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This commit is contained in:
xiongziliang 2021-06-30 23:35:19 +08:00
parent c470016316
commit 09fa6b7aae
1 changed files with 26 additions and 67 deletions
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93
src/Common/MediaSource.cpp
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@ -257,44 +257,6 @@ void MediaSource::for_each_media(const function<void(const Ptr &src)> &cb,
}
}
template<typename MAP, typename FUNC>
static bool searchMedia(MAP &map, const string &schema, const string &vhost, const string &app, const string &id, FUNC &&func) {
auto it0 = map.find(schema);
if (it0 == map.end()) {
//未找到协议
return false;
}
auto it1 = it0->second.find(vhost);
if (it1 == it0->second.end()) {
//未找到vhost
return false;
}
auto it2 = it1->second.find(app);
if (it2 == it1->second.end()) {
//未找到app
return false;
}
auto it3 = it2->second.find(id);
if (it3 == it2->second.end()) {
//未找到streamId
return false;
}
return func(it0, it1, it2, it3);
}
template<typename MAP, typename IT0, typename IT1, typename IT2>
static void eraseIfEmpty(MAP &map, IT0 it0, IT1 it1, IT2 it2) {
if (it2->second.empty()) {
it1->second.erase(it2);
if (it1->second.empty()) {
it0->second.erase(it1);
if (it0->second.empty()) {
map.erase(it0);
}
}
}
}
static MediaSource::Ptr find_l(const string &schema, const string &vhost_in, const string &app, const string &id, bool create_new) {
string vhost = vhost_in;
GET_CONFIG(bool,enableVhost,General::kEnableVhost);
@ -303,22 +265,7 @@ static MediaSource::Ptr find_l(const string &schema, const string &vhost_in, con
}
MediaSource::Ptr ret;
{
lock_guard<recursive_mutex> lock(s_media_source_mtx);
//查找某一媒体源，找到后返回
searchMedia(s_media_source_map, schema, vhost, app, id,
[&](MediaSource::SchemaVhostAppStreamMap::iterator &it0, MediaSource::VhostAppStreamMap::iterator &it1,
MediaSource::AppStreamMap::iterator &it2, MediaSource::StreamMap::iterator &it3) {
ret = it3->second.lock();
if (!ret) {
//该对象已经销毁
it2->second.erase(it3);
eraseIfEmpty(s_media_source_map, it0, it1, it2);
return false;
}
return true;
});
}
MediaSource::for_each_media([&](const MediaSource::Ptr &src) { ret = std::move(const_cast<MediaSource::Ptr &>(src)); }, schema, vhost, app, id);
if(!ret && create_new && schema != HLS_SCHEMA){
//未查找媒体源，则读取mp4创建一个
@ -440,24 +387,36 @@ void MediaSource::regist() {
emitEvent(true);
}
template<typename MAP, typename First, typename ...KeyTypes>
static bool erase_media_source(bool &hit, const MediaSource *thiz, MAP &map, const First &first, const KeyTypes &...keys) {
auto it = map.find(first);
if (it != map.end() && erase_media_source(hit, thiz, it->second, keys...)) {
map.erase(it);
}
return map.empty();
}
template<typename MAP, typename First>
static bool erase_media_source(bool &hit, const MediaSource *thiz, MAP &map, const First &first) {
auto it = map.find(first);
if (it != map.end()) {
auto src = it->second.lock();
if (!src || src.get() == thiz) {
//对象已经销毁或者对象就是自己，那么移除之
map.erase(it);
hit = true;
}
}
return map.empty();
}
//反注册该源
bool MediaSource::unregist() {
bool ret;
bool ret = false;
{
//减小互斥锁临界区
lock_guard<recursive_mutex> lock(s_media_source_mtx);
ret = searchMedia(s_media_source_map, _schema, _vhost, _app, _stream_id,
[&](SchemaVhostAppStreamMap::iterator &it0, VhostAppStreamMap::iterator &it1,
AppStreamMap::iterator &it2, StreamMap::iterator &it3) {
auto strong_self = it3->second.lock();
if (strong_self && this != strong_self.get()) {
//不是自己,不允许反注册
return false;
}
it2->second.erase(it3);
eraseIfEmpty(s_media_source_map, it0, it1, it2);
return true;
});
erase_media_source(ret, this, s_media_source_map, _schema, _vhost, _app, _stream_id);
}
if (ret) {