Older/MediaServer/Common/MultiMediaSourceMuxer.cpp

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2024-09-28 23:55:00 +08:00
/*
* Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
*
* Use of this source code is governed by MIT-like 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 <math.h>
#include "Common/config.h"
#include "MultiMediaSourceMuxer.h"
using namespace std;
using namespace toolkit;
namespace toolkit {
StatisticImp(mediakit::MultiMediaSourceMuxer);
}
namespace mediakit {
namespace {
class MediaSourceForMuxer : public MediaSource {
public:
MediaSourceForMuxer(const MultiMediaSourceMuxer::Ptr &muxer)
: MediaSource("muxer", muxer->getMediaTuple()) {
MediaSource::setListener(muxer);
}
int readerCount() override { return 0; }
};
} // namespace
class FramePacedSender : public FrameWriterInterface, public std::enable_shared_from_this<FramePacedSender> {
public:
using OnFrame = std::function<void(const Frame::Ptr &frame)>;
// 最小缓存100ms数据 [AUTO-TRANSLATED:7b2fcb0d]
// Minimum cache 100ms data
static constexpr auto kMinCacheMS = 100;
FramePacedSender(uint32_t paced_sender_ms, OnFrame cb) {
_paced_sender_ms = paced_sender_ms;
_cb = std::move(cb);
}
void resetTimer(const EventPoller::Ptr &poller) {
std::lock_guard<std::recursive_mutex> lck(_mtx);
std::weak_ptr<FramePacedSender> weak_self = shared_from_this();
_timer = std::make_shared<Timer>(_paced_sender_ms / 1000.0f, [weak_self]() {
if (auto strong_self = weak_self.lock()) {
strong_self->onTick();
return true;
}
return false;
}, poller);
}
bool inputFrame(const Frame::Ptr &frame) override {
std::lock_guard<std::recursive_mutex> lck(_mtx);
if (!_timer) {
setCurrentStamp(frame->dts());
resetTimer(EventPoller::getCurrentPoller());
}
_cache.emplace_back(frame->dts() + _cache_ms, Frame::getCacheAbleFrame(frame));
return true;
}
private:
void onTick() {
std::lock_guard<std::recursive_mutex> lck(_mtx);
auto dst = _cache.empty() ? 0 : _cache.back().first;
while (!_cache.empty()) {
auto &front = _cache.front();
if (getCurrentStamp() < front.first) {
// 还没到消费时间 [AUTO-TRANSLATED:09fb4c3d]
// Not yet time to consume
break;
}
// 时间到了该消费frame了 [AUTO-TRANSLATED:2f007931]
// Time is up, it's time to consume the frame
_cb(front.second);
_cache.pop_front();
}
if (_cache.empty() && dst) {
// 消费太快,需要增加缓存大小 [AUTO-TRANSLATED:c05bfbcd]
// Consumption is too fast, need to increase cache size
setCurrentStamp(dst);
_cache_ms += kMinCacheMS;
}
// 消费太慢需要强制flush数据 [AUTO-TRANSLATED:5613625e]
// Consumption is too slow, need to force flush data
if (_cache.size() > 25 * 5) {
WarnL << "Flush frame paced sender cache: " << _cache.size();
while (!_cache.empty()) {
auto &front = _cache.front();
_cb(front.second);
_cache.pop_front();
}
setCurrentStamp(dst);
}
}
uint64_t getCurrentStamp() { return _ticker.elapsedTime() + _stamp_offset; }
void setCurrentStamp(uint64_t stamp) {
_stamp_offset = stamp;
_ticker.resetTime();
}
private:
uint32_t _paced_sender_ms;
uint32_t _cache_ms = kMinCacheMS;
uint64_t _stamp_offset = 0;
OnFrame _cb;
Ticker _ticker;
Timer::Ptr _timer;
std::recursive_mutex _mtx;
std::list<std::pair<uint64_t, Frame::Ptr>> _cache;
};
static std::shared_ptr<MediaSinkInterface> makeRecorder(MediaSource &sender, const vector<Track::Ptr> &tracks, Recorder::type type, const ProtocolOption &option){
