scythe/src/bin/scythe-daemon.rs

673 lines
34 KiB
Rust

#![cfg_attr(target_os = "windows", windows_subsystem = "windows")]
use scythe::capture::{Frame, FrameSource};
use scythe::encoder::VideoEncoder;
use scythe::ring::Packet;
use scythe::muxer::Muxer;
use scythe::ipc::{Command, DaemonStatus};
use ringbuf::HeapRb;
use ringbuf::traits::{RingBuffer, Consumer, Observer};
use crossbeam_channel::bounded;
use std::thread;
use std::env;
use std::io::{Read, Write};
use std::sync::atomic::{AtomicBool, AtomicU64, Ordering};
use std::sync::Arc;
fn ensure_wayland_env() {
scythe::overlay::ensure_wayland_env();
}
#[tokio::main]
#[allow(unused_assignments)]
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
ensure_wayland_env();
#[cfg(unix)]
let _lock_file = {
let runtime_dir = env::var("XDG_RUNTIME_DIR").unwrap_or_else(|_| format!("/run/user/{}", unsafe { libc::getuid() }));
let lock_path = format!("{}/scythe.lock", runtime_dir);
match std::fs::OpenOptions::new()
.create(true)
.read(true)
.write(true)
.truncate(false)
.open(&lock_path)
{
Ok(file) => {
use std::os::unix::io::AsRawFd;
let res = unsafe { libc::flock(file.as_raw_fd(), libc::LOCK_EX | libc::LOCK_NB) };
if res != 0 {
eprintln!("Another instance of scythe-daemon is already running. Exiting.");
return Ok(());
}
Some(file)
}
Err(_) => None,
}
};
let initial_config = scythe::config::ScytheConfig::load();
// Automatically register dynamic keybindings on Hyprland if active (no config edits needed)
scythe::hyprland_binds::register_hyprland_binds(&initial_config);
scythe::hyprland_binds::spawn_hyprland_reload_watcher();
let (frame_tx, frame_rx) = bounded::<Frame>(5);
let (cmd_tx, cmd_rx) = bounded::<Command>(32);
let (mux_tx, mux_rx) = bounded::<Vec<Packet>>(1);
let (audio_tx, audio_rx) = bounded::<Vec<f32>>(500);
let is_recording_state = Arc::new(AtomicBool::new(false));
let record_start_state = Arc::new(AtomicU64::new(0));
let replay_enabled_state = Arc::new(AtomicBool::new(initial_config.replay_enabled));
let audio_muted_state = Arc::new(AtomicBool::new(false));
let audio_levels = Arc::new(scythe::capture::audio::AudioLevels::new());
#[cfg(unix)]
let listener = {
let socket_path = scythe::ipc::get_socket_path();
let _ = std::fs::remove_file(&socket_path);
let l = std::os::unix::net::UnixListener::bind(&socket_path)?;
println!("Daemon listening on IPC socket: {}", socket_path);
l
};
#[cfg(windows)]
let listener = {
match std::net::TcpListener::bind("127.0.0.1:42069") {
Ok(l) => {
println!("Daemon listening on TCP IPC: 127.0.0.1:42069");
l
}
Err(_e) => {
if scythe::ipc::query_status().is_ok() {
println!("Another instance of scythe-daemon is already running. Exiting cleanly.");
return Ok(());
}
std::thread::sleep(std::time::Duration::from_millis(500));
std::net::TcpListener::bind("127.0.0.1:42069")?
