106 lines
2.8 KiB
Plaintext
106 lines
2.8 KiB
Plaintext
// Test camera capture with colorspace conversion
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var camera = use('camera');
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var surface = use('sdl/surface');
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var json = use('json');
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// Get first camera
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var cameras = camera.list();
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if (cameras.length == 0) {
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log.console("No cameras found!");
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$stop();
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}
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var cam_id = cameras[0];
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log.console("Using camera:", camera.name(cam_id));
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// Open camera with default settings
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var cam = camera.open(cam_id);
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if (!cam) {
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log.console("Failed to open camera!");
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$stop();
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}
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// Get the format being used
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var format = cam.get_format();
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log.console("\nCamera format:");
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log.console(" Resolution:", format.width + "x" + format.height);
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log.console(" Pixel format:", format.format);
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log.console(" Colorspace:", format.colorspace);
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// Handle camera approval
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var approved = false;
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$receiver(e => {
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if (e.type == 'camera_device_approved') {
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log.console("\nCamera approved!");
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approved = true;
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} else if (e.type == 'camera_device_denied') {
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log.error("Camera access denied!");
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$stop();
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}
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});
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// Wait for approval then capture
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function capture_test() {
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if (!approved) {
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$delay(capture_test, 0.1);
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return;
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}
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log.console("\nCapturing frame...");
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var surf = cam.capture();
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if (!surf) {
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log.console("No frame captured yet, retrying...");
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$delay(capture_test, 0.1);
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return;
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}
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log.console("\nCaptured surface:");
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log.console(" Size:", surf.width + "x" + surf.height);
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log.console(" Format:", surf.format);
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// Test various colorspace conversions
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log.console("\nTesting colorspace conversions:");
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// Convert to sRGB if not already
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if (format.colorspace != "srgb") {
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try {
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var srgb_surf = surf.convert(surf.format, "srgb");
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log.console(" Converted to sRGB colorspace");
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} catch(e) {
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log.console(" sRGB conversion failed:", e.message);
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}
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}
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// Convert to linear sRGB for processing
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try {
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var linear_surf = surf.convert("rgba8888", "srgb_linear");
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log.console(" Converted to linear sRGB (RGBA8888) for processing");
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} catch(e) {
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log.console(" Linear sRGB conversion failed:", e.message);
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}
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// Convert to JPEG colorspace (common for compression)
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try {
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var jpeg_surf = surf.convert("rgb888", "jpeg");
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log.console(" Converted to JPEG colorspace (RGB888) for compression");
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} catch(e) {
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log.console(" JPEG colorspace conversion failed:", e.message);
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}
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// If YUV format, try BT.709 (HD video standard)
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if (surf.format.indexOf("yuv") != -1 || surf.format.indexOf("yuy") != -1) {
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try {
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var hd_surf = surf.convert(surf.format, "bt709_limited");
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log.console(" Converted to BT.709 limited (HD video standard)");
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} catch(e) {
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log.console(" BT.709 conversion failed:", e.message);
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}
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}
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log.console("\nTest complete!");
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$stop();
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}
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// Start capture test after a short delay
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$delay(capture_test, 0.5); |