mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-29 14:45:55 +08:00
464 lines
14 KiB
C++
464 lines
14 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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#include <math.h>
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#include "Common/config.h"
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#include "MultiMediaSourceMuxer.h"
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namespace toolkit {
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StatisticImp(mediakit::MultiMediaSourceMuxer);
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}
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namespace mediakit {
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static std::shared_ptr<MediaSinkInterface> makeRecorder(MediaSource &sender, const vector<Track::Ptr> &tracks, Recorder::type type, const string &custom_path, size_t max_second){
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auto recorder = Recorder::createRecorder(type, sender.getVhost(), sender.getApp(), sender.getId(), custom_path, max_second);
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for (auto &track : tracks) {
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recorder->addTrack(track);
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}
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return recorder;
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}
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static string getTrackInfoStr(const TrackSource *track_src){
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_StrPrinter codec_info;
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auto tracks = track_src->getTracks(true);
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for (auto &track : tracks) {
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auto codec_type = track->getTrackType();
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codec_info << track->getCodecName();
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switch (codec_type) {
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case TrackAudio : {
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auto audio_track = dynamic_pointer_cast<AudioTrack>(track);
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codec_info << "["
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<< audio_track->getAudioSampleRate() << "/"
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<< audio_track->getAudioChannel() << "/"
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<< audio_track->getAudioSampleBit() << "] ";
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break;
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}
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case TrackVideo : {
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auto video_track = dynamic_pointer_cast<VideoTrack>(track);
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codec_info << "["
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<< video_track->getVideoWidth() << "/"
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<< video_track->getVideoHeight() << "/"
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<< round(video_track->getVideoFps()) << "] ";
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break;
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}
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default:
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break;
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}
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}
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return std::move(codec_info);
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}
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MultiMediaSourceMuxer::MultiMediaSourceMuxer(const string &vhost, const string &app, const string &stream, float dur_sec,
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bool enable_rtsp, bool enable_rtmp, bool enable_hls, bool enable_mp4) {
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_get_origin_url = [this, vhost, app, stream]() {
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auto ret = getOriginUrl(*MediaSource::NullMediaSource);
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if (!ret.empty()) {
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return ret;
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}
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return vhost + "/" + app + "/" + stream;
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};
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if (enable_rtmp) {
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_rtmp = std::make_shared<RtmpMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleMeta>(dur_sec));
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}
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if (enable_rtsp) {
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_rtsp = std::make_shared<RtspMediaSourceMuxer>(vhost, app, stream, std::make_shared<TitleSdp>(dur_sec));
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}
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if (enable_hls) {
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_hls = dynamic_pointer_cast<HlsRecorder>(Recorder::createRecorder(Recorder::type_hls, vhost, app, stream));
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}
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if (enable_mp4) {
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_mp4 = Recorder::createRecorder(Recorder::type_mp4, vhost, app, stream);
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}
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_ts = std::make_shared<TSMediaSourceMuxer>(vhost, app, stream);
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#if defined(ENABLE_MP4)
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_fmp4 = std::make_shared<FMP4MediaSourceMuxer>(vhost, app, stream);
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#endif
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}
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void MultiMediaSourceMuxer::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
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setDelegate(listener);
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auto self = shared_from_this();
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//拦截事件
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if (_rtmp) {
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_rtmp->setListener(self);
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}
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if (_rtsp) {
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_rtsp->setListener(self);
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}
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if (_ts) {
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_ts->setListener(self);
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}
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#if defined(ENABLE_MP4)
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if (_fmp4) {
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_fmp4->setListener(self);
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}
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#endif
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auto hls = _hls;
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if (hls) {
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hls->setListener(self);
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}
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}
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void MultiMediaSourceMuxer::setTrackListener(const std::weak_ptr<Listener> &listener) {
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_track_listener = listener;
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}
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int MultiMediaSourceMuxer::totalReaderCount() const {
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auto hls = _hls;
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auto ret = (_rtsp ? _rtsp->readerCount() : 0) +
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(_rtmp ? _rtmp->readerCount() : 0) +
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(_ts ? _ts->readerCount() : 0) +
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#if defined(ENABLE_MP4)
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(_fmp4 ? _fmp4->readerCount() : 0) +
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#endif
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(hls ? hls->readerCount() : 0);
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#if defined(ENABLE_RTPPROXY)
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return ret + (int)_rtp_sender.size();
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#else
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return ret;
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#endif
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}
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void MultiMediaSourceMuxer::setTimeStamp(uint32_t stamp) {
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if (_rtmp) {
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_rtmp->setTimeStamp(stamp);
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}
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if (_rtsp) {
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_rtsp->setTimeStamp(stamp);
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}
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}
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int MultiMediaSourceMuxer::totalReaderCount(MediaSource &sender) {
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auto listener = getDelegate();
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if (!listener) {
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return totalReaderCount();
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}
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return listener->totalReaderCount(sender);
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}
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//此函数可能跨线程调用
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bool MultiMediaSourceMuxer::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second) {
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switch (type) {