}
}
};
let cmd_tx_ipc = cmd_tx.clone();
let is_recording_state_ipc = Arc::clone(&is_recording_state);
let record_start_state_ipc = Arc::clone(&record_start_state);
let replay_enabled_state_ipc = Arc::clone(&replay_enabled_state);
let audio_muted_state_ipc = Arc::clone(&audio_muted_state);
let audio_levels_ipc = Arc::clone(&audio_levels);
std::thread::spawn(move || {
for stream in listener.incoming() {
match stream {
Ok(mut stream) => {
let cmd_tx_ipc = cmd_tx_ipc.clone();
let is_recording_state_ipc = Arc::clone(&is_recording_state_ipc);
let record_start_state_ipc = Arc::clone(&record_start_state_ipc);
let replay_enabled_state_ipc = Arc::clone(&replay_enabled_state_ipc);
let audio_muted_state_ipc = Arc::clone(&audio_muted_state_ipc);
let audio_levels_ipc = Arc::clone(&audio_levels_ipc);
std::thread::spawn(move || {
let _ = stream.set_read_timeout(Some(std::time::Duration::from_millis(1500)));
let _ = stream.set_write_timeout(Some(std::time::Duration::from_millis(1500)));
let mut len_buf = [0u8; 4];
if stream.read_exact(&mut len_buf).is_ok() {
let len = u32::from_le_bytes(len_buf) as usize;
let mut payload = vec![0u8; len];
if stream.read_exact(&mut payload).is_ok()
&& let Ok(cmd) = serde_json::from_slice::<Command>(&payload) {
match cmd {
Command::GetStatus => {
let rec = is_recording_state_ipc.load(Ordering::SeqCst);
let start_ts = record_start_state_ipc.load(Ordering::SeqCst);
let now = std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap_or_default().as_secs();
let duration = if rec && start_ts > 0 {
now.saturating_sub(start_ts)
} else {
0
};
let cfg = scythe::config::ScytheConfig::load();
let status = DaemonStatus {
is_recording: rec,
recording_duration_sec: duration,
is_replay_active: replay_enabled_state_ipc.load(Ordering::SeqCst),
audio_muted: audio_muted_state_ipc.load(Ordering::SeqCst),
audio_mode: cfg.audio_mode,
show_cursor: cfg.show_cursor,
mic_volume: cfg.mic_volume,
system_volume: cfg.system_volume,
mic_level_peak: audio_levels_ipc.get_mic_peak(),
system_level_peak: audio_levels_ipc.get_system_peak(),
};
if let Ok(resp) = serde_json::to_vec(&status) {
let len_resp = (resp.len() as u32).to_le_bytes();
let _ = stream.write_all(&len_resp);
let _ = stream.write_all(&resp);
}
},
Command::ToggleCursor => {
let mut cfg = scythe::config::ScytheConfig::load();
cfg.show_cursor = !cfg.show_cursor;
let _ = cfg.save();
#[cfg(target_os = "linux")]
{
let session_type = env::var("XDG_SESSION_TYPE").unwrap_or_default();
if session_type.to_lowercase() == "wayland" {
println!("Cursor display toggled to: {}. Restarting Wayland session...", cfg.show_cursor);
let _ = cmd_tx_ipc.send(Command::StopRecording);
std::thread::sleep(std::time::Duration::from_millis(150));
std::process::exit(0);
}
}
println!("Cursor display toggled to: {}", cfg.show_cursor);
},
Command::CycleAudioMode => {
let mut cfg = scythe::config::ScytheConfig::load();
cfg.audio_mode = match cfg.audio_mode.as_str() {
"system" => "mic",
"mic" => "both",
"both" => "muted",
_ => "system",
}.to_string();
let _ = cfg.save();
println!("Audio mode cycled to: {}", cfg.audio_mode);
let _ = cmd_tx_ipc.try_send(Command::ReloadConfig);
},
Command::StopDaemon => {
println!("StopDaemon requested: Finalizing active recordings...");
scythe::hyprland_binds::unregister_hyprland_binds(&scythe::config::ScytheConfig::load());
let _ = cmd_tx_ipc.send(Command::StopRecording);
std::thread::sleep(std::time::Duration::from_millis(350));
std::process::exit(0);
},
other => {
let _ = cmd_tx_ipc.try_send(other);
}
}
}
}
});
}
Err(err) => {
