part of sort

@@ -5,26 +5,50 @@
 #include <fstream>
 #include <vector>
 #include <string.h>
+#include <list>
 
 
 bool only_print = false;
 bool keep_tmp_files = false;
 using   namespace  std;
 
+enum media_type{
+	mt_audio = 0,
+	mt_video = 1,
+};
+
+enum timestamp_type{
+	tt_start = 0,
+	tt_end = 1;
+};
+
 class fileinfo {
 public:
 	float start_time;
 	float end_time;
-	string start_time_str;
-	string end_time_str;
 	string name;
+	int index;
+	media_type m_type;
 };
 
-enum media_type{
-	type_audio = 0,
-	type_video = 1,
+class media_info {
+public:
+	float type_time;//the time for start or end according to the m_type
+	float start_time;
+	float end_time;
+	string name;
+
+	float duration;
+	float cur_start;
+	float cur_end;
+	int index;
+	media_type m_type;
+	timestamp_type t_type;
 };
-vector<fileinfo>  media_files[2];
+
+
+vector<fileinfo>  media_files;
+
 
 void run_shell_cmd(const char * cmd)
 {
@@ -82,14 +106,13 @@ bool first_time_set = false;
 float start_time = 0.0f;
 
 void addinfo(string t, string name, bool bstart){
-	media_type mtype = name.substr(name.length() - 4, name.length()) == ".aac" ? type_audio : type_video;
+	media_type mtype = name.substr(name.length() - 4, name.length()) == ".aac" ? mt_audio : mt_video;
 	if (bstart) {
 		fileinfo f;
 		f.start_time = atof(t.c_str());
 		f.end_time = f.start_time;
-		f.start_time_str = t;
-		f.end_time_str = t;
 		f.name = name;
+		f.m_type = mtype;
 
 		if (!first_time_set) {
 			first_time_set = true;
@@ -98,23 +121,21 @@ void addinfo(string t, string name, bool bstart){
 
 		f.start_time -= start_time;
 
-		media_files[mtype].push_back(f);
+		media_files.push_back(f);
 	}
 	else {
-		vector<fileinfo>  & files = media_files[mtype];
 		int i;
-		for (i = 0; i < files.size(); i++) {
-			if (files[i].name == name) {
-				files[i].end_time = atof(t.c_str());
-				files[i].end_time_str = t;
-				files[i].end_time -= start_time;
+		for (i = 0; i < media_files.size(); i++) {
+			if (media_files[i].name == name) {
+				media_files[i].end_time = atof(t.c_str());
+				media_files[i].end_time -= start_time;
 				break;
 			}
 		}
 
-		if (i == files.size())
+		if (i == media_files.size())
 		{
-			cout << "\nerror ,file : " << name << "  close but not started!";
+			printf("\nerror ,file : %s  close but not started!", name.c_str());
 		}
 	}
 }
@@ -336,18 +357,16 @@ float get_file_duration(const char *mediafile, bool bVideo)
 
 void get_duration_from_video_file()
 {
-	vector<fileinfo>  & filesvideo = media_files[type_video];
-	vector<string>  tmp_files;
-
 	bool tmp = only_print;
 	only_print = false;
 
-
-	for (int i = 0; i < filesvideo.size(); i++){ 
-		float duration = get_file_duration(filesvideo[i].name.c_str(), true);
-		if (duration >= 0.10) {
-			printf("file:%s , duration in recording file: %.3f, duration parsed from file: %.3f\n", filesvideo[i].name.c_str(), filesvideo[i].end_time - filesvideo[i].start_time, duration);
-			filesvideo[i].end_time = filesvideo[i].start_time + duration;
+	for (int i = 0; i < media_files.size(); i++){
+		if (media_files[i].m_type == mt_video) {
+			float duration = get_file_duration(media_files[i].name.c_str(), true);
+			if (duration >= 0.1) {
+				printf("file:%s , duration in recording file: %.3f, duration parsed from file: %.3f\n", media_files[i].name.c_str(), media_files[i].end_time - media_files[i].start_time, duration);
+				media_files[i].end_time = media_files[i].start_time + duration;
+			}
 		}
 	}
 