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case Recorder::type_hls : {
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if (start && !_hls) {
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//开始录制
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auto hls = dynamic_pointer_cast<HlsRecorder>(makeRecorder(sender, getTracks(), type, custom_path, max_second));
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if (hls) {
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//设置HlsMediaSource的事件监听器
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hls->setListener(shared_from_this());
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}
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_hls = hls;
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} else if (!start && _hls) {
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//停止录制
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_hls = nullptr;
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}
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return true;
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}
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case Recorder::type_mp4 : {
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if (start && !_mp4) {
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//开始录制
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_mp4 = makeRecorder(sender, getTracks(), type, custom_path, max_second);
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} else if (!start && _mp4) {
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//停止录制
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_mp4 = nullptr;
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}
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return true;
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}
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default : return false;
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}
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}
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//此函数可能跨线程调用
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bool MultiMediaSourceMuxer::isRecording(MediaSource &sender, Recorder::type type) {
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switch (type){
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case Recorder::type_hls :
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return !!_hls;
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case Recorder::type_mp4 :
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return !!_mp4;
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default:
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return false;
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}
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}
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void MultiMediaSourceMuxer::startSendRtp(MediaSource &, const string &dst_url, uint16_t dst_port, const string &ssrc, bool is_udp, uint16_t src_port, const function<void(uint16_t local_port, const SockException &ex)> &cb){
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#if defined(ENABLE_RTPPROXY)
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RtpSender::Ptr rtp_sender = std::make_shared<RtpSender>(atoi(ssrc.data()));
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weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
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rtp_sender->startSend(dst_url, dst_port, is_udp, src_port, [weak_self, rtp_sender, cb, ssrc](uint16_t local_port, const SockException &ex) {
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cb(local_port, ex);
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auto strong_self = weak_self.lock();
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if (!strong_self || ex) {
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return;
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}
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for (auto &track : strong_self->getTracks(false)) {
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rtp_sender->addTrack(track);
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}
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rtp_sender->addTrackCompleted();
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lock_guard<mutex> lck(strong_self->_rtp_sender_mtx);
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strong_self->_rtp_sender[ssrc] = rtp_sender;
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});
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#else
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cb(0, SockException(Err_other, "该功能未启用，编译时请打开ENABLE_RTPPROXY宏"));
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#endif//ENABLE_RTPPROXY
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}
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bool MultiMediaSourceMuxer::stopSendRtp(MediaSource &sender, const string &ssrc) {
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#if defined(ENABLE_RTPPROXY)
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std::unique_ptr<onceToken> token;
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if (&sender != MediaSource::NullMediaSource) {
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token.reset(new onceToken(nullptr, [&]() {
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//关闭rtp推流，可能触发无人观看事件
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MediaSourceEventInterceptor::onReaderChanged(sender, totalReaderCount());
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}));
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}
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if (ssrc.empty()) {
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//关闭全部
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lock_guard<mutex> lck(_rtp_sender_mtx);
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auto size = _rtp_sender.size();
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_rtp_sender.clear();
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return size;
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}
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//关闭特定的
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lock_guard<mutex> lck(_rtp_sender_mtx);
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return _rtp_sender.erase(ssrc);
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#else
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return false;
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#endif//ENABLE_RTPPROXY
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}
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vector<Track::Ptr> MultiMediaSourceMuxer::getMediaTracks(MediaSource &sender, bool trackReady) const {
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return getTracks(trackReady);
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}
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bool MultiMediaSourceMuxer::onTrackReady(const Track::Ptr &track) {
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if (CodecL16 == track->getCodecId()) {
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WarnL << "L16音频格式目前只支持RTSP协议推流拉流!!!";
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return false;
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}
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bool ret = false;
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if (_rtmp) {
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ret = _rtmp->addTrack(track) ? true : ret;
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}
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if (_rtsp) {
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ret = _rtsp->addTrack(track) ? true : ret;
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}
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if (_ts) {
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ret = _ts->addTrack(track) ? true : ret;
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}
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#if defined(ENABLE_MP4)
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if (_fmp4) {
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ret = _fmp4->addTrack(track) ? true : ret;
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}
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#endif
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//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
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auto hls = _hls;
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if (hls) {
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ret = hls->addTrack(track) ? true : ret;
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}
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auto mp4 = _mp4;
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if (mp4) {
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ret = mp4->addTrack(track) ? true : ret;
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}
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return ret;
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}
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void MultiMediaSourceMuxer::onAllTrackReady() {
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setMediaListener(getDelegate());
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if (_rtmp) {
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_rtmp->onAllTrackReady();
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}
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if (_rtsp) {
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_rtsp->onAllTrackReady();
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}
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#if defined(ENABLE_MP4)
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if (_fmp4) {
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_fmp4->onAllTrackReady();
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}
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#endif
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auto listener = _track_listener.lock();
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if (listener) {
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listener->onAllTrackReady();
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}
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InfoL << "stream: " << _get_origin_url() << " , codec info: " << getTrackInfoStr(this);
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}