eprintln!("Socket error: {}", err);
}
}
}
});
let cmd_tx_sig = cmd_tx.clone();
tokio::spawn(async move {
if tokio::signal::ctrl_c().await.is_ok() {
println!("\nReceived shutdown signal. Finalizing recordings...");
let _ = cmd_tx_sig.send(Command::StopRecording);
tokio::time::sleep(std::time::Duration::from_millis(350)).await;
scythe::hyprland_binds::unregister_hyprland_binds(&scythe::config::ScytheConfig::load());
std::process::exit(0);
}
});
let session_type = env::var("XDG_SESSION_TYPE").unwrap_or_else(|_| "x11".to_string());
println!("Detected session type: {}", session_type);
let audio_capture_initial = scythe::capture::audio::AudioCapture::new_with_device_mode_volumes_and_levels(
audio_tx.clone(),
Some(&initial_config.audio_device),
&initial_config.audio_mode,
initial_config.mic_volume,
initial_config.system_volume,
Some(Arc::clone(&audio_levels)),
).ok();
let mut source_opt: Option<Box<dyn FrameSource>> = None;
if std::env::args().any(|a| a == "--mock") {
println!("Initializing MOCK capture...");
source_opt = Some(Box::new(scythe::capture::mock::MockCapture::new()));
} else if cfg!(target_os = "windows") {
#[cfg(target_os = "windows")]
{
println!("Initializing Windows DXGI capture...");
if let Ok(c) = scythe::capture::windows::WindowsCapture::new() {
source_opt = Some(Box::new(c));
}
}
} else if session_type.to_lowercase() == "wayland" {
#[cfg(target_os = "linux")]
{
for attempt in 1..=5 {
println!("Initializing Wayland capture (cursor: {}, attempt {}/5)...", initial_config.show_cursor, attempt);
// Ensure desktop portal is running
let _ = std::process::Command::new("systemctl")
.args(["--user", "start", "xdg-desktop-portal-hyprland"])
.status();
match scythe::capture::wayland::WaylandCapture::new_with_cursor(initial_config.show_cursor).await {
Ok(cap) => {
source_opt = Some(Box::new(cap));
break;
}
Err(e) => {
eprintln!("Wayland capture attempt {} failed: {}", attempt, e);
if attempt < 5 {
let _ = std::process::Command::new("systemctl")
.args(["--user", "restart", "xdg-desktop-portal"])
.status();
tokio::time::sleep(std::time::Duration::from_millis(600)).await;
}
}
}
}
}
} else {
#[cfg(target_os = "linux")]
{
println!("Initializing X11 capture...");
if let Ok(c) = scythe::capture::x11::X11Capture::new() {
source_opt = Some(Box::new(c));
}
}
}
let mut source: Box<dyn FrameSource> = match source_opt {
Some(s) => s,
None => {
eprintln!("Warning: Hardware capture unavailable; falling back to mock capture to preserve daemon IPC.");
Box::new(scythe::capture::mock::MockCapture::new())
}
};
let first_frame = match source.next_frame() {
Ok(f) => f,
Err(e) => {
eprintln!("Initial frame capture error: {}. Using default frame.", e);
Frame::Raw {
data: vec![0u8; 1920 * 1080 * 4],
width: 1920,
height: 1080,
stride: 1920 * 4,
}
}
};
let (width, height) = match &first_frame {
Frame::Raw { width, height, .. } => (*width, *height),
Frame::DmaBuf { width, height, .. } => (*width, *height),
#[cfg(target_os = "windows")]
Frame::D3D11Texture { width, height, .. } => (*width, *height),
};
let _ = frame_tx.send(first_frame);
let capture_tx = frame_tx.clone();
thread::spawn(move || {
loop {
match source.next_frame() {
Ok(frame) => {
let _ = capture_tx.try_send(frame);
}
Err(e) => {
eprintln!("Capture error: {}", e);
break;
}
}
}
});
let rec_state_clone = Arc::clone(&is_recording_state);
let rec_start_clone = Arc::clone(&record_start_state);
let replay_state_clone = Arc::clone(&replay_enabled_state);
let audio_muted_clone = Arc::clone(&audio_muted_state);
let audio_tx_clone = audio_tx.clone();
