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https://github.com/ZLMediaKit/ZLMediaKit.git
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a024c51536
https://www.viva64.com/en/w/v828/ 编译器会对返回本地变量优化([Named] Return Value Optimization (RVO/NRVO)), 无论是 C++11 之前还是之后, 添加 move 后反而会影响该优化. C++ Core Guidelines F.48: Do not return std::move(local)
122 lines
3.4 KiB
C++
122 lines
3.4 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#include "HlsMakerImp.h"
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#include "Util/util.h"
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#include "Util/uv_errno.h"
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using namespace toolkit;
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namespace mediakit {
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HlsMakerImp::HlsMakerImp(const string &m3u8_file,
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const string ¶ms,
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uint32_t bufSize,
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float seg_duration,
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uint32_t seg_number) : HlsMaker(seg_duration, seg_number) {
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_path_prefix = m3u8_file.substr(0, m3u8_file.rfind('/'));
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_path_hls = m3u8_file;
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_params = params;
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_buf_size = bufSize;
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_file_buf.reset(new char[bufSize], [](char *ptr) {
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delete[] ptr;
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});
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}
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HlsMakerImp::~HlsMakerImp() {
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clearCache();
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}
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void HlsMakerImp::clearCache() {
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//录制完了
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flushLastSegment(true);
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if (isLive()) {
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//hls直播才删除文件
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clear();
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_file = nullptr;
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_segment_file_paths.clear();
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File::delete_file(_path_prefix.data());
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}
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}
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string HlsMakerImp::onOpenSegment(int index) {
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string segment_name, segment_path;
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{
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auto strDate = getTimeStr("%Y-%m-%d");
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auto strHour = getTimeStr("%H");
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auto strTime = getTimeStr("%M-%S");
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segment_name = StrPrinter << strDate + "/" + strHour + "/" + strTime << "_" << index << ".ts";
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segment_path = _path_prefix + "/" + segment_name;
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if (isLive()) {
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_segment_file_paths.emplace(index, segment_path);
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}
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}
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_file = makeFile(segment_path, true);
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if (!_file) {
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WarnL << "create file failed," << segment_path << " " << get_uv_errmsg();
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}
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if (_params.empty()) {
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return segment_name;
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}
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return segment_name + "?" + _params;
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}
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void HlsMakerImp::onDelSegment(int index) {
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auto it = _segment_file_paths.find(index);
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if (it == _segment_file_paths.end()) {
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return;
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}
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File::delete_file(it->second.data());
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_segment_file_paths.erase(it);
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}
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void HlsMakerImp::onWriteSegment(const char *data, int len) {
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if (_file) {
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fwrite(data, len, 1, _file.get());
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}
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}
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void HlsMakerImp::onWriteHls(const char *data, int len) {
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auto hls = makeFile(_path_hls);
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if (hls) {
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fwrite(data, len, 1, hls.get());
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hls.reset();
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if (_media_src) {
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_media_src->registHls(true);
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}
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} else {
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WarnL << "create hls file failed," << _path_hls << " " << get_uv_errmsg();
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}
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//DebugL << "\r\n" << string(data,len);
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}
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std::shared_ptr<FILE> HlsMakerImp::makeFile(const string &file, bool setbuf) {
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auto file_buf = _file_buf;
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auto ret = shared_ptr<FILE>(File::create_file(file.data(), "wb"), [file_buf](FILE *fp) {
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if (fp) {
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fclose(fp);
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}
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});
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if (ret && setbuf) {
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setvbuf(ret.get(), _file_buf.get(), _IOFBF, _buf_size);
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}
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return ret;
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}
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void HlsMakerImp::setMediaSource(const string &vhost, const string &app, const string &stream_id) {
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_media_src = std::make_shared<HlsMediaSource>(vhost, app, stream_id);
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}
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HlsMediaSource::Ptr HlsMakerImp::getMediaSource() const {
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return _media_src;
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}
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}//namespace mediakit
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