ZLMediaKit/webrtc/WebRtcPlayer.cpp

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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.
*/
#include "WebRtcPlayer.h"
#include "Common/config.h"
using namespace std;
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namespace mediakit {
WebRtcPlayer::Ptr WebRtcPlayer::create(const EventPoller::Ptr &poller,
const RtspMediaSource::Ptr &src,
const MediaInfo &info,
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bool preferred_tcp) {
WebRtcPlayer::Ptr ret(new WebRtcPlayer(poller, src, info, preferred_tcp), [](WebRtcPlayer *ptr) {
ptr->onDestory();
delete ptr;
});
ret->onCreate();
return ret;
}
WebRtcPlayer::WebRtcPlayer(const EventPoller::Ptr &poller,
const RtspMediaSource::Ptr &src,
const MediaInfo &info,
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bool preferred_tcp) : WebRtcTransportImp(poller,preferred_tcp) {
_media_info = info;
_play_src = src;
CHECK(_play_src);
}
void WebRtcPlayer::onStartWebRTC() {
CHECK(_play_src);
WebRtcTransportImp::onStartWebRTC();
if (canSendRtp()) {
_play_src->pause(false);
_reader = _play_src->getRing()->attach(getPoller(), true);
weak_ptr<WebRtcPlayer> weak_self = static_pointer_cast<WebRtcPlayer>(shared_from_this());
weak_ptr<Session> weak_session = getSession();
_reader->setGetInfoCB([weak_session]() { return weak_session.lock(); });
_reader->setReadCB([weak_self](const RtspMediaSource::RingDataType &pkt) {
auto strong_self = weak_self.lock();
if (!strong_self) {
return;
}
size_t i = 0;
pkt->for_each([&](const RtpPacket::Ptr &rtp) {
//TraceL<<"send track type:"<<rtp->type<<" ts:"<<rtp->getStamp()<<" ntp:"<<rtp->ntp_stamp<<" size:"<<rtp->getPayloadSize()<<" i:"<<i;
strong_self->onSendRtp(rtp, ++i == pkt->size());
});
});
_reader->setDetachCB([weak_self]() {
auto strong_self = weak_self.lock();
if (!strong_self) {
return;
}
strong_self->onShutdown(SockException(Err_shutdown, "rtsp ring buffer detached"));
});
}
//使用完毕后,释放强引用,这样确保推流器断开后能及时注销媒体
_play_src = nullptr;
}
void WebRtcPlayer::onDestory() {
WebRtcTransportImp::onDestory();
auto duration = getDuration();
auto bytes_usage = getBytesUsage();
//流量统计事件广播
GET_CONFIG(uint32_t, iFlowThreshold, General::kFlowThreshold);
if (_reader && getSession()) {
WarnL << "RTC播放器("
<< _media_info.shortUrl()
<< ")结束播放,耗时(s):" << duration;
if (bytes_usage >= iFlowThreshold * 1024) {
NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport, _media_info, bytes_usage, duration,
true, static_cast<SockInfo &>(*getSession()));
}
}
}
void WebRtcPlayer::onRtcConfigure(RtcConfigure &configure) const {
CHECK(_play_src);
WebRtcTransportImp::onRtcConfigure(configure);
//这是播放
configure.audio.direction = configure.video.direction = RtpDirection::sendonly;
configure.setPlayRtspInfo(_play_src->getSdp());
}
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}// namespace mediakit