src/main.rs

@@ -1,5 +1,5 @@
 extern crate rscam;
-use std::{env, time::Instant};
+use std::time::Instant;
 
 use fltk::{
     app::App,
@@ -9,36 +9,25 @@ use fltk::{
     prelude::{GroupExt, WidgetBase, WidgetExt},
     window::Window,
 };
-use image::Rgb;
 use rscam::{Camera, Config};
 
 fn main() {
-    let args: Vec<String> = env::args().collect();
-    println!("{:?}", args);
-    let camera_device = &args[1];
-    let w = args[2].clone();
-    let h = args[3].clone();
-    let fps = args[4].clone();
     let mut camera_open = false;
     let app = App::default();
-    let mut camera_window = Window::new(100, 100, 400, 300, "Camera Video Output Window");
-    let mut camera_frame = Frame::default_fill();
-    camera_window.end();
-    camera_window.show();
-    let mut color_window = Window::new(100, 600, 400, 300, "Video Output Window");
-    let mut color_frame = Frame::default_fill();
-    color_window.end();
-    color_window.show();
+    let mut wind = Window::new(100, 100, 400, 300, "Hello from rust");
+    let mut frame = Frame::default_fill();
+    wind.end();
+    wind.show();
     // app.run().unwrap();
     // 打开摄像头设备
-    let mut camera = Camera::new(camera_device).unwrap();
+    let mut camera = Camera::new("/dev/video0").unwrap();
 
     // 配置摄像头参数
     match camera.start(&Config {
         // use command 'v4l2-ctl --list-formats-ext' see more...
-        interval: (1, parse(fps)),        // 设置帧率为 30fps
-        resolution: (parse(w), parse(h)), // 设置分辨率为 640x480
-        format: b"MJPG",                  // 设置图像格式为 MJPG
+        interval: (1, 210),     // 设置帧率为 30fps
+        resolution: (640, 400), // 设置分辨率为 640x480
+        format: b"MJPG",        // 设置图像格式为 MJPG
         ..Default::default()
     }) {
         Ok(_) => camera_open = true,
@@ -55,25 +44,15 @@ fn main() {
                 Ok(data) => {
                     let start = Instant::now();
                     let img = image::load_from_memory(&data).unwrap();
-                    let l_data = img.to_luma8();
-                    let mut rgb_data = img.to_rgb8();
+                    let rgb_data = img.to_luma8();
                     if w == 0 {
-                        w = l_data.width() as i32;
-                        h = l_data.height() as i32;
+                        w = rgb_data.width() as i32;
+                        h = rgb_data.height() as i32;
                     }
-                    for tmp_x in 0..30 {
-                        for tmp_y in 0..60 {
-                            rgb_data.put_pixel(tmp_x, tmp_y, Rgb([102, 204, 255]));
-                        }
-                    }
-                    let fltk_l_image =
-                        RgbImage::new(l_data.as_raw(), w, h, ColorDepth::L8).unwrap();
-                    let fltk_rgb_image =
-                        RgbImage::new(rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
-                    camera_frame.set_image(Some(fltk_l_image));
-                    color_frame.set_image(Some(fltk_rgb_image));
-                    camera_frame.redraw();
-                    color_frame.redraw();
+                    let fltk_image =
+                        RgbImage::new(&rgb_data.as_raw(), w, h, ColorDepth::L8).unwrap();
+                    frame.set_image(Some(fltk_image));
+                    frame.redraw();
                     let duration = start.elapsed();
                     println!("Time elapsed in DrawImage is: {:?}", duration);
                 }
@@ -86,15 +65,3 @@ fn main() {
         }
     }
 }
-
-/// 从 args 传入的数字转换为 u32
-fn parse(str: String) -> u32 {
-    match str.parse::<u32>() {
-        Ok(data) => return data,
-        Err(e) => {
-            eprintln!("Error:${}", e);
-            println!("Note: rust-v4l2 <video_device> <width> <height> <interval>");
-            return 0;
-        }
-    }
-}