@@ -357,19 +376,17 @@ void get_duration_from_video_file()
 
 void check_audio_duration()
 {
-	vector<fileinfo>  & filesaudio = media_files[type_audio];
-	vector<string>  tmp_files;
-
 	bool tmp = only_print;
 	only_print = false;
 
-
-	for (int i = 0; i < filesaudio.size(); i++){
-		fileinfo f = filesaudio[i];
-		if (f.end_time - f.start_time < 0.1){
-			float duration = get_file_duration(f.name.c_str(), false);
-			filesaudio[i].end_time = f.start_time + duration;
-			printf("file:%s , duration in recording file maybe is not set, duration parsed from file: %.3f\n",f.name.c_str(),  duration);
+	for (int i = 0; i < media_files.size(); i++){
+		if (media_files[i].m_type == mt_audio) {
+			fileinfo f = media_files[i];
+			if (f.end_time - f.start_time < 0.1){//avoid no close 
+				float duration = get_file_duration(f.name.c_str(), false);
+				media_files[i].end_time = f.start_time + duration;
+				printf("file:%s , duration in recording file maybe is not set, duration parsed from file: %.3f\n", f.name.c_str(), duration);
+			}
 		}
 	}
 
@@ -404,22 +421,22 @@ int merge_audio_file(vector<string> & files, const char * dest)
 
 class MergeProcess{
 public:
-	MergeProcess(vector<fileinfo>  & a, vector<fileinfo>  & v);
+	MergeProcess();
 	int process_files(const char * output_dest_file);
 
 protected:
-		void init();
-		void adjust_va_timestamp();
-		void merge_left_audio();
-		int process_video_ahead_of_audio();
-		int process_video_behind_audio();
-		int process_video_align_audio();
-		int process_video_loop();
-		int process_va();
+	void add_media_infos();
+	void init();
+	void adjust_va_timestamp();
+	void merge_left_audio();
+	int process_video_ahead_of_audio();
+	int process_video_behind_audio();
+	int process_video_align_audio();
+	int process_video_loop();
+	int process_va();
 
 protected:
-	vector<fileinfo>  & filesaudio;
-	vector<fileinfo>  & filesvideo;
+	vector<media_info>  media_infos;
 	vector<string > merged_files;
 	vector<string>  tmp_files;
 	int nv; // the index of processing video file
@@ -431,13 +448,42 @@ protected:
 	int audio_start;
 	fileinfo audio;
 	fileinfo video;
+private:
+
+	void add_media_info(media_info m)
+	{
+		throw std::logic_error("The method or operation is not implemented.");
+	}
+
+
 };
 
-MergeProcess::MergeProcess(vector<fileinfo> & a, vector<fileinfo> & v) :filesaudio(a), filesvideo(v)
-{
+MergeProcess::MergeProcess(){
 	init();
 }
 
+void MergeProcess::add_media_infos()
+{
+	for (int i = 0; i < media_files.size(); i++) {
+		fileinfo f = media_files[i];
+		media_info m;
+		m.index = i;
+		m.name = f.name;
+		m.start_time = f.start_time;
+		m.end_time = f.end_time;
+		m.m_type = f.m_type;
+		m.t_type = tt_start;
+		m.duration = f.end_time - f.start_time;
+		m.cur_start = 0;
+		m.cur_end = m.duration;
+		m.type_time = m.start_time;
+		add_media_info(m);
+		m.t_type = tt_end;
+		m.type_time = m.end_time;
+		add_media_info(m);
+	}
+}
+
 void MergeProcess::init()
 {
 	strcpy(blank_pic_file, cfg_path);
@@ -448,6 +494,8 @@ void MergeProcess::init()
 
 	check_audio_duration();
 	get_duration_from_video_file();
+	add_media_infos();
+
 	nv = 0;
 	nf = 0;
 	audio_index = 0;