cell/tests/camera_info.js

// Test the new camera functionality
var camera = use('camera');

// Get camera drivers
var drivers = camera.drivers();
console.log("Available camera drivers:", drivers);

// Get list of cameras
var cameras = camera.list();
console.log("Found", cameras.length, "cameras");

// Get info about each camera
for (var i = 0; i < cameras.length; i++) {
  var cam_id = cameras[i];
  console.log("\nCamera", i + 1, "ID:", cam_id);
  console.log("  Name:", camera.name(cam_id));
  console.log("  Position:", camera.position(cam_id));
  
  // Get supported formats
  var formats = camera.supported_formats(cam_id);
  console.log("  Supported formats:", formats.length);
  
  // Show first few formats
  for (var j = 0; j < formats.length; j++) {
    var fmt = formats[j];
    console.log("    Format", j + 1 + ":");
    console.log("      Pixel format:", fmt.format);
    console.log("      Resolution:", fmt.width + "x" + fmt.height);
    console.log("      FPS:", fmt.framerate_numerator + "/" + fmt.framerate_denominator, 
                "(" + (fmt.framerate_numerator / fmt.framerate_denominator) + ")");
    console.log("      Colorspace:", fmt.colorspace);
  }
}

// Open the first camera with a specific format if available
if (cameras.length > 0) {
  console.log("\nOpening first camera...");
  var cam_id = cameras[0];
  var formats = camera.supported_formats(cam_id);
  
  // Try to find a 640x480 format
  var preferred_format = null;
  for (var i = 0; i < formats.length; i++) {
    if (formats[i].width === 640 && formats[i].height === 480) {
      preferred_format = formats[i];
      break;
    }
  }
  
  var cam;
  if (preferred_format) {
    console.log("Opening with 640x480 format...");
    cam = camera.open(cam_id, preferred_format);
  } else {
    console.log("Opening with default format...");
    cam = camera.open(cam_id);
  }
  
  if (cam) {
    console.log("Camera opened successfully!");
    console.log("Driver being used:", cam.get_driver());
    
    // Get the actual format being used
    var actual_format = cam.get_format();
    console.log("Actual format being used:");
    console.log("  Pixel format:", actual_format.format);
    console.log("  Resolution:", actual_format.width + "x" + actual_format.height);
    console.log("  FPS:", actual_format.framerate_numerator + "/" + actual_format.framerate_denominator,
                "(" + (actual_format.framerate_numerator / actual_format.framerate_denominator) + ")");
    console.log("  Colorspace:", actual_format.colorspace);
    
    // Clean up - camera will be closed when object is freed
    cam = null;
  }
}