mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2026-06-13 11:41:44 +08:00
优化与拦截代码
This commit is contained in:
xiongziliang
@@ -17,16 +17,19 @@
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using namespace toolkit;
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namespace mediakit {
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recursive_mutex MediaSource::g_mtxMediaSrc;
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MediaSource::SchemaVhostAppStreamMap MediaSource::g_mapMediaSrc;
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recursive_mutex s_media_source_mtx;
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MediaSource::SchemaVhostAppStreamMap s_media_source_map;
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MediaSource::MediaSource(const string &strSchema, const string &strVhost, const string &strApp, const string &strId) :
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_strSchema(strSchema), _strApp(strApp), _strId(strId) {
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if (strVhost.empty()) {
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_strVhost = DEFAULT_VHOST;
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MediaSource::MediaSource(const string &schema, const string &vhost, const string &app, const string &stream_id){
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GET_CONFIG(bool, enableVhost, General::kEnableVhost);
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if (!enableVhost) {
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_vhost = DEFAULT_VHOST;
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} else {
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_strVhost = strVhost;
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_vhost = vhost.empty() ? DEFAULT_VHOST : vhost;
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}
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_schema = schema;
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_app = app;
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_stream_id = stream_id;
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}
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MediaSource::~MediaSource() {
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@@ -34,26 +37,26 @@ MediaSource::~MediaSource() {
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}
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const string& MediaSource::getSchema() const {
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return _strSchema;
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return _schema;
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}
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const string& MediaSource::getVhost() const {
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return _strVhost;
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return _vhost;
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}
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const string& MediaSource::getApp() const {
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//获取该源的id
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return _strApp;
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return _app;
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}
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const string& MediaSource::getId() const {
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return _strId;
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return _stream_id;
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}
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vector<Track::Ptr> MediaSource::getTracks(bool trackReady) const {
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vector<Track::Ptr> MediaSource::getTracks(bool ready) const {
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auto strongPtr = _track_source.lock();
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if(strongPtr){
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return strongPtr->getTracks(trackReady);
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return strongPtr->getTracks(ready);
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}
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return vector<Track::Ptr>();
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}
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@@ -77,12 +80,13 @@ int MediaSource::totalReaderCount(){
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}
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return listener->totalReaderCount(*this);
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}
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bool MediaSource::seekTo(uint32_t ui32Stamp) {
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bool MediaSource::seekTo(uint32_t stamp) {
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auto listener = _listener.lock();
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if(!listener){
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return false;
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}
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return listener->seekTo(*this,ui32Stamp);
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return listener->seekTo(*this, stamp);
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}
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bool MediaSource::close(bool force) {
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@@ -121,12 +125,12 @@ bool MediaSource::isRecording(Recorder::type type){
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}
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void MediaSource::for_each_media(const function<void(const MediaSource::Ptr &src)> &cb) {
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decltype(g_mapMediaSrc) copy;
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decltype(s_media_source_map) copy;
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{
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//拷贝g_mapMediaSrc后再遍历，考虑到是高频使用的全局单例锁，并且在上锁时会执行回调代码
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//拷贝s_media_source_map后再遍历，考虑到是高频使用的全局单例锁，并且在上锁时会执行回调代码
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//很容易导致多个锁交叉死锁的情况，而且该函数使用频率不高，拷贝开销相对来说是可以接受的
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lock_guard<recursive_mutex> lock(g_mtxMediaSrc);
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copy = g_mapMediaSrc;
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lock_guard<recursive_mutex> lock(s_media_source_mtx);
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copy = s_media_source_map;
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}
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for (auto &pr0 : copy) {
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@@ -181,42 +185,75 @@ static void eraseIfEmpty(MAP &map, IT0 it0, IT1 it1, IT2 it2) {
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}
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}
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void MediaSource::findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, bool retry, const function<void(const MediaSource::Ptr &src)> &cb){
