提升单track情况下秒开体验

src/Common/MediaSink.h

@@ -22,12 +22,10 @@ using namespace toolkit;
 
 namespace mediakit{
 
-class MediaSinkInterface : public FrameWriterInterface {
+class TrackListener {
 public:
-    typedef std::shared_ptr<MediaSinkInterface> Ptr;
-
-    MediaSinkInterface(){};
-    virtual ~MediaSinkInterface(){};
+    TrackListener() = default;
+    virtual ~TrackListener() = default;
 
     /**
      * 添加track，内部会调用Track的clone方法
@@ -37,25 +35,33 @@ public:
     virtual void addTrack(const Track::Ptr & track) = 0;
 
     /**
-     * 添加所有Track完毕
+     * 添加track完毕
      */
-    virtual void addTrackCompleted() {}
+    virtual void addTrackCompleted() {};
 
     /**
      * 重置track
      */
-    virtual void resetTracks() = 0;
+    virtual void resetTracks() {};
+};
+
+class MediaSinkInterface : public FrameWriterInterface, public TrackListener {
+public:
+    typedef std::shared_ptr<MediaSinkInterface> Ptr;
+
+    MediaSinkInterface() = default;
+    ~MediaSinkInterface() override = default;
 };
 
 /**
  * 该类的作用是等待Track ready()返回true也就是就绪后再通知派生类进行下一步的操作
  * 目的是输入Frame前由Track截取处理下，以便获取有效的信息（譬如sps pps aa_cfg）
  */
-class MediaSink : public MediaSinkInterface , public TrackSource{
+class MediaSink : public MediaSinkInterface, public TrackSource{
 public:
     typedef std::shared_ptr<MediaSink> Ptr;
-    MediaSink(){}
-    virtual ~MediaSink(){}
+    MediaSink() = default;
+    ~MediaSink() override = default;
 
     /**
      * 输入frame
@@ -86,7 +92,8 @@ public:
      * 获取所有Track
      * @param trackReady 是否获取已经准备好的Track
      */
-    vector<Track::Ptr> getTracks(bool trackReady = true) const override ;
+    vector<Track::Ptr> getTracks(bool trackReady = true) const override;
+
 protected:
     /**
      * 某track已经准备好，其ready()状态返回true，
@@ -105,6 +112,7 @@ protected:
      * @param frame
      */
     virtual void onTrackFrame(const Frame::Ptr &frame) {};
+
 private:
     /**
      * 触发onAllTrackReady事件
@@ -116,6 +124,7 @@ private:
      */
     void checkTrackIfReady(const Track::Ptr &track);
     void checkTrackIfReady_l(const Track::Ptr &track);
+
 private:
     bool _all_track_ready = false;
     size_t _max_track_size = 2;

src/Player/PlayerBase.cpp

@@ -106,13 +106,25 @@ float Demuxer::getDuration() const {
     return _fDuration;
 }
 
-void Demuxer::onAddTrack(const Track::Ptr &track){
+void Demuxer::addTrack(const Track::Ptr &track){
     if(_listener){
-        _listener->onAddTrack(track);
+        _listener->addTrack(track);
     }
 }
 
-void Demuxer::setTrackListener(Demuxer::Listener *listener) {
+void Demuxer::addTrackCompleted(){
+    if(_listener){
+        _listener->addTrackCompleted();
+    }
+}
+
+void Demuxer::resetTracks() {
+    if (_listener) {
+        _listener->resetTracks();
+    }
+}
+
+void Demuxer::setTrackListener(TrackListener *listener) {
     _listener = listener;
 }
 

src/Player/PlayerBase.h

@@ -19,6 +19,7 @@
 #include "Util/mini.h"
 #include "Util/RingBuffer.h"
 #include "Common/MediaSource.h"
+#include "Common/MediaSink.h"
 #include "Extension/Frame.h"
 #include "Extension/Track.h"
 using namespace toolkit;
@@ -227,18 +228,10 @@ protected:
     MediaSource::Ptr _pMediaSrc;
 };
 
-
-class Demuxer : public PlayerBase{
+class Demuxer : public PlayerBase, public TrackListener{
 public:
-    class Listener{
-    public:
-        Listener() = default;
-        virtual ~Listener() = default;
-        virtual void onAddTrack(const Track::Ptr &track) = 0;
-    };
-
-    Demuxer(){};
-    virtual ~Demuxer(){};
+    Demuxer() = default;
+    ~Demuxer() override = default;
 
