mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 19:20:53 +08:00
113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
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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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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ZLMEDIAKIT_MEDIASINK_H
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#define ZLMEDIAKIT_MEDIASINK_H
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#include <mutex>
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#include <memory>
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#include "Util/TimeTicker.h"
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#include "Extension/Frame.h"
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#include "Extension/Track.h"
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using namespace std;
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using namespace toolkit;
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namespace mediakit{
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/**
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* 该类的作用是等待Track ready()返回true也就是就绪后再通知派生类进行下一步的操作
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* 目的是输入Frame前由Track截取处理下，以便获取有效的信息（譬如sps pps aa_cfg）
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*/
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class MediaSink : public FrameWriterInterface , public std::enable_shared_from_this<MediaSink>{
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public:
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typedef std::shared_ptr<MediaSink> Ptr;
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MediaSink(){}
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virtual ~MediaSink(){}
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/**
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* 输入frame
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* @param frame
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*/
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void inputFrame(const Frame::Ptr &frame) override;
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/**
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* 添加track，内部会调用Track的clone方法
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* 只会克隆sps pps这些信息 ，而不会克隆Delegate相关关系
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* @param track
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*/
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virtual void addTrack(const Track::Ptr & track);
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/**
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* 重置track
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*/
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virtual void resetTracks();
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/**
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* 全部Track是否都准备好了
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* @return
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*/
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bool isAllTrackReady() const;
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/**
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* 获取特定类型的Track
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* @param type track类型
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* @param trackReady 是否获取已经准备好的Track
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* @return
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*/
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Track::Ptr getTrack(TrackType type,bool trackReady = true) const;
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protected:
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/**
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* 某track已经准备好，其ready()状态返回true，
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* 此时代表可以获取其例如sps pps等相关信息了
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* @param track
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*/
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virtual void onTrackReady(const Track::Ptr & track) {};
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/**
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* 所有Track已经准备好，
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*/
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virtual void onAllTrackReady() {};
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/**
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* 某Track输出frame，在onAllTrackReady触发后才会调用此方法
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* @param frame
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*/
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virtual void onTrackFrame(const Frame::Ptr &frame) {};
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private:
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mutable recursive_mutex _mtx;
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map<int,Track::Ptr> _track_map;
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map<int,function<void()> > _trackReadyCallback;
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bool _allTrackReady = false;
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bool _anyTrackUnReady = false;
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Ticker _ticker;
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};
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}//namespace mediakit
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#endif //ZLMEDIAKIT_MEDIASINK_H
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