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auto src = MediaSource::find_l(info._schema, info._vhost, info._app, info._streamid, true);
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static MediaSource::Ptr find_l(const string &schema, const string &vhost_in, const string &app, const string &id, bool create_new) {
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string vhost = vhost_in;
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GET_CONFIG(bool,enableVhost,General::kEnableVhost);
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if(vhost.empty() || !enableVhost){
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vhost = DEFAULT_VHOST;
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}
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MediaSource::Ptr ret;
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{
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lock_guard<recursive_mutex> lock(s_media_source_mtx);
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//查找某一媒体源，找到后返回
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searchMedia(s_media_source_map, schema, vhost, app, id,
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[&](MediaSource::SchemaVhostAppStreamMap::iterator &it0, MediaSource::VhostAppStreamMap::iterator &it1,
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MediaSource::AppStreamMap::iterator &it2, MediaSource::StreamMap::iterator &it3) {
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ret = it3->second.lock();
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if (!ret) {
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//该对象已经销毁
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it2->second.erase(it3);
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eraseIfEmpty(s_media_source_map, it0, it1, it2);
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return false;
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}
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return true;
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});
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}
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if(!ret && create_new){
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//未查找媒体源，则创建一个
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ret = MediaSource::createFromMP4(schema, vhost, app, id);
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}
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return ret;
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}
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static void findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, bool retry,
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const function<void(const MediaSource::Ptr &src)> &cb){
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auto src = find_l(info._schema, info._vhost, info._app, info._streamid, true);
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if (src || !retry) {
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cb(src);
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return;
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}
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void *listener_tag = session.get();
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weak_ptr<TcpSession> weakSession = session;
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weak_ptr<TcpSession> weak_session = session;
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GET_CONFIG(int, maxWaitMS, General::kMaxStreamWaitTimeMS);
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auto onTimeout = session->getPoller()->doDelayTask(maxWaitMS, [cb, listener_tag]() {
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auto on_timeout = session->getPoller()->doDelayTask(maxWaitMS, [cb, listener_tag]() {
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//最多等待一定时间，如果这个时间内，流未注册上，那么返回未找到流
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NoticeCenter::Instance().delListener(listener_tag, Broadcast::kBroadcastMediaChanged);
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cb(nullptr);
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return 0;
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});
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auto cancelAll = [onTimeout, listener_tag]() {
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auto cancel_all = [on_timeout, listener_tag]() {
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//取消延时任务，防止多次回调
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onTimeout->cancel();
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on_timeout->cancel();
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//取消媒体注册事件监听
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NoticeCenter::Instance().delListener(listener_tag, Broadcast::kBroadcastMediaChanged);
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};
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function<void()> closePlayer = [cb, cancelAll]() {
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cancelAll();
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function<void()> close_player = [cb, cancel_all]() {
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cancel_all();
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//告诉播放器，流不存在，这样会立即断开播放器
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cb(nullptr);
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};
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auto onRegist = [weakSession, info, cb, cancelAll](BroadcastMediaChangedArgs) {
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auto strongSession = weakSession.lock();
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if (!strongSession) {
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auto on_regist = [weak_session, info, cb, cancel_all](BroadcastMediaChangedArgs) {
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auto strong_session = weak_session.lock();
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if (!strong_session) {
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//自己已经销毁
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cancelAll();
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cancel_all();
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return;
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}
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@@ -229,11 +266,11 @@ void MediaSource::findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSe
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return;
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}
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cancelAll();
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cancel_all();
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//播发器请求的流终于注册上了，切换到自己的线程再回复
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strongSession->async([weakSession, info, cb]() {
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auto strongSession = weakSession.lock();
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strong_session->async([weak_session, info, cb]() {
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auto strongSession = weak_session.lock();
