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#include "vp_node.h"
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namespace vp_nodes {
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// split pipeline into multi branches. although all other non-Des nodes have the ability to split pipeline, but vp_split_node has more parameters and flexible behaviour.
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// by default, other non-Des nodes split pipeline by simple copying, which just copy pointer of meta and push to next nodes, each next node handle the same meta allocated in heap(not thread-safe).
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// in addition, other non-Des nodes push meta to next nodes without difference, each next node receive equal number of meta to previous node.
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//
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// in vp_split_node, we have below parameters to set:
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// split_with_channel_index (false by default): if true, push meta according to its channel index, only those next nodes having the same channel index can receive meta.
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// split_with_deep_copy (false by default) : if true, copy meta in heap and create new pointer, then push the new pointer to next nodes, next nodes have a totally different meta with previous.
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//
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// note: split_with_deep_copy = true will affect the performance of pipeline.
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// above paramters can be set as true at the same time.
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class vp_split_node: public vp_node
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{
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private:
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/* data */
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protected:
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// re-implement how to push meta to next nodes.
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virtual void push_meta(std::shared_ptr<vp_objects::vp_meta> meta) override;
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public:
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vp_split_node(std::string node_name, bool split_with_channel_index = false, bool split_with_deep_copy = false);
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~vp_split_node();
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bool split_with_channel_index;
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bool split_with_deep_copy;
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};
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}
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