skeleton for the pipeline complete

src/vulkan_engine.cpp

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+#include "vulkan_engine.hpp"
+

src/vulkan_engine.hpp

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+#pragma once
+
+#include <cstdint>
+#include <sys/types.h>
+#include <vulkan/vulkan_core.h>
+class VulkanEngine{
+  public:
+    void init();
+    void run();
+    void cleanup();
+  private:
+  
+    VkInstance _instance;
+    VkDebugUtilsMessengerEXT _debug_messenger;
+    VkPhysicalDevice _chosen_device;
+    VkDevice _device;
+    
+    VkQueue _graphics_queue;
+    VkQueue _compute_queue;
+    VkQueue _video_queue;
+    
+    uint32_t _graphics_queue_family;
+    uint32_t _compute_queue_family;
+    uint32_t _video_queue_family;
+    
+    VkCommandPool _graphics_command_pool;
+    VkCommandPool _compute_command_pool;
+    VkCommandPool _video_command_pool;
+    
+    struct Frame{
+      VkCommandBuffer graphics_comm_buf;
+      VkCommandBuffer compute_comm_buf;
+      VkCommandBuffer video_comm_buff;
+      VkSemaphore timeline;
+      uint64_t timeline_value;
+    };
+    
+    static constexpr uint32_t FRAME_OVERLAP = uint32_t{3};
+    Frame _frames[FRAME_OVERLAP];
+    uint64_t _frame_number = uint64_t {0};
+    
+    VkImage _render_image;
+    VkImageView _render_view;
+    
+    VkImage _yuv_image;
+    VkImageView _yuv_image_view;
+
+    VkVideoSessionKHR _video_session;
+    VkVideoSessionParametersKHR _video_session_params;
+    VkVideoEncodeInfoKHR _encode_info;
+    
+    VkBuffer _bitstream_buffer;
+  private:
+    void init_vulkan();
+    void init_device();
+    void init_commands();
+    void init_images();
+    void init_video();
+    void init_sync();
+};