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hls m3u8文件直接通过内存读写

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ziyue
2022-02-11 16:21:19 +08:00
parent 642c9c075a
commit 49fc17d7e0
9 changed files with 96 additions and 69 deletions
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42
src/Http/HttpFileManager.cpp
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@@ -399,7 +399,8 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
return;
}
auto response_file = [file_exist, is_hls](const HttpServerCookie::Ptr &cookie, const HttpFileManager::invoker &cb, const string &strFile, const Parser &parser) {
auto response_file = [file_exist, is_hls](const HttpServerCookie::Ptr &cookie, const HttpFileManager::invoker &cb,
const string &strFile, const Parser &parser, bool is_path = true) {
StrCaseMap httpHeader;
if (cookie) {
httpHeader["Set-Cookie"] = cookie->getCookie(cookie->getAttach<HttpCookieAttachment>()._path);
@@ -413,7 +414,7 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
}
cb(code, HttpFileManager::getContentType(strFile.data()), headerOut, body);
};
invoker.responseFile(parser.getHeader(), httpHeader, strFile, !is_hls);
invoker.responseFile(parser.getHeader(), httpHeader, strFile, !is_hls, is_path);
};
if (!is_hls) {
@@ -429,6 +430,13 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
have_find_media_src = attach._have_find_media_source;
if (!have_find_media_src) {
const_cast<HttpCookieAttachment &>(attach)._have_find_media_source = true;
} else {
auto src = attach._hls_data->getMediaSource();
if (src) {
//直接从内存获取m3u8索引文件(而不是从文件系统)
response_file(cookie, cb, src->getIndexFile(), parser, false);
return;
}
}
}
if (have_find_media_src) {
@@ -440,13 +448,11 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
MediaSource::findAsync(mediaInfo, strongSession, [response_file, cookie, cb, strFile, parser](const MediaSource::Ptr &src) {
if (cookie) {
//尝试添加HlsMediaSource的观看人数(HLS是按需生成的，这样可以触发HLS文件的生成)
cookie->getAttach<HttpCookieAttachment>()._hls_data->addByteUsage(0);
}
if (src && File::is_file(strFile.data())) {
//流和m3u8文件都存在，那么直接返回文件
response_file(cookie, cb, strFile, parser);
return;
auto &attach = cookie->getAttach<HttpCookieAttachment>();
attach._hls_data->addByteUsage(0);
attach._hls_data->setMediaSource(dynamic_pointer_cast<HlsMediaSource>(src));
}
auto hls = dynamic_pointer_cast<HlsMediaSource>(src);
if (!hls) {
//流不存在，那么直接返回文件(相当于纯粹的HLS文件服务器,但是会挂起播放器15秒左右(用于等待HLS流的注册))
@@ -454,9 +460,9 @@ static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo
return;
}
//流存在，但是m3u8文件不存在，那么等待生成m3u8文件(HLS源注册后，并不会立即生成HLS文件，有人观看才会按需生成HLS文件)
hls->waitForFile([response_file, cookie, cb, strFile, parser]() {
response_file(cookie, cb, strFile, parser);
//可能异步获取m3u8索引文件
hls->getIndexFile([response_file, cookie, cb, parser](const string &file) {
response_file(cookie, cb, file, parser, false);
});
});
});
@@ -567,10 +573,18 @@ HttpResponseInvokerImp::HttpResponseInvokerImp(const HttpResponseInvokerImp::Htt
void HttpResponseInvokerImp::responseFile(const StrCaseMap &requestHeader,
const StrCaseMap &responseHeader,
const string &filePath,
bool use_mmap) const {
const string &file,
bool use_mmap,
bool is_path) const {
if (!is_path) {
//file是文件内容
(*this)(200, responseHeader, std::make_shared<HttpStringBody>(file));
return;
}
//file是文件路径
StrCaseMap &httpHeader = const_cast<StrCaseMap &>(responseHeader);
auto fileBody = std::make_shared<HttpFileBody>(filePath, use_mmap);
auto fileBody = std::make_shared<HttpFileBody>(file, use_mmap);
if (fileBody->remainSize() < 0) {
//打开文件失败
GET_CONFIG(string, notFound, Http::kNotFound);