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https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-22 10:40:05 +08:00
实现hls按需拉流
This commit is contained in:
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54736859d4
commit
4b4c4e0cec
@ -94,14 +94,12 @@ typedef struct {
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/**
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* 在http文件服务器中,收到http访问文件或目录的广播,通过该事件控制访问http目录的权限
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* @param parser http请求内容对象
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* @param url_info 请求url相关信息
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* @param path 文件绝对路径
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* @param is_dir path是否为文件夹
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* @param invoker 执行invoker返回本次访问文件的结果
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* @param sender http客户端相关信息
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*/
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void (API_CALL *on_mk_http_access)(const mk_parser parser,
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const mk_media_info url_info,
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const char *path,
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int is_dir,
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const mk_http_access_path_invoker invoker,
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@ -111,12 +109,10 @@ typedef struct {
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* 在http文件服务器中,收到http访问文件或目录前的广播,通过该事件可以控制http url到文件路径的映射
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* 在该事件中通过自行覆盖path参数,可以做到譬如根据虚拟主机或者app选择不同http根目录的目的
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* @param parser http请求内容对象
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* @param url_info 请求url相关信息
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* @param path 文件绝对路径,覆盖之可以重定向到其他文件
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* @param sender http客户端相关信息
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*/
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void (API_CALL *on_mk_http_before_access)(const mk_parser parser,
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const mk_media_info url_info,
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char *path,
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const mk_tcp_session sender);
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@ -70,7 +70,6 @@ API_EXPORT void API_CALL mk_events_listen(const mk_events *events){
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NoticeCenter::Instance().addListener(&s_tag,Broadcast::kBroadcastHttpAccess,[](BroadcastHttpAccessArgs){
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if(s_events.on_mk_http_access){
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s_events.on_mk_http_access((mk_parser)&parser,
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(mk_media_info)&args,
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path.c_str(),
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is_dir,
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(mk_http_access_path_invoker)&invoker,
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@ -85,7 +84,6 @@ API_EXPORT void API_CALL mk_events_listen(const mk_events *events){
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char path_c[4 * 1024] = {0};
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strcpy(path_c,path.c_str());
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s_events.on_mk_http_before_access((mk_parser) &parser,
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(mk_media_info) &args,
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path_c,
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(mk_tcp_session) &sender);
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path = path_c;
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@ -198,14 +198,12 @@ void API_CALL on_mk_http_request(const mk_parser parser,
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/**
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* 在http文件服务器中,收到http访问文件或目录的广播,通过该事件控制访问http目录的权限
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* @param parser http请求内容对象
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* @param url_info 请求url相关信息
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* @param path 文件绝对路径
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* @param is_dir path是否为文件夹
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* @param invoker 执行invoker返回本次访问文件的结果
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* @param sender http客户端相关信息
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*/
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void API_CALL on_mk_http_access(const mk_parser parser,
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const mk_media_info url_info,
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const char *path,
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int is_dir,
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const mk_http_access_path_invoker invoker,
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@ -236,12 +234,10 @@ void API_CALL on_mk_http_access(const mk_parser parser,
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* 在http文件服务器中,收到http访问文件或目录前的广播,通过该事件可以控制http url到文件路径的映射
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* 在该事件中通过自行覆盖path参数,可以做到譬如根据虚拟主机或者app选择不同http根目录的目的
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* @param parser http请求内容对象
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* @param url_info 请求url相关信息
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* @param path 文件绝对路径,覆盖之可以重定向到其他文件
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* @param sender http客户端相关信息
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*/
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void API_CALL on_mk_http_before_access(const mk_parser parser,
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const mk_media_info url_info,
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char *path,
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const mk_tcp_session sender) {
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log_printf(LOG_LEV,
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@ -25,10 +25,10 @@ flowThreshold=1024
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#ZLMediaKit会最多让播放器等待maxStreamWaitMS毫秒
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#如果在这个时间内,该流注册成功,那么会立即返回播放器播放成功
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#否则返回播放器未找到该流,该机制的目的是可以先播放再推流
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maxStreamWaitMS=5000
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maxStreamWaitMS=15000
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#某个流无人观看时,触发hook.on_stream_none_reader事件的最大等待时间,单位毫秒
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#在配合hook.on_stream_none_reader事件时,可以做到无人观看自动停止拉流或停止接收推流
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streamNoneReaderDelayMS=5000
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streamNoneReaderDelayMS=20000
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#是否开启低延时模式,该模式下禁用MSG_MORE,启用TCP_NODEALY,延时将降低,但数据发送性能将降低
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ultraLowDelay=1
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#拉流代理是否添加静音音频(直接拉流模式本协议无效)
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@ -834,7 +834,7 @@ void installWebApi() {
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<< allArgs["stream"] << "?vhost="
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<< allArgs["vhost"];
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addFFmpegSource("http://live.hkstv.hk.lxdns.com/live/hks2/playlist.m3u8",/** ffmpeg拉流支持任意编码格式任意协议 **/
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addFFmpegSource("http://hls-ott-zhibo.wasu.tv/live/272/index.m3u8",/** ffmpeg拉流支持任意编码格式任意协议 **/
