#ifndef _FFMPEG_FORMAT_CONTEXT_OUT_H_
#define _FFMPEG_FORMAT_CONTEXT_OUT_H_

#include <stdlib.h>
#include <memory>
#include <string>
#include <vector>

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

namespace ffwrapper{
	class VideoProp;

	class FormatOut
	{
	public:
		FormatOut();
		~FormatOut();
	
		FormatOut(VideoProp &prop,
				const char *filename, char *format_name = NULL);

		FormatOut(const double fps, const char *format_name);

		void clear();
	public:
		bool open(const char *filename, const char *format_name);
		bool openCodec(VideoProp &prop);
		
		int encode(AVPacket *pkt, AVFrame *frame);

	public:
		bool copyCodecFromIn(std::vector<AVStream*> in);
		bool openResource(const char *filename, const int flags);
		bool closeResource();

		bool JustWriter(std::vector<AVStream*> in, const char *filename);
		bool EncodeWriter(const char *filename);
		bool writeFrame(AVPacket *pkt, const int64_t &frame_cnt, bool interleaved = true);
		void adjustPTS(AVPacket *pkt, const int64_t &frame_cnt);
		bool endWriter();

		bool writeHeader(AVDictionary **options = NULL);
		bool writeFrame2(AVPacket *pkt, bool interleaved);
		bool writeTrailer();
	public:
		AVStream *getStream();
		const AVCodecContext *getCodecContext() const;

		const double getFPS()const{return fps_;}
		const char* getFormatName() const{return format_name_.c_str();}
		const char* getFileName() const;//{return ctx_->filename;}

		const bool isRecord(){return record_;}
	private:
		void configEncoder(VideoProp &prop);
	private:
		AVFormatContext 		*ctx_;	
		int 					v_idx_;
		int 					a_idx_;
		AVCodecContext 			*enc_ctx_;

		int64_t				 	sync_opts_;

		bool 					record_;

		double 					fps_;
		std::string 			format_name_;

		// rec
		std::vector<AVStream*>  in_streams_;
	};
}
#endif