add silence.aac to support for the recording file having video only

set version to 1.0.4

@@ -167,6 +167,13 @@ void merge_audio_pic(fileinfo audio, const char * picfile, const char * destfile
 	run_shell_cmd(buf);
 }
 
+void merge_video_silence(fileinfo video, const char * aacfile, const char * destfile)
+{
+	char buf[2048];
+	sprintf(buf, "ffmpeg -y  -i %s -i %s -shortest %s %s %s", aacfile, video.name.c_str(), acodec_param, vcodec_param, destfile);
+	run_shell_cmd(buf);
+}
+
 void megre_audio_video(fileinfo audio, int nf, fileinfo video, const char * destfile)
 {
 	char buf[2048];
@@ -332,14 +339,18 @@ int process_files(const char * output_dest_file)
 	int nf = 0;
 	char destfile[1024];
 	char blank_pic_file[1024];
+	char silence_aac_file[1024];
 
 	strcpy(blank_pic_file, cfg_path);
 	strcat(blank_pic_file, "blank.jpg");
 
+	strcpy(silence_aac_file, cfg_path);
+	strcat(silence_aac_file, "silence.aac");
+
 	get_duration_from_video_file();
 
 	if (filesvideo.size()) {//has video files
-
+		if (filesaudio.size()){
 			for (int i = 0; i < filesaudio.size(); i++){  //
 				fileinfo audio = filesaudio[i];
 				float audio_start = audio.start_time;
@@ -436,6 +447,22 @@ int process_files(const char * output_dest_file)
 				}
 			}
 		}
+		else{//only video
+			if (filesvideo.size() == 1){
+				fileinfo video = filesvideo[0];
+				merge_video_silence(video, silence_aac_file, "dest.ts");
+				return 0;
+			}
+
+			for (int i = 0; i < filesvideo.size(); i++){
+				fileinfo video = filesvideo[i];
+				sprintf(destfile, "%d.ts", nf);
+				merge_video_silence(video, silence_aac_file, destfile);
+				merged_files.push_back(destfile);
+				nf++;
+			}
+		}
+	}
 	else {//only audio
 
 		if (filesaudio.size() == 1){
@@ -526,7 +553,7 @@ void load_codec_param()
 int main(int argc, char * argv[])
 {
 	if (argc < 2) {
-		printf("   merge_av 1.0.3\n");
+		printf("   merge_av 1.0.4\n");
 		printf("   run ffmpeg to merge audio and video files according to the record info file,\nusage:");
 		printf("\n   %s record_info_filename [-p] [-k]", argv[0]);
 		printf("\n   -p :only print the command,don't run ffmpeg");

+0.000 750351447_20171221092557104.webm create 
+0.001 750351447_20171221092557104.webm info width=240 height=180 rotation=0
+752.813 750351447_20171221092557104.webm close