ZLMediaKit/src/Rtsp/RtspMediaSourceImp.h
2021-04-20 17:53:43 +08:00

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/*
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
*
* Use of this source code is governed by MIT license that can be found in the
* LICENSE file in the root of the source tree. All contributing project authors
* may be found in the AUTHORS file in the root of the source tree.
*/
#ifndef SRC_RTSP_RTSPTORTMPMEDIASOURCE_H_
#define SRC_RTSP_RTSPTORTMPMEDIASOURCE_H_
#include "Rtmp/amf.h"
#include "RtspMediaSource.h"
#include "RtspDemuxer.h"
#include "Common/MultiMediaSourceMuxer.h"
using namespace toolkit;
namespace mediakit {
class RtspMediaSourceImp : public RtspMediaSource, public TrackListener, public MultiMediaSourceMuxer::Listener {
public:
typedef std::shared_ptr<RtspMediaSourceImp> Ptr;
/**
* 构造函数
* @param vhost 虚拟主机
* @param app 应用名
* @param id 流id
* @param ringSize 环形缓存大小
*/
RtspMediaSourceImp(const string &vhost, const string &app, const string &id, int ringSize = RTP_GOP_SIZE) : RtspMediaSource(vhost, app, id,ringSize) {
_demuxer = std::make_shared<RtspDemuxer>();
_demuxer->setTrackListener(this);
}
~RtspMediaSourceImp() = default;
/**
* 设置sdp
*/
void setSdp(const string &strSdp) override {
_demuxer->loadSdp(strSdp);
RtspMediaSource::setSdp(strSdp);
}
/**
* 输入rtp并解析
*/
void onWrite(RtpPacket::Ptr rtp, bool key_pos) override {
if (_all_track_ready && !_muxer->isEnabled()) {
//获取到所有Track后并且未开启转协议那么不需要解复用rtp
//在关闭rtp解复用后无法知道是否为关键帧这样会导致无法秒开或者开播花屏
key_pos = rtp->type == TrackVideo;
} else {
//需要解复用rtp
key_pos = _demuxer->inputRtp(rtp);
}
RtspMediaSource::onWrite(std::move(rtp), key_pos);
}
/**
* 获取观看总人数,包括(hls/rtsp/rtmp)
*/
int totalReaderCount() override{
return readerCount() + (_muxer ? _muxer->totalReaderCount() : 0);
}
/**
* 设置协议转换
* @param enableHls 是否转换成hls
* @param enableMP4 是否mp4录制
*/
void setProtocolTranslation(bool enableHls,bool enableMP4){
//不重复生成rtsp
_muxer = std::make_shared<MultiMediaSourceMuxer>(getVhost(), getApp(), getId(), _demuxer->getDuration(), false, true, enableHls, enableMP4);
_muxer->setMediaListener(getListener());
_muxer->setTrackListener(static_pointer_cast<RtspMediaSourceImp>(shared_from_this()));
//让_muxer对象拦截一部分事件(比如说录像相关事件)
MediaSource::setListener(_muxer);
for(auto &track : _demuxer->getTracks(false)){
_muxer->addTrack(track);
track->addDelegate(_muxer);
}
}
/**
* _demuxer触发的添加Track事件
*/
void addTrack(const Track::Ptr &track) override {
if(_muxer){
_muxer->addTrack(track);
track->addDelegate(_muxer);
}
}
/**
* _demuxer触发的Track添加完毕事件
*/
void addTrackCompleted() override {
if (_muxer) {
_muxer->addTrackCompleted();
}
}
void resetTracks() override {
if (_muxer) {
_muxer->resetTracks();
}
}
/**
* _muxer触发的所有Track就绪的事件
*/
void onAllTrackReady() override{
_all_track_ready = true;
}
/**
* 设置事件监听器
* @param listener 监听器
*/
void setListener(const std::weak_ptr<MediaSourceEvent> &listener) override{
if (_muxer) {
//_muxer对象不能处理的事件再给listener处理
_muxer->setMediaListener(listener);
} else {
//未创建_muxer对象事件全部给listener处理
MediaSource::setListener(listener);
}
}
private:
RtspDemuxer::Ptr _demuxer;
MultiMediaSourceMuxer::Ptr _muxer;
bool _all_track_ready = false;
};
} /* namespace mediakit */
#endif /* SRC_RTSP_RTSPTORTMPMEDIASOURCE_H_ */