let audio_info = audio_capture_initial.as_ref().map(|(_, sr, ch)| (*sr, *ch));
#[allow(unused_variables, unused_assignments)]
let mut audio_capture = audio_capture_initial.map(|(c, _, _)| c);
let recorder_handle = thread::spawn(move || {
let mut config = scythe::config::ScytheConfig::load();
replay_state_clone.store(config.replay_enabled, Ordering::SeqCst);
let mut encoder = VideoEncoder::new_with_params(width, height, config.record_bitrate_kbps, config.fps, &config.video_codec)
.expect("Failed to init encoder");
let codec_ctx_ptr = encoder.codec_ctx() as usize;
let mut audio_encoder = if let Some((sr, ch)) = audio_info {
scythe::encoder::AudioEncoder::new(sr as i32, ch as i32).ok()
} else {
scythe::encoder::AudioEncoder::new(48000, 2).ok()
};
let audio_codec_ctx_ptr = audio_encoder.as_ref().map(|e| e.codec_ctx() as usize);
let video_time_base = unsafe { (*(codec_ctx_ptr as *mut ffmpeg_next::ffi::AVCodecContext)).time_base };
let audio_time_base = audio_codec_ctx_ptr.map(|p| unsafe { (*(p as *mut ffmpeg_next::ffi::AVCodecContext)).time_base });
let mut ring = HeapRb::<Packet>::new((config.replay_duration_sec * 120).max(120) as usize);
let mut normal_muxer: Option<Muxer> = None;
let mut normal_recording = false;
let mut normal_waiting_keyframe = false;
let mut rec_base_video_pts: i64 = 0;
let mut rec_base_audio_pts: i64 = -1;
thread::spawn(move || {
while let Ok(drain) = mux_rx.recv() {
let filename = scythe::config::ScytheConfig::format_video_filename("Replay", "mp4");
let full_path = scythe::config::ScytheConfig::load().resolve_save_path(&filename);
println!("Saving replay to {}...", full_path);
// Find the first video IDR keyframe (ignore audio packets which always have keyframe flag set)
let start_video_idx = drain.iter().position(|p| p.stream_index() == 0 && p.is_keyframe());
let first_v_idx = match start_video_idx {
Some(idx) => idx,
None => {
println!("No video keyframe found in buffer, skipping save.");
continue;
}
};
let first_video_pts = drain[first_v_idx].pts();
let first_video_time_us = unsafe {
ffmpeg_next::ffi::av_rescale_q(
first_video_pts,
video_time_base,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
};
// Find the audio packet in the ring buffer closest in real time to the first video keyframe
let first_audio_pts = drain
.iter()
.filter(|p| p.stream_index() == 1)
.min_by_key(|p| {
let a_time_us = if let Some(a_tb) = audio_time_base {
unsafe {
ffmpeg_next::ffi::av_rescale_q(
p.pts(),
a_tb,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
}
} else {
0
};
(a_time_us - first_video_time_us).abs()
})
.map(|p| p.pts())
.unwrap_or(0);
let mut prepared: Vec<(i64, Packet)> = Vec::with_capacity(drain.len());
for (i, p) in drain.iter().enumerate() {
if p.stream_index() == 0 {
if i >= first_v_idx {
let rebased = p.rebased(first_video_pts);
let time_us = unsafe {
ffmpeg_next::ffi::av_rescale_q(
rebased.pts(),
video_time_base,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
};
prepared.push((time_us, rebased));
}
} else if p.stream_index() == 1
&& p.pts() >= first_audio_pts {
let rebased = p.rebased(first_audio_pts);
let time_us = if let Some(a_tb) = audio_time_base {
unsafe {
ffmpeg_next::ffi::av_rescale_q(
rebased.pts(),
a_tb,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
}
} else {
0
};
prepared.push((time_us, rebased));
}
}
// Sort packets by presentation timestamp so muxer receives strictly chronological stream
prepared.sort_by_key(|(t, _)| *t);
let codec_ctx = codec_ctx_ptr as *mut ffmpeg_next::ffi::AVCodecContext;
