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MediaSink: 确保收到数据后才触发TrackReady回调

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This commit is contained in:
ziyue 2021-11-10 14:35:37 +08:00
parent 1513e9a857
commit e51a78ebdc
2 changed files with 25 additions and 30 deletions
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46
src/Common/MediaSink.cpp
View File

@ -39,7 +39,7 @@ bool MediaSink::addTrack(const Track::Ptr &track_in) {
//克隆Track，只拷贝其数据，不拷贝其数据转发关系 //克隆Track，只拷贝其数据，不拷贝其数据转发关系
auto track = track_in->clone(); auto track = track_in->clone();
auto track_type = track->getTrackType(); auto track_type = track->getTrackType();
_track_map[track_type] = track; _track_map[track_type] = std::make_pair(track, false);
_track_ready_callback[track_type] = [this, track]() { _track_ready_callback[track_type] = [this, track]() {
onTrackReady(track); onTrackReady(track);
}; };
@ -76,31 +76,27 @@ bool MediaSink::inputFrame(const Frame::Ptr &frame) {
if (it == _track_map.end()) { if (it == _track_map.end()) {
return false; return false;
} }
auto ret = it->second->inputFrame(frame); //got frame
it->second.second = true;
auto ret = it->second.first->inputFrame(frame);
if (_mute_audio_maker && frame->getTrackType() == TrackVideo) { if (_mute_audio_maker && frame->getTrackType() == TrackVideo) {
//视频驱动产生静音音频 //视频驱动产生静音音频
_mute_audio_maker->inputFrame(frame); _mute_audio_maker->inputFrame(frame);
} }
checkTrackIfReady(nullptr); checkTrackIfReady();
return ret; return ret;
} }
void MediaSink::checkTrackIfReady_l(const Track::Ptr &track){ void MediaSink::checkTrackIfReady(){
//Track由未就绪状态转换成就绪状态，我们就触发onTrackReady回调
auto it_callback = _track_ready_callback.find(track->getTrackType());
if (it_callback != _track_ready_callback.end() && track->ready()) {
it_callback->second();
_track_ready_callback.erase(it_callback);
}
}
void MediaSink::checkTrackIfReady(const Track::Ptr &track){
if (!_all_track_ready && !_track_ready_callback.empty()) { if (!_all_track_ready && !_track_ready_callback.empty()) {
if (track) { for (auto &pr : _track_map) {
checkTrackIfReady_l(track); if (pr.second.second && pr.second.first->ready()) {
} else { //Track由未就绪状态转换成就绪状态，我们就触发onTrackReady回调
for (auto &pr : _track_map) { auto it = _track_ready_callback.find(pr.first);
checkTrackIfReady_l(pr.second); if (it != _track_ready_callback.end()) {
it->second();
_track_ready_callback.erase(it);
}
} }
} }
} }
@ -133,7 +129,7 @@ void MediaSink::checkTrackIfReady(const Track::Ptr &track){
void MediaSink::addTrackCompleted(){ void MediaSink::addTrackCompleted(){
_max_track_size = _track_map.size(); _max_track_size = _track_map.size();
checkTrackIfReady(nullptr); checkTrackIfReady();
} }
void MediaSink::emitAllTrackReady() { void MediaSink::emitAllTrackReady() {
@ -147,8 +143,8 @@ void MediaSink::emitAllTrackReady() {
_track_ready_callback.clear(); _track_ready_callback.clear();
//移除未准备好的Track //移除未准备好的Track
for (auto it = _track_map.begin(); it != _track_map.end();) { for (auto it = _track_map.begin(); it != _track_map.end();) {
if (!it->second->ready()) { if (!it->second.second || !it->second.first->ready()) {
WarnL << "track not ready for a long time, ignored: " << it->second->getCodecName(); WarnL << "track not ready for a long time, ignored: " << it->second.first->getCodecName();
it = _track_map.erase(it); it = _track_map.erase(it);
continue; continue;
} }
@ -184,13 +180,13 @@ void MediaSink::onAllTrackReady_l() {
_all_track_ready = true; _all_track_ready = true;
} }
vector<Track::Ptr> MediaSink::getTracks(bool trackReady) const{ vector<Track::Ptr> MediaSink::getTracks(bool ready) const{
vector<Track::Ptr> ret; vector<Track::Ptr> ret;
for (auto &pr : _track_map){ for (auto &pr : _track_map){
if(trackReady && !pr.second->ready()){ if(ready && !pr.second.first->ready()){
continue; continue;
} }
ret.emplace_back(pr.second); ret.emplace_back(pr.second.first);
} }
return ret; return ret;
} }
@ -256,7 +252,7 @@ bool MediaSink::addMuteAudioTrack() {
return false; return false;
} }
auto audio = std::make_shared<AACTrack>(makeAacConfig(MUTE_ADTS_DATA, ADTS_HEADER_LEN)); auto audio = std::make_shared<AACTrack>(makeAacConfig(MUTE_ADTS_DATA, ADTS_HEADER_LEN));
_track_map[audio->getTrackType()] = audio; _track_map[audio->getTrackType()] = std::make_pair(audio, true);
audio->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([this](const Frame::Ptr &frame) { audio->addDelegate(std::make_shared<FrameWriterInterfaceHelper>([this](const Frame::Ptr &frame) {
return onTrackFrame(frame); return onTrackFrame(frame);
})); }));

9
src/Common/MediaSink.h
View File

@ -141,16 +141,15 @@ private:
/** /**
* 检查track是否准备完毕 * 检查track是否准备完毕
*/ */
void checkTrackIfReady(const Track::Ptr &track); void checkTrackIfReady();
void checkTrackIfReady_l(const Track::Ptr &track);
void onAllTrackReady_l(); void onAllTrackReady_l();
private: private:
bool _all_track_ready = false; bool _all_track_ready = false;
size_t _max_track_size = 2; size_t _max_track_size = 2;
unordered_map<int,Track::Ptr> _track_map; unordered_map<int, pair<Track::Ptr, bool/*got frame*/> > _track_map;
unordered_map<int,List<Frame::Ptr> > _frame_unread; unordered_map<int, List<Frame::Ptr> > _frame_unread;
unordered_map<int,function<void()> > _track_ready_callback; unordered_map<int, function<void()> > _track_ready_callback;
Ticker _ticker; Ticker _ticker;
MuteAudioMaker::Ptr _mute_audio_maker; MuteAudioMaker::Ptr _mute_audio_maker;
}; };