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https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-26 04:31:37 +08:00
优化类命名以及添加注释
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@ -292,9 +292,12 @@ private:
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map<void *,FrameWriterInterface::Ptr> _delegateMap;
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};
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class FrameNoCacheAble : public Frame{
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/**
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* 通过Frame接口包装指针,方便使用者把自己的数据快速接入ZLMediaKit
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*/
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class FrameFromPtr : public Frame{
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public:
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typedef std::shared_ptr<FrameNoCacheAble> Ptr;
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typedef std::shared_ptr<FrameFromPtr> Ptr;
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char *data() const override{
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return _ptr;
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}
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@ -316,14 +319,6 @@ public:
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uint32_t prefixSize() const override{
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return _prefixSize;
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}
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/**
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* 该帧不可缓存
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* @return
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*/
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bool cacheAble() const override {
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return false;
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}
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protected:
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char *_ptr;
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uint32_t _size;
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@ -332,7 +327,31 @@ protected:
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uint32_t _prefixSize;
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};
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class FrameCacheAble : public FrameNoCacheAble {
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/**
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* 不可缓存的帧,在DevChannel类中有用到。
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* 该帧类型用于防止内存拷贝,直接使用指针传递数据
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* 在大多数情况下,ZLMediaKit是同步对帧数据进行使用和处理的
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* 所以提供此类型的帧很有必要,但是有时又无法避免缓存帧做后续处理
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* 所以可以通过Frame::getCacheAbleFrame方法拷贝一个可缓存的帧
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*/
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class FrameNoCacheAble : public FrameFromPtr{
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public:
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typedef std::shared_ptr<FrameNoCacheAble> Ptr;
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/**
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* 该帧不可缓存
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* @return
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*/
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bool cacheAble() const override {
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return false;
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}
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};
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/**
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* 该对象的功能是把一个不可缓存的帧转换成可缓存的帧
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* @see FrameNoCacheAble
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*/
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class FrameCacheAble : public FrameFromPtr {
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public:
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typedef std::shared_ptr<FrameCacheAble> Ptr;
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