auto recorder = Recorder::createRecorder(type, sender.getMediaTuple(), option);
for (auto &track : tracks) {
recorder->addTrack(track);
}
recorder->addTrackCompleted();
return recorder;
}
static string getTrackInfoStr(const TrackSource *track_src){
_StrPrinter codec_info;
auto tracks = track_src->getTracks(true);
for (auto &track : tracks) {
track->update();
auto codec_type = track->getTrackType();
codec_info << track->getCodecName();
switch (codec_type) {
case TrackAudio : {
auto audio_track = dynamic_pointer_cast<AudioTrack>(track);
codec_info << "["
<< audio_track->getAudioSampleRate() << "/"
<< audio_track->getAudioChannel() << "/"
<< audio_track->getAudioSampleBit() << "] ";
break;
}
case TrackVideo : {
auto video_track = dynamic_pointer_cast<VideoTrack>(track);
codec_info << "["
<< video_track->getVideoWidth() << "/"
<< video_track->getVideoHeight() << "/"
<< round(video_track->getVideoFps()) << "] ";
break;
}
default:
break;
}
}
return std::move(codec_info);
}
const ProtocolOption &MultiMediaSourceMuxer::getOption() const {
return _option;
}
const MediaTuple &MultiMediaSourceMuxer::getMediaTuple() const {
return _tuple;
}
std::string MultiMediaSourceMuxer::shortUrl() const {
auto ret = getOriginUrl(MediaSource::NullMediaSource());
if (!ret.empty()) {
return ret;
}
return _tuple.shortUrl();
}
void MultiMediaSourceMuxer::forEachRtpSender(const std::function<void(const std::string &ssrc)> &cb) const {
for (auto &pr : _rtp_sender) {
cb(pr.first);
}
}
MultiMediaSourceMuxer::MultiMediaSourceMuxer(const MediaTuple& tuple, float dur_sec, const ProtocolOption &option): _tuple(tuple) {
if (!option.stream_replace.empty()) {
// 支持在on_publish hook中替换stream_id [AUTO-TRANSLATED:375eb2ff]
// Support replacing stream_id in on_publish hook
_tuple.stream = option.stream_replace;
}
_poller = EventPollerPool::Instance().getPoller();
_create_in_poller = _poller->isCurrentThread();
_option = option;
_dur_sec = dur_sec;
setMaxTrackCount(option.max_track);
if (option.enable_rtmp) {
_rtmp = std::make_shared<RtmpMediaSourceMuxer>(_tuple, option, std::make_shared<TitleMeta>(dur_sec));
}
if (option.enable_rtsp) {
_rtsp = std::make_shared<RtspMediaSourceMuxer>(_tuple, option, std::make_shared<TitleSdp>(dur_sec));
}
if (option.enable_hls) {
_hls = dynamic_pointer_cast<HlsRecorder>(Recorder::createRecorder(Recorder::type_hls, _tuple, option));
}
if (option.enable_hls_fmp4) {
_hls_fmp4 = dynamic_pointer_cast<HlsFMP4Recorder>(Recorder::createRecorder(Recorder::type_hls_fmp4, _tuple, option));
}
if (option.enable_mp4) {
_mp4 = Recorder::createRecorder(Recorder::type_mp4, _tuple, option);
}
if (option.enable_ts) {
_ts = dynamic_pointer_cast<TSMediaSourceMuxer>(Recorder::createRecorder(Recorder::type_ts, _tuple, option));
}
if (option.enable_fmp4) {
_fmp4 = dynamic_pointer_cast<FMP4MediaSourceMuxer>(Recorder::createRecorder(Recorder::type_fmp4, _tuple, option));
}
// 音频相关设置 [AUTO-TRANSLATED:6ee58d57]
// Audio related settings
enableAudio(option.enable_audio);
enableMuteAudio(option.add_mute_audio);
}
void MultiMediaSourceMuxer::setMediaListener(const std::weak_ptr<MediaSourceEvent> &listener) {
setDelegate(listener);
auto self = shared_from_this();
// 拦截事件 [AUTO-TRANSLATED:100ca068]
// Intercept events
if (_rtmp) {
_rtmp->setListener(self);
}
