Merge pull request #94 from nanguantong/master

添加文件循环读取

src/Common/config.cpp

@@ -268,12 +268,16 @@ const string kFilePath = RECORD_FIELD"filePath";
 //mp4文件写缓存大小
 const string kFileBufSize = RECORD_FIELD"fileBufSize";
 
+//mp4文件是否重头循环读取
+const string kFileRepeat = RECORD_FIELD"fileRepeat";
+
 onceToken token([](){
 	mINI::Instance()[kAppName] = RECORD_APP_NAME;
 	mINI::Instance()[kSampleMS] = RECORD_SAMPLE_MS;
 	mINI::Instance()[kFileSecond] = RECORD_FILE_SECOND;
 	mINI::Instance()[kFilePath] = RECORD_FILE_PATH;
 	mINI::Instance()[kFileBufSize] = 64 * 1024;
+	mINI::Instance()[kFileRepeat] = false;
 },nullptr);
 
 } //namespace Record

src/Common/config.h

@@ -268,6 +268,8 @@ extern const string kFileSecond;
 extern const string kFilePath;
 //mp4文件写缓存大小
 extern const string kFileBufSize;
+//mp4文件是否重头循环读取
+extern const string kFileRepeat;
 } //namespace Record
 
 ////////////HLS相关配置///////////

src/MediaFile/MediaReader.cpp

@@ -200,6 +200,11 @@ bool MediaReader::readSample(int iTimeInc,bool justSeekSyncFrame) {
 	if((bFlag0 || bFlag1) && bFlag2){
 		_alive.resetTime();
 	}
+	//重头开始循环读取
+	GET_CONFIG(bool,fileRepeat,Record::kFileRepeat);
+	if (fileRepeat && !bFlag0 && !bFlag1) {
+		seek(0);
+	}
 	//DebugL << "alive ...";
 	//3秒延时关闭
 	return  _alive.elapsedTime() <  3 * 1000;