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if (!strongSession) {
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return;
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}
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@@ -244,9 +281,9 @@ void MediaSource::findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSe
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};
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//监听媒体注册事件
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NoticeCenter::Instance().addListener(listener_tag, Broadcast::kBroadcastMediaChanged, onRegist);
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NoticeCenter::Instance().addListener(listener_tag, Broadcast::kBroadcastMediaChanged, on_regist);
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//广播未找到流,此时可以立即去拉流，这样还来得及
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastNotFoundStream, info, static_cast<SockInfo &>(*session), closePlayer);
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastNotFoundStream, info, static_cast<SockInfo &>(*session), close_player);
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}
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void MediaSource::findAsync(const MediaInfo &info, const std::shared_ptr<TcpSession> &session,const function<void(const Ptr &src)> &cb){
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@@ -257,55 +294,10 @@ MediaSource::Ptr MediaSource::find(const string &schema, const string &vhost, co
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return find_l(schema, vhost, app, id, false);
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}
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MediaSource::Ptr MediaSource::find_l(const string &schema, const string &vhost_tmp, const string &app, const string &id, bool bMake) {
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string vhost = vhost_tmp;
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if(vhost.empty()){
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vhost = DEFAULT_VHOST;
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}
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GET_CONFIG(bool,enableVhost,General::kEnableVhost);
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if(!enableVhost){
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vhost = DEFAULT_VHOST;
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}
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MediaSource::Ptr ret;
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{
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lock_guard<recursive_mutex> lock(g_mtxMediaSrc);
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//查找某一媒体源，找到后返回
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searchMedia(g_mapMediaSrc, schema, vhost, app, id, [&](SchemaVhostAppStreamMap::iterator &it0,
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VhostAppStreamMap::iterator &it1,
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AppStreamMap::iterator &it2,
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StreamMap::iterator &it3) {
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ret = it3->second.lock();
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if (!ret) {
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//该对象已经销毁
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it2->second.erase(it3);
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eraseIfEmpty(g_mapMediaSrc, it0, it1, it2);
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return false;
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}
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return true;
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});
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}
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if(!ret && bMake){
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//未查找媒体源，则创建一个
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ret = createFromMP4(schema, vhost, app, id);
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}
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return ret;
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}
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void MediaSource::regist() {
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GET_CONFIG(bool,enableVhost,General::kEnableVhost);
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if(!enableVhost){
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_strVhost = DEFAULT_VHOST;
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}
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//注册该源，注册后服务器才能找到该源
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{
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lock_guard<recursive_mutex> lock(g_mtxMediaSrc);
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g_mapMediaSrc[_strSchema][_strVhost][_strApp][_strId] = shared_from_this();
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}
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static string getTrackInfoStr(const TrackSource *track_src){
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_StrPrinter codec_info;
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auto tracks = getTracks(true);
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for(auto &track : tracks) {
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auto tracks = track_src->getTracks(true);
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for (auto &track : tracks) {
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auto codec_type = track->getTrackType();
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codec_info << track->getCodecName();
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switch (codec_type) {
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@@ -329,45 +321,51 @@ void MediaSource::regist() {
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break;
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}
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}
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return codec_info;
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}
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InfoL << _strSchema << " " << _strVhost << " " << _strApp << " " << _strId << " " << codec_info;
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaChanged, true, *this);
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void MediaSource::emitEvent(bool regist){
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auto listener = _listener.lock();
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if (listener) {
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listener->onRegist(*this, true);
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//触发回调
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listener->onRegist(*this, regist);
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}
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//触发广播
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaChanged, regist, *this);
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InfoL << (regist ? "媒体注册:" : "媒体注销:") << _schema << " " << _vhost << " " << _app << " " << _stream_id << " " << getTrackInfoStr(this);