if (_rtsp) {
_rtsp->setListener(self);
}
if (_ts) {
_ts->setListener(self);
}
if (_fmp4) {
_fmp4->setListener(self);
}
if (_hls_fmp4) {
_hls_fmp4->setListener(self);
}
if (_hls) {
_hls->setListener(self);
}
}
void MultiMediaSourceMuxer::setTrackListener(const std::weak_ptr<Listener> &listener) {
_track_listener = listener;
}
int MultiMediaSourceMuxer::totalReaderCount() const {
return (_rtsp ? _rtsp->readerCount() : 0) +
(_rtmp ? _rtmp->readerCount() : 0) +
(_ts ? _ts->readerCount() : 0) +
(_fmp4 ? _fmp4->readerCount() : 0) +
(_mp4 ? _option.mp4_as_player : 0) +
(_hls ? _hls->readerCount() : 0) +
(_hls_fmp4 ? _hls_fmp4->readerCount() : 0) +
(_ring ? _ring->readerCount() : 0);
}
void MultiMediaSourceMuxer::setTimeStamp(uint32_t stamp) {
if (_rtmp) {
_rtmp->setTimeStamp(stamp);
}
if (_rtsp) {
_rtsp->setTimeStamp(stamp);
}
}
int MultiMediaSourceMuxer::totalReaderCount(MediaSource &sender) {
auto listener = getDelegate();
if (!listener) {
return totalReaderCount();
}
try {
return listener->totalReaderCount(sender);
} catch (MediaSourceEvent::NotImplemented &) {
// listener未重载totalReaderCount [AUTO-TRANSLATED:f098007e]
// Listener did not reload totalReaderCount
return totalReaderCount();
}
}
// 此函数可能跨线程调用 [AUTO-TRANSLATED:e8c5f74d]
// This function may be called across threads
bool MultiMediaSourceMuxer::setupRecord(MediaSource &sender, Recorder::type type, bool start, const string &custom_path, size_t max_second) {
CHECK(getOwnerPoller(MediaSource::NullMediaSource())->isCurrentThread(), "Can only call setupRecord in it's owner poller");
onceToken token(nullptr, [&]() {
if (_option.mp4_as_player && type == Recorder::type_mp4) {
// 开启关闭mp4录制触发观看人数变化相关事件 [AUTO-TRANSLATED:b63a8deb]
// Turn on/off mp4 recording, trigger events related to changes in the number of viewers
onReaderChanged(sender, totalReaderCount());
}
});
switch (type) {
case Recorder::type_hls : {
if (start && !_hls) {
// 开始录制 [AUTO-TRANSLATED:36d99250]
// Start recording
_option.hls_save_path = custom_path;
auto hls = dynamic_pointer_cast<HlsRecorder>(makeRecorder(sender, getTracks(), type, _option));
if (hls) {
// 设置HlsMediaSource的事件监听器 [AUTO-TRANSLATED:69990c92]
// Set the event listener for HlsMediaSource
hls->setListener(shared_from_this());
}
_hls = hls;
} else if (!start && _hls) {
// 停止录制 [AUTO-TRANSLATED:3dee9292]
// Stop recording
_hls = nullptr;
}
return true;
}
case Recorder::type_mp4 : {
if (start && !_mp4) {
// 开始录制 [AUTO-TRANSLATED:36d99250]
// Start recording
_option.mp4_save_path = custom_path;
_option.mp4_max_second = max_second;
_mp4 = makeRecorder(sender, getTracks(), type, _option);
} else if (!start && _mp4) {
// 停止录制 [AUTO-TRANSLATED:3dee9292]
// Stop recording
_mp4 = nullptr;
}
return true;
}
case Recorder::type_hls_fmp4: {
if (start && !_hls_fmp4) {
// 开始录制 [AUTO-TRANSLATED:36d99250]
// Start recording
_option.hls_save_path = custom_path;
auto hls = dynamic_pointer_cast<HlsFMP4Recorder>(makeRecorder(sender, getTracks(), type, _option));
if (hls) {
// 设置HlsMediaSource的事件监听器 [AUTO-TRANSLATED:69990c92]
// Set the event listener for HlsMediaSource
hls->setListener(shared_from_this());
}
_hls_fmp4 = hls;
} else if (!start && _hls_fmp4) {
// 停止录制 [AUTO-TRANSLATED:3dee9292]
// Stop recording
_hls_fmp4 = nullptr;
}
return true;
}
case Recorder::type_fmp4: {