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void MultiMediaSourceMuxer::resetTracks() {
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MediaSink::resetTracks();
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if (_rtmp) {
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_rtmp->resetTracks();
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}
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if (_rtsp) {
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_rtsp->resetTracks();
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}
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if (_ts) {
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_ts->resetTracks();
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}
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#if defined(ENABLE_MP4)
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if (_fmp4) {
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_fmp4->resetTracks();
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}
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#endif
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#if defined(ENABLE_RTPPROXY)
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lock_guard<mutex> lck(_rtp_sender_mtx);
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for (auto &pr : _rtp_sender) {
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pr.second->resetTracks();
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}
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#endif
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//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
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auto hls = _hls;
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if (hls) {
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hls->resetTracks();
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}
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auto mp4 = _mp4;
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if (mp4) {
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mp4->resetTracks();
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}
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}
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//该类实现frame级别的时间戳覆盖
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class FrameModifyStamp : public Frame{
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public:
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typedef std::shared_ptr<FrameModifyStamp> Ptr;
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FrameModifyStamp(const Frame::Ptr &frame, Stamp &stamp){
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_frame = frame;
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//覆盖时间戳
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stamp.revise(frame->dts(), frame->pts(), _dts, _pts, true);
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}
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~FrameModifyStamp() override {}
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uint32_t dts() const override{
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return (uint32_t)_dts;
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}
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uint32_t pts() const override{
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return (uint32_t)_pts;
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}
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size_t prefixSize() const override {
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return _frame->prefixSize();
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}
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bool keyFrame() const override {
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return _frame->keyFrame();
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}
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bool configFrame() const override {
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return _frame->configFrame();
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}
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bool cacheAble() const override {
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return _frame->cacheAble();
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}
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char *data() const override {
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return _frame->data();
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}
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size_t size() const override {
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return _frame->size();
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}
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CodecId getCodecId() const override {
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return _frame->getCodecId();
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}
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private:
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int64_t _dts;
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int64_t _pts;
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Frame::Ptr _frame;
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};
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bool MultiMediaSourceMuxer::onTrackFrame(const Frame::Ptr &frame_in) {
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GET_CONFIG(bool, modify_stamp, General::kModifyStamp);
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auto frame = frame_in;
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if (modify_stamp) {
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//开启了时间戳覆盖
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frame = std::make_shared<FrameModifyStamp>(frame, _stamp[frame->getTrackType()]);
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}
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bool ret = false;
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if (_rtmp) {
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ret = _rtmp->inputFrame(frame) ? true : ret;
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}
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if (_rtsp) {
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ret = _rtsp->inputFrame(frame) ? true : ret;
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}
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if (_ts) {
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ret = _ts->inputFrame(frame) ? true : ret;
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}
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//拷贝智能指针，目的是为了防止跨线程调用设置录像相关api导致的线程竞争问题
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//此处使用智能指针拷贝来确保线程安全，比互斥锁性能更优
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auto hls = _hls;
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if (hls) {
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ret = hls->inputFrame(frame) ? true : ret;
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}
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auto mp4 = _mp4;
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if (mp4) {
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ret = mp4->inputFrame(frame) ? true : ret;
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}
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#if defined(ENABLE_MP4)
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if (_fmp4) {
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ret = _fmp4->inputFrame(frame) ? true : ret;
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}
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#endif
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#if defined(ENABLE_RTPPROXY)
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lock_guard<mutex> lck(_rtp_sender_mtx);
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for (auto &pr : _rtp_sender) {
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ret = pr.second->inputFrame(frame) ? true : ret;
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}
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#endif //ENABLE_RTPPROXY
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return ret;
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}
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bool MultiMediaSourceMuxer::isEnabled(){
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GET_CONFIG(uint32_t, stream_none_reader_delay_ms, General::kStreamNoneReaderDelayMS);
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if (!_is_enable || _last_check.elapsedTime() > stream_none_reader_delay_ms) {
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//无人观看时，每次检查是否真的无人观看
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//有人观看时，则延迟一定时间检查一遍是否无人观看了(节省性能)
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auto hls = _hls;
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auto flag = (_rtmp ? _rtmp->isEnabled() : false) ||
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(_rtsp ? _rtsp->isEnabled() : false) ||
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(_ts ? _ts->isEnabled() : false) ||
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#if defined(ENABLE_MP4)
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(_fmp4 ? _fmp4->isEnabled() : false) ||
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#endif
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(hls ? hls->isEnabled() : false) || _mp4;
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#if defined(ENABLE_RTPPROXY)
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_is_enable = flag || _rtp_sender.size();
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#else
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_is_enable = flag;
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#endif //ENABLE_RTPPROXY
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if (_is_enable) {
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//无人观看时，不刷新计时器,因为无人观看时每次都会检查一遍，所以刷新计数器无意义且浪费cpu
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_last_check.resetTime();
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}
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}
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return _is_enable;
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}
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}//namespace mediakit
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