修改mp4录制相关代码风格

src/Record/MP4Recorder.cpp

@@ -20,17 +20,13 @@ using namespace toolkit;
 
 namespace mediakit {
 
-MP4Recorder::MP4Recorder(const string &strPath,
-                         const string &strVhost,
-                         const string &strApp,
-                         const string &strStreamId,
-                         size_t max_second) {
-    _strPath = strPath;
+MP4Recorder::MP4Recorder(const string &path, const string &vhost, const string &app, const string &stream_id, size_t max_second) {
+    _folder_path = path;
     /////record 业务逻辑//////
-    _info.app = strApp;
-    _info.stream = strStreamId;
-    _info.vhost = strVhost;
-    _info.folder = strPath;
+    _info.app = app;
+    _info.stream = stream_id;
+    _info.vhost = vhost;
+    _info.folder = path;
     GET_CONFIG(size_t ,recordSec,Record::kFileSecond);
     _max_second = max_second ? max_second : recordSec;
 }
@@ -40,31 +36,27 @@ MP4Recorder::~MP4Recorder() {
 
 void MP4Recorder::createFile() {
     closeFile();
-    auto strDate = getTimeStr("%Y-%m-%d");
-    auto strTime = getTimeStr("%H-%M-%S");
-    auto strFileTmp = _strPath + strDate + "/." + strTime + ".mp4";
-    auto strFile =	_strPath + strDate + "/" + strTime + ".mp4";
+    auto date = getTimeStr("%Y-%m-%d");
+    auto time = getTimeStr("%H-%M-%S");
+    auto full_path_tmp = _folder_path + date + "/." + time + ".mp4";
+    auto full_path = _folder_path + date + "/" + time + ".mp4";
 
     /////record 业务逻辑//////
     _info.start_time = ::time(NULL);
-    _info.file_name = strTime + ".mp4";
-    _info.file_path = strFile;
+    _info.file_name = time + ".mp4";
+    _info.file_path = full_path;
     GET_CONFIG(string, appName, Record::kAppName);
-    _info.url = appName + "/"
-                + _info.app + "/"
-                + _info.stream + "/"
-                + strDate + "/"
-                + strTime + ".mp4";
+    _info.url = appName + "/" + _info.app + "/" + _info.stream + "/" + date + "/" + time + ".mp4";
 
     try {
         _muxer = std::make_shared<MP4Muxer>();
-        _muxer->openMP4(strFileTmp);
+        _muxer->openMP4(full_path_tmp);
         for (auto &track :_tracks) {
             //添加track
             _muxer->addTrack(track);
         }
-        _strFileTmp = strFileTmp;
-        _strFile = strFile;
+        _full_path_tmp = full_path_tmp;
+        _full_path = full_path;
     } catch (std::exception &ex) {
         WarnL << ex.what();
     }
@@ -72,10 +64,10 @@ void MP4Recorder::createFile() {
 
 void MP4Recorder::asyncClose() {
     auto muxer = _muxer;
-    auto strFileTmp = _strFileTmp;
-    auto strFile = _strFile;
+    auto full_path_tmp = _full_path_tmp;
+    auto full_path = _full_path;
     auto info = _info;
-    WorkThreadPool::Instance().getExecutor()->async([muxer,strFileTmp,strFile,info]() mutable{
+    WorkThreadPool::Instance().getExecutor()->async([muxer, full_path_tmp, full_path, info]() mutable {
         //获取文件录制时间，放在关闭mp4之前是为了忽略关闭mp4执行时间
         info.time_len = (float) (::time(NULL) - info.start_time);
         //关闭mp4非常耗时，所以要放在后台线程执行
@@ -83,15 +75,15 @@ void MP4Recorder::asyncClose() {
 
         //获取文件大小
         struct stat fileData;
-        stat(strFileTmp.data(), &fileData);
+        stat(full_path_tmp.data(), &fileData);
         info.file_size = fileData.st_size;
         if (fileData.st_size < 1024) {
             //录像文件太小，删除之
-            File::delete_file(strFileTmp.data());
+            File::delete_file(full_path_tmp.data());
             return;
         }
         //临时文件名改成正式文件名，防止mp4未完成时被访问
-        rename(strFileTmp.data(),strFile.data());
+        rename(full_path_tmp.data(), full_path.data());
 
         /////record 业务逻辑//////
         NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastRecordMP4, info);
@@ -106,17 +98,18 @@ void MP4Recorder::closeFile() {
 }
 
 bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
-    if (_baseSec == 0) {
-        _baseSec = frame->dts();
+    if (_last_dts == 0) {
+        //极少情况下dts时间戳可能回退
+        _last_dts = frame->dts();
     }
 
-    auto duration = frame->dts() - _baseSec;
-    if (!_muxer || ((duration > _max_second * 1000) && (!_haveVideo || (_haveVideo && frame->keyFrame())))) {
+    auto duration = frame->dts() - _last_dts;
+    if (!_muxer || ((duration > _max_second * 1000) && (!_have_video || (_have_video && frame->keyFrame())))) {
         //成立条件
         //1、_muxer为空
         //2、到了切片时间，并且只有音频
         //3、到了切片时间，有视频并且遇到视频的关键帧
-        _baseSec = 0;
+        _last_dts = 0;
         createFile();
     }
 
@@ -131,7 +124,7 @@ bool MP4Recorder::addTrack(const Track::Ptr & track){
     //保存所有的track，为创建MP4MuxerFile做准备
     _tracks.emplace_back(track);
     if (track->getTrackType() == TrackVideo) {
-        _haveVideo = true;
+        _have_video = true;
     }
     return true;
 }
@@ -139,10 +132,9 @@ bool MP4Recorder::addTrack(const Track::Ptr & track){
 void MP4Recorder::resetTracks() {
     closeFile();
     _tracks.clear();
-    _haveVideo = false;
+    _have_video = false;
 }
 
 } /* namespace mediakit */
 
-
 #endif //ENABLE_MP4

src/Record/MP4Recorder.h

@@ -28,14 +28,10 @@ namespace mediakit {
 #ifdef ENABLE_MP4
 class MP4Recorder : public MediaSinkInterface {
 public:
-    typedef std::shared_ptr<MP4Recorder> Ptr;
+    using Ptr = std::shared_ptr<MP4Recorder>;
 
-    MP4Recorder(const string &strPath,
-                const string &strVhost,
-                const string &strApp,
-                const string &strStreamId,
-                size_t max_second);
-    virtual ~MP4Recorder();
+    MP4Recorder(const string &path, const string &vhost, const string &app, const string &stream_id, size_t max_second);
+    ~MP4Recorder() override;
 
     /**
      * 重置所有Track
@@ -56,16 +52,17 @@ private:
     void createFile();
     void closeFile();
     void asyncClose();
+
 private:
-    bool _haveVideo = false;
+    bool _have_video = false;
     size_t _max_second;
-    string _strPath;
-    string _strFile;
-    string _strFileTmp;
+    string _folder_path;
+    string _full_path;
+    string _full_path_tmp;
     RecordInfo _info;
     MP4Muxer::Ptr _muxer;
     list<Track::Ptr> _tracks;
-	uint64_t _baseSec = 0;
+    uint64_t _last_dts = 0;
 };
 
 #endif ///ENABLE_MP4