if (start && !_fmp4) {
auto fmp4 = dynamic_pointer_cast<FMP4MediaSourceMuxer>(makeRecorder(sender, getTracks(), type, _option));
if (fmp4) {
fmp4->setListener(shared_from_this());
}
_fmp4 = fmp4;
} else if (!start && _fmp4) {
_fmp4 = nullptr;
}
return true;
}
case Recorder::type_ts: {
if (start && !_ts) {
auto ts = dynamic_pointer_cast<TSMediaSourceMuxer>(makeRecorder(sender, getTracks(), type, _option));
if (ts) {
ts->setListener(shared_from_this());
}
_ts = ts;
} else if (!start && _ts) {
_ts = nullptr;
}
return true;
}
default : return false;
}
}
// 此函数可能跨线程调用 [AUTO-TRANSLATED:e8c5f74d]
// This function may be called across threads
bool MultiMediaSourceMuxer::isRecording(MediaSource &sender, Recorder::type type) {
switch (type) {
case Recorder::type_hls: return !!_hls;
case Recorder::type_mp4: return !!_mp4;
case Recorder::type_hls_fmp4: return !!_hls_fmp4;
case Recorder::type_fmp4: return !!_fmp4;
case Recorder::type_ts: return !!_ts;
default: return false;
}
}
void MultiMediaSourceMuxer::startSendRtp(MediaSource &sender, const MediaSourceEvent::SendRtpArgs &args, const std::function<void(uint16_t, const toolkit::SockException &)> cb) {
#if defined(ENABLE_RTPPROXY)
createGopCacheIfNeed();
auto ring = _ring;
auto ssrc = args.ssrc;
auto ssrc_multi_send = args.ssrc_multi_send;
auto tracks = getTracks(false);
auto poller = getOwnerPoller(sender);
auto rtp_sender = std::make_shared<RtpSender>(poller);
weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
rtp_sender->setOnClose([weak_self, ssrc](const toolkit::SockException &ex) {
if (auto strong_self = weak_self.lock()) {
// 可能归属线程发生变更 [AUTO-TRANSLATED:2b379e30]
// The owning thread may change
strong_self->getOwnerPoller(MediaSource::NullMediaSource())->async([=]() {
WarnL << "stream:" << strong_self->shortUrl() << " stop send rtp:" << ssrc << ", reason:" << ex;
strong_self->_rtp_sender.erase(ssrc);
NOTICE_EMIT(BroadcastSendRtpStoppedArgs, Broadcast::kBroadcastSendRtpStopped, *strong_self, ssrc, ex);
});
}
});
rtp_sender->startSend(args, [ssrc,ssrc_multi_send, weak_self, rtp_sender, cb, tracks, ring, poller](uint16_t local_port, const SockException &ex) mutable {
cb(local_port, ex);
auto strong_self = weak_self.lock();
if (!strong_self || ex) {
return;
}
for (auto &track : tracks) {
rtp_sender->addTrack(track);
}
rtp_sender->addTrackCompleted();
auto reader = ring->attach(poller);
reader->setReadCB([rtp_sender](const Frame::Ptr &frame) {
rtp_sender->inputFrame(frame);
});
// 可能归属线程发生变更 [AUTO-TRANSLATED:2b379e30]
// The owning thread may change
strong_self->getOwnerPoller(MediaSource::NullMediaSource())->async([=]() {
if(!ssrc_multi_send) {
strong_self->_rtp_sender.erase(ssrc);
}
strong_self->_rtp_sender.emplace(ssrc,reader);
});
});
#else
cb(0, SockException(Err_other, "该功能未启用编译时请打开ENABLE_RTPPROXY宏"));
#endif//ENABLE_RTPPROXY
}
bool MultiMediaSourceMuxer::stopSendRtp(MediaSource &sender, const string &ssrc) {
#if defined(ENABLE_RTPPROXY)
if (ssrc.empty()) {
// 关闭全部 [AUTO-TRANSLATED:ffaadfda]
// Close all
auto size = _rtp_sender.size();
_rtp_sender.clear();
return size;
}
// 关闭特定的 [AUTO-TRANSLATED:2286322a]
// Close specific
return _rtp_sender.erase(ssrc);
#else
return false;
#endif//ENABLE_RTPPROXY
}
vector<Track::Ptr> MultiMediaSourceMuxer::getMediaTracks(MediaSource &sender, bool trackReady) const {
