first commit

objects/vp_video_record_control_meta.h

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+
+#pragma once
+
+#include "vp_control_meta.h"
+
+namespace vp_objects {
+    // control meta for video recording, it is a specific type of vp_control_meta.
+    // when vp_record_node handle this control meta, the node will start recording video asynchronously, begin with the Latest Next frame in pipeline (pre-record frames excluded).
+    // refer to ./nodes/record/README.md for more details
+    class vp_video_record_control_meta: public vp_control_meta {
+    private:
+        /* data */
+    public:
+        vp_video_record_control_meta(int channel_index, 
+                                    std::string video_file_name_without_ext, 
+                                    int record_video_duration = 0,
+                                    bool osd = false);
+        ~vp_video_record_control_meta();
+
+        // copy myself
+        virtual std::shared_ptr<vp_meta> clone() override;
+
+        // file name without extension, like 2022-10-20_22-30-20_aaa_bbb, which should be a meaningful and unique name.
+        // generated by sender who want to record video
+        std::string video_file_name_without_ext;
+
+        // record video duration (seconds), not including pre-record time.
+        // 0 means using the value setted by vp_record_node.
+        int record_video_duration = 0;
+
+        // record type (osd frame or not)
+        bool osd = false;
+    };
+
+}