49 lines
1.9 KiB
C++
Executable File
49 lines
1.9 KiB
C++
Executable File
#pragma once
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#include <functional>
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#include <mutex>
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#include <string>
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#include <memory>
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namespace vp_nodes {
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// stream status created by des nodes.
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struct vp_stream_status {
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int channel_index = -1; // channel index
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int frame_index = -1; // latest frame index
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int latency = 0; // latency(ms) relative to src node
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float fps = 0; // output fps of stream, maybe it is not equal to original_fps
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int width = 0; // output width of stream, maybe it is not equal to original_width
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int height = 0; // output height of stream, maybe it is not equal to original_height
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std::string direction; // where the stream goes to
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};
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// callback when stream is going out of pipe, happens in des nodes. MUST not be blocked.
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typedef std::function<void(std::string, vp_stream_status)> vp_stream_status_hooker;
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// allow hookers attached to the pipe (des nodes specifically), hookers get notified when stream is going out of pipe.
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// this class is inherited by vp_des_node only.
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class vp_stream_status_hookable
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{
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private:
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/* data */
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protected:
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std::mutex stream_status_hooker_lock;
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vp_stream_status_hooker stream_status_hooker;
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public:
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vp_stream_status_hookable(/* args */) {}
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~vp_stream_status_hookable() {}
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void set_stream_status_hooker(vp_stream_status_hooker stream_status_hooker) {
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std::lock_guard<std::mutex> guard(stream_status_hooker_lock);
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this->stream_status_hooker = stream_status_hooker;
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}
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void invoke_stream_status_hooker(std::string node_name, vp_stream_status stream_status) {
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std::lock_guard<std::mutex> guard(stream_status_hooker_lock);
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if (this->stream_status_hooker) {
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this->stream_status_hooker(node_name, stream_status);
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}
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}
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};
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} |