126 lines
3.6 KiB
C++
126 lines
3.6 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/xia-chu/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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#ifndef ZLMEDIAKIT_HLSMEDIASOURCE_H
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#define ZLMEDIAKIT_HLSMEDIASOURCE_H
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#include "Common/MediaSource.h"
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#include "Util/TimeTicker.h"
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#include <atomic>
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namespace mediakit {
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class HlsMediaSource : public MediaSource {
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public:
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friend class HlsCookieData;
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using RingType = toolkit::RingBuffer<std::string>;
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using Ptr = std::shared_ptr<HlsMediaSource>;
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HlsMediaSource(const std::string &vhost, const std::string &app, const std::string &stream_id)
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: MediaSource(HLS_SCHEMA, vhost, app, stream_id) {}
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~HlsMediaSource() override = default;
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/**
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* 获取媒体源的环形缓冲
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*/
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const RingType::Ptr &getRing() const { return _ring; }
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/**
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* 获取播放器个数
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*/
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int readerCount() override { return _ring ? _ring->readerCount() : 0; }
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/**
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* 生成m3u8文件时触发
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* @param index_file m3u8文件内容
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*/
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void registHls(std::string index_file) {
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if (!_is_regist) {
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_is_regist = true;
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std::weak_ptr<HlsMediaSource> weakSelf = std::dynamic_pointer_cast<HlsMediaSource>(shared_from_this());
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auto lam = [weakSelf](int size) {
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auto strongSelf = weakSelf.lock();
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if (!strongSelf) {
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return;
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}
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strongSelf->onReaderChanged(size);
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};
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_ring = std::make_shared<RingType>(0, std::move(lam));
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onReaderChanged(0);
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regist();
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}
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if (index_file.empty()) {
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//没产生索引文件, 只是为了触发媒体注册
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return;
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}
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//赋值m3u8索引文件内容
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std::lock_guard<std::mutex> lck(_mtx_index);
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_index_file = std::move(index_file);
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_list_cb.for_each([&](const std::function<void(const std::string &str)> &cb) { cb(_index_file); });
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_list_cb.clear();
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}
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void getIndexFile(std::function<void(const std::string &str)> cb) {
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std::lock_guard<std::mutex> lck(_mtx_index);
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if (!_index_file.empty()) {
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cb(_index_file);
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return;
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}
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//等待生成m3u8文件
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_list_cb.emplace_back(std::move(cb));
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}
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std::string getIndexFile() const {
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std::lock_guard<std::mutex> lck(_mtx_index);
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return _index_file;
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}
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void onSegmentSize(size_t bytes) { _speed[TrackVideo] += bytes; }
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private:
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bool _is_regist = false;
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RingType::Ptr _ring;
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std::string _index_file;
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mutable std::mutex _mtx_index;
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toolkit::List<std::function<void(const std::string &)> > _list_cb;
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};
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class HlsCookieData {
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public:
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using Ptr = std::shared_ptr<HlsCookieData>;
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HlsCookieData(const MediaInfo &info, const std::shared_ptr<toolkit::SockInfo> &sock_info);
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~HlsCookieData();
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void addByteUsage(size_t bytes);
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void setMediaSource(const HlsMediaSource::Ptr &src);
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HlsMediaSource::Ptr getMediaSource() const;
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private:
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void addReaderCount();
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private:
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std::atomic<uint64_t> _bytes { 0 };
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MediaInfo _info;
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std::shared_ptr<bool> _added;
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toolkit::Ticker _ticker;
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std::weak_ptr<HlsMediaSource> _src;
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std::shared_ptr<toolkit::SockInfo> _sock_info;
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HlsMediaSource::RingType::RingReader::Ptr _ring_reader;
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};
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} // namespace mediakit
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#endif // ZLMEDIAKIT_HLSMEDIASOURCE_H
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