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dst_url,
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(1000 * timeout_sec) - 500,
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[invoker,val,headerOut](const SockException &ex,const string &key){
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@ -441,7 +441,7 @@ void installWebHook(){
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//如果没有url参数,客户端又不支持cookie,那么会根据ip和端口追踪用户
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//追踪用户的目的是为了缓存上次鉴权结果,减少鉴权次数,提高性能
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastHttpAccess,[](BroadcastHttpAccessArgs){
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if(sender.get_peer_ip() == "127.0.0.1" && args._param_strs == hook_adminparams){
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if(sender.get_peer_ip() == "127.0.0.1" && parser.Params() == hook_adminparams){
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//如果是本机或超级管理员访问,那么不做访问鉴权;权限有效期1个小时
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invoker("","",60 * 60);
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return;
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@ -87,8 +87,8 @@ const string kPublishToMP4 = GENERAL_FIELD"publishToMP4";
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onceToken token([](){
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mINI::Instance()[kFlowThreshold] = 1024;
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mINI::Instance()[kStreamNoneReaderDelayMS] = 5 * 1000;
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mINI::Instance()[kMaxStreamWaitTimeMS] = 5 * 1000;
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mINI::Instance()[kStreamNoneReaderDelayMS] = 20 * 1000;
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mINI::Instance()[kMaxStreamWaitTimeMS] = 15 * 1000;
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mINI::Instance()[kEnableVhost] = 0;
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mINI::Instance()[kUltraLowDelay] = 1;
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mINI::Instance()[kAddMuteAudio] = 1;
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@ -86,12 +86,12 @@ extern const string kBroadcastHttpRequest;
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//在http文件服务器中,收到http访问文件或目录的广播,通过该事件控制访问http目录的权限
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extern const string kBroadcastHttpAccess;
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#define BroadcastHttpAccessArgs const Parser &parser,const MediaInfo &args,const string &path,const bool &is_dir,const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender
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#define BroadcastHttpAccessArgs const Parser &parser,const string &path,const bool &is_dir,const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender
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//在http文件服务器中,收到http访问文件或目录前的广播,通过该事件可以控制http url到文件路径的映射
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//在该事件中通过自行覆盖path参数,可以做到譬如根据虚拟主机或者app选择不同http根目录的目的
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extern const string kBroadcastHttpBeforeAccess;
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#define BroadcastHttpBeforeAccessArgs const Parser &parser,const MediaInfo &args,string &path,TcpSession &sender
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#define BroadcastHttpBeforeAccessArgs const Parser &parser,string &path,TcpSession &sender
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//该流是否需要认证?是的话调用invoker并传入realm,否则传入空的realm.如果该事件不监听则不认证
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extern const string kBroadcastOnGetRtspRealm;
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@ -218,16 +218,13 @@ static bool end_of(const string &str, const string &substr){
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};
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//拦截hls的播放请求
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static bool emitHlsPlayed(BroadcastHttpAccessArgs){
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static bool emitHlsPlayed(const Parser &parser, const MediaInfo &mediaInfo, const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender){
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//访问的hls.m3u8结尾,我们转换成kBroadcastMediaPlayed事件
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Broadcast::AuthInvoker mediaAuthInvoker = [invoker,path](const string &err){
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Broadcast::AuthInvoker mediaAuthInvoker = [invoker](const string &err){
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//cookie有效期为kHlsCookieSecond
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invoker(err,"",kHlsCookieSecond);
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};
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auto args_copy = args;
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replace(args_copy._streamid,kHlsSuffix,"");
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return NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed,args_copy,mediaAuthInvoker,sender);
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return NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed,mediaInfo,mediaAuthInvoker,sender);
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}
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@ -284,7 +281,7 @@ static void canAccessPath(TcpSession &sender, const Parser &parser, const MediaI
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HttpCookieManager::Instance().delCookie(cookie);
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}
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bool is_hls = end_of(path,kHlsSuffix);
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bool is_hls = mediaInfo._schema == HLS_SCHEMA;
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//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
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HttpSession::HttpAccessPathInvoker accessPathInvoker = [callback, uid, path, is_dir, is_hls, mediaInfo]
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(const string &errMsg, const string &cookie_path_in, int cookieLifeSecond) {
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@ -308,7 +305,6 @@ static void canAccessPath(TcpSession &sender, const Parser &parser, const MediaI
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(*cookie)[kAccessHls].set<bool>(is_hls);
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if(is_hls){
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//hls相关信息
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replace(const_cast<string &>(mediaInfo._streamid),kHlsSuffix,"");
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(*cookie)[kHlsData].set<HlsCookieData>(mediaInfo);
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}
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callback(errMsg, cookie);
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@ -317,13 +313,13 @@ static void canAccessPath(TcpSession &sender, const Parser &parser, const MediaI
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}
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};
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if (is_hls && emitHlsPlayed(parser, mediaInfo, path, is_dir, accessPathInvoker, sender)) {
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if (is_hls && emitHlsPlayed(parser, mediaInfo, accessPathInvoker, sender)) {
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//是hls的播放鉴权,拦截之
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return;
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}
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//事件未被拦截,则认为是http下载请求
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bool flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpAccess, parser, mediaInfo, path, is_dir, accessPathInvoker, sender);
