Commit 83a0ee85 by xiongziliang

添加注释

parent 820da438
...@@ -37,6 +37,10 @@ using namespace toolkit; ...@@ -37,6 +37,10 @@ using namespace toolkit;
namespace mediakit{ namespace mediakit{
/**
* 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 FrameWriterInterface , public std::enable_shared_from_this<MediaSink>{ class MediaSink : public FrameWriterInterface , public std::enable_shared_from_this<MediaSink>{
public: public:
typedef std::shared_ptr<MediaSink> Ptr; typedef std::shared_ptr<MediaSink> Ptr;
......
...@@ -52,6 +52,9 @@ typedef enum { ...@@ -52,6 +52,9 @@ typedef enum {
TrackMax = 0x7FFF TrackMax = 0x7FFF
} TrackType; } TrackType;
/**
* 编码信息的抽象接口
*/
class CodecInfo { class CodecInfo {
public: public:
typedef std::shared_ptr<CodecInfo> Ptr; typedef std::shared_ptr<CodecInfo> Ptr;
...@@ -70,6 +73,9 @@ public: ...@@ -70,6 +73,9 @@ public:
virtual CodecId getCodecId() const = 0; virtual CodecId getCodecId() const = 0;
}; };
/**
* 帧类型的抽象接口
*/
class Frame : public Buffer, public CodecInfo{ class Frame : public Buffer, public CodecInfo{
public: public:
typedef std::shared_ptr<Frame> Ptr; typedef std::shared_ptr<Frame> Ptr;
...@@ -92,6 +98,10 @@ public: ...@@ -92,6 +98,10 @@ public:
virtual bool keyFrame() const = 0; virtual bool keyFrame() const = 0;
}; };
/**
* 循环池辅助类
* @tparam T
*/
template <typename T> template <typename T>
class ResourcePoolHelper{ class ResourcePoolHelper{
public: public:
...@@ -107,6 +117,9 @@ private: ...@@ -107,6 +117,9 @@ private:
ResourcePool<T> _pool; ResourcePool<T> _pool;
}; };
/**
* 写帧接口的抽闲接口
*/
class FrameWriterInterface { class FrameWriterInterface {
public: public:
typedef std::shared_ptr<FrameWriterInterface> Ptr; typedef std::shared_ptr<FrameWriterInterface> Ptr;
...@@ -120,11 +133,18 @@ public: ...@@ -120,11 +133,18 @@ public:
virtual void inputFrame(const Frame::Ptr &frame) = 0; virtual void inputFrame(const Frame::Ptr &frame) = 0;
}; };
/**
* 写帧接口转function,辅助类
*/
class FrameWriterInterfaceHelper : public FrameWriterInterface { class FrameWriterInterfaceHelper : public FrameWriterInterface {
public: public:
typedef std::shared_ptr<FrameWriterInterfaceHelper> Ptr; typedef std::shared_ptr<FrameWriterInterfaceHelper> Ptr;
typedef std::function<void(const Frame::Ptr &frame)> onWriteFrame; typedef std::function<void(const Frame::Ptr &frame)> onWriteFrame;
/**
* inputFrame后触发onWriteFrame回调
* @param cb
*/
FrameWriterInterfaceHelper(const onWriteFrame& cb){ FrameWriterInterfaceHelper(const onWriteFrame& cb){
_writeCallback = cb; _writeCallback = cb;
} }
...@@ -165,6 +185,9 @@ public: ...@@ -165,6 +185,9 @@ public:
virtual void setFrameRing(const RingType::Ptr &ring) = 0; virtual void setFrameRing(const RingType::Ptr &ring) = 0;
}; };
/**
* 帧环形缓存
*/
class FrameRing : public FrameRingInterface{ class FrameRing : public FrameRingInterface{
public: public:
typedef std::shared_ptr<FrameRing> Ptr; typedef std::shared_ptr<FrameRing> Ptr;
...@@ -202,6 +225,9 @@ protected: ...@@ -202,6 +225,9 @@ protected:
RingType::Ptr _frameRing; RingType::Ptr _frameRing;
}; };
/**
* 支持代理转发的帧环形缓存
*/
class FrameRingInterfaceDelegate : public FrameRing { class FrameRingInterfaceDelegate : public FrameRing {
public: public:
typedef std::shared_ptr<FrameRingInterfaceDelegate> Ptr; typedef std::shared_ptr<FrameRingInterfaceDelegate> Ptr;
......
...@@ -37,6 +37,9 @@ using namespace toolkit; ...@@ -37,6 +37,9 @@ using namespace toolkit;
namespace mediakit{ namespace mediakit{
/**
* 媒体通道描述类,也支持帧输入输出
*/
class Track : public FrameRingInterfaceDelegate , public CodecInfo{ class Track : public FrameRingInterfaceDelegate , public CodecInfo{
public: public:
typedef std::shared_ptr<Track> Ptr; typedef std::shared_ptr<Track> Ptr;
...@@ -45,25 +48,30 @@ public: ...@@ -45,25 +48,30 @@ public:
virtual ~Track(){} virtual ~Track(){}
/** /**
* 是否准备好 * 是否准备好,准备好才能获取譬如sps pps等信息
* @return * @return
*/ */
virtual bool ready() = 0; virtual bool ready() = 0;
/** /**
* 克隆接口,用于复制本对象用 * 克隆接口,用于复制本对象用
* 在调用该接口时只会复制派生类的信息
* 环形缓存和代理关系不能拷贝,否则会关系紊乱
* @return * @return
*/ */
virtual Track::Ptr clone() = 0; virtual Track::Ptr clone() = 0;
/** /**
* 复制拷贝,只能拷贝一些描述信息, * 复制拷贝,只能拷贝派生类的信息,
* 环形缓存和代理关系不能拷贝,否则会关系紊乱 * 环形缓存和代理关系不能拷贝,否则会关系紊乱
* @param that * @param that
*/ */
Track(const Track &that){} Track(const Track &that){}
}; };
/**
* 视频通道描述Track类,支持获取宽高fps信息
*/
class VideoTrack : public Track { class VideoTrack : public Track {
public: public:
typedef std::shared_ptr<VideoTrack> Ptr; typedef std::shared_ptr<VideoTrack> Ptr;
...@@ -89,6 +97,9 @@ public: ...@@ -89,6 +97,9 @@ public:
virtual float getVideoFps() const = 0; virtual float getVideoFps() const = 0;
}; };
/**
* 音频Track派生类,支持采样率通道数,采用位数信息
*/
class AudioTrack : public Track { class AudioTrack : public Track {
public: public:
typedef std::shared_ptr<AudioTrack> Ptr; typedef std::shared_ptr<AudioTrack> Ptr;
...@@ -114,6 +125,9 @@ public: ...@@ -114,6 +125,9 @@ public:
virtual int getAudioChannel() const = 0; virtual int getAudioChannel() const = 0;
}; };
/**
* 264视频通道
*/
class H264Track : public VideoTrack{ class H264Track : public VideoTrack{
public: public:
typedef std::shared_ptr<H264Track> Ptr; typedef std::shared_ptr<H264Track> Ptr;
...@@ -270,6 +284,9 @@ private: ...@@ -270,6 +284,9 @@ private:
float _fps = 0; float _fps = 0;
}; };
/**
* aac音频通道
*/
class AACTrack : public AudioTrack{ class AACTrack : public AudioTrack{
public: public:
typedef std::shared_ptr<AACTrack> Ptr; typedef std::shared_ptr<AACTrack> Ptr;
......
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