return getTracks(trackReady);
}
EventPoller::Ptr MultiMediaSourceMuxer::getOwnerPoller(MediaSource &sender) {
auto listener = getDelegate();
if (!listener) {
return _poller;
}
try {
auto ret = listener->getOwnerPoller(sender);
if (ret != _poller) {
WarnL << "OwnerPoller changed " << _poller->getThreadName() << " -> " << ret->getThreadName() << " : " << shortUrl();
_poller = ret;
if (_paced_sender) {
_paced_sender->resetTimer(_poller);
}
}
return ret;
} catch (MediaSourceEvent::NotImplemented &) {
// listener未重载getOwnerPoller [AUTO-TRANSLATED:0ebf2e53]
// Listener did not reload getOwnerPoller
return _poller;
}
}
std::shared_ptr<MultiMediaSourceMuxer> MultiMediaSourceMuxer::getMuxer(MediaSource &sender) const {
return const_cast<MultiMediaSourceMuxer*>(this)->shared_from_this();
}
bool MultiMediaSourceMuxer::onTrackReady(const Track::Ptr &track) {
auto &stamp = _stamps[track->getIndex()];
if (_dur_sec > 0.01) {
// 点播 [AUTO-TRANSLATED:f0b0f74a]
// On-demand
stamp.setPlayBack();
}
bool ret = false;
if (_rtmp) {
ret = _rtmp->addTrack(track) ? true : ret;
}
if (_rtsp) {
ret = _rtsp->addTrack(track) ? true : ret;
}
if (_ts) {
ret = _ts->addTrack(track) ? true : ret;
}
if (_fmp4) {
ret = _fmp4->addTrack(track) ? true : ret;
}
if (_hls) {
ret = _hls->addTrack(track) ? true : ret;
}
if (_hls_fmp4) {
ret = _hls_fmp4->addTrack(track) ? true : ret;
}
if (_mp4) {
ret = _mp4->addTrack(track) ? true : ret;
}
return ret;
}
void MultiMediaSourceMuxer::onAllTrackReady() {
CHECK(!_create_in_poller || getOwnerPoller(MediaSource::NullMediaSource())->isCurrentThread());
if (_option.paced_sender_ms) {
std::weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
_paced_sender = std::make_shared<FramePacedSender>(_option.paced_sender_ms, [weak_self](const Frame::Ptr &frame) {
if (auto strong_self = weak_self.lock()) {
strong_self->onTrackFrame_l(frame);
}
});
}
setMediaListener(getDelegate());
if (_rtmp) {
_rtmp->addTrackCompleted();
}
if (_rtsp) {
_rtsp->addTrackCompleted();
}
if (_ts) {
_ts->addTrackCompleted();
}
if (_mp4) {
_mp4->addTrackCompleted();
}
if (_fmp4) {
_fmp4->addTrackCompleted();
}
if (_hls) {
_hls->addTrackCompleted();
}
if (_hls_fmp4) {
_hls_fmp4->addTrackCompleted();
}
auto listener = _track_listener.lock();
if (listener) {
listener->onAllTrackReady();
}
#if defined(ENABLE_RTPPROXY)
GET_CONFIG(bool, gop_cache, RtpProxy::kGopCache);
if (gop_cache) {
createGopCacheIfNeed();
}
#endif
Stamp *first = nullptr;
for (auto &pr : _stamps) {
if (!first) {
first = &pr.second;
} else {
pr.second.syncTo(*first);
}
}
InfoL << "stream: " << shortUrl() << " , codec info: " << getTrackInfoStr(this);
}
void MultiMediaSourceMuxer::createGopCacheIfNeed() {
if (_ring) {
return;
}
weak_ptr<MultiMediaSourceMuxer> weak_self = shared_from_this();
auto src = std::make_shared<MediaSourceForMuxer>(weak_self.lock());
_ring = std::make_shared<RingType>(1024, [weak_self, src](int size) {
if (auto strong_self = weak_self.lock()) {
// 切换到归属线程 [AUTO-TRANSLATED:abcf859b]
// Switch to the owning thread
strong_self->getOwnerPoller(MediaSource::NullMediaSource())->async([=]() {
strong_self->onReaderChanged(*src, strong_self->totalReaderCount());
});
}
});
}
void MultiMediaSourceMuxer::resetTracks() {
MediaSink::resetTracks();
