解决hls中断恢复时播放器计数不准确的问题

src/Http/HttpFileManager.cpp

@@ -258,13 +258,13 @@ static void canAccessPath(TcpSession &sender, const Parser &parser, const MediaI
         auto lck = cookie->getLock();
         auto accessErr = (*cookie)[kAccessErrKey].get<string>();
         auto cookiePath = (*cookie)[kCookiePathKey].get<string>();
-        auto is_hls = (*cookie)[kAccessHls].get<bool>();
+        auto cookie_is_hls = (*cookie)[kAccessHls].get<bool>();
         if (path.find(cookiePath) == 0) {
             //上次cookie是限定本目录
             if (accessErr.empty()) {
                 //上次鉴权成功
-                if(is_hls){
+                if(cookie_is_hls){
-                    //如果播放的是hls，那么刷新hls的cookie
+                    //如果播放的是hls，那么刷新hls的cookie(获取ts文件也会刷新)
                     cookie->updateTime();
                     cookie_from_header = false;
                 }
@@ -284,8 +284,8 @@ static void canAccessPath(TcpSession &sender, const Parser &parser, const MediaI
 
     bool is_hls = mediaInfo._schema == HLS_SCHEMA;
     //该用户从来未获取过cookie，这个时候我们广播是否允许该用户访问该http目录
-        HttpSession::HttpAccessPathInvoker accessPathInvoker = [callback, uid, path, is_dir, is_hls, mediaInfo]
+    HttpSession::HttpAccessPathInvoker accessPathInvoker = [callback, uid, path, is_dir, is_hls, mediaInfo]
-                (const string &errMsg, const string &cookie_path_in, int cookieLifeSecond) {
+            (const string &errMsg, const string &cookie_path_in, int cookieLifeSecond) {
         HttpServerCookie::Ptr cookie;
         if (cookieLifeSecond) {
             //本次鉴权设置了有效期，我们把鉴权结果缓存在cookie中
@@ -388,13 +388,13 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
             return;
         }
 
-        auto response_file = [](const HttpServerCookie::Ptr &cookie, const HttpFileManager::invoker &cb, const string &strFile, const Parser &parser) {
+        auto response_file = [file_exist](const HttpServerCookie::Ptr &cookie, const HttpFileManager::invoker &cb, const string &strFile, const Parser &parser) {
             StrCaseMap httpHeader;
             if (cookie) {
                 httpHeader["Set-Cookie"] = cookie->getCookie((*cookie)[kCookiePathKey].get<string>());
             }
             HttpSession::HttpResponseInvoker invoker = [&](const string &codeOut, const StrCaseMap &headerOut, const HttpBody::Ptr &body) {
-                if (cookie) {
+                if (cookie && file_exist) {
                     cookie->getLock();
                     auto is_hls = (*cookie)[kAccessHls].get<bool>();
                     if (is_hls) {

src/Record/HlsMediaSource.cpp

@@ -30,22 +30,29 @@ namespace mediakit{
 
 HlsCookieData::HlsCookieData(const MediaInfo &info) {
     _info = info;
+    _added = std::make_shared<bool>(false);
     addReaderCount();
 }
 
 void HlsCookieData::addReaderCount(){
-    if(!_added){
+    if(!*_added){
         auto src = dynamic_pointer_cast<HlsMediaSource>(MediaSource::find(HLS_SCHEMA,_info._vhost,_info._app,_info._streamid));
         if(src){
             src->modifyReaderCount(true);
-            _added = true;
+            *_added = true;
             _src = src;
+            _ring_reader = src->getRing()->attach(EventPollerPool::Instance().getPoller());
+            auto added = _added;
+            _ring_reader->setDetachCB([added](){
+                //HlsMediaSource已经销毁
+                *added = false;
+            });
         }
     }
 }
 
 HlsCookieData::~HlsCookieData() {
-    if (_added) {
+    if (*_added) {
         auto src = _src.lock();
         if (src) {
             src->modifyReaderCount(false);

src/Record/HlsMediaSource.h

@@ -31,32 +31,25 @@
 #include "Common/MediaSource.h"
 namespace mediakit{
 
-class HlsMediaSource;
-class HlsCookieData{
-public:
-    HlsCookieData(const MediaInfo &info);
-    ~HlsCookieData();
-    void addByteUsage(uint64_t bytes);
-private:
-    void addReaderCount();
-private:
-    uint64_t _bytes = 0;
-    MediaInfo _info;
-    bool _added = false;
-    weak_ptr<HlsMediaSource> _src;
-    Ticker _ticker;
-};
-
 class HlsMediaSource : public MediaSource {
 public:
     friend class HlsCookieData;
+    typedef RingBuffer<string> RingType;
     typedef std::shared_ptr<HlsMediaSource> Ptr;
     HlsMediaSource(const string &vhost, const string &app, const string &stream_id) : MediaSource(HLS_SCHEMA, vhost, app, stream_id){
         _readerCount = 0;
+        _ring = std::make_shared<RingType>();
     }
 
     virtual ~HlsMediaSource() = default;
 
+    /**
+	 * 	获取媒体源的环形缓冲
+	 */
+    const RingType::Ptr &getRing() const {
+        return _ring;
+    }
+
     /**
 	 * 获取播放器个数
 	 * @return
@@ -93,6 +86,23 @@ private:
 private:
     atomic_int _readerCount;
     bool _registed = false;
+    RingType::Ptr _ring;
+};
+
+class HlsCookieData{
+public:
+    HlsCookieData(const MediaInfo &info);
+    ~HlsCookieData();
+    void addByteUsage(uint64_t bytes);
+private:
+    void addReaderCount();
+private:
+    uint64_t _bytes = 0;
+    MediaInfo _info;
+    std::shared_ptr<bool> _added;
+    weak_ptr<HlsMediaSource> _src;
+    Ticker _ticker;
+    HlsMediaSource::RingType::RingReader::Ptr _ring_reader;
 };