first version

@@ -102,7 +102,7 @@ void get_config_path(){
 const char * default_vcodec_param = "-vcodec libx264 -level 3.1 -preset veryfast -g 100 -r 20 -bf 0 -vsync cfr";
 const char * default_acodec_param = "-acodec copy";
 const char * default_av_codec_param = "-acodec aac -vcodec libx264 -level 3.1 -preset veryfast -g 100 -r 20 -bf 0 -vsync cfr";
-const char * default_pip_param = "-filter_complex \"[1:v]scale = w = 80:h = 60 : force_original_aspect_ratio = decrease[b]; [0:v][b]overlay = x = 0:y = 0\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2,volume=1";
+const char * default_pip_param = "-filter_complex \"[1:v]scale=w=80:h=60:force_original_aspect_ratio=decrease[b];[0:v][b]overlay=x=0:y=0\" -filter_complex amix=inputs=2:duration=first:dropout_transition=2,volume=1";
 
 
 char av_codec_param[1024];
@@ -408,6 +408,23 @@ int merge_audio_file(vector<string> & files, const char * dest)
 	return 0;
 }
 
+int merge_av_file(vector<string> & files, const char * dest)
+{
+	char tsfile[1024];
+	vector<string> tsfiles;
+
+	sprintf(tsfile, "m_%s.ts", dest);
+	concate_files(files, tsfile);
+
+	adjust_dest_timecode(tsfile, dest);
+
+	if (!keep_tmp_files){
+		tsfiles.push_back(tsfile);
+		removefiles(tsfiles);
+	}
+	return 0;
+}
+
 
 list <media_info> sorted_media;
 deque<media_info> sorted_infos;
@@ -552,6 +569,7 @@ int merge_audio_video(vector<media_info> & files)
 
 int merge_video_pip(vector<media_info> & files)
 {
+	char video_file[1024];
 	vector<string> merge_video_files;
 	int nsilence = 0;
 
@@ -559,45 +577,52 @@ int merge_video_pip(vector<media_info> & files)
 	float start_time = video.start_time;
 
 	for (int i = 1; i < files.size() - 1; i += 2){
-		media_info audio = files[i];
-		media_info audio_end = files[i + 1];
-		if (audio.type_time - start_time > 0.1){
+		media_info video = files[i];
+		media_info video_end = files[i + 1];
+		if (video.type_time - start_time > 0.1){
 			sprintf(audio_file, "%d_%d_silence.aac", nf, nsilence++);//a duration of silence
-			split_audio(silence_aac_file, 0, audio.type_time - start_time, audio_file);
-			merge_video_files.push_back(audio_file);
-			tmp_files.push_back(audio_file);
-		}
+			split_audio(silence_aac_file, 0, video.type_time - start_time, audio_file);
+			sprintf(video_file, "%d_%d_blank.ts", nf, nsilence++);
+			merge_audio_pic(audio_file, blank_pic_file, video_file);
 
-		if (audio.type_time - audio.start_time > 0.10 || audio_end.end_time - audio_end.type_time > 0.10) {
-			sprintf(audio_file, "%d_%s", nf, audio.name.c_str());
-			split_audio(audio.name.c_str(), audio.type_time - audio.start_time, audio_end.type_time - audio.type_time, audio_file);
+			merge_video_files.push_back(video_file);
 			tmp_files.push_back(audio_file);
+			tmp_files.push_back(video_file);
+		}
 
+		if (video.type_time - video.start_time > 0.10 || video_end.end_time - video_end.type_time > 0.10) {
+			sprintf(video_file, "%d_%s", nf, video.name.c_str());
+			split_av(video.name.c_str(), video.type_time - video.start_time, video_end.type_time - video.type_time, video_file);
+			tmp_files.push_back(video_file);
 		}
 		else{
-			strcpy(audio_file, audio.name.c_str());
+			strcpy(video_file, video.name.c_str());
 		}
 
-		start_time = audio_end.type_time;
-		merge_video_files.push_back(audio_file);
+		start_time = video_end.type_time;
+		merge_video_files.push_back(video_file);
 
 		if (i == files.size() - 2){
-			if (video.end_time - audio_end.type_time > 0.1){
+			if (video.end_time - video_end.type_time > 0.1){
 				sprintf(audio_file, "%d_%d_silence.aac", nf, nsilence++);//a duration of silence
-				split_audio(silence_aac_file, 0, video.end_time - audio_end.type_time, audio_file);
-				merge_video_files.push_back(audio_file);
+				split_audio(silence_aac_file, 0, video.end_time - video_end.type_time, audio_file);
+				sprintf(video_file, "%d_%d_blank.ts", nf, nsilence++);
+				merge_audio_pic(audio_file, blank_pic_file, video_file);
+
+				merge_video_files.push_back(video_file);
 				tmp_files.push_back(audio_file);
+				tmp_files.push_back(video_file);
 			}
 		}
 	}
 
-	sprintf(audio_file, "%d_merged.aac", nf);
-	merge_audio_file(merge_video_files, audio_file);
-	tmp_files.push_back(audio_file);
+	sprintf(video_file, "%d_merged.ts", nf);
+	merge_av_file(merge_video_files, video_file);
+	tmp_files.push_back(video_file);
 
 
 	sprintf(destfile, "%d.ts", nf);
-	merge_audio_video(audio_file, video.name.c_str(), destfile);
+	merge_video_pip(video_file, video.name.c_str(), destfile);
 	merged_files.push_back(destfile);
 	nf++;
 
@@ -827,7 +852,8 @@ void get_front_info(int index_to, vector<media_info> &cur_processing)
 
 int concate_files_and_adjust_timecode(const char * output_dest_file){
 	if (merged_files.size() == 1){
-		printf("\n rename %s to %s", merged_files[0].c_str(), output_dest_file);
+		printf("rename %s to %s\n", merged_files[0].c_str(), output_dest_file);
+		remove(output_dest_file);
 		rename(merged_files[0].c_str(), output_dest_file);
 	}
 	else {
@@ -860,7 +886,7 @@ int get_output_file_name(int i, const char * file_prefix, char * outputfile){
 		strcpy(prefix, file_prefix);
 	}
 	
-	sprintf(outputfile, "%s.ts", prefix, i);
+	sprintf(outputfile, "pip_%s.ts", prefix, i);
 	return 0;
 }
 
@@ -918,7 +944,7 @@ int process_va_files()
 			else {
 				get_front_info(index, cur_processing);
 			}
-			merge_audio_video(cur_processing);
+			merge_video_pip(cur_processing);
 		}
 		//if the duration between the processed end and the start of not processed is large than 200 ms, reopen a new file
 		if (is_start){