mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-27 05:38:31 +08:00
123 lines
4.1 KiB
C++
123 lines
4.1 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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#include "MediaSink.h"
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//最多等待未初始化的Track 10秒，超时之后会忽略未初始化的Track
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#define MAX_WAIT_MS 10000
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namespace mediakit{
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void MediaSink::addTrack(const Track::Ptr &track_in) {
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lock_guard<recursive_mutex> lck(_mtx);
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//克隆Track，只拷贝其数据，不拷贝其数据转发关系
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auto track = track_in->clone();
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weak_ptr<MediaSink> weakSelf = shared_from_this();
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track->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([weakSelf](const Frame::Ptr &frame){
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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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if(!strongSelf->_anyTrackUnReady){
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strongSelf->onTrackFrame(frame);
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}
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}));
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auto codec_id = track->getCodecId();
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_track_map[codec_id] = track;
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auto lam = [this,track](){
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onTrackReady(track);
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};
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if(track->ready()){
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lam();
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}else{
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_anyTrackUnReady = true;
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_allTrackReady = false;
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_trackReadyCallback[codec_id] = lam;
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_ticker.resetTime();
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}
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}
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void MediaSink::inputFrame(const Frame::Ptr &frame) {
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lock_guard<recursive_mutex> lck(_mtx);
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auto codec_id = frame->getCodecId();
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auto it = _track_map.find(codec_id);
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if (it == _track_map.end()) {
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return;
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}
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it->second->inputFrame(frame);
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if(!_allTrackReady && !_trackReadyCallback.empty() && it->second->ready()){
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//Track由未就绪状态转换成就绪状态，我们就触发onTrackReady回调
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auto it_callback = _trackReadyCallback.find(codec_id);
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if(it_callback != _trackReadyCallback.end()){
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it_callback->second();
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_trackReadyCallback.erase(it_callback);
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}
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}
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if(!_allTrackReady && (_trackReadyCallback.empty() || _ticker.elapsedTime() > MAX_WAIT_MS)){
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_allTrackReady = true;
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_anyTrackUnReady = false;
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if(!_trackReadyCallback.empty()){
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//这是超时强制忽略未准备好的Track
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_trackReadyCallback.clear();
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//移除未准备好的Track
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for(auto it = _track_map.begin() ; it != _track_map.end() ; ){
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if(!it->second->ready()){
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it = _track_map.erase(it);
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continue;
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}
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++it;
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}
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}
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if(!_track_map.empty()){
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//最少有一个有效的Track
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onAllTrackReady();
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}
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}
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}
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bool MediaSink::isAllTrackReady() const {
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return _allTrackReady;
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}
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Track::Ptr MediaSink::getTrack(TrackType type,bool trackReady) const {
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lock_guard<recursive_mutex> lck(_mtx);
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for (auto &pr : _track_map){
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if(pr.second->getTrackType() == type){
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if(!trackReady){
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return pr.second;
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}
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return pr.second->ready() ? pr.second : nullptr;
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}
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}
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return nullptr;
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}
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}//namespace mediakit
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