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bool flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpAccess, parser, path, is_dir, accessPathInvoker, sender);
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if (!flag) {
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//此事件无人监听,我们默认都有权限访问
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callback("", nullptr);
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@ -357,13 +353,24 @@ static string pathCat(const string &a, const string &b){
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* @param cb 回调对象
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*/
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static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo &mediaInfo, const string &strFile, const HttpFileManager::invoker &cb) {
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if (!File::is_file(strFile.data())) {
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bool is_hls = end_of(strFile, kHlsSuffix);
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if (!is_hls && !File::is_file(strFile.data())) {
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//文件不存在且不是hls,那么直接返回404
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sendNotFound(cb);
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return;
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}
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if(is_hls){
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//hls,那么移除掉后缀获取真实的stream_id并且修改协议为HLS
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const_cast<string &>(mediaInfo._schema) = HLS_SCHEMA;
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replace(const_cast<string &>(mediaInfo._streamid), kHlsSuffix, "");
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}
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weak_ptr<TcpSession> weakSession = sender.shared_from_this();
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//判断是否有权限访问该文件
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canAccessPath(sender, parser, mediaInfo, false, [cb, strFile, parser](const string &errMsg, const HttpServerCookie::Ptr &cookie) {
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canAccessPath(sender, parser, mediaInfo, false, [cb, strFile, parser, is_hls, mediaInfo, weakSession](const string &errMsg, const HttpServerCookie::Ptr &cookie) {
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if (!errMsg.empty()) {
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//文件鉴权失败
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StrCaseMap headerOut;
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if (cookie) {
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headerOut["Set-Cookie"] = cookie->getCookie((*cookie)[kCookiePathKey].get<string>());
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@ -372,12 +379,14 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
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return;
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}
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auto response_file = [](const HttpServerCookie::Ptr &cookie, const HttpFileManager::invoker &cb, const string &strFile, const Parser &parser) {
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StrCaseMap httpHeader;
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if (cookie) {
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httpHeader["Set-Cookie"] = cookie->getCookie((*cookie)[kCookiePathKey].get<string>());
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}
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HttpSession::HttpResponseInvoker invoker = [&](const string &codeOut, const StrCaseMap &headerOut, const HttpBody::Ptr &body) {
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if (cookie) {
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cookie->getLock();
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auto is_hls = (*cookie)[kAccessHls].get<bool>();
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if (is_hls) {
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(*cookie)[kHlsData].get<HlsCookieData>().addByteUsage(body->remainSize());
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@ -386,6 +395,23 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
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cb(codeOut.data(), getContentType(strFile.data()), headerOut, body);
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};
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invoker.responseFile(parser.getValues(), httpHeader, strFile);
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};
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if (!is_hls) {
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//不是hls,直接回复
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response_file(cookie, cb, strFile, parser);
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} else {
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//文件不存在,那么说明是hls,我们等待其生成并延后回复
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auto strongSession = weakSession.lock();
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if(!strongSession){
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//http客户端已经断开,不需要回复
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return;
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}
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MediaSource::findAsync(mediaInfo, strongSession, [response_file, cookie, cb, strFile, parser](const MediaSource::Ptr &src) {
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//hls已经生成或者超时后仍未生成,那么不管怎么样都返回客户端
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response_file(cookie, cb, strFile, parser);
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});
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}
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});
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}
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@ -393,7 +419,7 @@ static string getFilePath(const Parser &parser,const MediaInfo &mediaInfo, TcpSe
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GET_CONFIG(bool, enableVhost, General::kEnableVhost);
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GET_CONFIG(string, rootPath, Http::kRootPath);
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auto ret = File::absolutePath(enableVhost ? mediaInfo._vhost + parser.Url() : parser.Url(), rootPath);
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpBeforeAccess, parser, mediaInfo, ret, sender);
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NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpBeforeAccess, parser, ret, sender);
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return std::move(ret);
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}
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@ -44,10 +44,7 @@ class HlsMediaSource : public MediaSource {
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public:
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friend class HlsCookieData;
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typedef std::shared_ptr<HlsMediaSource> Ptr;
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HlsMediaSource(const string &vhost,
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const string &app,
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const string &stream_id) :
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MediaSource(HLS_SCHEMA, vhost, app, stream_id){
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HlsMediaSource(const string &vhost, const string &app, const string &stream_id) : MediaSource(HLS_SCHEMA, vhost, app, stream_id){
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_readerCount = 0;
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}
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