let audio_codec_ctx = audio_codec_ctx_ptr.map(|p| p as *mut ffmpeg_next::ffi::AVCodecContext);
match unsafe { Muxer::new(&full_path, codec_ctx, audio_codec_ctx) } {
Ok(mut muxer) => {
for (_, p) in prepared {
let _ = muxer.write_packet(&p);
}
let _ = muxer.finalize();
println!("Replay saved to {}!", full_path);
}
Err(e) => {
eprintln!("Failed to create muxer for {}: {}", full_path, e);
}
}
}
});
let stream_start = std::time::Instant::now();
let mut last_video_pts: i64 = -1;
let mut ticker = crossbeam_channel::tick(std::time::Duration::from_nanos(1_000_000_000 / config.fps.max(1) as u64));
let mut latest_frame: Option<Frame> = None;
let mut has_new_frame = false;
loop {
crossbeam_channel::select! {
recv(cmd_rx) -> cmd_res => {
if let Ok(cmd) = cmd_res {
match cmd {
Command::ReloadConfig => {
let new_config = scythe::config::ScytheConfig::load();
if new_config.show_cursor != config.show_cursor {
println!("Cursor display changed ({} -> {}). Restarting daemon for new capture session...", config.show_cursor, new_config.show_cursor);
if let Some(mut m) = normal_muxer.take() {
let _ = m.finalize();
}
std::thread::sleep(std::time::Duration::from_millis(150));
std::process::exit(0);
}
config = new_config;
replay_state_clone.store(config.replay_enabled, Ordering::SeqCst);
audio_muted_clone.store(config.audio_mode == "muted", Ordering::SeqCst);
println!("Daemon config reloaded! Audio mode: {}", config.audio_mode);
let new_capacity = (config.replay_duration_sec * 120).max(120) as usize;
if ring.capacity().get() != new_capacity {
ring = HeapRb::<Packet>::new(new_capacity);
println!("Replay buffer resized to {} packets.", new_capacity);
}
scythe::hyprland_binds::register_hyprland_binds(&config);
audio_capture = match scythe::capture::audio::AudioCapture::new_with_device_mode_volumes_and_levels(
audio_tx_clone.clone(),
Some(&config.audio_device),
&config.audio_mode,
config.mic_volume,
config.system_volume,
Some(Arc::clone(&audio_levels)),
) {
Ok((c, _, _)) => {
println!("Audio capture reloaded for mode: {} (mic: {:.0}%, sys: {:.0}%)", config.audio_mode, config.mic_volume * 100.0, config.system_volume * 100.0);
Some(c)
}
Err(e) => {
eprintln!("Failed to reload audio capture: {}", e);
None
}
};
ticker = crossbeam_channel::tick(std::time::Duration::from_nanos(1_000_000_000 / config.fps.max(1) as u64));
},
Command::SaveReplay => {
if config.replay_enabled {
let drain = ring.iter().cloned().collect::<Vec<_>>();
println!("SaveReplay triggered: {} packets in ring buffer", drain.len());
let _ = mux_tx.try_send(drain);
}
},
Command::StartRecording => {
if !normal_recording {
normal_recording = true;
normal_waiting_keyframe = true;
rec_state_clone.store(true, Ordering::SeqCst);
rec_base_audio_pts = -1;
let now = std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap_or_default().as_secs();
rec_start_clone.store(now, Ordering::SeqCst);
println!("StartRecording requested, waiting for keyframe...");
}
},
Command::StopRecording => {
if let Some(mut m) = normal_muxer.take() {
let _ = m.finalize();
println!("Stopped normal recording.");
}
normal_recording = false;
normal_waiting_keyframe = false;
rec_base_video_pts = 0;
rec_base_audio_pts = -1;
rec_state_clone.store(false, Ordering::SeqCst);
rec_start_clone.store(0, Ordering::SeqCst);
},
Command::ToggleRecording => {
if normal_recording {
if let Some(mut m) = normal_muxer.take() {
let _ = m.finalize();
println!("Stopped normal recording.");
}
normal_recording = false;
normal_waiting_keyframe = false;
rec_base_video_pts = 0;
rec_base_audio_pts = -1;