if (_rtmp) {
_rtmp->resetTracks();
}
if (_rtsp) {
_rtsp->resetTracks();
}
if (_ts) {
_ts->resetTracks();
}
if (_fmp4) {
_fmp4->resetTracks();
}
if (_hls_fmp4) {
_hls_fmp4->resetTracks();
}
if (_hls) {
_hls->resetTracks();
}
if (_mp4) {
_mp4->resetTracks();
}
}
bool MultiMediaSourceMuxer::onTrackFrame(const Frame::Ptr &frame_in) {
auto frame = frame_in;
if (_option.modify_stamp != ProtocolOption::kModifyStampOff) {
// 时间戳不采用原始的绝对时间戳 [AUTO-TRANSLATED:8beb3bf7]
// Timestamp does not use the original absolute timestamp
frame = std::make_shared<FrameStamp>(frame, _stamps[frame->getIndex()], _option.modify_stamp);
}
return _paced_sender ? _paced_sender->inputFrame(frame) : onTrackFrame_l(frame);
}
bool MultiMediaSourceMuxer::onTrackFrame_l(const Frame::Ptr &frame_in) {
auto frame = frame_in;
bool ret = false;
if (_rtmp) {
ret = _rtmp->inputFrame(frame) ? true : ret;
}
if (_rtsp) {
ret = _rtsp->inputFrame(frame) ? true : ret;
}
if (_ts) {
ret = _ts->inputFrame(frame) ? true : ret;
}
if (_hls) {
ret = _hls->inputFrame(frame) ? true : ret;
}
if (_hls_fmp4) {
ret = _hls_fmp4->inputFrame(frame) ? true : ret;
}
if (_mp4) {
ret = _mp4->inputFrame(frame) ? true : ret;
}
if (_fmp4) {
ret = _fmp4->inputFrame(frame) ? true : ret;
}
if (_ring) {
// 此场景由于直接转发可能存在切换线程引起的数据被缓存在管道所以需要CacheAbleFrame [AUTO-TRANSLATED:528afbb7]
// In this scenario, due to direct forwarding, there may be data cached in the pipeline due to thread switching, so CacheAbleFrame is needed
frame = Frame::getCacheAbleFrame(frame);
if (frame->getTrackType() == TrackVideo) {
// 视频时遇到第一帧配置帧或关键帧则标记为gop开始处 [AUTO-TRANSLATED:66247aa8]
// When it is a video, if the first frame configuration frame or key frame is encountered, it is marked as the beginning of the GOP
auto video_key_pos = frame->keyFrame() || frame->configFrame();
_ring->write(frame, video_key_pos && !_video_key_pos);
if (!frame->dropAble()) {
_video_key_pos = video_key_pos;
}
} else {
// 没有视频时设置is_key为true目的是关闭gop缓存 [AUTO-TRANSLATED:f3223755]
// When there is no video, set is_key to true to disable gop caching
_ring->write(frame, !haveVideo());
}
}
return ret;
}
bool MultiMediaSourceMuxer::isEnabled(){
GET_CONFIG(uint32_t, stream_none_reader_delay_ms, General::kStreamNoneReaderDelayMS);
if (!_is_enable || _last_check.elapsedTime() > stream_none_reader_delay_ms) {
// 无人观看时,每次检查是否真的无人观看 [AUTO-TRANSLATED:48bc59c6]
// When no one is watching, check each time if there is really no one watching
// 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) [AUTO-TRANSLATED:a7dfddc4]
// When someone is watching, check again after a certain delay to see if no one is watching (save performance)
_is_enable = (_rtmp ? _rtmp->isEnabled() : false) ||
(_rtsp ? _rtsp->isEnabled() : false) ||
(_ts ? _ts->isEnabled() : false) ||
(_fmp4 ? _fmp4->isEnabled() : false) ||
(_ring ? (bool)_ring->readerCount() : false) ||
(_hls ? _hls->isEnabled() : false) ||
(_hls_fmp4 ? _hls_fmp4->isEnabled() : false) ||
_mp4;
if (_is_enable) {
// 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 [AUTO-TRANSLATED:03ab47cf]
// When no one is watching, do not refresh the timer, because each time no one is watching, it will be checked, so refreshing the counter is meaningless and wastes cpu
_last_check.resetTime();
}
}
return _is_enable;
}
}//namespace mediakit