     /**
      * 返回是否完成初始化完毕
@@ -267,15 +260,19 @@ public:
     /**
      * 设置track监听器
      */
-    void setTrackListener(Listener *listener);
+    void setTrackListener(TrackListener *listener);
+
 protected:
-    void onAddTrack(const Track::Ptr &track);
+    void addTrack(const Track::Ptr &track) override;
+    void addTrackCompleted() override;
+    void resetTracks() override;
+
 protected:
-    Listener *_listener = nullptr;
+    float _fDuration = 0;
+    Ticker _ticker;
     AudioTrack::Ptr _audioTrack;
     VideoTrack::Ptr _videoTrack;
-    Ticker _ticker;
-    float _fDuration = 0;
+    TrackListener *_listener = nullptr;
 };
 
 } /* namespace mediakit */

src/Rtmp/RtmpDemuxer.cpp

@@ -72,6 +72,11 @@ bool RtmpDemuxer::loadMetaData(const AMFValue &val){
     } catch (std::exception &ex) {
         WarnL << ex.what();
     }
+
+    if (ret) {
+        //metadata中存在track相关的描述，那么我们根据metadata判断有多少个track
+        addTrackCompleted();
+    }
     return ret;
 }
 
@@ -114,7 +119,7 @@ void RtmpDemuxer::makeVideoTrack(const AMFValue &videoCodec, int bit_rate) {
         if (_video_rtmp_decoder) {
             //设置rtmp解码器代理，生成的frame写入该Track
             _video_rtmp_decoder->addDelegate(_videoTrack);
-            onAddTrack(_videoTrack);
+            addTrack(_videoTrack);
             _try_get_video_track = true;
         } else {
             //找不到相应的rtmp解码器，该track无效
@@ -133,7 +138,7 @@ void RtmpDemuxer::makeAudioTrack(const AMFValue &audioCodec,int sample_rate, int
         if (_audio_rtmp_decoder) {
             //设置rtmp解码器代理，生成的frame写入该Track
             _audio_rtmp_decoder->addDelegate(_audioTrack);
-            onAddTrack(_audioTrack);
+            addTrack(_audioTrack);
             _try_get_audio_track = true;
         } else {
             //找不到相应的rtmp解码器，该track无效

src/Rtmp/RtmpMediaSourceImp.h

@@ -27,7 +27,7 @@ using namespace std;
 using namespace toolkit;
 
 namespace mediakit {
-class RtmpMediaSourceImp: public RtmpMediaSource, public Demuxer::Listener , public MultiMediaSourceMuxer::Listener {
+class RtmpMediaSourceImp: public RtmpMediaSource, public TrackListener , public MultiMediaSourceMuxer::Listener {
 public:
     typedef std::shared_ptr<RtmpMediaSourceImp> Ptr;
 
@@ -97,13 +97,28 @@ public:
     /**
      * _demuxer触发的添加Track事件
      */
-    void onAddTrack(const Track::Ptr &track) override {
+    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
      */

src/Rtsp/RtspDemuxer.cpp

@@ -38,6 +38,9 @@ void RtspDemuxer::loadSdp(const SdpParser &attr) {
                 break;
         }
     }
+    //rtsp能通过sdp立即知道有多少个track
+    addTrackCompleted();
+
     auto titleTrack = attr.getTrack(TrackTitle);
     if(titleTrack){
         _fDuration = titleTrack->_duration;
@@ -83,7 +86,7 @@ void RtspDemuxer::makeAudioTrack(const SdpTrack::Ptr &audio) {
         if(_audioRtpDecoder){
             //设置rtp解码器代理，生成的frame写入该Track
             _audioRtpDecoder->addDelegate(_audioTrack);
-            onAddTrack(_audioTrack);
+            addTrack(_audioTrack);
         } else{
             //找不到相应的rtp解码器，该track无效
             _audioTrack.reset();
@@ -101,7 +104,7 @@ void RtspDemuxer::makeVideoTrack(const SdpTrack::Ptr &video) {
         if(_videoRtpDecoder){
             //设置rtp解码器代理，生成的frame写入该Track
             _videoRtpDecoder->addDelegate(_videoTrack);
-            onAddTrack(_videoTrack);
+            addTrack(_videoTrack);
         }else{
             //找不到相应的rtp解码器，该track无效
             _videoTrack.reset();

src/Rtsp/RtspMediaSourceImp.h

@@ -18,7 +18,7 @@
 using namespace toolkit;
 
 namespace mediakit {
-class RtspMediaSourceImp : public RtspMediaSource, public Demuxer::Listener , public MultiMediaSourceMuxer::Listener  {
+class RtspMediaSourceImp : public RtspMediaSource, public TrackListener, public MultiMediaSourceMuxer::Listener  {
 public:
     typedef std::shared_ptr<RtspMediaSourceImp> Ptr;
 
@@ -88,13 +88,28 @@ public:
     /**
      * _demuxer触发的添加Track事件
      */
-    void onAddTrack(const Track::Ptr &track) override {
+    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
      */