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}
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void MediaSource::regist() {
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{
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//减小互斥锁临界区
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lock_guard<recursive_mutex> lock(s_media_source_mtx);
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s_media_source_map[_schema][_vhost][_app][_stream_id] = shared_from_this();
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}
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emitEvent(true);
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}
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//反注册该源
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bool MediaSource::unregist() {
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bool ret;
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{
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lock_guard<recursive_mutex> lock(g_mtxMediaSrc);
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ret = searchMedia(g_mapMediaSrc, _strSchema, _strVhost, _strApp, _strId,
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[&](SchemaVhostAppStreamMap::iterator &it0,
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VhostAppStreamMap::iterator &it1,
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AppStreamMap::iterator &it2,
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StreamMap::iterator &it3) {
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auto strongMedia = it3->second.lock();
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if (strongMedia && this != strongMedia.get()) {
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//不是自己,不允许反注册
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return false;
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}
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it2->second.erase(it3);
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eraseIfEmpty(g_mapMediaSrc, it0, it1, it2);
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return true;
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});
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//减小互斥锁临界区
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lock_guard<recursive_mutex> lock(s_media_source_mtx);
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ret = searchMedia(s_media_source_map, _schema, _vhost, _app, _stream_id,
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[&](SchemaVhostAppStreamMap::iterator &it0, VhostAppStreamMap::iterator &it1,
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AppStreamMap::iterator &it2, StreamMap::iterator &it3) {
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auto strong_self = it3->second.lock();
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if (strong_self && this != strong_self.get()) {
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//不是自己,不允许反注册
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return false;
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}
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it2->second.erase(it3);
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eraseIfEmpty(s_media_source_map, it0, it1, it2);
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return true;
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});
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}
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if(ret){
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InfoL << _strSchema << " " << _strVhost << " " << _strApp << " " << _strId;
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaChanged, false, *this);
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auto listener = _listener.lock();
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if (listener) {
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listener->onRegist(*this, false);
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}
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if (ret) {
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emitEvent(false);
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}
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return ret;
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}
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@@ -377,67 +375,87 @@ bool MediaSource::unregist() {
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void MediaInfo::parse(const string &url){
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//string url = "rtsp://127.0.0.1:8554/live/id?key=val&a=1&&b=2&vhost=vhost.com";
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auto schema_pos = url.find("://");
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if(schema_pos != string::npos){
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_schema = url.substr(0,schema_pos);
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}else{
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if (schema_pos != string::npos) {
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_schema = url.substr(0, schema_pos);
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} else {
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schema_pos = -3;
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}
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auto split_vec = split(url.substr(schema_pos + 3),"/");
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if(split_vec.size() > 0){
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auto split_vec = split(url.substr(schema_pos + 3), "/");
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if (split_vec.size() > 0) {
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auto vhost = split_vec[0];
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auto pos = vhost.find(":");
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if(pos != string::npos){
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_host = _vhost = vhost.substr(0,pos);
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if (pos != string::npos) {
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_host = _vhost = vhost.substr(0, pos);
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_port = vhost.substr(pos + 1);
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} else{
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} else {
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_host = _vhost = vhost;
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}
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if(_vhost == "localhost" || INADDR_NONE != inet_addr(_vhost.data())){
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if (_vhost == "localhost" || INADDR_NONE != inet_addr(_vhost.data())) {
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//如果访问的是localhost或ip，那么则为默认虚拟主机
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_vhost = DEFAULT_VHOST;
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}
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}
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if(split_vec.size() > 1){
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if (split_vec.size() > 1) {
