incremental
diff --git a/src/getvideo_main.cpp b/src/getvideo_main.cpp
new file mode 100644
index 0000000..f73ee30
--- /dev/null
+++ b/src/getvideo_main.cpp
@@ -0,0 +1,67 @@
+#include <video.h>
+#include <fstream>
+#include <iostream>
+#include <iomanip>
+
+namespace AstVideo {
+class VideoPuller {
+ public:
+  VideoPuller() {}
+
+  void initialize() {
+    std::cout << "Opening /dev/video\n";
+    file.open("/dev/video", std::ios::out | std::ios::in | std::ios::binary);
+    if (!file.is_open()) {
+      std::cout << "Failed to open /dev/video\n";
+    }
+    IMAGE_INFO image_info{};
+
+    file.write(reinterpret_cast<char*>(&image_info), sizeof(image_info));
+
+    file.read(reinterpret_cast<char*>(&image_info), sizeof(image_info));
+    
+    if (file){
+        std::cout << "Read succeeded\n";
+    }
+    
+    auto pt = reinterpret_cast<char*>(&image_info);
+
+    for(int i=0; i<sizeof(image_info); i++){
+        std::cout << std::hex << std::setfill('0') << std::setw(2) << int(*(pt + i)) << " ";
+    }
+    
+    std::cout << "\n";
+
+    std::cout << "typedef struct _video_features {\n";
+    std::cout << "short jpg_fmt: " << image_info.parameter.features.jpg_fmt << "\n";
+    std::cout << "short lumin_tbl;" << image_info.parameter.features.lumin_tbl << "\n";
+    std::cout << "short chrom_tbl;" << image_info.parameter.features.chrom_tbl << "\n";
+    std::cout << "short tolerance_noise;" << image_info.parameter.features.tolerance_noise << "\n";
+    std::cout << "int w;" << image_info.parameter.features.w << "\n";
+    std::cout << "int h;" << image_info.parameter.features.h << "\n";
+    //std::cout << "unsigned char *buf;" << image_info.parameter.features.buf << "\n";
+    std::cout << "} FEATURES_TAG;\n";
+
+    std::cout << "typedef struct _image_info {";
+    std::cout << "short do_image_refresh;" << image_info.do_image_refresh << "\n";
+    std::cout << "char qc_valid;" << image_info.qc_valid << "\n";
+    std::cout << "unsigned int len;" << image_info.len << "\n";
+    std::cout << "int crypttype;" << image_info.crypttype << "\n";
+    std::cout << "char cryptkey[16];" << image_info.cryptkey << "\n";
+    std::cout << "union {\n";
+    std::cout << "    FEATURES_TAG features;\n";
+    std::cout << "    AST_CURSOR_TAG cursor_info;\n";
+    std::cout << "} parameter;\n";
+    std::cout << "} IMAGE_INFO;\n";
+    std::cout << std::endl;
+  }
+  std::fstream file;
+};
+}
+
+int main() {
+  AstVideo::VideoPuller p;
+  p.initialize();
+
+  return 1;
+}
\ No newline at end of file