rec_state_clone.store(false, Ordering::SeqCst);
rec_start_clone.store(0, Ordering::SeqCst);
} else {
normal_recording = true;
normal_waiting_keyframe = true;
rec_state_clone.store(true, Ordering::SeqCst);
rec_base_audio_pts = -1;
let now = std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap_or_default().as_secs();
rec_start_clone.store(now, Ordering::SeqCst);
println!("ToggleRecording: StartRecording requested, waiting for keyframe...");
}
},
Command::ToggleAudio => {
let cur = audio_muted_clone.load(Ordering::SeqCst);
audio_muted_clone.store(!cur, Ordering::SeqCst);
println!("Audio mute toggled: {}", !cur);
},
_ => {}
}
}
},
recv(audio_rx) -> audio_res => {
if let Ok(mut audio_chunk) = audio_res {
if audio_muted_clone.load(Ordering::Relaxed) {
for sample in audio_chunk.iter_mut() {
*sample = 0.0;
}
}
if let Some(enc) = audio_encoder.as_mut()
&& let Ok(audio_packets) = enc.encode_pcm(&audio_chunk) {
for mut pkt in audio_packets {
pkt.set_stream_index(1);
if normal_recording && !normal_waiting_keyframe
&& let Some(muxer) = normal_muxer.as_mut() {
let rec_base_video_time_us = unsafe {
ffmpeg_next::ffi::av_rescale_q(
rec_base_video_pts,
video_time_base,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
};
let a_time_us = if let Some(a_tb) = audio_time_base {
unsafe {
ffmpeg_next::ffi::av_rescale_q(
pkt.pts(),
a_tb,
ffmpeg_next::ffi::AVRational { num: 1, den: 1_000_000 },
)
}
} else {
0
};
if a_time_us >= rec_base_video_time_us {
if rec_base_audio_pts < 0 {
rec_base_audio_pts = pkt.pts();
}
let rebased = pkt.rebased(rec_base_audio_pts);
let _ = muxer.write_packet(&rebased);
}
}
if config.replay_enabled {
ring.push_overwrite(pkt);
}
}
}
}
},
recv(frame_rx) -> frame_res => {
if let Ok(f) = frame_res {
latest_frame = Some(f);
has_new_frame = true;
}
},
recv(ticker) -> _ => {
let now = std::time::Instant::now();
let elapsed = now.duration_since(stream_start);
let raw_pts = (elapsed.as_secs_f64() * config.fps as f64).round() as i64;
let pts = if raw_pts > last_video_pts { raw_pts } else { last_video_pts + 1 };
let packets_res = if has_new_frame {
has_new_frame = false;
last_video_pts = pts;
if let Some(ref f) = latest_frame {
encoder.encode_frame(f, pts)
} else {
Ok(Vec::new())
}
} else {
// Heartbeat / keepalive: if no new frame for 500ms, emit cached frame to keep video track flowing smoothly
if pts - last_video_pts >= (config.fps as i64 / 2).max(1) {
last_video_pts = pts;
if let Some(ref f) = latest_frame {
encoder.encode_frame(f, pts)
} else {
encoder.encode_cached_frame(pts)
}
} else {
Ok(Vec::new())
}
};
if let Ok(packets) = packets_res {
for mut pkt in packets {
pkt.set_stream_index(0);
if normal_recording {
if normal_waiting_keyframe && pkt.is_keyframe() {
normal_waiting_keyframe = false;
rec_base_video_pts = pkt.pts();
rec_base_audio_pts = -1;
let codec_ctx = codec_ctx_ptr as *mut ffmpeg_next::ffi::AVCodecContext;
let filename = scythe::config::ScytheConfig::format_video_filename("Recording", "mp4");
let full_path = config.resolve_save_path(&filename);
let audio_codec_ctx = audio_codec_ctx_ptr.map(|p| p as *mut ffmpeg_next::ffi::AVCodecContext);
normal_muxer = unsafe { Muxer::new(&full_path, codec_ctx, audio_codec_ctx).ok() };
println!("Started normal recording to {}", full_path);
}
if !normal_waiting_keyframe
&& let Some(muxer) = normal_muxer.as_mut() {
let rebased = pkt.rebased(rec_base_video_pts);
let _ = muxer.write_packet(&rebased);
}
}
if config.replay_enabled {
ring.push_overwrite(pkt);
}
}
}
}
}
}
});
let _ = recorder_handle.join();
Ok(())
}