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|
//! Main binary for the Geek szitman supercamera
use clap::Parser;
use geek_szitman_supercamera::{Error, SuperCamera, video};
use tracing::{error, info, warn};
use tracing_subscriber::{fmt, EnvFilter};
#[derive(Parser)]
#[command(
name = "geek-szitman-supercamera",
about = "Rust implementation of Geek szitman supercamera endoscope viewer",
version,
author
)]
struct Cli {
/// Enable debug logging
#[arg(short, long)]
debug: bool,
/// Enable verbose logging
#[arg(short, long)]
verbose: bool,
/// Video backend to use
#[arg(short, long, value_enum, default_value = "pipewire")]
backend: BackendChoice,
/// Output directory for saved frames
#[arg(short, long, default_value = "pics")]
output_dir: String,
/// Frame rate hint
#[arg(short, long, default_value = "30")]
fps: u32,
/// Exit automatically after N seconds (0 = run until Ctrl+C)
#[arg(long, default_value = "0")]
timeout_seconds: u64,
}
#[derive(Clone, clap::ValueEnum)]
enum BackendChoice {
PipeWire,
V4L2,
Stdout,
}
impl std::fmt::Display for BackendChoice {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
BackendChoice::PipeWire => write!(f, "pipewire"),
BackendChoice::V4L2 => write!(f, "v4l2"),
BackendChoice::Stdout => write!(f, "stdout"),
}
}
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Parse command line arguments
let cli = Cli::parse();
// Initialize logging
init_logging(cli.debug, cli.verbose)?;
info!("Starting Geek szitman supercamera viewer");
info!("Backend: {}", cli.backend);
info!("Output directory: {}", cli.output_dir);
info!("Frame rate hint: {} fps", cli.fps);
// Create output directory
std::fs::create_dir_all(&cli.output_dir)?;
// Set up signal handling
let signal_handler = setup_signal_handling()?;
// Create camera instance with selected backend
let camera = match cli.backend {
BackendChoice::PipeWire => SuperCamera::with_backend(crate::video::VideoBackendType::PipeWire),
BackendChoice::V4L2 => SuperCamera::with_backend(crate::video::VideoBackendType::V4L2),
BackendChoice::Stdout => SuperCamera::with_backend(crate::video::VideoBackendType::Stdout),
};
let camera = match camera {
Ok(camera) => camera,
Err(e) => {
error!("Failed to create camera: {}", e);
return Err(e.into());
}
};
// Start camera stream
if let Err(e) = camera.start_stream() {
error!("Failed to start camera stream: {}", e);
return Err(e.into());
}
info!("Camera stream started successfully");
info!("Press Ctrl+C to stop");
// Wait for shutdown signal or optional timeout
if cli.timeout_seconds > 0 {
let timed_out = !signal_handler
.wait_for_shutdown_with_timeout(std::time::Duration::from_secs(cli.timeout_seconds));
if timed_out {
info!("Timeout reached ({}s), initiating shutdown...", cli.timeout_seconds);
}
} else {
signal_handler.wait_for_shutdown();
}
info!("Shutting down...");
// Stop camera stream
if let Err(e) = camera.stop_stream() {
warn!("Error stopping camera stream: {}", e);
}
info!("Shutdown complete");
Ok(())
}
/// Initialize logging system
fn init_logging(debug: bool, verbose: bool) -> Result<(), Box<dyn std::error::Error>> {
let filter = if verbose {
"geek_szitman_supercamera=trace"
} else if debug {
"geek_szitman_supercamera=debug"
} else {
"geek_szitman_supercamera=info"
};
let env_filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new(filter));
fmt::Subscriber::builder()
.with_env_filter(env_filter)
.with_target(false)
.with_thread_ids(false)
.with_thread_names(false)
.with_file(false)
.with_line_number(false)
.init();
Ok(())
}
/// Set up signal handling for graceful shutdown
fn setup_signal_handling(
) -> Result<geek_szitman_supercamera::utils::SignalHandler, Box<dyn std::error::Error>> {
geek_szitman_supercamera::utils::SignalHandler::new()
}
/// Handle errors gracefully
fn handle_error(error: Error) {
match error {
Error::Usb(e) => {
error!("USB error: {}", e);
match e {
geek_szitman_supercamera::error::UsbError::DeviceNotFound => {
eprintln!("Device not found. Please check that the camera is connected.");
}
geek_szitman_supercamera::error::UsbError::PermissionDenied => {
eprintln!("Permission denied. Try running with sudo or add udev rules.");
}
geek_szitman_supercamera::error::UsbError::DeviceDisconnected => {
eprintln!("Device disconnected.");
}
_ => {
eprintln!("USB error: {e}");
}
}
}
Error::Video(e) => {
error!("Video backend error: {}", e);
match e {
geek_szitman_supercamera::error::VideoError::PipeWire(msg) => {
eprintln!("PipeWire error: {msg}. Make sure PipeWire is running.");
}
geek_szitman_supercamera::error::VideoError::V4L2(msg) => {
eprintln!("V4L2 error: {msg}. Make sure v4l2loopback is loaded.");
}
geek_szitman_supercamera::error::VideoError::Stdout(msg) => {
eprintln!("Stdout error: {msg}. Check if stdout is writable.");
}
_ => {
eprintln!("Video error: {e}");
}
}
}
Error::Protocol(e) => {
error!("Protocol error: {}", e);
eprintln!("Protocol error: {e}. Check camera firmware version.");
}
Error::Jpeg(e) => {
error!("JPEG error: {}", e);
eprintln!("JPEG processing error: {e}");
}
Error::System(e) => {
error!("System error: {}", e);
eprintln!("System error: {e}");
}
Error::Generic(msg) => {
error!("Generic error: {}", msg);
eprintln!("Error: {msg}");
}
}
}
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