVPacket *pkt_out);

		int decode(AVFrame* frame, AVPacket *pkt);
		
		bool isVideoPkt(AVPacket *pkt);
		bool isAudioPkt(AVPacket *pkt);
		bool notVideoAudio(AVPacket *pkt);
	private:
		bool allocCodec(AVCodec *dec, AVStream *s, AVDictionary **options);
	public:
		AVStream *getStream(int type = -1);
		AVCodecContext *getCodecContext(int type = 0);
		AVFormatContext *getFromatContext(){return ctx_;}
		const double getFPS()const{return fps_;}
		const bool IsHEVC()const;
		const bool IsAVC1()const;
	private:
	 	AVFormatContext 	*ctx_;
	 	AVCodecContext 		*dec_ctx_;
	 	int 				vs_idx_;
		int 				as_idx_;


		VideoProp 			*prop_;
	 	bool 				hw_accl_;
		double 				fps_;
	private:
		AVIOContext			*io_ctx_;
		uint8_t 			*read_io_buff_;
		const int 			read_io_buff_size_;
		GB28181API			*handle_gb28181;
	};
}

#endif