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添加注释
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@ -37,6 +37,10 @@ using namespace toolkit;
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namespace mediakit{
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/**
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* 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
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* 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)
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*/
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class MediaSink : public FrameWriterInterface , public std::enable_shared_from_this<MediaSink>{
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public:
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typedef std::shared_ptr<MediaSink> Ptr;
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@ -52,6 +52,9 @@ typedef enum {
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TrackMax = 0x7FFF
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} TrackType;
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/**
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* 编码信息的抽象接口
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*/
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class CodecInfo {
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public:
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typedef std::shared_ptr<CodecInfo> Ptr;
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@ -70,6 +73,9 @@ public:
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virtual CodecId getCodecId() const = 0;
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};
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/**
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* 帧类型的抽象接口
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*/
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class Frame : public Buffer, public CodecInfo{
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public:
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typedef std::shared_ptr<Frame> Ptr;
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@ -92,6 +98,10 @@ public:
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virtual bool keyFrame() const = 0;
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};
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/**
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* 循环池辅助类
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* @tparam T
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*/
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template <typename T>
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class ResourcePoolHelper{
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public:
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@ -107,6 +117,9 @@ private:
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ResourcePool<T> _pool;
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};
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/**
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* 写帧接口的抽闲接口
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*/
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class FrameWriterInterface {
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public:
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typedef std::shared_ptr<FrameWriterInterface> Ptr;
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@ -120,11 +133,18 @@ public:
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virtual void inputFrame(const Frame::Ptr &frame) = 0;
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};
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/**
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* 写帧接口转function,辅助类
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*/
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class FrameWriterInterfaceHelper : public FrameWriterInterface {
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public:
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typedef std::shared_ptr<FrameWriterInterfaceHelper> Ptr;
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typedef std::function<void(const Frame::Ptr &frame)> onWriteFrame;
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/**
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* inputFrame后触发onWriteFrame回调
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* @param cb
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*/
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FrameWriterInterfaceHelper(const onWriteFrame& cb){
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_writeCallback = cb;
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}
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@ -165,6 +185,9 @@ public:
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virtual void setFrameRing(const RingType::Ptr &ring) = 0;
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};
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/**
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* 帧环形缓存
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*/
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class FrameRing : public FrameRingInterface{
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public:
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typedef std::shared_ptr<FrameRing> Ptr;
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@ -202,6 +225,9 @@ protected:
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RingType::Ptr _frameRing;
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};
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/**
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* 支持代理转发的帧环形缓存
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*/
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class FrameRingInterfaceDelegate : public FrameRing {
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public:
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typedef std::shared_ptr<FrameRingInterfaceDelegate> Ptr;
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@ -37,6 +37,9 @@ using namespace toolkit;
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namespace mediakit{
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/**
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* 媒体通道描述类,也支持帧输入输出
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*/
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class Track : public FrameRingInterfaceDelegate , public CodecInfo{
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public:
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typedef std::shared_ptr<Track> Ptr;
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@ -45,25 +48,30 @@ public:
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virtual ~Track(){}
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/**
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* 是否准备好
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* 是否准备好,准备好才能获取譬如sps pps等信息
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* @return
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*/
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virtual bool ready() = 0;
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/**
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* 克隆接口,用于复制本对象用
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* 在调用该接口时只会复制派生类的信息
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* 环形缓存和代理关系不能拷贝,否则会关系紊乱
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* @return
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*/
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virtual Track::Ptr clone() = 0;
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/**
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* 复制拷贝,只能拷贝一些描述信息,
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* 复制拷贝,只能拷贝派生类的信息,
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* 环形缓存和代理关系不能拷贝,否则会关系紊乱
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* @param that
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*/
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Track(const Track &that){}
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};
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/**
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* 视频通道描述Track类,支持获取宽高fps信息
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*/
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class VideoTrack : public Track {
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public:
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typedef std::shared_ptr<VideoTrack> Ptr;
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@ -89,6 +97,9 @@ public:
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virtual float getVideoFps() const = 0;
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};
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/**
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* 音频Track派生类,支持采样率通道数,采用位数信息
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*/
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class AudioTrack : public Track {
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public:
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typedef std::shared_ptr<AudioTrack> Ptr;
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@ -114,6 +125,9 @@ public:
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virtual int getAudioChannel() const = 0;
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};
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/**
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* 264视频通道
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*/
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class H264Track : public VideoTrack{
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public:
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typedef std::shared_ptr<H264Track> Ptr;
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@ -270,6 +284,9 @@ private:
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float _fps = 0;
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};
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/**
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* aac音频通道
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*/
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class AACTrack : public AudioTrack{
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public:
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typedef std::shared_ptr<AACTrack> Ptr;
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