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_app = split_vec[1];
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}
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if(split_vec.size() > 2){
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string steamid;
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for(int i = 2 ; i < split_vec.size() ; ++i){
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steamid.append(split_vec[i] + "/");
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if (split_vec.size() > 2) {
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string stream_id;
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for (int i = 2; i < split_vec.size(); ++i) {
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stream_id.append(split_vec[i] + "/");
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}
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if(steamid.back() == '/'){
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steamid.pop_back();
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if (stream_id.back() == '/') {
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stream_id.pop_back();
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}
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auto pos = steamid.find("?");
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if(pos != string::npos){
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_streamid = steamid.substr(0,pos);
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_param_strs = steamid.substr(pos + 1);
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auto pos = stream_id.find("?");
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if (pos != string::npos) {
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_streamid = stream_id.substr(0, pos);
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_param_strs = stream_id.substr(pos + 1);
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auto params = Parser::parseArgs(_param_strs);
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if(params.find(VHOST_KEY) != params.end()){
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if (params.find(VHOST_KEY) != params.end()) {
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_vhost = params[VHOST_KEY];
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}
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} else{
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_streamid = steamid;
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} else {
|
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_streamid = stream_id;
|
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}
|
||||
}
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|
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GET_CONFIG(bool,enableVhost,General::kEnableVhost);
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if(!enableVhost || _vhost.empty()){
|
||||
GET_CONFIG(bool, enableVhost, General::kEnableVhost);
|
||||
if (!enableVhost || _vhost.empty()) {
|
||||
//如果关闭虚拟主机或者虚拟主机为空，则设置虚拟主机为默认
|
||||
_vhost = DEFAULT_VHOST;
|
||||
}
|
||||
}
|
||||
|
||||
MediaSource::Ptr MediaSource::createFromMP4(const string &schema, const string &vhost, const string &app, const string &stream, const string &file_path , bool check_app){
|
||||
GET_CONFIG(string, appName, Record::kAppName);
|
||||
if (check_app && app != appName) {
|
||||
return nullptr;
|
||||
}
|
||||
#ifdef ENABLE_MP4
|
||||
try {
|
||||
MP4Reader::Ptr pReader(new MP4Reader(vhost, app, stream, file_path));
|
||||
pReader->startReadMP4();
|
||||
return MediaSource::find(schema, vhost, app, stream);
|
||||
} catch (std::exception &ex) {
|
||||
WarnL << ex.what();
|
||||
return nullptr;
|
||||
}
|
||||
#else
|
||||
WarnL << "创建MP4点播失败，请编译时打开\"ENABLE_MP4\"选项";
|
||||
return nullptr;
|
||||
#endif //ENABLE_MP4
|
||||
}
|
||||
|
||||
/////////////////////////////////////MediaSourceEvent//////////////////////////////////////
|
||||
|
||||
void MediaSourceEvent::onNoneReader(MediaSource &sender){
|
||||
GET_CONFIG(string, recordApp, Record::kAppName);
|
||||
GET_CONFIG(string, record_app, Record::kAppName);
|
||||
GET_CONFIG(int, stream_none_reader_delay, General::kStreamNoneReaderDelayMS);
|
||||
|
||||
//如果mp4点播, 无人观看时我们强制关闭点播
|
||||
bool is_mp4_vod = sender.getApp() == recordApp;
|
||||
bool is_mp4_vod = sender.getApp() == record_app;
|
||||
|
||||
//没有任何人观看该视频源，表明该源可以关闭了
|
||||
weak_ptr<MediaSource> weakSender = sender.shared_from_this();
|
||||
@@ -475,26 +493,64 @@ void MediaSourceEvent::onNoneReader(MediaSource &sender){
|
||||
}, nullptr);
|
||||
}
|
||||
|
||||
MediaSource::Ptr MediaSource::createFromMP4(const string &schema, const string &vhost, const string &app, const string &stream, const string &filePath , bool checkApp){
|
||||
GET_CONFIG(string, appName, Record::kAppName);
|
||||
if (checkApp && app != appName) {
|
||||
return nullptr;
|
||||
bool MediaSourceEventInterceptor::seekTo(MediaSource &sender, uint32_t stamp) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
return false;
|
||||
}
|
||||
#ifdef ENABLE_MP4
|
||||
try {
|
||||
MP4Reader::Ptr pReader(new MP4Reader(vhost, app, stream, filePath));
|
||||
pReader->startReadMP4();
|
||||
return MediaSource::find(schema, vhost, app, stream);
|
||||
} catch (std::exception &ex) {
|
||||
WarnL << ex.what();
|
||||
return nullptr;
|
||||
}
|
||||
#else
|
||||
WarnL << "创建MP4点播失败，请编译时打开\"ENABLE_MP4\"选项";
|
||||
return nullptr;
|
||||
#endif //ENABLE_MP4
|
||||
return listener->seekTo(sender, stamp);
|
||||
}
|
||||
|
||||
bool MediaSourceEventInterceptor::close(MediaSource &sender, bool force) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
return false;
|
||||
}
|
||||
return listener->close(sender, force);
|
||||
}
|
||||
|
||||
int MediaSourceEventInterceptor::totalReaderCount(MediaSource &sender) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
return sender.readerCount();
|
||||
}
|
||||
return listener->totalReaderCount(sender);
|
||||
}
|
||||
|
||||
void MediaSourceEventInterceptor::onNoneReader(MediaSource &sender) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
MediaSourceEvent::onNoneReader(sender);
|
||||
return;
|
||||
}
|
||||
listener->onNoneReader(sender);
|
||||
}
|
||||
|
||||
void MediaSourceEventInterceptor::onRegist(MediaSource &sender, bool regist) {
|
||||
auto listener = _listener.lock();
|
||||
if (listener) {
|
||||
listener->onRegist(sender, regist);
|
||||
}
|
||||
}
|
||||
|
||||
bool MediaSourceEventInterceptor::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
return false;
|
||||
}
|
||||
return listener->setupRecord(sender, type, start, custom_path);
|
||||
}
|
||||
|
||||
bool MediaSourceEventInterceptor::isRecording(MediaSource &sender, Recorder::type type) {
|
||||
auto listener = _listener.lock();
|
||||
if (!listener) {
|
||||
return false;
|
||||
}
|
||||
return listener->isRecording(sender, type);
|
||||
}
|
||||
|
||||
/////////////////////////////////////FlushPolicy//////////////////////////////////////
|
||||
|
||||
static bool isFlushAble_default(bool is_video, uint32_t last_stamp, uint32_t new_stamp, int cache_size) {
|
||||
if (new_stamp + 500 < last_stamp) {
|
||||
//时间戳回退比较大(可能seek中)，由于rtp中时间戳是pts，是可能存在一定程度的回退的
|
||||
|
||||
Reference in New Issue
Block a user